Port Gibson, MS
Climate overview — based on NOAA 1991-2020 normals from PORT GIBSON 1 NE, MS US.
Year-round temperatures (°F)
Climate summary
Port Gibson has an annual average temperature of 65.8°F with about 56.3 inches of precipitation per year and 0.5 inches of snow. The warmest month is August (average high 93.4°F), and the coldest is January (average low 35.7°F). January is typically the wettest month (6.10 in) and August the driest (3.56 in). Snow typically falls from January through February.
Best time to visit Port Gibson
Full guide →Climate change signal
All-time records →28 of 366 (7.7%) of Port Gibson'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.
| 1890s | 48 | |
| 1900s | 50 | |
| 1910s | 41 | |
| 1920s | 44 | |
| 1930s | 35 | |
| 1940s | 30 | |
| 1950s | 29 | |
| 1960s | 9 | |
| 1970s | 9 | |
| 1980s | 17 | |
| 1990s | 4 | |
| 2000s | 14 | |
| 2010s | 19 | |
| 2020s | 17 |
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 | 59.5°F | 35.7°F | 47.6°F | 6.10 in | 0.2 in | 10 |
| February | 63.7°F | 38.1°F | 50.9°F | 5.06 in | 0.2 in | 8 |
| March | 71.0°F | 45.9°F | 58.4°F | 6.01 in | 0.1 in | 9 |
| April | 77.9°F | 52.5°F | 65.2°F | 5.45 in | — | 8 |
| May | 84.9°F | 61.5°F | 73.2°F | 4.47 in | — | 8 |
| June | 90.5°F | 69.1°F | 79.8°F | 4.05 in | — | 9 |
| July | 92.9°F | 71.8°F | 82.3°F | 3.94 in | — | 9 |
| August | 93.4°F | 70.9°F | 82.2°F | 3.56 in | — | 8 |
| September | 89.1°F | 65.3°F | 77.2°F | 3.75 in | — | 7 |
| October | 80.1°F | 53.1°F | 66.6°F | 4.11 in | — | 6 |
| November | 69.1°F | 42.7°F | 55.9°F | 4.44 in | — | 7 |
| December | 61.5°F | 38.1°F | 49.8°F | 5.32 in | — | 9 |
Climate twins of Port Gibson
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).