Jackson climate
Jackson (Mississippi, United States) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 18 °C65 °F, and about 1,457 mm57 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Jackson climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 1254 | 235 | 744 | 1254.9 | 13 |
| Feb | 1559 | 438 | 949 | 1465.8 | 8 |
| Mar | 1967 | 846 | 1457 | 1375.4 | 2 |
| Apr | 2475 | 1254 | 1864 | 1395.5 | 0 |
| May | 2882 | 1762 | 2272 | 1154.5 | 0 |
| Jun | 3289 | 2170 | 2680 | 1104.3 | 0 |
| Jul | 3392 | 2272 | 2882 | 1295.1 | 0 |
| Aug | 3391 | 2272 | 2882 | 1154.5 | 0 |
| Sep | 3188 | 1966 | 2577 | 983.9 | 0 |
| Oct | 2678 | 1355 | 1966 | 1054.2 | 0 |
| Nov | 1966 | 643 | 1355 | 1014.0 | 3 |
| Dec | 1457 | 338 | 947 | 1365.3 | 10 |
| Year | 3392 | 235 | 1865 | 1,45757 | 38 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 84% | 56% | 2.7 | 10:15 |
| Feb | 84% | 62% | 3.2 | 10:00 |
| Mar | 82% | 57% | 4.4 | 11:54 |
| Apr | 80% | 52% | 5.6 | 12:56 |
| May | 79% | 50% | 6.2 | 13:48 |
| Jun | 74% | 48% | 6.6 | 14:15 |
| Jul | 74% | 51% | 6.2 | 14:04 |
| Aug | 73% | 48% | 5.8 | 13:20 |
| Sep | 72% | 42% | 5.1 | 12:19 |
| Oct | 72% | 40% | 4.2 | 11:19 |
| Nov | 76% | 45% | 3.2 | 10:27 |
| Dec | 84% | 57% | 2.4 | 10:02 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Jackson is like
The warmest month is July, with an average high of 33 °C92 °F and a low of 22 °C72 °F. The coldest is January, when highs average 12 °C54 °F and lows 2 °C35 °F. Seasons are strongly marked: the warmest month is on average 20.9 °C37.6 °F warmer than the coldest.
It is wet, with about 1,457 mm57 in of precipitation per year. Rain is spread fairly evenly through the year. The wettest month is February (146 mm5.8 in), the driest is September (98 mm3.9 in).
Relative humidity ranges from 72% in September to 84% in February. The clearest skies (lowest average cloud amount, 40%) are typical of October. Average wind speed near the ground ranges from 2 km/h (2 mph) in July to 4 km/h (2 mph) in February. Daylight lasts from about 10.0 hours in December to 14.3 hours in June.
Best time to visit Jackson
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May and October and November: average highs of 19 °C66 °F to 28 °C82 °F with 101 mm4.0 in to 115 mm4.5 in of precipitation per month.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Jackson
- Winter (December–February) — highs 1254 to 15 °C59 °F, lows 235 to 4 °C38 °F, about 136 mm5.3 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
- Spring (March–May) — highs 1967 to 28 °C82 °F, lows 846 to 17 °C62 °F, about 130 mm5.1 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
- Summer (June–August) — highs 3289 to 33 °C92 °F, lows 2170 to 22 °C72 °F, about 118 mm4.6 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
- Autumn (September–November) — highs 1966 to 31 °C88 °F, lows 643 to 19 °C66 °F, about 102 mm4.0 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
How Jackson compares
Compared with Baton Rouge, about 227 km to the southwest, Jackson is on average 1.7 °C3 °F cooler and receives 7% less precipitation (1,457 mm57 in vs 1,561 mm61 in). The difference is largest in February (2.9 °C5.3 °F cooler).
Of the 222 places in the United States covered by World Climates, Jackson is the 68th warmest by annual mean temperature and the 9th wettest by annual precipitation. See all of them on the United States climate page.
Places in other countries with the most similar temperature and rainfall pattern: Pingxiang (China, Cfa), Guankou (China, Cfa) and Zhuzhou (China, Cfa).
Nearby places
- Baton Rouge 227 km · 20 °C68 °F · 1,561 mm61 in
- New Orleans 261 km · 21 °C70 °F · 1,534 mm60 in
- Tuscaloosa 265 km · 18 °C64 °F · 1,415 mm56 in
- Mobile 270 km · 21 °C69 °F · 1,590 mm63 in
- Lafayette 289 km · 20 °C69 °F · 1,583 mm62 in
- Memphis 317 km · 17 °C62 °F · 1,357 mm53 in
- Little Rock 335 km · 17 °C62 °F · 1,369 mm54 in
- Shreveport 336 km · 19 °C66 °F · 1,275 mm50 in
Frequently asked questions
What is the warmest month in Jackson?
July is the warmest month in Jackson, with an average high of 33 °C (92 °F) and an average low of 22 °C (72 °F).
What is the coldest month in Jackson?
January is the coldest month, with an average high of 12 °C (54 °F) and an average low of 2 °C (35 °F).
When does it rain the most in Jackson?
February is the wettest month with about 146 mm (5.8 in) of precipitation; September is the driest with about 98 mm (3.9 in).
What is the best time to visit Jackson?
Judging by long-term averages, the most comfortable months are May and October and November.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.