ROMEOVILLE WFO, IL US
GHCN ID: USC00117457 · IL, US · 201.2 m elevation · Records 1997-2026 (29 years)
Primary station for Crest Hill, IL.
Monthly climate normals (1991-2020)
| Month | High | Low | Mean | Precip | Snow |
|---|---|---|---|---|---|
| January | 31.7°F | 16.1°F | 23.9°F | 2.19 in | 10.6 in |
| February | 36.3°F | 19.7°F | 28.0°F | 1.98 in | 8.7 in |
| March | 48.5°F | 29.7°F | 39.1°F | 2.71 in | 4.2 in |
| April | 61.0°F | 39.6°F | 50.3°F | 4.11 in | 0.9 in |
| May | 72.4°F | 50.3°F | 61.4°F | 4.81 in | — |
| June | 81.5°F | 60.3°F | 70.9°F | 4.68 in | — |
| July | 84.7°F | 64.5°F | 74.6°F | 4.50 in | — |
| August | 82.7°F | 63.0°F | 72.8°F | 4.36 in | — |
| September | 76.4°F | 55.4°F | 65.9°F | 3.31 in | — |
| October | 63.8°F | 43.5°F | 53.7°F | 3.67 in | 0.1 in |
| November | 48.9°F | 31.9°F | 40.4°F | 2.67 in | 1.2 in |
| December | 36.8°F | 22.0°F | 29.4°F | 2.15 in | 7.5 in |