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5 Best Atomic Clocks with Indoor Outdoor Temperature


Most recommended
La Crosse Technology Atomic Clock
  • Color Grey/Black
  • 11.1 x 1.14 x 6.61 inches
  • Clock
A good choice too
AcuRite 75077A3M Self-Learning Forecast
  • Color Brown, Rose Gold
  • Atomic
  • 1 x 7.9 x 6.2 inches
A good choice too
La Crosse Technology WS-8115U-S-INT Atomic
  • Color Silver
  • Material Plastic
  • 9 x 0.75 x 7.25
La Crosse Technology 308-1451 Atomic
  • Color Silver
  • Material Plastic
  • 0.85 Pounds
La Crosse Technology 513-1311OT Jumbo
  • Color Silver
  • Material Plastic
  • Atomic

Choose the Best Atomic Clock with Indoor Outdoor Temperature

Customer’s Choice: the Best Rated Atomic Clocks with Indoor Outdoor Temperature

165 users answered this survey. Please help us improve this review!

49.70% of users selected La Crosse Technology Atomic Clock, 21.21% selected AcuRite 75077A3M Self-Learning Forecast, 9.09% selected La Crosse Technology WS-8115U-S-INT Atomic, 4.85% selected La Crosse Technology 308-1451 Atomic and 15.15% selected La Crosse Technology 513-1311OT Jumbo. Every month we analyze your answers and change our rating.

A clock that can tell you the time, date, indoor and outdoor temperature is a great investment in your home. A good atomic clock will not only give you accurate time but also help you to save money by letting you know what the weather is like outside before deciding whether or not to go out. Here are some of the best atomic clocks with both indoor and outdoor temperatures available on the market today!

La Crosse Technology 513-1417AL-INT Atomic Clock

Sometimes you have to break free. When it’s time for a smarter, sleeker design, this Atomic Clock has the perfect look. Its smaller form factor hides many of its features making it great for any space.

The numbers are big and bright so there is never any issue seeing the time no matter what your eyesight may be like without glasses or contacts. For those that want to know all about the weather outside, this clock will show not only temperature but also changes in trends too! Other fun features include an easy-to-read calendar with a monthly number display as well as dual power options for convenience when away from home since one set includes batteries included.

  • Sleek and modern design
  • Dual power options
  • Big and bright display
  • Batteries included

  • Not waterproof
  • Pricey for some budgets

AcuRite 75077A3M Self-Learning Forecast Wireless Weather Station with Large Display and Atomic Clock

Summer can be a scary thing. The AcuRite Indoor/Outdoor thermometer with an atomic clock is the perfect way to know what climate changes are happening right in your own backyard.

With readings from indoor and outdoor temperature, humidity levels as well daily high low records; you’ll always be able to tell if it’s hot or rainy outside without having to go anywhere else! Plus this device also gives hyperlocal forecasts 12 hours ahead of time so that no matter where you find yourself on any given day – whether near our house (where we placed the sensor) or far away somewhere more remote-you can stay up-to-date about all sortsa weather at once! You can’t go wrong checking out this personal weather station with trend arrows to show at which point they’re heading down.

  • Simple to read
  • Large LCD screen
  • Self-learning atomic clock
  • Remote temperature sensor

  • Battery life could be better
  • Sometimes seems inaccurate

La Crosse Technology WS-8115U-S-INT

If you are looking for a reliable, easy to read time, this is the perfect clock for your needs. You can have up to 4 different languages configured with this clock so it is perfect.

It features a temperature display including indoor and outdoor temperature readings which helps make sure that your home stays cool no matter what. This product alerts you when daylight savings occurs informing you whether or not to change the clock according to federal law. The atomic clock automatically adjusts for daylight saving time allowing people who use 2 clocks (work & home) to stay consistently accurate! This wireless transmission system sends out the information wirelessly making sure that no other wall socket requires power!

  • Automatically adjusts for daylight saving time
  • Four different languages can be configured
  • Wireless transmission system

  • Not as many customizable features as other products

La Crosse Technology 308-1451 Atomic Forecast Station

You’ll be the envy of every other fisherman in town with this La Crosse Technology 308-1451. It can’t get any better fishing weather than when you’re out on the water!

This product shows both indoor and outdoor temperatures to help you plan accordingly for your next excursion, while also displaying a 12-hour history barometric pressure graph. If it’s raining, however, there’s no need to worry— this product is equipped with an atomic self-setting time and date function that will take care of DST adjustments automatically. And did we mention that its LED backlight will keep you well informed even in dark conditions?

  • Auto set clock and DST changes
  • Informs in dark conditions with LED backlight.
  • Can be used for a fishing weather forecast.
  • Displays both indoor and outdoor temperatures.

  • Not a colour screen.
  • Not suitable for above freezing temperatures.

La Crosse Technology 513-1311OT

Turn yourself into a bonafide superhero with these incredible gadgets. Your office will be the envy of every colleague, and you’ll never have to worry about being late for work again with this innovative timepiece.

The La Crosse Technology 513-1311OT boasts all the goodies of a wizard’s lair without the hassle of having to clean it up afterwards. A high accuracy temperature sensor takes your temperature from 330 ft away so leave those singed robes at home! With accurate and speedy data sent wirelessly on an easy to read extra large digital clock, getting late is as antiquated as parchment scrolls are obsolete like what we used before the paper was invented.

  • Great for people with bad eyesight
  • Looks like a futuristic gadget
  • Accurate and speedy data sent wirelessly

  • Expensive

Buyer’s Guide

Benefits of using an atomic clock with indoor and outdoor temperature

An anatomic clock that measures indoor/outdoor temperature has lots of benefits that can help people keep track of weather conditions so as not to get caught up in rain storms or have any other problems due to extreme changes in the natural world’s patterns.

  • In the case of an atomic clock with outdoor temperature, it enables you to see the weather forecast. This will come in handy for people who are quite concerned about their health and want to stay updated regarding changes in the weather conditions.
  • There are some atomic clocks available with an indoor or outdoor temperature display. These can be used to measure the humidity levels in your surroundings and this way you will know when it’s time for a change of air conditioner filters, clothes dryers etcetera.
  • An atomic clock with both the indoor/outdoor temperatures gives you accurate readings regarding how cold or hot it is outside at any given moment. This helps people decide whether they should go out hiking early in the morning because there’s no risk of getting caught up in rainstorms later on during their walk.
  • One more benefit that comes along with using an atomic clock is being aware of what kind of weather conditions await right before leaving home so that one can plan accordingly. For example, if you know that your lunchtime is going to be sunny and warm then it’s a good idea to go out shopping after the heavy rain has stopped because there won’t be any more rainfall in the afternoon.
  • If an atomic clock with both indoor and outdoor temperatures is used by people who work outdoors most of the time during winter or summer seasons; they will not risk getting sick due to severe weather conditions (this depends on where they live). Thus, preventing them from missing school/work which can lead to losing money and bad grades.
  • Those who are concerned about climate change and want to do their part in helping the environment by switching off lights, electronic devices etcetera whenever they don’t need them for a while should use an atomic clock with both indoor/outdoor temperatures. This way you will be able to see just how much energy is being wasted when appliances are left plugged into electricity sockets instead of being switched off at least during nighttime hours.
  • There is a digital display present which shows indoor as well as outdoor temperatures at once making it convenient for you. You can check both these readings from a single device!
  • You will be able to read the time in an analogue fashion unless you choose not to because there are buttons that can turn off both indoor/outdoor temperature modes.
  • Another benefit of using atomic clocks with outdoor and indoor temperatures is being aware of how much energy your AC unit consumes so as not to waste electricity during peak hours. This way, it’s possible to save some money on monthly bills while also doing something positive for the environment which should always be kept in mind when making any kind of purchase whether it’s related to personal or professional use.

Things to Consider Before Purchasing

There are a few things to consider before you purchase your clock.


First, you must consider the accuracy of the clock. You want to make sure that it is accurate enough for your needs. If you are using this as a time source for work-related purposes, then an extremely accurate atomic clock would be necessary. It should be able to tell what second it is within one billionth of a second (which means that every 100 million years or so there could maybe be an error). Some clocks are able to be off by only one second every 100 million years.

However, if you just want an atomic clock for fun or personal reasons then a less accurate clock would be okay. This is because one billionth of a second sounds like it’s pretty precise but that really isn’t very accurate when talking about human time scales which is what we care about most in our day-to-day lives. We simply don’t need the immediate precision of this level of accuracy on such short timescales (of seconds) unless you’re timing something extremely important and rare with your clock (like the caesium atom).

Some clocks even have adjustable levels of inaccuracy so they can fit differently depending on what kind of applications you’re using it for.

There are many different types of clocks available on today’s market and they all vary in terms of quality and price range. The more expensive ones tend to have better precision than cheaper models since their purpose is to display the most precise information possible at all times without any delays or errors. However, if your goal isn’t necessarily to have the most precise clock, but one that is accurate enough for your needs, then you should consider looking at less expensive options.

Also, if accuracy is extremely important to you (meaning it has to be within 100 nanoseconds or so), then there are atomic clocks specifically designed to meet these requirements; however, they tend to cost more than average types of models available on today’s market.


Second, you must consider the location of where you will be placing your atomic clock. If this is going to be indoors then that would affect how much accuracy you need but if this is just an outside clock then it doesn’t matter as much because most outdoor clocks are already accurate enough with their timekeeping due to being near atomic-powered broadcast towers.

Location is important because you need to figure out whether you are going indoors or outdoors.

If you want to place your atomic clock in your garage or outside, you need to figure out if there are any obstructions. For example, I bought my first atomic clock for use in my garage which was attached directly adjacent to a high power digital TV transmitter tower about 30 miles away from me (I live on top of a hill with a perfect line of sight). Because there were no obstructions between us and these transmitters, even though my house sits at the bottom of the hill, I get full signal strength so my atomic clock has never been off by more than a few seconds.

If you want to place your atomic clock indoors or outdoors, consider where it will be placed since location affects accuracy greatly.

On another side note: If you are going to have this outside then make sure that you find one that is weather resistant because some clocks can’t stand up against rain or snow.

Additionally, if you are placing this clock indoors then make sure that it has both indoor and outdoor temperature readings because I have found that the atomic clocks at department stores usually only read indoor temperature which is useless for most people who want to know what the actual outside temperature is like where they live. If your atomic clock can update its time from one of these broadcast towers as well as tell you how hot or cold it is outside then you will be getting a lot more use out of your purchase than someone who just went with an ordinary digital wall clock instead.

Finally, you don’t want to place your atomic clock in direct sunlight, excessive heat or cold, moist areas (according to my research weather changes can affect the accuracy of these timepieces), high humidity locations and you should try not to drop it because that could damage sensitive internal components.


Design is another important feature to consider when purchasing an atomic clock. Your wall-mounted timepiece should fit in aesthetically with your surroundings, and it should also be placed somewhere that is easily visible from anywhere in the room. The last thing you want is for people to spend hours looking for where they saw a clock hanging on the wall moments before because nobody could tell what type of design it had.

Calendars are one of our best friends, but there’s nothing more frustrating than having a calendar sitting out where everyone can see it only for no one to ever look at its date! An analogue or digital atomic wall clock will always have the current date displayed clearly – leaving no doubts as to whether anyone has checked today’s schedule. In fact, some models even come with screen projections so that you can see what time it is even in the dark!

There are many cases where you need to reference the current time with regard to sunrise or sunset. With an atomic clock, all you have to do is look at your wall-mounted device and remember what colour it was displaying when you walked into the room – now there’s no more guessing!

All of this information can be collected on a single atomic alarm clock so that everything remains centralized. For convenience purposes, many designs allow users to adjust both date display formats as well as temperature units (ie Fahrenheit/Celsius). Some go even further by allowing usage in multiple time zones or alternative world times for people who may not live in 24 hour day-night cities like New York City. There truly are some incredible gadgets out there if we take enough time looking around.

There are many styles of atomic clocks available to you, all with different levels of functionality. As stated earlier in this article, there are digital models that do not show the time until they ‘awaken’ from a sleep mode – these can be advantageous because it saves energy and space for those who prefer simpler designs. There’s no reason why an atomic clock has to take up more than one spot on your wall!

There are also analogue styles that have actual hands or needles so that users can view their current date/time at any moment without having to press buttons or wait for anything else. Although many people consider analogue-style atomic clocks as being old fashioned, they still have their benefits just like every other design out there! Analogue models tend to use less power and usually have a smaller design since they don’t require screens.


One more important consideration is durability. If you are looking for a clock that will work well outdoors, then it should still be fully functional even if it gets wet or is exposed to harsh weather. There are many options available on the market that can stand up against various types of tough conditions and keep working just fine.

Durability depends on the material used to build the clock. Clocks that are made of plastic tend to be less durable, while those built from metal or glass should last much longer. Moreover, if you are looking for a clock that can be moved around, it should also have rubber or plastic feet to protect the flooring underneath.

A small clock with a temperature sensor might not work well in some areas but larger ones may do better instead depending on what type of location you want them placed around your home accordingly. They also can help ensure everyone stays on track throughout each day because they do not lose any minutes like regular watches oftentimes tend to during their existence period by time passing along.


Displays help you to see the time easily, no matter your location. There are a few types of displays that you can go with.

The first is an actual LCD display, which is probably the most common nowadays. However, there are also LED displays that might be easier to read in some cases because they have brighter digits or letters. Keep this in mind if you’re going for a clock where it has to be easy on your eyesight so these ones may be a better choice. Finally, there are also projection clocks that project the time onto the wall. These ones may be completely unnecessary for most people but they look really cool!

If you want to choose a clock with a display that is easy to read then go for LED or projection clocks. They are better if you have poor eyesight too!

The last type of atomic clock displays I will mention here are ones with an outdoor temperature being displayed along with indoor ones in the same clock. These ones can be very helpful if you need to know the temperature at all times and don’t want to look it up on your phone.

If having both indoor and outdoor temperatures displayed in one clock appeals then check out models that do this too.


You can also find atomic clocks with alarm features. This is useful if you need to set a time when activity begins, such as waking up in the morning or starting your workday. Some models can accommodate multiple alarms.

If you want to set the alarm time for each day, you can do so. Some models also include a snooze button while others only have the option of shutting the alarm off completely once it goes off.

If you are looking for an atomic clock with alarm features, make sure that it notifies you when your specified time is reached by beeping or emitting another type of audible noise instead of just displaying the information on its screen. This will help ensure that you never miss important deadlines because you didn’t hear your device go off in the other room.

Moreover, if you are concerned about the alarm waking up others in your household, opt for a model that allows you to turn off the volume or use another feature that does not make noise.

Many modern models can be set with additional options beyond an on and off switch. Some include different types of alarms such as one for weekend use or even ones designed specifically for certain days of the week. This is useful when you need something other than just a standard alarm clock without all the bells and whistles. The options may vary between models, so make sure to check the product description before you buy.

One bonus feature of alarm clocks with atomic timekeeping is that they are always extremely accurate because they receive signals automatically from a radio station instead of needing to be manually adjusted each day like standard clocks. This ensures that your clock will never display an incorrect time even if there are changes in daylight savings or other events that might throw off the times on regular devices.


There are many atomic clock features and technological advances that make these clocks highly desirable.

One of the most important ones is the atomic timekeeping itself. Atomic clocks are incredibly accurate, essentially accurate to the second.

These clocks are always on time because they update their atomic clock signal through a set of radio signals.

The atomic clock signal updates itself every second, but the time displayed on these clocks is more accurate than that of their predecessors because they update themselves 60 times per minute.

This means you will never need to set your alarm again! There are other features that make an atomic clock stand out from regular ones as well:

  • A large digital display with bright digits for high visibility in day or night conditions
  • Wired and battery backup power options (for when there’s a blackout)
  • Date and temperature functions (so you know exactly what the weather is outside).
  • Many atomic clocks come with a built-in calendar and alarm clock, so you’re also getting two functions for the price of one.
  • Moon phase and other astronomical data (to help you plan your stargazing adventures)
  • Other time zones features that can be helpful for those who travel from country to country.
  • Night vision LED display for easy-to-read information in the dark.

No GMT support

GMT support is not an option if you need absolute accuracy.

No radio signal means that the clock will not be able to update itself, which is standard for most atomic clocks on the market today.

If you travel often, this is especially true since your time zone will be different from where the device is set up. Depending on how much travelling you do and in which parts of the world, having GMT or UTC support might make a huge difference for you so we’ve included this feature as one of our main criteria when creating our list of best atomic clocks with indoor outdoor temperature.

Some models offer both modes but others only have one option that cannot be changed at all. Their specifications claim they can automatically update their internal clock according to UTC once every 12 hours (or 24 hours) but what happens if you are not home? This means that during certain periods of the day, your clock will be running on ‘frozen’ time.

To avoid this problem, most atomic clocks that offer GMT support also allow you to manually update them with the push of a button so even when you are not home they continue working correctly and accurately. This is especially important if UTC/GMT matters in certain situations for your daily activities or job requirements.

So why would one opt for an atomic clock without GMT? The answer can vary depending on what each person needs it for but two common cases include:

  • No radio signal receiver means no automatic updates – If you require absolute accuracy in all kinds of weather conditions then buying a radio-controlled device might not be the right choice since many models struggle under heavy cloud coverage, especially during winter.
  • No GMT support – If you travel a lot and thus your time zone changes from one place to another then owning an atomic clock that does not offer UTC/GMT updates might be the best choice for you as well since it won’t automatically update during certain periods of the day.

Difference between atomic and other types of clock

Atomic clocks are different from other types of clock because they can receive radio waves which allow them to set their time automatically. Other clocks, like the quartz crystal ones, do not have this feature and must be manually readjusted when it is necessary to change the time.

In addition, atomic clocks are considered to be the most accurate ones because they don’t rely on quartz crystals. Instead, they use a natural vibration in cesium and rubidium atoms that match certain frequencies. When these two types of atoms absorb energy from microwaves or radio waves, their vibrations increase by 17 million times per second which makes it possible for them to determine time with extreme accuracy.

This means that even when there is no signal present (like during power outages), an atomic clock will continue running for between 15 minutes and 24 hours after losing one minute’s worth of time before stopping completely so you should always check whether your device has enough battery left if you want to avoid this happening.

Finally, atomic clocks are also different from the others because they can offer indoor and outdoor temperature readings. This makes them very useful for people who are into weather forecasting or have other reasons to keep track of changes in temperatures at various locations around their homes, offices etc.

The best atomic clock models with this feature normally come with a built-in sensor which measures air temperature as well as surface temperature so you won’t be forced to buy extra accessories if you want to benefit from both features.


Which is the most accurate atomic clock in physics?

The answer to this question is not so simple. There are many atomic clocks in physics and they all have different accuracies which depend on their use. The most accurate clock that exists today according to the National Institute of Standards and Technology (NIST) or Physikalisch-Technische Bundesanstalt (PTB) is the NIST-F², a fountain clock with an accuracy of about 200 times better than traditional caesium clocks! However, it does require some rather special conditions such as temperature near absolute zero (-273°C). This means that at room temperature, these types of atomic clocks can only be used for timekeeping experiments within high precision labs like CERN’s ‘Time’ project.

Are atomic clocks worth it?

Atomic clocks have become a necessity for scientists and engineers who need to perform experiments at the limits of what is physically possible. The investment in atomic clock technology has been repaid many times over by thousands of successful projects such as GPS, time synchronisation protocols used on the internet, or even just more precise satellite orbits that allow us to spot smaller objects on earth.

Is Big Ben the most accurate clock?

Big Ben in London is a very accurate clock by traditional standards with an accuracy of about +- 0.002 seconds per day but it does not keep atomic time, missing the International Atomic Time (TAI) standard by over two minutes! This inaccuracy arises from its use of a conventional pendulum instead of an atom or ion trap and there are plans to correct this in the future.

Why are atomic clocks more accurate than quartz clocks?

Atomic clocks work by measuring the natural frequency of atoms and keeping them in a certain state such as ‘excited’, which can then be used to measure vibration or rotation. Quartz watches, on the other hand, only use vibrations from quartz crystals that are measured with an oscillator to keep time.

Useful Video: 10 Best Atomic Clocks with Review & Details – Which is the Best Atomic Clock? – 2019

Final Thoughts

You really can’t go wrong with one of the atomic clocks listed above. They are all good products for various reasons, and they should be able to give you great results no matter which model you decide on. Just try them out yourself and see what works best for your unique situation!

Atomic clocks with indoor and outdoor temperatures are very popular, and they are a great way to ensure your plants get the necessary amount of water during hot weather. If you have been looking for one but haven’t found anything that works well yet, then check out our top picks!

People all over the world love atomic clocks with indoor and outdoor temperatures because they work great no matter where you put them. Just check out our buyer’s guide if you want more info on these amazing devices!

The best part of using an atomic clock with both indoor and outdoor temperatures is its accuracy throughout any kind of weather conditions or environmental changes. They are very durable products that have stood the test of time in many gardens around the world.

We hope this guide has been helpful for you and we hope you make the best decision possible when choosing what atomic clock will work best in your situation!