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Huntsville, Texas climate

Cfa Humid subtropical

Huntsville has a seasonal warm-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 96°F, while the coldest is January averaging around 42°F at night. Precipitation is fairly even year-round, totalling about 51 inches.

☀️ Summers

Very hot

Highs near 96°F in August.

About 101 days a year above 90 °F

❄️ Winters

Cool

Lows near 42°F in January.

About 16 freezing nights a year

🌧️ Rain

Wet

About 51 in of rain a year.

Wettest in May

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+2.0 °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

Huntsville climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	63	67	74	80	87	92	95	96	90	82	72	64
Avg temp (°F)	52	56	63	69	77	82	85	85	80	71	61	54
Avg low (°F)	42	46	52	59	67	73	74	74	70	60	51	44
Precipitation (in)	4.4	3.3	3.5	3.4	5.5	5.2	3.3	4.5	3.7	5.4	4.8	4.1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	63	67	74	80	87	92
Avg temp (°F)	52	56	63	69	77	82
Avg low (°F)	42	46	52	59	67	73
Precipitation (in)	4.4	3.3	3.5	3.4	5.5	5.2

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	95	96	90	82	72	64
Avg temp (°F)	85	85	80	71	61	54
Avg low (°F)	74	74	70	60	51	44
Precipitation (in)	3.3	4.5	3.7	5.4	4.8	4.1

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	8	8	6	6	6	7	7	7	7	6	7	9
Days with high ≥ 90°F (days)	—	0.0	0.1	0.7	7	21	25	27	17	4	0.1	—
Days with low ≤ 32°F (days)	6	3	0.9	—	—	—	—	—	—	0.1	1	5
Days with snowfall ≥ 1 in (days)	—	—	—	—	—	—	—	—	0.0	—	—	—

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	8	8	6	6	6	7
Days with high ≥ 90°F (days)	—	0.0	0.1	0.7	7	21
Days with low ≤ 32°F (days)	6	3	0.9	—	—	—
Days with snowfall ≥ 1 in (days)	—	—	—	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	7	7	7	6	7	9
Days with high ≥ 90°F (days)	25	27	17	4	0.1	—
Days with low ≤ 32°F (days)	—	—	—	0.1	1	5
Days with snowfall ≥ 1 in (days)	—	—	0.0	—	—	—

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	61	65	62	58	59	51	48	46	46	43	52	61
Clear days (≤ 30% cloud)	7	6	7	7	7	8	10	10	11	13	9	7
Partly cloudy days (30–70%)	9	7	9	10	11	13	14	14	11	10	11	9
Cloudy days (≥ 70%)	15	15	15	13	14	9	7	7	8	8	11	15
Relative humidity (%)	82	82	80	77	75	73	72	69	72	74	79	82
Wind speed (mph)	2.1	2.2	2.3	2.3	2.1	1.9	1.8	1.7	1.7	1.9	2.1	2.1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	61	65	62	58	59	51
Clear days (≤ 30% cloud)	7	6	7	7	7	8
Partly cloudy days (30–70%)	9	7	9	10	11	13
Cloudy days (≥ 70%)	15	15	15	13	14	9
Relative humidity (%)	82	82	80	77	75	73
Wind speed (mph)	2.1	2.2	2.3	2.3	2.1	1.9

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	48	46	46	43	52	61
Clear days (≤ 30% cloud)	10	10	11	13	9	7
Partly cloudy days (30–70%)	14	14	11	10	11	9
Cloudy days (≥ 70%)	7	7	8	8	11	15
Relative humidity (%)	72	69	72	74	79	82
Wind speed (mph)	1.8	1.7	1.7	1.9	2.1	2.1

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Conroe (NOAA GHCN station USC00411956), about 44 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 →