Climate · Jackson

Jackson, SC climate

Jackson has mild winters and hot summers. A typical July afternoon reaches 93°, a January night drops to 36°, and snow is almost unheard of.

NOAA 1991-2020 climate normals Updated once a decade
July high
93°
4th hottest of 475 South Carolina towns
January low
36°
101st mildest of 475 South Carolina towns
Rain + melted snow
46 in
98th driest of 475 South Carolina towns
Snow a winter
0.8 in
170th snowiest of 452 South Carolina towns
A normal year

What a year in Jackson feels like

Winter

60° / 37°
Typical high / low · Snow is rare

Spring

77° / 52°
Typical high / low · Last frost around Mar 23

Summer

91° / 70°
Typical high / low · 86 days reach 90° in a normal year

Fall

77° / 54°
Typical high / low · First frost around Nov 9
Best months to be outsideMarAprOctNovHighs of 62–84° and lows of 40° or more
Month by month

Jackson weather by month

Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January58°36°4.1" 0.4"100 40° – 54°
February62°39°3.7" 0.3"90 42° – 60°
March70°45°4.1" 090 51° – 65°
April77°51°3.0" 080 60° – 69°
May85°60°3.3" 080 68° – 78°
June90°68°4.8" 0110 75° – 83°
July93°71°4.8" 0110 79° – 86°
August91°71°4.8" 0110 78° – 85°
September86°65°3.8" 080 73° – 82°
October78°53°2.7" 060 62° – 71°
November68°43°2.8" 070 50° – 62°
December60°37°4.0" 0.1"90 40° – 60°
Year77°53°45.9"0.8"1070

“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.

Rain & snow

Rain and snow in Jackson

Jackson gets 46 inches of rain and melted snow a year. June is the wettest month and October the driest. Rain or snow falls on about 107 days a year.

46 in
Rain + melted snow a year
More rain than 73% of U.S. towns
0.8 in
Snow in a normal winter
Less snow than 87% of U.S. towns
0 days
With 1"+ of snow on the ground
Fewer than 82% of U.S. towns

Rain + melted snow by month

Inches of water
4.8"

Snowfall by month

About 0.8" in a normal year, so most winters see none.
Frost & the growing season

About 232 frost-free days a year

In half of years the last 32° night comes by March 23 and the first one by November 9. That leaves about 232 frost-free days for gardens, longer than 86% of U.S. towns.

51
nights at or below 32° in a normal year
0
nights below 0° in a normal year
86
days that reach 90° in a normal year

Freezing nights by month

Average nights at or below 32°

90° days by month

Average days at 90° or more
Heating & cooling

Heating and cooling a home in Jackson

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Jackson, 48% of that work is heating and 52% is cooling.

48%heating
2,182 heating degree daysLess heating than 92% of U.S. towns
2,361 cooling degree daysMore cooling than 92% of U.S. towns

Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.

Compared with other towns

How Jackson compares

Summer heat93° July high
Hotter than 92% of U.S. towns4th hottest of 475 South Carolina towns
Winter cold36° January low
Milder than 89% of U.S. towns101st mildest of 475 South Carolina towns
Precipitation46" a year
Wetter than 73% of U.S. towns98th driest of 475 South Carolina towns
Snow0.8" a winter
Less snow than 87% of U.S. towns170th snowiest of 452 South Carolina towns
Growing season232 frost-free days
Longer than 86% of U.S. towns209th longest of 475 South Carolina towns
South Carolina climate rankingsSnowiest, mildest, wettest and more in SC →

Compared with every U.S. town and city on TownTapestry, each counted once.

Then and now

Warmer than it used to be

+1.1°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Jackson averaged 1.1° warmer than the 1900s. The biggest change is in February (+1.9°). The shift is smaller than in 61% of U.S. towns.

❄️ Winter+1.5° now 49°, was 47°
🌷 Spring+1.0° now 65°, was 64°
☀️ Summer+1.1° now 81°, was 80°
🍂 Fall+0.8° now 65°, was 65°

Change by month1991–2020 average minus 1901–2000 average, at Jackson’s spot on NOAA’s grid

Year to year

How much a month can swing

A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 40° to 60°. July is the most reliable, staying within 6°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Jackson’s climate

What is the coldest month in Jackson?

January, with a typical high of 58° and a low of 36°.

What is the hottest month in Jackson?

July, with a typical high of 93° and a low of 71°. About 86 days a year reach 90°.

How much snow does Jackson get?

Almost none. A normal year brings 0.8 inches.

When is the first frost in Jackson?

In half of years the first 32° night comes by November 9, and the last spring frost by March 23.

What is the rainiest month in Jackson?

June, with 4.8 inches of rain and melted snow. The year totals 46 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Jackson itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Augusta Bush Fld Airport, GA (10 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.

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