Lake Jackson climate — normals and trends

Q: What is the climate of Lake Jackson?

Lake Jackson has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 21.2 °C and it receives 1,058 mm of precipitation per year.

Q: What is the hottest day ever recorded in Lake Jackson?

The hottest day measured in Lake Jackson between 1940 and 2025 was 27 August 2023, reaching 41.2 °C.

Q: What is the coldest day in Lake Jackson?

The coldest day measured in Lake Jackson between 1940 and 2025 was 23 December 1989, at -11.8 °C.

Q: Does it snow in Lake Jackson?

Almost never: Lake Jackson sees virtually no snow, with about 4 frost days per year.

Q: Has the climate of Lake Jackson warmed?

Yes: Lake Jackson warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Lake Jackson?

The wettest day measured in Lake Jackson between 1940 and 2025 was 11 September 1961, with 280 mm of rain in 24 hours.

Q: What was the windiest day in Lake Jackson?

The windiest day measured in Lake Jackson between 1940 and 2025 was 11 September 1961, with winds reaching 89.0 km/h.

Q: What is the warmest month in Lake Jackson?

The warmest month in Lake Jackson is July (28.2 °C on average); the coldest is January (12.6 °C).

Q: How much does it rain in Lake Jackson?

Lake Jackson receives on average 1,058 mm of precipitation per year, spread over about 130 rainy days.

Q: Is it sunny in Lake Jackson?

Lake Jackson gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.

Lake Jackson (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 21.2 °C and it receives 1,058 mm of precipitation per year.

These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.

The warmest month is July (28.2 °C on average) and the coldest is January (12.6 °C). Rainfall peaks in September.

Lake Jackson averages 4 frost days, 109 hot days (≥ 30 °C) and 130 rainy days per year.

Lake Jackson has warmed by +1.4 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.

The hottest day of the period reached 41.2 °C (on 27 August 2023) and the coldest -11.8 °C (on 23 December 1989).

Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.

Climate normals · ERA5

Lake JacksonTexas

coords: 29.03°, -95.43°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJulyColdest monthJanuaryWettest monthSeptemberDriest monthFebruary

Mean daily temperature

21.2°C

Average daily high

25.4°C

Average daily low

17.5°C

Annual rainfall

1,058mm

Sunshine / day

9.8h

Mean relative humidity

77%

Average peak wind

19.0km/h

Seasonal range

15.6°C

Frost days (< 0 °C)

4 d/yr

Hot days (≥ 30 °C)

109 d/yr

Rainy days (≥ 1 mm)

130 d/yr

Annual snowfall

0.6 cm

Average feels-like high

27.1 °C

Average feels-like low

18.0 °C

Average peak gust

37.7 km/h

Tropical nights (≥ 20 °C)

171 d/yr

Solar radiation

17.1 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.4 °C

since 1940

+0.2 °C per decade · r² = 0.39 · p = < 0.001

19402025

Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).

A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.

Records for the period

Hottest day

41.2 °C

27 August 2023

Coldest day

-11.8 °C

23 December 1989

Wettest day

280 mm

11 September 1961

Windiest day

89.0 km/h

11 September 1961

Strongest gust

164.2 km/h

11 September 1961

Hottest feels-like

45.1 °C

9 August 1962

Coldest feels-like

-19.0 °C

23 December 1989

Snowiest day

11.5 cm

30 January 1949

Sunniest day

13.2 h

7 June 2024

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	36.1 °C24 July 2025	-8.1 °C22 January 2025	22.4 °C	1,158 mm	138	4
2024	36.6 °C20 August 2024	-5.5 °C16 January 2024	22.8 °C	1,422 mm	133	3
2023	41.2 °C27 August 2023	2.3 °C11 December 2023	22.9 °C	891 mm	135	0
2022	36.5 °C10 July 2022	-7.6 °C23 December 2022	21.7 °C	994 mm	138	9
2021	34.5 °C13 June 2021	-9.2 °C16 February 2021	22.0 °C	1,446 mm	110	5
2020	37.3 °C16 August 2020	0.7 °C1 December 2020	22.6 °C	1,050 mm	128	0
2019	36.3 °C14 August 2019	0.0 °C5 March 2019	22.0 °C	1,068 mm	140	0
2018	36.2 °C23 July 2018	-5.7 °C17 January 2018	21.8 °C	1,555 mm	131	5
2017	35.4 °C29 July 2017	-4.6 °C7 January 2017	22.7 °C	1,241 mm	128	3
2016	34.6 °C1 September 2016	0.6 °C19 December 2016	22.3 °C	1,354 mm	118	0
2015	36.1 °C12 August 2015	0.6 °C8 January 2015	21.7 °C	1,419 mm	115	0
2014	34.8 °C25 August 2014	-3.2 °C7 January 2014	21.1 °C	954 mm	107	6
2013	40.5 °C29 June 2013	0.2 °C17 January 2013	21.3 °C	953 mm	122	0
2012	37.9 °C26 June 2012	1.1 °C26 December 2012	22.4 °C	1,158 mm	110	0
2011	38.8 °C27 August 2011	-4.9 °C2 February 2011	22.3 °C	412 mm	146	10
2010	36.5 °C23 August 2010	-5.8 °C9 January 2010	21.0 °C	883 mm	122	5
2009	36.5 °C12 August 2009	-1.3 °C5 December 2009	21.7 °C	1,263 mm	121	1
2008	35.8 °C2 September 2008	1.0 °C3 January 2008	21.7 °C	934 mm	116	0
2007	36.7 °C12 August 2007	-2.1 °C16 February 2007	21.4 °C	1,150 mm	104	1
2006	36.1 °C13 June 2006	-0.1 °C12 February 2006	21.9 °C	1,163 mm	114	1
2005	37.4 °C24 September 2005	1.9 °C8 December 2005	21.7 °C	818 mm	131	0
2004	35.1 °C5 August 2004	-1.8 °C26 December 2004	21.6 °C	1,260 mm	118	2
2003	36.2 °C7 August 2003	-0.4 °C17 January 2003	21.1 °C	984 mm	110	2
2002	35.0 °C2 August 2002	-3.2 °C4 March 2002	21.3 °C	1,172 mm	114	5
2001	34.9 °C5 August 2001	-1.4 °C3 January 2001	21.2 °C	1,090 mm	99	3
2000	40.8 °C4 September 2000	0.9 °C5 January 2000	21.8 °C	956 mm	122	0
1999	37.4 °C14 August 1999	0.0 °C4 January 1999	21.9 °C	737 mm	112	0
1998	37.2 °C2 August 1998	0.0 °C26 December 1998	21.9 °C	1,162 mm	123	0
1997	36.5 °C5 July 1997	-0.6 °C13 January 1997	20.6 °C	1,352 mm	101	3
1996	34.7 °C23 July 1996	-3.9 °C19 December 1996	21.0 °C	860 mm	112	10
1995	36.6 °C28 July 1995	0.7 °C10 December 1995	21.5 °C	1,389 mm	119	0
1994	34.0 °C22 July 1994	-1.3 °C2 February 1994	21.6 °C	1,032 mm	112	2
1993	35.0 °C18 August 1993	-0.1 °C27 November 1993	20.9 °C	1,188 mm	108	1
1992	35.7 °C20 June 1992	-0.2 °C16 January 1992	21.1 °C	1,406 mm	104	1
1991	34.5 °C30 July 1991	1.6 °C9 November 1991	21.3 °C	1,268 mm	103	0
1990	37.1 °C27 August 1990	-4.8 °C24 December 1990	21.8 °C	893 mm	129	2
1989	34.2 °C3 September 1989	-11.8 °C23 December 1989	20.7 °C	1,192 mm	106	12
1988	35.7 °C8 August 1988	-2.5 °C12 February 1988	20.9 °C	811 mm	104	3
1987	35.4 °C28 August 1987	1.0 °C31 March 1987	21.0 °C	939 mm	114	0
1986	36.0 °C29 July 1986	1.3 °C12 February 1986	21.4 °C	1,116 mm	102	0
1985	36.1 °C1 September 1985	-6.2 °C21 January 1985	21.0 °C	1,137 mm	109	6
1984	36.8 °C3 May 1984	-2.5 °C19 January 1984	21.1 °C	941 mm	95	3
1983	34.0 °C31 August 1983	-9.3 °C25 December 1983	20.0 °C	1,378 mm	71	8
1982	35.0 °C12 July 1982	-6.4 °C11 January 1982	21.2 °C	913 mm	125	5
1981	33.8 °C24 July 1981	-4.5 °C11 February 1981	21.1 °C	1,132 mm	110	2
1980	36.7 °C17 July 1980	-4.1 °C2 March 1980	20.8 °C	939 mm	118	2
1979	33.6 °C30 June 1979	-7.3 °C2 January 1979	20.1 °C	1,346 mm	80	12
1978	35.3 °C15 July 1978	-2.8 °C10 December 1978	20.4 °C	843 mm	121	9
1977	35.7 °C7 June 1977	-6.1 °C10 January 1977	20.9 °C	1,067 mm	117	7
1976	35.4 °C2 August 1976	-5.3 °C8 January 1976	20.0 °C	949 mm	106	9
1975	34.7 °C9 July 1975	-4.6 °C13 January 1975	21.1 °C	853 mm	92	5
1974	34.8 °C28 July 1974	-0.3 °C1 December 1974	21.0 °C	1,017 mm	94	2
1973	34.7 °C27 May 1973	-4.6 °C12 January 1973	20.7 °C	1,285 mm	90	9
1972	35.1 °C20 June 1972	-2.9 °C5 January 1972	21.1 °C	955 mm	113	7
1971	35.3 °C20 July 1971	-1.8 °C8 February 1971	21.4 °C	892 mm	105	4
1970	37.0 °C11 August 1970	-5.2 °C7 January 1970	20.4 °C	965 mm	97	7
1969	36.2 °C15 July 1969	-1.4 °C5 January 1969	20.9 °C	769 mm	120	1
1968	33.7 °C12 June 1968	-1.0 °C24 February 1968	20.3 °C	991 mm	91	4
1967	34.9 °C10 July 1967	-1.7 °C4 January 1967	21.1 °C	919 mm	82	2
1966	33.7 °C30 July 1966	-5.1 °C30 January 1966	20.3 °C	1,043 mm	95	11
1965	35.6 °C10 September 1965	-3.0 °C17 January 1965	21.2 °C	882 mm	109	4
1964	36.5 °C5 August 1964	-4.4 °C14 January 1964	20.7 °C	773 mm	103	4
1963	35.7 °C14 August 1963	-7.1 °C24 January 1963	21.0 °C	600 mm	131	14
1962	39.5 °C9 August 1962	-7.3 °C12 January 1962	21.1 °C	570 mm	121	7
1961	34.2 °C6 September 1961	-1.2 °C29 January 1961	20.5 °C	1,276 mm	95	3
1960	35.4 °C29 July 1960	-3.7 °C25 February 1960	20.4 °C	1,022 mm	107	7
1959	33.5 °C8 August 1959	-4.3 °C4 January 1959	20.3 °C	1,094 mm	106	4
1958	35.6 °C3 August 1958	-3.2 °C13 February 1958	20.4 °C	1,058 mm	112	3
1957	35.7 °C29 July 1957	-2.9 °C17 January 1957	21.5 °C	1,102 mm	102	3
1956	36.0 °C20 September 1956	-0.7 °C19 January 1956	21.3 °C	712 mm	124	1
1955	34.9 °C25 August 1955	-1.6 °C11 February 1955	21.5 °C	833 mm	130	2
1954	37.5 °C30 August 1954	-3.8 °C22 January 1954	21.6 °C	551 mm	130	3
1953	36.1 °C9 August 1953	-2.4 °C24 December 1953	21.3 °C	1,245 mm	119	3
1952	34.9 °C23 August 1952	-1.4 °C15 December 1952	20.9 °C	858 mm	105	1
1951	36.4 °C5 August 1951	-9.4 °C2 February 1951	21.3 °C	797 mm	116	10
1950	34.3 °C18 August 1950	-5.8 °C7 December 1950	21.7 °C	675 mm	109	3
1949	34.8 °C1 July 1949	-10.7 °C31 January 1949	21.2 °C	1,355 mm	95	3
1948	36.2 °C31 July 1948	-3.2 °C24 January 1948	21.0 °C	774 mm	103	9
1947	33.9 °C21 September 1947	-2.7 °C4 January 1947	20.0 °C	1,472 mm	67	3
1946	33.8 °C12 July 1946	1.9 °C17 January 1946	21.0 °C	1,743 mm	56	0
1945	35.4 °C4 August 1945	1.2 °C20 December 1945	21.8 °C	939 mm	93	0
1944	35.1 °C22 September 1944	-1.8 °C15 January 1944	21.3 °C	1,233 mm	84	1
1943	38.2 °C25 July 1943	-1.1 °C3 March 1943	20.8 °C	1,227 mm	87	3
1942	34.1 °C11 August 1942	-0.5 °C11 January 1942	20.6 °C	986 mm	75	2
1941	33.8 °C19 August 1941	1.2 °C19 January 1941	20.1 °C	1,478 mm	61	0
1940	33.1 °C8 September 1940	-5.7 °C19 January 1940	19.7 °C	1,304 mm	50	9

Normals computed over complete calendar years 1940–2025.

A specific year

Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?

Year

Across the whole year

Average daily high

26.8 °C

+1.4 °C

Hot days (≥ 30 °C)

138 d/yr

+29

Frost days (< 0 °C)

4 d/yr

Annual rainfall

1158 mm

+100 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	15.0 °C	-2.1 °C	127 mm	+40 mm
Feb	20.3 °C	+1.6 °C	43 mm	-28 mm
Mar	25.2 °C	+3.4 °C	75 mm	+4 mm
Apr	27.0 °C	+1.8 °C	56 mm	-27 mm
May	29.9 °C	+1.4 °C	124 mm	+30 mm
Jun	31.7 °C	+0.6 °C	185 mm	+91 mm
Jul	33.3 °C	+1.2 °C	61 mm	-26 mm
Aug	32.2 °C	0.0 °C	209 mm	+115 mm
Sep	30.8 °C	+0.5 °C	110 mm	-7 mm
Oct	29.2 °C	+2.2 °C	48 mm	-35 mm
Nov	25.6 °C	+3.5 °C	49 mm	-45 mm
Dec	20.6 °C	+1.9 °C	71 mm	-13 mm

The year's extremes

Hottest day

36.1 °C

24 Jul 2025

Coldest day

-8.1 °C

22 Jan 2025

Wettest day

73.3 mm

12 Jun 2025

Windiest day

36.3 km/h

2 Apr 2025

Strongest gust

78.5 km/h

9 Jan 2025

Hottest feels-like

42.2 °C

24 Jul 2025

Coldest feels-like

-12.2 °C

22 Jan 2025

Snowiest day

5.5 cm

21 Jan 2025

Sunniest day

13.1 h

21 Jun 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Lake Jackson?

Lake Jackson has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 21.2 °C and it receives 1,058 mm of precipitation per year.

What is the hottest day ever recorded in Lake Jackson?

The hottest day measured in Lake Jackson between 1940 and 2025 was 27 August 2023, reaching 41.2 °C.

What is the coldest day in Lake Jackson?

The coldest day measured in Lake Jackson between 1940 and 2025 was 23 December 1989, at -11.8 °C.

Does it snow in Lake Jackson?

Almost never: Lake Jackson sees virtually no snow, with about 4 frost days per year.

Has the climate of Lake Jackson warmed?

Yes: Lake Jackson warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Lake Jackson?

The wettest day measured in Lake Jackson between 1940 and 2025 was 11 September 1961, with 280 mm of rain in 24 hours.

What was the windiest day in Lake Jackson?

The windiest day measured in Lake Jackson between 1940 and 2025 was 11 September 1961, with winds reaching 89.0 km/h.

What is the warmest month in Lake Jackson?

The warmest month in Lake Jackson is July (28.2 °C on average); the coldest is January (12.6 °C).

How much does it rain in Lake Jackson?

Lake Jackson receives on average 1,058 mm of precipitation per year, spread over about 130 rainy days.

Is it sunny in Lake Jackson?

Lake Jackson gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.

What is the biggest single-day snowfall in Lake Jackson?

The heaviest 24-hour snowfall measured in Lake Jackson between 1940 and 2025 was 30 January 1949, with 11.5 cm.

Are there tropical nights in Lake Jackson?

Yes: Lake Jackson has on average 171 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Lake Jackson?

In Lake Jackson, between 1940 and 2025, the highest apparent temperature reached 45.1 °C on 9 August 1962, and the lowest was -19.0 °C on 23 December 1989.

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