Sulphur Springs climate — normals and trends

Q: What is the climate of Sulphur Springs?

Sulphur Springs has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 17.8 °C and it receives 1,078 mm of precipitation per year.

Q: What is the hottest day ever recorded in Sulphur Springs?

The hottest day measured in Sulphur Springs between 1940 and 2025 was 2 August 2011, reaching 42.6 °C.

Q: What is the coldest day in Sulphur Springs?

The coldest day measured in Sulphur Springs between 1940 and 2025 was 2 February 1951, at -19.5 °C.

Q: Does it snow in Sulphur Springs?

Yes. Sulphur Springs gets on average 5.8 cm of snow per year and has around 30 frost days.

Q: Has the climate of Sulphur Springs warmed?

Yes: Sulphur Springs warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Sulphur Springs?

The wettest day measured in Sulphur Springs between 1940 and 2025 was 20 September 1979, with 158 mm of rain in 24 hours.

Q: What was the windiest day in Sulphur Springs?

The windiest day measured in Sulphur Springs between 1940 and 2025 was 12 September 1961, with winds reaching 45.1 km/h.

Q: What is the warmest month in Sulphur Springs?

The warmest month in Sulphur Springs is July (28.1 °C on average); the coldest is January (6.5 °C).

Q: How much does it rain in Sulphur Springs?

Sulphur Springs receives on average 1,078 mm of precipitation per year, spread over about 101 rainy days.

Q: Is it sunny in Sulphur Springs?

Sulphur Springs gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.

Sulphur Springs (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 17.8 °C and it receives 1,078 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 (28.1 °C on average) and the coldest is January (6.5 °C). Rainfall peaks in May.

Sulphur Springs averages 30 frost days, 104 hot days (≥ 30 °C) and 101 rainy days per year.

Sulphur Springs has warmed by +1.8 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.

The number of frost days there went from about 34 to 26 per year over the period.

The hottest day of the period reached 42.6 °C (on 2 August 2011) and the coldest -19.5 °C (on 2 February 1951).

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

Sulphur SpringsTexas

coords: 33.14°, -95.60°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJulyColdest monthJanuaryWettest monthMayDriest monthAugust

Mean daily temperature

17.8°C

Average daily high

23.2°C

Average daily low

13.1°C

Annual rainfall

1,078mm

Sunshine / day

9.3h

Mean relative humidity

70%

Average peak wind

16.2km/h

Seasonal range

21.6°C

Frost days (< 0 °C)

30 d/yr

Hot days (≥ 30 °C)

104 d/yr

Rainy days (≥ 1 mm)

101 d/yr

Annual snowfall

5.8 cm

Average feels-like high

23.6 °C

Average feels-like low

12.1 °C

Average peak gust

34.6 km/h

Tropical nights (≥ 20 °C)

109 d/yr

Solar radiation

16.6 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.8 °C

since 1940

+0.2 °C per decade · r² = 0.42 · 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

42.6 °C

2 August 2011

Coldest day

-19.5 °C

2 February 1951

Wettest day

158 mm

20 September 1979

Windiest day

45.1 km/h

12 September 1961

Strongest gust

98.6 km/h

5 November 1994

Hottest feels-like

46.7 °C

3 August 2011

Coldest feels-like

-25.0 °C

2 February 1951

Snowiest day

17.1 cm

1 March 1942

Sunniest day

13.7 h

6 June 2024

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	38.8 °C19 August 2025	-10.6 °C20 February 2025	19.4 °C	1,045 mm	134	30
2024	38.4 °C18 August 2024	-11.8 °C16 January 2024	19.4 °C	1,469 mm	128	20
2023	42.2 °C18 August 2023	-2.5 °C27 November 2023	19.7 °C	1,120 mm	129	15
2022	40.7 °C9 July 2022	-13.2 °C23 December 2022	19.2 °C	1,014 mm	138	42
2021	37.8 °C1 September 2021	-18.2 °C16 February 2021	18.9 °C	1,256 mm	113	17
2020	37.8 °C16 August 2020	-3.7 °C27 February 2020	18.6 °C	1,471 mm	104	12
2019	38.1 °C13 August 2019	-6.3 °C5 March 2019	18.4 °C	1,269 mm	118	24
2018	40.4 °C21 July 2018	-13.0 °C17 January 2018	18.5 °C	1,382 mm	127	30
2017	36.6 °C28 July 2017	-11.1 °C7 January 2017	19.3 °C	1,223 mm	104	14
2016	38.4 °C12 August 2016	-9.3 °C19 December 2016	19.5 °C	1,101 mm	120	19
2015	39.2 °C10 August 2015	-8.7 °C8 January 2015	18.6 °C	1,656 mm	119	29
2014	37.3 °C27 July 2014	-10.7 °C6 January 2014	17.6 °C	893 mm	115	39
2013	38.2 °C1 September 2013	-5.5 °C10 December 2013	17.9 °C	1,155 mm	121	34
2012	40.8 °C21 July 2012	-4.8 °C11 December 2012	20.0 °C	871 mm	133	16
2011	42.6 °C2 August 2011	-9.3 °C2 February 2011	19.6 °C	878 mm	143	32
2010	39.3 °C23 August 2010	-10.9 °C9 January 2010	18.3 °C	889 mm	123	37
2009	38.7 °C13 July 2009	-5.3 °C5 December 2009	18.0 °C	1,368 mm	99	30
2008	41.4 °C3 August 2008	-5.8 °C3 January 2008	18.3 °C	1,141 mm	100	32
2007	38.7 °C13 August 2007	-7.8 °C16 February 2007	18.8 °C	1,209 mm	108	26
2006	40.3 °C18 July 2006	-6.9 °C8 December 2006	19.7 °C	854 mm	123	16
2005	38.1 °C22 September 2005	-9.9 °C9 December 2005	19.2 °C	622 mm	133	20
2004	36.0 °C15 July 2004	-7.4 °C25 December 2004	18.4 °C	1,272 mm	102	28
2003	38.6 °C6 August 2003	-7.1 °C24 January 2003	18.0 °C	743 mm	92	29
2002	35.7 °C24 August 2002	-8.4 °C3 March 2002	17.5 °C	1,181 mm	96	38
2001	37.6 °C22 July 2001	-7.3 °C2 January 2001	17.8 °C	1,319 mm	79	27
2000	41.0 °C4 September 2000	-7.7 °C30 January 2000	18.3 °C	1,178 mm	109	35
1999	39.1 °C26 August 1999	-8.0 °C4 January 1999	18.9 °C	889 mm	105	17
1998	40.0 °C2 August 1998	-5.8 °C25 December 1998	19.2 °C	1,196 mm	133	16
1997	36.7 °C28 July 1997	-7.1 °C29 January 1997	17.1 °C	1,176 mm	96	25
1996	38.2 °C7 July 1996	-17.0 °C4 February 1996	17.7 °C	1,088 mm	109	38
1995	39.6 °C28 July 1995	-7.8 °C10 December 1995	18.0 °C	1,015 mm	90	27
1994	36.8 °C25 June 1994	-7.2 °C9 February 1994	17.9 °C	1,229 mm	102	29
1993	38.6 °C21 August 1993	-5.7 °C14 March 1993	17.2 °C	1,159 mm	102	25
1992	34.7 °C24 June 1992	-8.8 °C16 January 1992	17.5 °C	1,325 mm	84	16
1991	37.7 °C2 July 1991	-5.4 °C1 January 1991	18.3 °C	1,296 mm	109	24
1990	39.2 °C30 August 1990	-10.6 °C23 December 1990	18.7 °C	1,442 mm	101	13
1989	36.7 °C1 September 1989	-18.4 °C23 December 1989	17.1 °C	1,201 mm	82	41
1988	39.6 °C8 August 1988	-8.6 °C12 February 1988	17.8 °C	988 mm	118	37
1987	38.5 °C14 August 1987	-4.5 °C2 January 1987	18.0 °C	1,095 mm	105	25
1986	38.5 °C31 July 1986	-6.2 °C12 February 1986	17.9 °C	1,229 mm	99	21
1985	39.8 °C1 September 1985	-12.7 °C3 February 1985	17.7 °C	1,029 mm	108	48
1984	39.0 °C29 August 1984	-11.7 °C19 January 1984	17.8 °C	1,239 mm	108	29
1983	37.0 °C30 August 1983	-17.2 °C25 December 1983	16.7 °C	1,003 mm	102	33
1982	37.6 °C12 September 1982	-15.7 °C11 January 1982	17.7 °C	1,189 mm	107	37
1981	36.8 °C15 August 1981	-11.6 °C11 February 1981	17.8 °C	1,186 mm	98	28
1980	39.4 °C18 July 1980	-9.7 °C17 February 1980	18.2 °C	939 mm	125	37
1979	34.4 °C29 June 1979	-11.6 °C2 January 1979	16.3 °C	1,382 mm	79	50
1978	38.4 °C15 July 1978	-11.3 °C19 February 1978	17.4 °C	791 mm	121	58
1977	37.8 °C25 July 1977	-11.1 °C10 January 1977	17.9 °C	822 mm	113	33
1976	36.3 °C1 August 1976	-11.3 °C8 January 1976	16.8 °C	1,085 mm	74	35
1975	36.5 °C3 September 1975	-8.4 °C13 January 1975	17.3 °C	1,011 mm	94	38
1974	39.1 °C22 July 1974	-7.4 °C1 January 1974	17.5 °C	1,202 mm	79	34
1973	35.9 °C21 August 1973	-12.7 °C12 January 1973	17.1 °C	1,618 mm	73	26
1972	36.5 °C20 June 1972	-7.9 °C5 January 1972	17.6 °C	806 mm	123	37
1971	37.4 °C14 July 1971	-8.3 °C8 February 1971	17.7 °C	908 mm	90	24
1970	39.3 °C8 August 1970	-8.5 °C9 January 1970	17.3 °C	915 mm	96	43
1969	38.4 °C15 July 1969	-6.2 °C5 January 1969	17.5 °C	935 mm	106	26
1968	36.7 °C10 August 1968	-9.1 °C7 January 1968	16.8 °C	1,120 mm	84	35
1967	37.4 °C7 August 1967	-7.6 °C19 January 1967	17.7 °C	864 mm	107	40
1966	37.7 °C15 July 1966	-16.8 °C30 January 1966	17.1 °C	841 mm	92	38
1965	37.7 °C20 August 1965	-8.8 °C17 January 1965	18.0 °C	892 mm	101	36
1964	39.6 °C11 August 1964	-13.1 °C14 January 1964	17.7 °C	870 mm	106	44
1963	38.5 °C26 August 1963	-14.3 °C24 January 1963	18.0 °C	497 mm	135	51
1962	37.7 °C12 August 1962	-17.2 °C11 January 1962	17.2 °C	905 mm	95	40
1961	35.2 °C3 August 1961	-8.1 °C29 January 1961	16.8 °C	988 mm	79	31
1960	37.2 °C27 July 1960	-11.3 °C26 February 1960	16.7 °C	1,072 mm	99	50
1959	34.5 °C1 August 1959	-13.0 °C4 January 1959	17.0 °C	1,107 mm	97	37
1958	37.4 °C13 August 1958	-9.2 °C13 February 1958	16.8 °C	903 mm	102	38
1957	37.3 °C29 July 1957	-8.2 °C17 January 1957	17.3 °C	1,591 mm	84	20
1956	39.4 °C16 August 1956	-7.4 °C19 January 1956	18.5 °C	651 mm	133	29
1955	36.5 °C23 August 1955	-8.2 °C16 December 1955	17.8 °C	916 mm	98	41
1954	39.5 °C24 July 1954	-10.1 °C22 January 1954	18.6 °C	988 mm	125	24
1953	38.0 °C11 August 1953	-8.3 °C23 December 1953	18.0 °C	948 mm	121	18
1952	36.7 °C17 August 1952	-5.0 °C15 December 1952	17.6 °C	1,131 mm	116	23
1951	39.9 °C17 August 1951	-19.5 °C2 February 1951	17.8 °C	827 mm	108	44
1950	35.7 °C25 August 1950	-10.6 °C7 December 1950	17.5 °C	932 mm	82	30
1949	36.9 °C10 July 1949	-11.4 °C31 January 1949	17.7 °C	999 mm	93	29
1948	38.4 °C20 August 1948	-9.4 °C28 January 1948	17.5 °C	722 mm	110	40
1947	39.6 °C9 August 1947	-11.4 °C4 January 1947	17.1 °C	918 mm	102	40
1946	37.5 °C10 August 1946	-5.1 °C30 December 1946	18.1 °C	1,601 mm	84	16
1945	35.7 °C4 August 1945	-6.1 °C16 December 1945	17.4 °C	1,252 mm	81	20
1944	38.9 °C27 July 1944	-6.2 °C9 January 1944	18.0 °C	1,250 mm	92	18
1943	39.9 °C28 August 1943	-6.3 °C19 January 1943	18.1 °C	695 mm	103	26
1942	36.3 °C10 August 1942	-7.0 °C8 January 1942	16.8 °C	1,069 mm	62	28
1941	35.8 °C18 August 1941	-3.2 °C19 January 1941	16.8 °C	988 mm	76	23
1940	33.5 °C3 August 1940	-12.7 °C19 January 1940	15.8 °C	1,216 mm	50	41

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

24.9 °C

+1.7 °C

Hot days (≥ 30 °C)

134 d/yr

+30

Frost days (< 0 °C)

30 d/yr

Annual rainfall

1045 mm

-33 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	10.3 °C	-1.4 °C	116 mm	+41 mm
Feb	14.7 °C	+0.6 °C	83 mm	-4 mm
Mar	22.5 °C	+4.0 °C	74 mm	-35 mm
Apr	24.6 °C	+1.4 °C	237 mm	+104 mm
May	27.1 °C	+0.1 °C	133 mm	-7 mm
Jun	31.6 °C	+0.5 °C	104 mm	+15 mm
Jul	33.9 °C	+0.6 °C	81 mm	+23 mm
Aug	33.5 °C	-0.2 °C	57 mm	+9 mm
Sep	32.2 °C	+2.1 °C	23 mm	-50 mm
Oct	28.1 °C	+3.3 °C	53 mm	-39 mm
Nov	22.5 °C	+4.4 °C	74 mm	-18 mm
Dec	16.8 °C	+3.4 °C	10 mm	-73 mm

The year's extremes

Hottest day

38.8 °C

19 Aug 2025

Coldest day

-10.6 °C

20 Feb 2025

Wettest day

70.8 mm

5 Apr 2025

Windiest day

35.8 km/h

4 Mar 2025

Strongest gust

79.9 km/h

4 Mar 2025

Hottest feels-like

44.3 °C

18 Aug 2025

Coldest feels-like

-16.0 °C

20 Feb 2025

Snowiest day

11.1 cm

9 Jan 2025

Sunniest day

13.6 h

31 May 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 Sulphur Springs?

Sulphur Springs has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 17.8 °C and it receives 1,078 mm of precipitation per year.

What is the hottest day ever recorded in Sulphur Springs?

The hottest day measured in Sulphur Springs between 1940 and 2025 was 2 August 2011, reaching 42.6 °C.

What is the coldest day in Sulphur Springs?

The coldest day measured in Sulphur Springs between 1940 and 2025 was 2 February 1951, at -19.5 °C.

Does it snow in Sulphur Springs?

Yes. Sulphur Springs gets on average 5.8 cm of snow per year and has around 30 frost days.

Has the climate of Sulphur Springs warmed?

Yes: Sulphur Springs warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Sulphur Springs?

The wettest day measured in Sulphur Springs between 1940 and 2025 was 20 September 1979, with 158 mm of rain in 24 hours.

What was the windiest day in Sulphur Springs?

The windiest day measured in Sulphur Springs between 1940 and 2025 was 12 September 1961, with winds reaching 45.1 km/h.

What is the warmest month in Sulphur Springs?

The warmest month in Sulphur Springs is July (28.1 °C on average); the coldest is January (6.5 °C).

How much does it rain in Sulphur Springs?

Sulphur Springs receives on average 1,078 mm of precipitation per year, spread over about 101 rainy days.

Is it sunny in Sulphur Springs?

Sulphur Springs gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.

What is the biggest single-day snowfall in Sulphur Springs?

The heaviest 24-hour snowfall measured in Sulphur Springs between 1940 and 2025 was 1 March 1942, with 17.1 cm.

Are there tropical nights in Sulphur Springs?

Yes: Sulphur Springs has on average 109 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Sulphur Springs?

In Sulphur Springs, between 1940 and 2025, the highest apparent temperature reached 46.7 °C on 3 August 2011, and the lowest was -25.0 °C on 2 February 1951.

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