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Lake Jackson, Texas climate

Cfa Humid subtropical

Lake Jackson has a seasonal warm-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 92°F, while the coldest is January averaging around 46°F at night. Around 50 inches of precipitation falls each year, peaking in September (7.1 inches) and easing off in February (2.4 inches).

☀️ Summers

Hot

Highs near 92°F in August.

About 81 days a year above 90 °F

❄️ Winters

Cool

Lows near 46°F in January.

About 3 freezing nights a year

🌧️ Rain

Wet

About 50 in of rain a year.

Wettest in September

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+1.0 °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

Lake Jackson climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	64	67	73	78	84	90	92	92	89	83	74	67
Avg temp (°F)	55	59	65	71	77	83	85	85	81	74	64	58
Avg low (°F)	46	50	56	63	71	76	78	78	73	65	55	49
Precipitation (in)	4.0	2.4	2.9	2.9	3.9	4.7	4.2	5.0	7.1	4.4	4.7	3.8

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	64	67	73	78	84	90
Avg temp (°F)	55	59	65	71	77	83
Avg low (°F)	46	50	56	63	71	76
Precipitation (in)	4.0	2.4	2.9	2.9	3.9	4.7

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	92	92	89	83	74	67
Avg temp (°F)	85	85	81	74	64	58
Avg low (°F)	78	78	73	65	55	49
Precipitation (in)	4.2	5.0	7.1	4.4	4.7	3.8

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	10	8	7	6	6	8	8	8	10	6	7	10
Days with high ≥ 90°F (days)	—	—	—	0.1	1	14	26	25	13	2	—	—
Days with low ≤ 32°F (days)	2	0.6	0.3	—	—	—	—	—	—	—	0.1	0.6

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	10	8	7	6	6	8
Days with high ≥ 90°F (days)	—	—	—	0.1	1	14
Days with low ≤ 32°F (days)	2	0.6	0.3	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	8	8	10	6	7	10
Days with high ≥ 90°F (days)	26	25	13	2	—	—
Days with low ≤ 32°F (days)	—	—	—	—	0.1	0.6

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	66	66	60	57	51	40	39	43	47	42	52	65
Clear days (≤ 30% cloud)	5	5	7	7	9	14	15	13	12	15	10	6
Partly cloudy days (30–70%)	10	8	11	12	12	9	10	11	10	9	10	9
Cloudy days (≥ 70%)	16	15	14	11	9	6	6	7	9	7	11	16
Relative humidity (%)	81	82	81	80	79	77	77	76	76	76	79	81
Wind speed (mph)	8.0	7.9	7.8	8.0	7.6	6.7	6.0	5.6	6.3	7.0	7.4	7.8

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	66	66	60	57	51	40
Clear days (≤ 30% cloud)	5	5	7	7	9	14
Partly cloudy days (30–70%)	10	8	11	12	12	9
Cloudy days (≥ 70%)	16	15	14	11	9	6
Relative humidity (%)	81	82	81	80	79	77
Wind speed (mph)	8.0	7.9	7.8	8.0	7.6	6.7

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	39	43	47	42	52	65
Clear days (≤ 30% cloud)	15	13	12	15	10	6
Partly cloudy days (30–70%)	10	11	10	9	10	9
Cloudy days (≥ 70%)	6	7	9	7	11	16
Relative humidity (%)	77	76	76	76	79	81
Wind speed (mph)	6.0	5.6	6.3	7.0	7.4	7.8

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Freeport 2 NW (NOAA GHCN station USC00413340), about 8 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 →