Climateby Month

Jackson, MS climate by month

NOAA 1991-2020 normals · 279 ft elevation

Jackson has hot and oppressively humid summers and cool winters. Highs peak at 92°F in August and fall to 57°F in January. Wet days are spread through the year, from about 7 to 11 a month. Normal snowfall is about 1.0 in a year. By our comfort score the best months are March and April.

Warmest month
92°F
August normal high
Coldest month
37°F
January normal low
Wet days a year
110
57.4 in of precipitation
Snow a year
1.0 in
normal snowfall

How warm is Jackson?

Normal highs range from 57°F in January to 92°F in August.

20°40°60°80°100° January: normal high 57°F (14°C), low 37°F (3°C) 57° 37° February: normal high 62°F (17°C), low 40°F (4°C) March: normal high 69°F (21°C), low 46°F (8°C) April: normal high 77°F (25°C), low 53°F (12°C) May: normal high 84°F (29°C), low 62°F (17°C) June: normal high 90°F (32°C), low 69°F (21°C) July: normal high 92°F (33°C), low 72°F (22°C) 92° 72° August: normal high 92°F (33°C), low 72°F (22°C) September: normal high 88°F (31°C), low 66°F (19°C) October: normal high 78°F (26°C), low 54°F (12°C) November: normal high 67°F (19°C), low 44°F (7°C) December: normal high 60°F (16°C), low 39°F (4°C) JFMAMJJASOND

Bars run from the normal low to the normal high for each month.

How rainy is Jackson?

July has the most wet days (about 11); the year brings about 57 in of precipitation.

January: 10 wet days February: 10 wet days March: 10 wet days April: 9 wet days May: 9 wet days June: 10 wet days July: 11 wet days 11 August: 11 wet days September: 7 wet days 7 October: 7 wet days November: 9 wet days December: 10 wet days JFMAMJJASOND

Wet day: at least 0.01 in of rain or melted snow, counted from daily records 1991-2020.

How much does it snow?

Normal snowfall is 1.0 in a year, most of it in December.

January: 0.2 in of snow February: 0.2 in of snow March: 0.1 in of snow April: 0.0 in of snow 0.0 May: 0.0 in of snow June: 0.0 in of snow July: 0.0 in of snow August: 0.0 in of snow September: 0.0 in of snow October: 0.0 in of snow November: 0.0 in of snow December: 0.5 in of snow 0.5 JFMAMJJASOND

How humid is Jackson?

Muggy days peak in July, at about 29 days.

January: 0 muggy days 0 February: 0 muggy days March: 0 muggy days April: 3 muggy days May: 14 muggy days June: 25 muggy days July: 29 muggy days 29 August: 28 muggy days September: 19 muggy days October: 6 muggy days November: 1 muggy days December: 0 muggy days JFMAMJJASOND

Muggy day: daily mean dew point of 65°F or higher, from hourly observations 1991-2020 at Jackson International Airport, 6.4 mi ENE of the city center.

How much daylight?

Daylight ranges from about 10.1 hours in December to 14.2 hours in June.

January: 10.3 hours of daylight February: 11.1 hours of daylight March: 12.0 hours of daylight April: 13.0 hours of daylight May: 13.8 hours of daylight June: 14.2 hours of daylight 14.2 July: 14.0 hours of daylight August: 13.3 hours of daylight September: 12.4 hours of daylight October: 11.4 hours of daylight November: 10.5 hours of daylight December: 10.1 hours of daylight 10.1 JFMAMJJASOND
See all numbers
Monthly climate normals and day counts for Jackson, 1991-2020
MonthHighLowPrecip.Wet daysSnowMuggy daysDaylight
January 57°F37°F 5.4 in10 0.2 in 0 10.3 h
February 62°F40°F 5.1 in10 0.2 in 0 11.1 h
March 69°F46°F 5.7 in10 0.1 in 0 12.0 h
April 77°F53°F 5.8 in9 0.0 in 3 13.0 h
May 84°F62°F 4.4 in9 0.0 in 14 13.8 h
June 90°F69°F 4.4 in10 0.0 in 25 14.2 h
July 92°F72°F 5.0 in11 0.0 in 29 14.0 h
August 92°F72°F 4.7 in11 0.0 in 28 13.3 h
September 88°F66°F 3.5 in7 0.0 in 19 12.4 h
October 78°F54°F 3.8 in7 0.0 in 6 11.4 h
November 67°F44°F 4.4 in9 0.0 in 1 10.5 h
December 60°F39°F 5.1 in10 0.5 in 0 10.1 h

High and low: NOAA 1991-2020 normal daily high and low. Wet days: at least 0.01 in of rain or melted snow. Muggy days: daily mean dew point 65°F or higher.

Best months to visit Jackson

By our comfort score, the best months are March and April.

Comfort score by month (0-100) and its parts, in days per month
MonthScoreComfortableNotable rainHot or cold
Jan 50773
Feb 591171
Mar 671670
Apr 681460
May 55465
Jun 410718
Jul 360824
Aug 360623
Sep 432513
Oct 601152
Nov 641560
Dec 53971

Score = 40 × share of comfortable days + 25 × share of days without notable rain + 20 × share of days neither hot (90°F+) nor cold (high 40°F or below) + 15 × daylight. How the score works.

Frost dates in Jackson

The last spring frost typically comes around Mar 14, and the first fall frost around Nov 14, leaving 245 frost-free days in a typical year.

Frost and freeze dates for Jackson
Typical date1 year in 10
Last spring frost (32°F)Mar 14after Apr 2
First fall frost (32°F)Nov 14before Oct 31
Last hard freeze (28°F)Feb 28after Mar 17
First hard freeze (28°F)Nov 28before Nov 7
Frost-free season245 daysunder 219 days

"Typical" is the date with a 50% chance of a later spring frost (or earlier fall frost). Planting after the "1 year in 10" spring date gives a 90% chance of no further frost. The Old Farmer's Almanac publishes 30% dates, which fall between our typical and 1-in-10 dates.

Station: Jackson Intl Airport (USW00003940), NOAA 1991-2020 freeze probabilities. Frost dates for every city in Mississippi.

Hottest and coldest readings, 1991-2020

The highest reading was 107°F (August 30, 2000); the lowest was 10°F (January 17, 2018).

From the temperature station's daily records with NOAA quality flags removed. Not an all-time record.

Near Jackson

Similar climates elsewhere

Where the numbers come from

  • Temperature, rain, snowfall, snow depth, frost dates and humidity and wind by hour: Jackson Intl Airport (USW00003940), 6.4 mi ENE of the city center, 296 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Jackson International Airport (722350-03940), 6.4 mi ENE of the city center, 296 ft . Hourly observations, 1991-2020.
  • Not available for this location: cloud cover (no station close enough or similar enough in elevation).

Distances from the city center (USGS). Methodology · Report an error