Jackson, MS Climate & Monthly Averages
Jackson has a humid subtropical climate. July is the hottest month, averaging 91° by day; January is the coldest at 57°.
Sunshine is a defining feature of Jackson's climate
Weather in Jackson follows a humid subtropical pattern. The warmest and coolest months, July and January, average 91°F (33°C) and 57°F (14°C) by day; nights in those months run 74°F (23°C) and 38°F (3°C).
How sun, temperature and rain fit together
Sunshine averages 9.3 hours a day over the year, peaking in June at 12.0 hours. At its warmest, in July, Jackson runs to 91°F (33°C) in the afternoon and back to 74°F (23°C) by dawn. January is the coolest month, with highs of 57°F (14°C) and lows near 38°F (3°C). Average highs hold at or above 30°C for 4 months of the year, June through September being the unbroken run.
Snowfall is rare but not unheard of. Three of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is October through November. Days and nights are about 10°C apart on average - wider than roughly 78% of the cities we track. The gridded 2015-2024 daily record for this location tops out at 103°F (39°C) and bottoms at 12°F (-11°C) - decade extremes, not all-time station records.
More climate facts for Jackson
- Hottest month: July - highs near 91°F (33°C)
- Coldest month: January - highs near 57°F (14°C)
- Decade extremes (2015-2024): 103°F (39°C) high · 12°F (-11°C) low
- Wettest month: April (10 rainy days) · Sunniest: June (12.0 h sun/day)
- Climate type: humid subtropical
- Annual swing: 19°C between the average warmest and coolest month · day to night: 10°C
- Months averaging 30°C or hotter: 4
- Average humidity: 74%
The most comfortable sunny-weather window
Best time to visit Jackson
The best time to visit Jackson is generally October to December and February, when warm days, manageable rainfall and plenty of daylight line up. Daytime temperatures in that window sit near 69°F (20°C), with rain on about 10 days a month. For the same question asked the other way round, see where else is warm in October.
What to pack
Pack for Jackson with lightweight, breathable clothing and serious sun protection, a warm jacket and layers for the cooler season and a compact umbrella or rain shell. July nights average 74°F (23°C), so evenings rarely match the afternoons.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 57° | 38° | 10 | 5.3 in | 6.9 h/day | 10.2 h | 32% | 74% |
| February | 62° | 43° | 12 | 5.6 in | 7.0 h/day | 11.0 h | 41% | 76% |
| March | 69° | 50° | 12 | 6.0 in | 8.4 h/day | 11.9 h | 40% | 75% |
| April | 74° | 54° | 10 | 6.9 in | 9.3 h/day | 12.9 h | 33% | 74% |
| May | 83° | 63° | 12 | 4.9 in | 11.1 h/day | 13.8 h | 40% | 75% |
| June | 89° | 70° | 13 | 4.2 in | 12.0 h/day | 14.3 h | 42% | 74% |
| July | 91° | 74° | 15 | 4.6 in | 11.8 h/day | 14.1 h | 49% | 75% |
| August | 90° | 73° | 14 | 4.8 in | 10.8 h/day | 13.3 h | 44% | 74% |
| September | 88° | 68° | 8 | 2.9 in | 10.6 h/day | 12.3 h | 27% | 69% |
| October | 79° | 58° | 6 | 3.5 in | 9.3 h/day | 11.3 h | 19% | 67% |
| November | 67° | 48° | 9 | 4.0 in | 7.9 h/day | 10.5 h | 30% | 74% |
| December | 61° | 44° | 11 | 5.0 in | 6.7 h/day | 10.0 h | 36% | 77% |
Jackson month by month
Each card shows the average high and low. The bar places that month between Jackson's coldest night and warmest afternoon.
January
- Rain
- 10 days
- Sunshine
- 6.9 h
- Daylight
- 10.2 h
February
- Rain
- 12 days
- Sunshine
- 7.0 h
- Daylight
- 11.0 h
March
- Rain
- 12 days
- Sunshine
- 8.4 h
- Daylight
- 11.9 h
April
- Rain
- 10 days
- Sunshine
- 9.3 h
- Daylight
- 12.9 h
May
- Rain
- 12 days
- Sunshine
- 11.1 h
- Daylight
- 13.8 h
June
- Rain
- 13 days
- Sunshine
- 12.0 h
- Daylight
- 14.3 h
July
- Rain
- 15 days
- Sunshine
- 11.8 h
- Daylight
- 14.1 h
August
- Rain
- 14 days
- Sunshine
- 10.8 h
- Daylight
- 13.3 h
September
- Rain
- 8 days
- Sunshine
- 10.6 h
- Daylight
- 12.3 h
October
- Rain
- 6 days
- Sunshine
- 9.3 h
- Daylight
- 11.3 h
November
- Rain
- 9 days
- Sunshine
- 7.9 h
- Daylight
- 10.5 h
December
- Rain
- 11 days
- Sunshine
- 6.7 h
- Daylight
- 10.0 h
Looking for warmer alternatives? Browse warm places by month, or compare Jackson's coolest part of the year: January, December, February.
Seasonal weather under Jackson's sunnier skies
Spring (March through May)
Through spring, Jackson is mild and warm: 75°F (24°C) by day, 56°F (13°C) after dark, and rain falls on around 35 of the 90 days.
Summer (June through August)
Through summer, Jackson sits firmly in the heat: 90°F (32°C) by day, 72°F (22°C) after dark, and rain falls on around 41 of the 90 days. Daylight is generous - around 11.5 hours of sun a day. With the moisture factored in, afternoons feel hotter than the reading suggests - the humidity and dew point converter shows why.
Fall (September through November)
Through fall, Jackson is mild and warm: 78°F (26°C) by day, 58°F (14°C) after dark, and expect showers on roughly 23 days across the season.
Winter (December through February)
Winter is mild here - highs near 60°F (16°C), nights near 42°F (5°C), and rain falls on around 33 of the 90 days.
How unusual is Jackson?
- Jackson sits close to the middle of our dataset on most measures: 66°F (19°C) as an annual average, 57.5 inches (1462 mm) of precipitation and 9.3 hours of sun a day.
These comparisons use the same ten-year window for every city in the dataset.
Jackson temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.