ROCK ISLAND L&D 15, IL US
GHCN ID: USC00117391 · IL, US · 173.1 m elevation · Records 1866-2026 (160 years)
Primary station for Andalusia, IL.
Monthly climate normals (1991-2020)
| Month | High | Low | Mean | Precip | Snow |
|---|---|---|---|---|---|
| January | 31.0°F | 13.4°F | 22.2°F | 1.49 in | — |
| February | 36.3°F | 17.9°F | 27.1°F | 1.78 in | — |
| March | 48.4°F | 28.0°F | 38.2°F | 2.62 in | — |
| April | 61.4°F | 39.3°F | 50.3°F | 3.81 in | — |
| May | 72.3°F | 50.8°F | 61.6°F | 5.12 in | — |
| June | 81.2°F | 61.0°F | 71.1°F | 5.22 in | — |
| July | 83.9°F | 64.9°F | 74.4°F | 4.22 in | — |
| August | 82.4°F | 63.1°F | 72.7°F | 4.03 in | — |
| September | 76.7°F | 55.0°F | 65.8°F | 3.31 in | — |
| October | 63.7°F | 42.9°F | 53.3°F | 2.89 in | — |
| November | 48.7°F | 30.2°F | 39.4°F | 2.30 in | — |
| December | 36.0°F | 19.7°F | 27.8°F | 2.02 in | — |