The official National Weather Service forecast for Durham — 35.994°N, 78.8986°W, population 396,118, 6.1 miles from I-40. Forecasts here are written by NWS RAH, this county’s forecast office.
| Durham County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 51 | 55 | 63 | 72 | 79 | 87 | 90 | 88 | 82 | 72 | 62 | 55 | 71 |
| Avg low °F | 29 | 32 | 38 | 46 | 55 | 64 | 68 | 67 | 60 | 48 | 37 | 32 | 48 |
| Precip in | 3.5 | 3.0 | 4.0 | 3.9 | 4.0 | 4.3 | 4.8 | 4.6 | 5.1 | 3.2 | 3.1 | 3.8 | 47.3 |
1996–2025 normals for Durham County — the climate division Durham sits in. All-time county record high 103.6°F (1952-07-29); record low -7.5°F (1985-01-21). Source: NOAA / National Weather Service.