MATTOON, IL US
GHCN ID: USC00115430 · IL, US · 213.7 m elevation · Records 1893-2026 (133 years)
Primary station for Humboldt, IL.
Monthly climate normals (1991-2020)
| Month | High | Low | Mean | Precip | Snow |
|---|---|---|---|---|---|
| January | 34.8°F | 20.2°F | 27.5°F | 2.61 in | 5.2 in |
| February | 39.6°F | 23.4°F | 31.5°F | 2.18 in | 3.6 in |
| March | 51.3°F | 32.9°F | 42.1°F | 2.81 in | 1.9 in |
| April | 64.4°F | 43.3°F | 53.8°F | 4.78 in | 0.1 in |
| May | 74.3°F | 54.0°F | 64.1°F | 4.10 in | — |
| June | 82.8°F | 63.8°F | 73.3°F | 4.71 in | — |
| July | 86.1°F | 66.6°F | 76.4°F | 4.26 in | — |
| August | 84.5°F | 65.1°F | 74.8°F | 2.85 in | — |
| September | 79.2°F | 56.6°F | 67.9°F | 3.11 in | — |
| October | 66.4°F | 46.6°F | 56.5°F | 3.77 in | — |
| November | 51.2°F | 34.2°F | 42.7°F | 3.56 in | 0.6 in |
| December | 39.7°F | 25.4°F | 32.5°F | 2.55 in | 3.1 in |