Best year time to visit Chicago

General weather information about Chicago

Average annual temperature is 11.0 °C

Absolute maximum temperature: 37.0 °C

Absolute minimum temperature: -19.4 °C

Number of sunny days: 179 days

Number of rainy days: 173 days

Number of snow days: 13 days

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* Weather data for Chicago United States is based on climate observations for 2026 year

Chicago air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.714.720.426.730.230.732.237.034.627.819.713.3
Average daytime temperature (°C)3.35.66.916.019.124.626.726.223.116.89.86.5
Average temperature (°C)-0.20.42.59.714.019.422.222.019.512.85.33.4
Average night temperature (°C)-2.7-3.3-0.54.89.815.518.518.616.19.91.81.2
Absolute minimum temperature (°C)-19.4-17.9-10.5-2.22.79.715.313.911.4-2.1-10.1-7.6

Chicago monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.013.014.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.510.611.913.414.615.214.913.812.511.19.89.2
Daylight minimum duration (h)9.010.011.012.014.015.014.013.011.010.09.09.0
Sunshine mean duration (h)3.17.76.99.110.411.911.810.78.46.47.03.8
Precipitation (mm)6590757947613081111701253573
Sunny days111812152119131310112115
Rainy days1291815101118182020814
Snow days811000000012

Chicago - weather forecast by months

Chicago weather in januaryChicago weather in februaryChicago weather in marchChicago weather in aprilChicago weather in mayChicago weather in juneChicago weather in julyChicago weather in augustChicago weather in septemberChicago weather in octoberChicago weather in novemberChicago weather in december

Best time to visit Chicago:

The best time to visit Chicago during the most sunny months:

  • May — 10.4(h)
  • June — 11.9(h)
  • July — 11.8(h)
  • August — 10.7(h)

The largest precipitation sum in Chicago is at

  • July — 308(mm)
  • September — 170(mm)

    • Weather forecast in the closest to Chicago admin centers

    Weather forecast in the closest towns to Chicago

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    Frequently asked questions

    When is the best time to visit Chicago?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Chicago.
    What is the weather like in Chicago?
    See average temperature, rainfall and daylight hours for Chicago by month in the table above.
    How many sunny days does Chicago have?
    The monthly weather statistics above show sunshine and rainfall patterns for Chicago throughout the year.