The official National Weather Service forecast for Birmingham — 39.1658°N, 94.4513°W, 3.6 miles from I-35. Forecasts here are written by NWS EAX, this county’s forecast office.
| Clay County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 38 | 44 | 55 | 66 | 75 | 84 | 88 | 87 | 80 | 68 | 55 | 43 | 65 |
| Avg low °F | 20 | 23 | 34 | 44 | 54 | 64 | 68 | 66 | 58 | 45 | 34 | 24 | 44 |
| Precip in | 1.2 | 1.4 | 2.5 | 3.8 | 5.2 | 5.0 | 4.1 | 4.2 | 3.5 | 3.4 | 2.0 | 1.6 | 37.9 |
1996–2025 normals for Clay County — the climate division Birmingham sits in. All-time county record high 108.7°F (1954-07-14); record low -22.3°F (1989-12-23). Source: NOAA / National Weather Service.