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Hillside, IL Climate
1991 to 2020 normals at Chicago Ohare INTL AP, 9 mi from the center of Hillside, elevation 658 ft.
Average weather by month
Select a month for daily normals and last year's weather
| Month | Range | High | Low | Precip. | Snow |
|---|---|---|---|---|---|
| January | 32° | 19° | 1.99 in | 11.3 in | |
| February | 36° | 22° | 1.97 in | 10.7 in | |
| March | 47° | 31° | 2.45 in | 5.5 in | |
| April | 59° | 40° | 3.75 in | 1.3 in | |
| May | 71° | 51° | 4.49 in | 0.0 in | |
| June | 80° | 61° | 4.10 in | 0.0 in | |
| July | 85° | 66° | 3.71 in | 0.0 in | |
| August | 83° | 65° | 4.25 in | 0.0 in | |
| September | 76° | 57° | 3.19 in | 0.0 in | |
| October | 63° | 45° | 3.43 in | 0.2 in | |
| November | 48° | 34° | 2.42 in | 1.8 in | |
| December | 37° | 24° | 2.11 in | 7.6 in | |
| Year | 60° | 37.86 in | 38.4 in |
Frequently asked questions
- What is the hottest month in Hillside, IL?
- July is the warmest month, with a normal high of 85°F at Chicago Ohare INTL AP.
- What is the coldest month in Hillside, IL?
- January is the coldest month, with a normal low of 19°F.
- What is the wettest month in Hillside, IL?
- May has the most precipitation on average, about 4.49 inches.