SULLIVAN 3S, IL US
GHCN ID: USC00118389 · IL, US · 195.1 m elevation · Records 1941-2026 (85 years)
Primary station for Allenville, IL.
Monthly climate normals (1991-2020)
| Month | High | Low | Mean | Precip | Snow |
|---|---|---|---|---|---|
| January | 35.3°F | 18.5°F | 26.9°F | 2.41 in | 5.2 in |
| February | 40.2°F | 21.9°F | 31.0°F | 2.23 in | 2.4 in |
| March | 51.2°F | 31.1°F | 41.2°F | 2.83 in | 1.0 in |
| April | 64.7°F | 41.9°F | 53.3°F | 4.48 in | 0.2 in |
| May | 74.6°F | 53.4°F | 64.0°F | 4.98 in | — |
| June | 83.2°F | 62.7°F | 72.9°F | 4.95 in | — |
| July | 86.0°F | 65.2°F | 75.6°F | 4.35 in | — |
| August | 85.1°F | 62.3°F | 73.7°F | 3.16 in | — |
| September | 80.1°F | 54.6°F | 67.3°F | 2.71 in | — |
| October | 67.3°F | 43.9°F | 55.6°F | 3.30 in | — |
| November | 52.1°F | 33.0°F | 42.6°F | 3.45 in | 0.4 in |
| December | 40.3°F | 24.5°F | 32.4°F | 2.75 in | 3.7 in |