Stephenville climate — normals and trends

Q: What is the climate of Stephenville?

Stephenville has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.5 °C and it receives 760 mm of precipitation per year.

Q: What is the hottest day ever recorded in Stephenville?

The hottest day measured in Stephenville between 1940 and 2025 was 17 August 2023, reaching 42.5 °C.

Q: What is the coldest day in Stephenville?

The coldest day measured in Stephenville between 1940 and 2025 was 23 December 1989, at -19.3 °C.

Q: Does it snow in Stephenville?

Yes. Stephenville gets on average 5.3 cm of snow per year and has around 29 frost days.

Q: Has the climate of Stephenville warmed?

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

Q: What is the wettest day in Stephenville?

The wettest day measured in Stephenville between 1940 and 2025 was 26 April 1990, with 149 mm of rain in 24 hours.

Q: What was the windiest day in Stephenville?

The windiest day measured in Stephenville between 1940 and 2025 was 15 November 2006, with winds reaching 52.4 km/h.

Q: What is the warmest month in Stephenville?

The warmest month in Stephenville is July (28.9 °C on average); the coldest is January (7.1 °C).

Q: How much does it rain in Stephenville?

Stephenville receives on average 760 mm of precipitation per year, spread over about 83 rainy days.

Q: Is it sunny in Stephenville?

Stephenville gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.

Stephenville (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 18.5 °C and it receives 760 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 (28.9 °C on average) and the coldest is January (7.1 °C). Rainfall peaks in May.

Stephenville averages 29 frost days, 118 hot days (≥ 30 °C) and 83 rainy days per year.

Stephenville has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.

The hottest day of the period reached 42.5 °C (on 17 August 2023) and the coldest -19.3 °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

StephenvilleTexas

coords: 32.22°, -98.20°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJulyColdest monthJanuaryWettest monthMayDriest monthJanuary

Mean daily temperature

18.5°C

Average daily high

24.3°C

Average daily low

13.3°C

Annual rainfall

760mm

Sunshine / day

9.7h

Mean relative humidity

62%

Average peak wind

20.4km/h

Seasonal range

21.8°C

Frost days (< 0 °C)

29 d/yr

Hot days (≥ 30 °C)

118 d/yr

Rainy days (≥ 1 mm)

83 d/yr

Annual snowfall

5.3 cm

Average feels-like high

23.6 °C

Average feels-like low

11.6 °C

Average peak gust

39.6 km/h

Tropical nights (≥ 20 °C)

112 d/yr

Solar radiation

17.8 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.8 °C

since 1940

+0.2 °C per decade · r² = 0.38 · 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

42.5 °C

17 August 2023

Coldest day

-19.3 °C

23 December 1989

Wettest day

149 mm

26 April 1990

Windiest day

52.4 km/h

15 November 2006

Strongest gust

102.6 km/h

23 March 1987

Hottest feels-like

45.6 °C

20 June 2023

Coldest feels-like

-24.6 °C

23 December 1989

Snowiest day

13.3 cm

11 February 2010

Sunniest day

13.5 h

2 July 2024

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	39.6 °C31 July 2025	-11.5 °C19 February 2025	19.9 °C	709 mm	151	33
2024	41.4 °C20 August 2024	-11.7 °C15 January 2024	20.3 °C	870 mm	145	13
2023	42.5 °C17 August 2023	-4.7 °C31 January 2023	20.7 °C	644 mm	142	16
2022	42.2 °C19 July 2022	-12.5 °C23 December 2022	19.8 °C	642 mm	152	46
2021	38.6 °C27 July 2021	-16.3 °C15 February 2021	19.2 °C	751 mm	124	19
2020	41.3 °C28 August 2020	-4.3 °C6 February 2020	19.6 °C	766 mm	133	17
2019	40.1 °C13 August 2019	-6.4 °C5 March 2019	19.1 °C	669 mm	140	27
2018	42.3 °C22 July 2018	-12.7 °C17 January 2018	19.1 °C	941 mm	129	30
2017	39.0 °C23 June 2017	-10.9 °C7 January 2017	19.9 °C	780 mm	131	15
2016	38.1 °C18 September 2016	-9.3 °C18 December 2016	19.6 °C	864 mm	120	17
2015	40.9 °C9 August 2015	-7.6 °C8 January 2015	19.4 °C	1,032 mm	128	31
2014	39.4 °C7 August 2014	-10.2 °C29 January 2014	18.5 °C	463 mm	133	37
2013	41.3 °C28 June 2013	-7.8 °C7 December 2013	18.6 °C	704 mm	129	41
2012	41.1 °C26 June 2012	-6.8 °C26 December 2012	20.1 °C	736 mm	132	18
2011	42.0 °C28 August 2011	-11.7 °C3 February 2011	20.1 °C	582 mm	148	28
2010	39.9 °C23 August 2010	-12.0 °C9 January 2010	18.9 °C	782 mm	126	36
2009	40.1 °C9 July 2009	-7.9 °C28 January 2009	18.9 °C	786 mm	122	30
2008	40.2 °C28 July 2008	-5.1 °C2 January 2008	19.6 °C	447 mm	142	30
2007	37.4 °C14 August 2007	-7.6 °C16 February 2007	18.5 °C	1,058 mm	99	31
2006	39.2 °C17 July 2006	-5.9 °C19 February 2006	20.2 °C	648 mm	141	17
2005	39.1 °C28 September 2005	-10.4 °C8 December 2005	19.3 °C	539 mm	133	20
2004	37.7 °C16 July 2004	-7.5 °C23 December 2004	18.6 °C	955 mm	103	27
2003	40.4 °C6 August 2003	-7.9 °C25 February 2003	18.9 °C	502 mm	121	27
2002	36.7 °C26 August 2002	-7.9 °C3 March 2002	18.1 °C	868 mm	121	31
2001	38.3 °C22 July 2001	-4.6 °C20 January 2001	18.4 °C	867 mm	101	25
2000	42.4 °C4 September 2000	-6.2 °C12 December 2000	19.3 °C	856 mm	132	27
1999	39.4 °C10 August 1999	-7.8 °C4 January 1999	19.6 °C	671 mm	120	17
1998	40.9 °C12 July 1998	-7.3 °C22 December 1998	19.6 °C	693 mm	141	21
1997	37.3 °C22 August 1997	-8.2 °C29 January 1997	17.4 °C	970 mm	98	32
1996	38.7 °C7 July 1996	-12.7 °C4 February 1996	18.3 °C	887 mm	109	39
1995	39.9 °C28 July 1995	-7.9 °C10 December 1995	18.1 °C	889 mm	93	27
1994	40.9 °C27 June 1994	-7.2 °C19 January 1994	18.6 °C	831 mm	115	26
1993	39.2 °C2 June 1993	-6.1 °C26 November 1993	17.8 °C	835 mm	117	33
1992	35.9 °C14 July 1992	-7.7 °C16 January 1992	18.0 °C	916 mm	101	17
1991	37.8 °C19 July 1991	-5.4 °C4 November 1991	18.5 °C	1,103 mm	113	23
1990	38.5 °C31 August 1990	-14.0 °C23 December 1990	19.1 °C	1,129 mm	120	11
1989	40.0 °C18 July 1989	-19.3 °C23 December 1989	18.0 °C	1,048 mm	126	40
1988	39.4 °C8 August 1988	-8.3 °C8 January 1988	18.9 °C	496 mm	133	31
1987	39.0 °C17 August 1987	-5.1 °C16 December 1987	18.2 °C	881 mm	111	28
1986	40.4 °C30 July 1986	-6.0 °C11 February 1986	18.8 °C	967 mm	111	15
1985	39.3 °C1 September 1985	-17.6 °C2 February 1985	18.4 °C	741 mm	109	42
1984	38.4 °C19 August 1984	-12.0 °C19 January 1984	18.6 °C	809 mm	125	23
1983	39.2 °C31 August 1983	-15.2 °C22 December 1983	17.5 °C	774 mm	119	35
1982	38.2 °C6 August 1982	-13.7 °C11 January 1982	18.4 °C	868 mm	125	33
1981	39.4 °C21 July 1981	-11.2 °C11 February 1981	18.8 °C	1,020 mm	114	17
1980	42.4 °C28 June 1980	-10.2 °C2 March 1980	19.1 °C	603 mm	131	33
1979	38.8 °C28 September 1979	-12.4 °C2 January 1979	17.3 °C	952 mm	112	46
1978	41.3 °C15 July 1978	-9.8 °C20 January 1978	17.9 °C	566 mm	126	58
1977	39.4 °C25 September 1977	-10.1 °C9 January 1977	18.9 °C	670 mm	127	30
1976	37.5 °C10 August 1976	-12.4 °C8 January 1976	17.5 °C	779 mm	89	34
1975	36.7 °C9 June 1975	-7.7 °C13 January 1975	18.0 °C	593 mm	111	31
1974	39.7 °C23 July 1974	-8.5 °C4 January 1974	18.2 °C	796 mm	102	27
1973	37.4 °C23 August 1973	-12.1 °C12 January 1973	17.6 °C	1,010 mm	101	25
1972	40.0 °C25 June 1972	-10.4 °C5 January 1972	18.1 °C	561 mm	130	38
1971	38.7 °C6 July 1971	-10.4 °C8 February 1971	18.7 °C	643 mm	111	21
1970	38.7 °C9 August 1970	-8.6 °C7 January 1970	17.8 °C	593 mm	107	36
1969	41.2 °C13 August 1969	-6.6 °C1 January 1969	18.0 °C	777 mm	104	26
1968	37.3 °C10 August 1968	-9.2 °C7 January 1968	17.2 °C	915 mm	89	42
1967	39.3 °C31 July 1967	-6.9 °C9 January 1967	18.6 °C	579 mm	115	31
1966	37.9 °C1 August 1966	-11.5 °C30 January 1966	17.7 °C	679 mm	108	45
1965	38.1 °C14 September 1965	-8.8 °C24 February 1965	18.5 °C	733 mm	121	31
1964	40.2 °C11 August 1964	-11.1 °C14 January 1964	18.4 °C	606 mm	108	37
1963	38.4 °C24 July 1963	-13.1 °C12 January 1963	19.1 °C	409 mm	153	40
1962	40.3 °C11 August 1962	-12.4 °C11 January 1962	18.6 °C	541 mm	128	32
1961	37.7 °C4 August 1961	-7.9 °C29 January 1961	17.5 °C	874 mm	116	30
1960	40.0 °C15 June 1960	-8.9 °C25 February 1960	18.1 °C	597 mm	138	38
1959	38.6 °C30 August 1959	-13.8 °C4 January 1959	17.8 °C	716 mm	116	36
1958	37.6 °C31 July 1958	-8.1 °C15 December 1958	17.1 °C	824 mm	103	37
1957	40.6 °C30 July 1957	-7.8 °C17 January 1957	17.8 °C	1,231 mm	101	27
1956	39.9 °C30 August 1956	-11.7 °C19 January 1956	19.3 °C	435 mm	157	37
1955	39.5 °C9 August 1955	-7.2 °C11 February 1955	19.0 °C	509 mm	145	33
1954	40.6 °C26 July 1954	-9.1 °C21 January 1954	19.7 °C	510 mm	141	24
1953	40.8 °C27 September 1953	-9.3 °C24 December 1953	18.9 °C	710 mm	123	13
1952	40.1 °C6 August 1952	-5.2 °C15 December 1952	18.8 °C	604 mm	134	23
1951	39.5 °C17 August 1951	-13.9 °C1 February 1951	18.9 °C	482 mm	133	41
1950	37.1 °C5 August 1950	-11.3 °C6 December 1950	18.4 °C	606 mm	111	31
1949	38.5 °C14 August 1949	-11.7 °C31 January 1949	18.2 °C	705 mm	113	31
1948	39.0 °C20 August 1948	-11.0 °C11 March 1948	18.0 °C	604 mm	117	38
1947	39.5 °C10 August 1947	-12.1 °C4 January 1947	17.5 °C	659 mm	116	38
1946	38.9 °C29 July 1946	-9.6 °C16 January 1946	18.0 °C	1,073 mm	80	17
1945	38.8 °C18 August 1945	-5.4 °C19 December 1945	18.0 °C	893 mm	100	16
1944	40.6 °C2 August 1944	-8.6 °C14 January 1944	18.3 °C	874 mm	92	15
1943	39.9 °C3 August 1943	-7.7 °C19 January 1943	18.4 °C	607 mm	111	22
1942	36.8 °C10 August 1942	-7.5 °C8 January 1942	16.9 °C	876 mm	59	24
1941	34.6 °C18 August 1941	-2.7 °C7 February 1941	16.6 °C	1,083 mm	55	18
1940	37.3 °C3 August 1940	-12.2 °C19 January 1940	16.5 °C	925 mm	71	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

26.1 °C

+1.8 °C

Hot days (≥ 30 °C)

151 d/yr

+33

Frost days (< 0 °C)

33 d/yr

Annual rainfall

709 mm

-51 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	11.7 °C	-1.5 °C	57 mm	+14 mm
Feb	16.5 °C	+0.9 °C	23 mm	-28 mm
Mar	25.7 °C	+5.7 °C	29 mm	-41 mm
Apr	26.5 °C	+2.0 °C	134 mm	+40 mm
May	28.9 °C	+0.8 °C	109 mm	-6 mm
Jun	33.2 °C	+0.9 °C	71 mm	+4 mm
Jul	33.3 °C	-1.2 °C	102 mm	+59 mm
Aug	34.6 °C	+0.1 °C	43 mm	-2 mm
Sep	32.8 °C	+2.3 °C	9 mm	-51 mm
Oct	28.6 °C	+3.2 °C	44 mm	-32 mm
Nov	22.9 °C	+4.0 °C	87 mm	+34 mm
Dec	18.0 °C	+3.3 °C	2 mm	-41 mm

The year's extremes

Hottest day

39.6 °C

31 Jul 2025

Coldest day

-11.5 °C

19 Feb 2025

Wettest day

33.5 mm

24 Nov 2025

Windiest day

52.2 km/h

4 Mar 2025

Strongest gust

95.4 km/h

4 Mar 2025

Hottest feels-like

41.7 °C

31 Jul 2025

Coldest feels-like

-18.9 °C

19 Feb 2025

Snowiest day

6.4 cm

9 Jan 2025

Sunniest day

13.4 h

10 Jul 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 Stephenville?

Stephenville has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.5 °C and it receives 760 mm of precipitation per year.

What is the hottest day ever recorded in Stephenville?

The hottest day measured in Stephenville between 1940 and 2025 was 17 August 2023, reaching 42.5 °C.

What is the coldest day in Stephenville?

The coldest day measured in Stephenville between 1940 and 2025 was 23 December 1989, at -19.3 °C.

Does it snow in Stephenville?

Yes. Stephenville gets on average 5.3 cm of snow per year and has around 29 frost days.

Has the climate of Stephenville warmed?

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

What is the wettest day in Stephenville?

The wettest day measured in Stephenville between 1940 and 2025 was 26 April 1990, with 149 mm of rain in 24 hours.

What was the windiest day in Stephenville?

The windiest day measured in Stephenville between 1940 and 2025 was 15 November 2006, with winds reaching 52.4 km/h.

What is the warmest month in Stephenville?

The warmest month in Stephenville is July (28.9 °C on average); the coldest is January (7.1 °C).

How much does it rain in Stephenville?

Stephenville receives on average 760 mm of precipitation per year, spread over about 83 rainy days.

Is it sunny in Stephenville?

Stephenville gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.

What is the biggest single-day snowfall in Stephenville?

The heaviest 24-hour snowfall measured in Stephenville between 1940 and 2025 was 11 February 2010, with 13.3 cm.

Are there tropical nights in Stephenville?

Yes: Stephenville has on average 112 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Stephenville?

In Stephenville, between 1940 and 2025, the highest apparent temperature reached 45.6 °C on 20 June 2023, and the lowest was -24.6 °C on 23 December 1989.

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