Climate averages 1991–2020
Jackson weather
in May.
A hot, wet month: the 5th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Jackson: daytime highs average 28.1°C and nights cool to about 17.3°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 104 mm of rain on roughly 10 days, which makes May a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 48 min on an average May day.
The nearest other city in this atlas is Baton Rouge (227 km away). In May its highs average 28.9°C, 0.9°C warmer than Jackson, with 105 mm of rain.
Among the 498 cities listed in the United States, Jackson ranks joint 91st of 498 for the warmest May highs and joint 378th of 498 for the driest May (rainfall, lowest first). The mean May high of those 498 cities is 23.8°C; Jackson is 4.3°C warmer than that mean.
From May to June, average highs rise by 3.3°C to 31.4°C, and monthly rainfall falls from 104 mm to 87 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Jackson climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 13.2°C3.6°C | 3.6°C | 121 | 9.7 | 10.310 h |
| February | 15.6°C5.2°C | 5.2°C | 120 | 9.8 | 11.011 h |
| March | 19.5°C8.8°C | 8.8°C | 121 | 10.4 | 12.012 h |
| April | 23.7°C12.7°C | 12.7°C | 114 | 8.6 | 13.013 h |
| May, selected | 28.1°C17.3°C | 17.3°C | 104 | 9.7 | 13.814 h |
| June | 31.4°C21.3°C | 21.3°C | 87 | 11.4 | 14.214 h |
| July | 32.5°C23.0°C | 23.0°C | 102 | 13.8 | 14.014 h |
| August | 32.6°C22.7°C | 22.7°C | 95 | 11.5 | 13.313 h |
| September | 30.4°C19.9°C | 19.9°C | 83 | 7.3 | 12.412 h |
| October | 25.1°C14.0°C | 14.0°C | 91 | 7.4 | 11.411 h |
| November | 18.6°C8.1°C | 8.1°C | 92 | 7.8 | 10.511 h |
| December | 14.4°C4.8°C | 4.8°C | 119 | 9.4 | 10.110 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Baton Rouge in MayUnited States · 227 kmHigh 28.9°C · Low 19.5°C · 105 mm rain
- Gulfport in MayUnited States · 238 kmHigh 27.1°C · Low 20.8°C · 96 mm rain
- Metairie in MayUnited States · 257 kmHigh 28.0°C · Low 21.2°C · 93 mm rain
- New Orleans in MayUnited States · 261 kmHigh 27.7°C · Low 21.1°C · 91 mm rain
- Tuscaloosa in MayUnited States · 265 kmHigh 27.5°C · Low 17.0°C · 104 mm rain
- Mobile in MayUnited States · 270 kmHigh 27.7°C · Low 19.7°C · 87 mm rain
- Lafayette (Louisiana), United States in MayUnited States · 289 kmHigh 28.9°C · Low 20.0°C · 92 mm rain
- Memphis in MayUnited States · 317 kmHigh 26.3°C · Low 16.4°C · 117 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Jackson) is explained once on the Jackson year overview and on the Sources, method and limits page.