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Jackson, Tennessee climate

Cfa Humid subtropical

Jackson has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 91°F, while the coldest is January averaging around 27°F at night. Precipitation is fairly even year-round, totalling about 57 inches. Snow is occasional (3 inches of snow per year on average).

☀️ Summers

Hot

Highs near 91°F in July.

About 55 days a year above 90 °F

❄️ Winters

Cold

Lows near 27°F in January.

About 71 freezing nights a year

🌧️ Rain

Wet

About 57 in of rain a year.

Wettest in March

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+0.5 °F vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Jackson climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	49	53	62	73	80	88	91	90	85	74	61	52
Avg temp (°F)	38	42	51	60	69	77	80	79	72	61	49	41
Avg low (°F)	27	30	39	48	58	66	69	67	60	48	37	31
Precipitation (in)	4.3	4.7	5.8	5.5	5.3	5.1	5.0	3.6	4.1	4.0	4.5	5.3
Snowfall (in)	1.1	0.9	0.4	0.1	—	—	—	—	—	—	—	0.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	49	53	62	73	80	88
Avg temp (°F)	38	42	51	60	69	77
Avg low (°F)	27	30	39	48	58	66
Precipitation (in)	4.3	4.7	5.8	5.5	5.3	5.1
Snowfall (in)	1.1	0.9	0.4	0.1	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	91	90	85	74	61	52
Avg temp (°F)	80	79	72	61	49	41
Avg low (°F)	69	67	60	48	37	31
Precipitation (in)	5.0	3.6	4.1	4.0	4.5	5.3
Snowfall (in)	—	—	—	—	—	0.2

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	11	10	12	11	11	10	10	8	8	9	10	12
Days with high ≥ 90°F (days)	—	—	—	0.1	2	11	19	16	8	0.6	—	—
Days with low ≤ 32°F (days)	20	15	8	1	—	—	—	—	—	1	9	17
Days with snowfall ≥ 1 in (days)	0.4	0.5	0.1	0.0	—	—	—	—	—	—	0.0	0.1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	11	10	12	11	11	10
Days with high ≥ 90°F (days)	—	—	—	0.1	2	11
Days with low ≤ 32°F (days)	20	15	8	1	—	—
Days with snowfall ≥ 1 in (days)	0.4	0.5	0.1	0.0	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	10	8	8	9	10	12
Days with high ≥ 90°F (days)	19	16	8	0.6	—	—
Days with low ≤ 32°F (days)	—	—	—	1	9	17
Days with snowfall ≥ 1 in (days)	—	—	—	—	0.0	0.1

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	64	68	63	59	59	52	51	48	45	47	54	63
Clear days (≤ 30% cloud)	6	5	6	8	7	9	9	10	13	13	9	7
Partly cloudy days (30–70%)	9	8	9	9	10	10	13	12	9	8	9	8
Cloudy days (≥ 70%)	16	16	16	14	14	11	10	8	9	10	12	16
Relative humidity (%)	85	84	82	80	80	78	73	68	67	70	77	84
Wind speed (mph)	4.5	4.8	4.7	4.4	3.5	2.9	2.7	2.7	3.1	3.4	3.7	3.9

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	64	68	63	59	59	52
Clear days (≤ 30% cloud)	6	5	6	8	7	9
Partly cloudy days (30–70%)	9	8	9	9	10	10
Cloudy days (≥ 70%)	16	16	16	14	14	11
Relative humidity (%)	85	84	82	80	80	78
Wind speed (mph)	4.5	4.8	4.7	4.4	3.5	2.9

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	51	48	45	47	54	63
Clear days (≤ 30% cloud)	9	10	13	13	9	7
Partly cloudy days (30–70%)	13	12	9	8	9	8
Cloudy days (≥ 70%)	10	8	9	10	12	16
Relative humidity (%)	73	68	67	70	77	84
Wind speed (mph)	2.7	2.7	3.1	3.4	3.7	3.9

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Jackson Exp Stn (NOAA GHCN station USC00404561), about 3 km from the city centre.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →