Climate of Chicago
Chicago has a continental climate. It is warm in the summer and cold in the winter. The average annual temperature for Chicago is 25° degrees and there is about 322 inch of rain in a year. It is dry for 150 days a year with an average humidity of 79% and an UV-index of 3.
Climate averages for the whole year
- Day: the average daily temperature during the day is between -2°C and 25°C
- Night:the average nighttime temperature is between -7°C and 20°C
- Sea temperature: the sea temperature is between 4°C and 25°C
- Rain: it rains 155 days and there is a total of approximately 817 mm rainfall
- Snow: it snows an average of 40 days per year
- Sun hours: throughout the year there are 2661 sun hours
Maximum temperature: | between -2°C and 25°C |
Warmest month: | 25°C in July |
Coldest month: | -2°C in January |
Night temperature: | between -7°C and 20°C |
Sea temperature: | between 4°C and 25°C |
Dry days: | 170 days |
Days with rain: | 155 days |
Days with snow: | 40 days |
Total rain sum: | 817 mm |
Hours of sunshine: | 2661 hours |
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Temperature graph
This graph shows the average maximum temperature (red) and minimum temperature (blue) for Chicago.
Precipitation graph
This graph shows the average amount of rainfall per month for Chicago.
Climate table of Chicago
In this climate table you can see at a glance what the average weather per month is for Chicago. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Chicago might be like in a given month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Day temp. (°F) | 29 | 32 | 41 | 51 | 61 | 70 | 77 | 77 | 71 | 59 | 47 | 35 |
Night temp. (°F) | 20 | 23 | 32 | 40 | 51 | 60 | 67 | 67 | 61 | 49 | 37 | 28 |
Water temp. (°F) | 41 | 39 | 40 | 45 | 50 | 69 | 77 | 77 | 74 | 65 | 54 | 47 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Precipitation (inch) | 13 | 16 | 19 | 29 | 36 | 48 | 37 | 41 | 26 | 26 | 16 | 16 |
Days with rain | 6 | 5 | 11 | 16 | 18 | 17 | 18 | 17 | 14 | 14 | 10 | 9 |
Days with snow | 10 | 10 | 6 | 2 | - | - | - | - | - | - | 4 | 8 |
Dry days | 15 | 13 | 14 | 12 | 13 | 13 | 13 | 14 | 16 | 17 | 16 | 14 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Sun hours per day | 4 | 4 | 6 | 8 | 9 | 10 | 11 | 11 | 9 | 6 | 5 | 4 |
Wind force (Bft) | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 3 |
UV-index | 1 | 2 | 2 | 3 | 4 | 5 | 6 | 6 | 4 | 3 | 2 | 1 |
Best time to visit Chicago
The best time to visit Chicago in the state of Illinois is in September and September. In this period you have a pleasant temperature and little precipitation. The highest average temperature in Chicago is 77°F in July and the lowest is 29°F in January. The highest water temperature is 77°F and it does not get colder than 39°F.
Climate of Chicago by month
What is the average climate in a given month for Chicago? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.
Chicago weather experiences
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