Addison (IL) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Addison.
Climate overview of Addison
The climate in Addison, Illinois, United States of America, is marked by large temperature swings across the seasons, ranging from 29°C (84°F) in July to -1°C (30°F) in January.
The city receives considerable rain/snowfall, with around 1051 mm (41 in) annually. June is the wettest month. July is the sunniest month, averaging 10.6 hours of sunshine per day.
Addison Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Addison — and find the best time to visit.
Monthly Temperature in Addison
In Addison, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a comfortable 29°C (84°F) in July to a very cold -1°C (30°F) in the coolest month, January.
Nights vary from 18°C (64°F) in July to around -9°C (16°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Addison
Addison experiences significant rain/snowfall throughout the year, averaging 1051 mm (41 in) of precipitation annually. The climate in Addison shows significant variation throughout the year. Expect high rainfall in June, the wettest month, with an average of 124 mm (4.9 in) of precipitation over 14 rainy days.
In contrast, the driest month January offers drier and sunnier days, with around 51 mm (2 in) of snowfall over 10 snowy days. For more details, please visit our Addison 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 Addison
For those who appreciate different seasons, Addison serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.6 hours of sunshine daily, and embrace the darker days in December, offering only 3.6 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Addison by Month
The relative humidity is high throughout the year in Addison.
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 Addison
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 Addison
Frequently asked questions about the climate in Addison
What is the best time to visit Addison?
September typically offers the most optimal weather in Addison. In contrast, January, February, March, November and December tend to have less optimal conditions.
What temperatures can I expect in Addison?
Daytime highs range from -1°C (30°F) in January to 29°C (84°F) in July. Nighttime lows range from -9°C (16°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Addison get?
Annual rainfall is around 1051 mm (41 in). June is the wettest month with 124 mm (4.9 in), while January is the driest with 51 mm (2 in).
How sunny is Addison?
Addison 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, Addison enjoys abundant sunshine.
Addison 3-Day Forecast
Addison (IL) 3-Day Forecast
Addison on the map
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