GRINNELL 3 SW, IA US
GHCN ID: USC00133473 · IA, US · 275.8 m elevation · Records 1893-2026 (133 years)
Primary station for Grinnell, IA.
Monthly climate normals (1991-2020)
| Month | High | Low | Mean | Precip | Snow |
|---|---|---|---|---|---|
| January | 28.3°F | 10.2°F | 19.3°F | 1.10 in | 9.0 in |
| February | 33.0°F | 13.6°F | 23.3°F | 1.55 in | 9.1 in |
| March | 46.1°F | 24.7°F | 35.4°F | 2.22 in | 3.4 in |
| April | 59.4°F | 35.1°F | 47.3°F | 3.90 in | 0.6 in |
| May | 69.9°F | 47.1°F | 58.5°F | 5.09 in | — |
| June | 79.5°F | 57.8°F | 68.6°F | 5.53 in | — |
| July | 83.3°F | 61.8°F | 72.5°F | 3.96 in | — |
| August | 81.2°F | 59.2°F | 70.2°F | 4.37 in | — |
| September | 75.2°F | 50.2°F | 62.7°F | 3.71 in | — |
| October | 62.3°F | 38.2°F | 50.2°F | 3.21 in | 0.5 in |
| November | 46.8°F | 26.4°F | 36.6°F | 1.95 in | 1.5 in |
| December | 34.0°F | 16.3°F | 25.2°F | 1.60 in | 6.9 in |