KEOKUK LOCK DAM 19, IA US
GHCN ID: USC00134381 · IA, US · 160.6 m elevation · Records 1891-2026 (135 years)
Primary station for Hamilton, IL.
Monthly climate normals (1991-2020)
| Month | High | Low | Mean | Precip | Snow |
|---|---|---|---|---|---|
| January | 33.0°F | 16.7°F | 24.9°F | 1.61 in | — |
| February | 38.0°F | 20.3°F | 29.1°F | 1.82 in | — |
| March | 49.7°F | 30.6°F | 40.1°F | 2.54 in | — |
| April | 62.4°F | 41.4°F | 51.9°F | 4.21 in | — |
| May | 72.8°F | 52.6°F | 62.7°F | 5.26 in | — |
| June | 82.0°F | 62.5°F | 72.3°F | 5.21 in | — |
| July | 85.6°F | 66.6°F | 76.1°F | 4.08 in | — |
| August | 84.0°F | 64.8°F | 74.4°F | 3.77 in | — |
| September | 77.4°F | 56.3°F | 66.8°F | 3.42 in | — |
| October | 65.0°F | 44.4°F | 54.7°F | 3.32 in | — |
| November | 50.5°F | 32.6°F | 41.6°F | 2.56 in | — |
| December | 38.2°F | 22.5°F | 30.3°F | 1.95 in | — |