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Fairmount, IL Climate
1991 to 2020 normals at Sidell 4n, 5.4 mi from the center of Fairmount, elevation 672 ft.
Average weather by month
Select a month for daily normals and last year's weather
| Month | Range | High | Low | Precip. | Snow |
|---|---|---|---|---|---|
| January | 33° | 17° | 2.35 in | 7.1 in | |
| February | 37° | 20° | 2.00 in | 6.7 in | |
| March | 49° | 30° | 2.77 in | 2.4 in | |
| April | 62° | 41° | 4.15 in | 0.4 in | |
| May | 73° | 53° | 4.66 in | 0.0 in | |
| June | 82° | 62° | 4.61 in | 0.0 in | |
| July | 84° | 64° | 4.72 in | 0.0 in | |
| August | 83° | 62° | 3.25 in | 0.0 in | |
| September | 78° | 54° | 2.73 in | 0.0 in | |
| October | 65° | 43° | 3.33 in | 0.0 in | |
| November | 50° | 32° | 3.34 in | 1.1 in | |
| December | 38° | 23° | 2.48 in | 6.0 in | |
| Year | 61° | 40.39 in | 23.7 in |
Frequently asked questions
- What is the hottest month in Fairmount, IL?
- July is the warmest month, with a normal high of 84°F at Sidell 4n.
- What is the coldest month in Fairmount, IL?
- January is the coldest month, with a normal low of 17°F.
- What is the wettest month in Fairmount, IL?
- July has the most precipitation on average, about 4.72 inches.