Atlantic (IA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Atlantic.
Climate overview of Atlantic
Temperatures in Atlantic, Iowa, United States of America, vary greatly throughout the year. July is the hottest month at 30°C (86°F), while January is the coldest at 0°C (32°F).
Annual rain/snowfall is moderate at around 999 mm (39 in), with June being the wettest month. The city also has a distinct dry season from January to February, with warm summers and very cold winters.
Atlantic Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Atlantic - and find the best time to visit.
Monthly Temperature in Atlantic
The climate in Atlantic is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a comfortable 30°C (86°F) in July. In January, the coolest month of the year, temperatures drop to a very cold 0°C (32°F).
At night, temperatures range from around 17°C (63°F) in July to -12°C (10°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Atlantic
Generally, Atlantic receives mid-range precipitation levels, with 999 mm (39 in) annually. Atlantic can be quite wet during June, receiving approximately 154 mm (6.1 in) of precipitation over 13 rainy days.
In contrast, during the driest month (January), you will experience much drier conditions, with 16 mm (0.6 in) of precipitation spread across 5 snowy days. For more details, please visit our Atlantic Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Atlantic
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: September
- Warmest weather: July and August
- Fewest rainy days: January, February, March and November
- Seasonal pattern: A distinct dry season from January to February, with warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -12°C (10°F).
Frequently asked questions about the climate in Atlantic
What is the best time to visit Atlantic?
September typically offers the most optimal weather in Atlantic. In contrast, January, February, March, November and December tend to have less optimal conditions. Atlantic has a distinct dry season from January to February, with warm summers and very cold winters.
What temperatures can I expect in Atlantic?
Daytime highs range from 0°C (32°F) in January to 30°C (86°F) in July. Nighttime lows range from -12°C (10°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Atlantic get?
Annual rainfall is around 999 mm (39 in). June is the wettest month with 154 mm (6.1 in), while January is the driest with 16 mm (0.6 in).
Atlantic 3-Day Forecast
Atlantic on the map
Atlantic is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Kissimmee
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27°C (81°F) Los Angeles
24°C (75°F) San Francisco22°C (72°F) 
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