Clear Lake (IA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Clear Lake.
Climate overview of Clear Lake
Clear Lake, Iowa, United States of America, sees big temperature differences between seasons, with July peaking at 28°C (82°F) and January dropping to -5°C (23°F).
With around 833 mm (33 in) of annual rain/snowfall, the city has moderate precipitation levels. June is the wettest month and January the driest. It also has a distinct dry season from January to February. Sunshine peaks in July, when the city sees around 11.4 hours of sunshine per day.
Clear Lake Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Clear Lake — and find the best time to visit.
Monthly Temperature in Clear Lake
Visitors to Clear Lake can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a comfortable 28°C (82°F) in July to a very cold -5°C (23°F) in the coolest month, January.
Nights vary from 16°C (61°F) in July to around -14°C (7°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Clear Lake
Generally, Clear Lake experiences moderate precipitation patterns, averaging 833 mm (33 in) yearly. The climate in Clear Lake shows significant variation throughout the year. Expect high rainfall in June, the wettest month, with an average of 118 mm (4.6 in) of precipitation over 13 rainy days.
In contrast, the driest month January offers drier and sunnier days, with around 18 mm (0.7 in) of snowfall over 7 snowy days. For more details, please visit our Clear Lake Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Clear Lake
For those who appreciate different seasons, Clear Lake serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 11.4 hours of sunshine daily, and embrace the darker days in December, offering only 3.9 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Clear Lake
The weather does bring rainfall during this period, between 75 mm (3 in) and 118 mm (4.6 in). Wondering where to travel based on your weather preferences? Our recommendation tool helps you find destinations with your ideal climate conditions. Use our weather planner to find your perfect destination.
Frequently asked questions about the climate in Clear Lake
What is the best time to visit Clear Lake?
July, August and September typically offer the most optimal weather in Clear Lake. In contrast, January, February, March, November and December tend to have less optimal conditions. Clear Lake has a distinct dry season from January to February.
What temperatures can I expect in Clear Lake?
Daytime highs range from -5°C (23°F) in January to 28°C (82°F) in July. Nighttime lows range from -14°C (7°F) to 16°C (61°F). Temperatures vary considerably through the year.
How much rain does Clear Lake get?
Annual rainfall is around 833 mm (33 in). June is the wettest month with 118 mm (4.6 in), while January is the driest with 18 mm (0.7 in).
How sunny is Clear Lake?
Clear Lake receives around 2,620 hours of sunshine per year. July is the sunniest month with 342 hours, while December is the cloudiest with just 118 hours. Overall, Clear Lake enjoys abundant sunshine.
Clear Lake 3-Day Forecast
Clear Lake (IA) 3-Day Forecast
Clear Lake on the map
Clear Lake is highlighted — select any city to see its climate.
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