Jackson, MS Climate & Monthly Averages
The climate of Jackson
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).
Climate quick facts
- 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%
Temperatures through the year
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.
Rain, sun and snow
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.
How Jackson compares
- 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.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 57° | 38° | 10 | 5.3 in | 6.9 h/day | 74% |
| February | 62° | 43° | 12 | 5.6 in | 7.0 h/day | 76% |
| March | 69° | 50° | 12 | 6.0 in | 8.4 h/day | 75% |
| April | 74° | 54° | 10 | 6.9 in | 9.3 h/day | 74% |
| May | 83° | 63° | 12 | 4.9 in | 11.1 h/day | 75% |
| June | 89° | 70° | 13 | 4.2 in | 12.0 h/day | 74% |
| July | 91° | 74° | 15 | 4.6 in | 11.8 h/day | 75% |
| August | 90° | 73° | 14 | 4.8 in | 10.8 h/day | 74% |
| September | 88° | 68° | 8 | 2.9 in | 10.6 h/day | 69% |
| October | 79° | 58° | 6 | 3.5 in | 9.3 h/day | 67% |
| November | 67° | 48° | 9 | 4.0 in | 7.9 h/day | 74% |
| December | 61° | 44° | 11 | 5.0 in | 6.7 h/day | 77% |
Jackson month by month
Jackson weather in January
January brings highs around 57°F (14°C), lows near 38°F (3°C), about 10 wet days - typically the coldest month of the year in Jackson.
Jackson weather in February
February brings highs around 62°F (17°C), lows near 43°F (6°C), about 12 wet days.
Jackson weather in March
March brings highs around 69°F (21°C), lows near 50°F (10°C), about 12 wet days.
Jackson weather in April
April brings highs around 74°F (24°C), lows near 54°F (12°C), about 10 wet days - typically the wettest month of the year in Jackson.
Jackson weather in May
May brings highs around 83°F (28°C), lows near 63°F (17°C), about 12 wet days.
Jackson weather in June
June brings highs around 89°F (32°C), lows near 70°F (21°C), about 13 wet days - typically the sunniest month of the year in Jackson.
Jackson weather in July
July brings highs around 91°F (33°C), lows near 74°F (23°C), about 15 wet days - typically the hottest month of the year in Jackson.
Jackson weather in August
August brings highs around 90°F (32°C), lows near 73°F (23°C), about 14 wet days.
Jackson weather in September
September brings highs around 88°F (31°C), lows near 68°F (20°C), about 8 wet days - typically the driest month of the year in Jackson.
Jackson weather in October
October brings highs around 79°F (26°C), lows near 58°F (14°C), about 6 wet days.
Jackson weather in November
November brings highs around 67°F (20°C), lows near 48°F (9°C), about 9 wet days.
Jackson weather in December
December brings highs around 61°F (16°C), lows near 44°F (6°C), about 11 wet days.
Seasons in Jackson
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.
Climate questions, answered
How many hot months does Jackson have?
How cold does Jackson get in winter?
How hot does Jackson get in summer?
How much do temperatures drop at night in Jackson?
How much sun does Jackson get?
What is the average temperature in Jackson?
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.
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.
Jackson temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.