ALTON, MO US
GHCN ID: USC00230127 · MO, US · 247.8 m elevation · Records 1940-2026 (86 years)
Primary station for Alton, MO.
Monthly climate normals (1991-2020)
| Month | High | Low | Mean | Precip | Snow |
|---|---|---|---|---|---|
| January | 43.8°F | 22.4°F | 33.1°F | 2.96 in | 1.7 in |
| February | 48.6°F | 25.1°F | 36.9°F | 3.39 in | 0.8 in |
| March | 58.3°F | 33.7°F | 46.0°F | 4.45 in | 0.9 in |
| April | 68.7°F | 43.2°F | 56.0°F | 4.66 in | — |
| May | 75.8°F | 53.1°F | 64.5°F | 5.57 in | — |
| June | 85.0°F | 61.7°F | 73.4°F | 3.31 in | — |
| July | 88.3°F | 65.9°F | 77.1°F | 4.01 in | — |
| August | 88.1°F | 64.2°F | 76.1°F | 3.92 in | — |
| September | 80.8°F | 55.4°F | 68.1°F | 3.46 in | — |
| October | 70.2°F | 42.8°F | 56.5°F | 3.77 in | — |
| November | 56.7°F | 33.2°F | 45.0°F | 4.44 in | — |
| December | 45.9°F | 25.7°F | 35.8°F | 3.29 in | 0.8 in |