Countryside (IL) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Countryside.
Climate overview of Countryside
Temperatures in Countryside, Illinois, United States of America, vary greatly throughout the year. July is the hottest month at 29°C (84°F), while January is the coldest at 0°C (32°F).
The city has a wet climate, receiving around 1092 mm (43 in) of rain/snowfall per year. June is the wettest month. Sunshine peaks in July, when the city sees around 10.6 hours of sunshine per day.
Countryside Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Countryside — and find the best time to visit.
Monthly Temperature in Countryside
The climate in Countryside is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a comfortable 29°C (84°F) in July to a very cold 0°C (32°F) in January.
Nighttime temperatures range from 19°C (66°F) in July to -8°C (18°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Countryside
Countryside has a notably wet climate with abundant precipitation, recording 1092 mm (43 in) of rain/snowfall per year. The seasons in Countryside bring significant changes in precipitation. The wettest month, June, receives high rainfall, with an average of 128 mm (5 in) of precipitation. This rainfall is distributed across 15 rainy days.
In contrast, the driest month, January, experiences much less snowfall, totaling 55 mm (2.2 in) over 11 snowy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Countryside 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 Countryside
In Countryside, summer days are longer and more sunny, with daily sunshine hours peaking at 10.6 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 3.6 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Countryside by Month
The relative humidity is high throughout the year in Countryside.
The city experiences its highest humidity in December, reaching 76%. In May, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Countryside
The average wind speed over the year ranges from 4 m/s (8 knots) to 6 m/s (12 knots). It is lower in June, July, August and September and higher in January, March and April. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Countryside
Frequently asked questions about the climate in Countryside
What is the best time to visit Countryside?
September typically offers the most optimal weather in Countryside. In contrast, January, February, March, November and December tend to have less optimal conditions.
What temperatures can I expect in Countryside?
Daytime highs range from 0°C (32°F) in January to 29°C (84°F) in July. Nighttime lows range from -8°C (18°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Countryside get?
Annual rainfall is around 1092 mm (43 in). June is the wettest month with 128 mm (5 in), while January is the driest with 55 mm (2.2 in).
How sunny is Countryside?
Countryside receives around 2,509 hours of sunshine per year. July is the sunniest month with 319 hours, while December is the cloudiest with just 107 hours. Overall, Countryside enjoys abundant sunshine.
Countryside 3-Day Forecast
Countryside (IL) 3-Day Forecast
Countryside on the map
Countryside is highlighted — select any city to see its climate.
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