The official National Weather Service forecast for Richmond Hill — 31.9383°N, 81.3034°W, 2.1 miles from I-95. Forecasts here are written by NWS CHS, this county’s forecast office.
| Bryan County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 62 | 66 | 72 | 79 | 85 | 90 | 93 | 91 | 87 | 79 | 71 | 64 | 78 |
| Avg low °F | 39 | 42 | 48 | 54 | 62 | 70 | 73 | 72 | 68 | 57 | 47 | 42 | 56 |
| Precip in | 3.1 | 3.5 | 3.5 | 3.2 | 3.4 | 5.8 | 5.5 | 6.1 | 4.5 | 2.9 | 2.2 | 3.4 | 47.1 |
1996–2025 normals for Bryan County — the climate division Richmond Hill sits in. All-time county record high 104.4°F (1986-07-20); record low 2.3°F (1985-01-21). Source: NOAA / National Weather Service.