St. Marys, GA
Climate overview — based on NOAA 1991-2020 normals from BRUNSWICK 23 S, GA US.
Year-round temperatures (°F)
Climate summary
St. Marys has an annual average temperature of 67.8°F with about 47.2 inches of precipitation per year. The warmest month is July (average high 88.8°F), and the coldest is January (average low 42.9°F). August is typically the wettest month (6.53 in) and November the driest (1.68 in).
Best time to visit St. Marys
Full guide →Climate change signal
All-time records →230 of 366 (62.8%) of St. Marys's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 2000s | 66 | |
| 2010s | 179 | |
| 2020s | 121 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 62.3°F | 42.9°F | 52.6°F | 2.83 in | — | 8 |
| February | 64.9°F | 45.3°F | 55.1°F | 2.82 in | — | 8 |
| March | 69.9°F | 50.8°F | 60.3°F | 3.31 in | — | 7 |
| April | 75.6°F | 57.0°F | 66.3°F | 2.77 in | — | 7 |
| May | 82.0°F | 65.1°F | 73.5°F | 3.71 in | — | 8 |
| June | 86.4°F | 71.4°F | 78.9°F | 6.29 in | — | 11 |
| July | 88.8°F | 73.5°F | 81.2°F | 4.58 in | — | 12 |
| August | 88.5°F | 73.7°F | 81.1°F | 6.53 in | — | 14 |
| September | 84.7°F | 71.0°F | 77.9°F | 5.20 in | — | 11 |
| October | 78.9°F | 61.6°F | 70.3°F | 4.39 in | — | 9 |
| November | 70.5°F | 51.5°F | 61.0°F | 1.68 in | — | 7 |
| December | 64.8°F | 45.7°F | 55.3°F | 3.06 in | — | 9 |
Climate twins of St. Marys
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).