OTTAWA 5SW, IL US
GHCN ID: USC00116526 · IL, US · 160.0 m elevation · Records 1892-2026 (134 years)
Primary station for Naplate, IL.
Monthly climate normals (1991-2020)
| Month | High | Low | Mean | Precip | Snow |
|---|---|---|---|---|---|
| January | 30.7°F | 15.2°F | 22.9°F | 1.78 in | 9.2 in |
| February | 35.1°F | 18.9°F | 27.0°F | 1.54 in | 5.2 in |
| March | 47.6°F | 29.0°F | 38.3°F | 2.29 in | 3.3 in |
| April | 61.2°F | 39.4°F | 50.3°F | 3.53 in | 0.4 in |
| May | 71.7°F | 50.9°F | 61.3°F | 4.48 in | — |
| June | 79.9°F | 60.5°F | 70.2°F | 4.40 in | — |
| July | 82.9°F | 64.4°F | 73.7°F | 3.63 in | — |
| August | 81.6°F | 62.3°F | 71.9°F | 3.72 in | — |
| September | 76.4°F | 54.2°F | 65.3°F | 3.23 in | — |
| October | 64.0°F | 42.6°F | 53.3°F | 3.10 in | — |
| November | 48.5°F | 31.5°F | 40.0°F | 2.50 in | 0.8 in |
| December | 35.9°F | 21.1°F | 28.5°F | 1.99 in | 4.8 in |