Dallas climate — normals and trends

Q: What is the climate of Dallas?

Dallas has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 11.0 °C and it receives 1,254 mm of precipitation per year.

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

The hottest day measured in Dallas between 1940 and 2025 was 27 June 2021, reaching 43.8 °C.

Q: What is the coldest day in Dallas?

The coldest day measured in Dallas between 1940 and 2025 was 31 January 1950, at -23.3 °C.

Q: Does it snow in Dallas?

Yes. Dallas gets on average 27.3 cm of snow per year and has around 42 frost days.

Q: Has the climate of Dallas warmed?

Yes: Dallas warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Dallas?

The wettest day measured in Dallas between 1940 and 2025 was 24 November 1960, with 96 mm of rain in 24 hours.

Q: What was the windiest day in Dallas?

The windiest day measured in Dallas between 1940 and 2025 was 14 November 1981, with winds reaching 47.2 km/h.

Q: What is the warmest month in Dallas?

The warmest month in Dallas is July (18.9 °C on average); the coldest is January (4.1 °C).

Q: How much does it rain in Dallas?

Dallas receives on average 1,254 mm of precipitation per year, spread over about 137 rainy days.

Q: Is it sunny in Dallas?

Dallas gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.

Dallas (United States) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 11.0 °C and it receives 1,254 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 (18.9 °C on average) and the coldest is January (4.1 °C). Rainfall peaks in December.

Dallas averages 42 frost days, 21 hot days (≥ 30 °C) and 137 rainy days per year.

Dallas has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.

The number of frost days there went from about 51 to 33 per year over the period.

The hottest day of the period reached 43.8 °C (on 27 June 2021) and the coldest -23.3 °C (on 31 January 1950).

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

DallasOregon

coords: 44.92°, -123.32°
period: 1940–2025 · 86 yrs

CsbWarm-summer MediterraneanWarmest monthJulyColdest monthJanuaryWettest monthDecemberDriest monthJuly

Mean daily temperature

11.0°C

Average daily high

16.3°C

Average daily low

6.3°C

Annual rainfall

1,254mm

Sunshine / day

8.8h

Mean relative humidity

76%

Average peak wind

12.8km/h

Seasonal range

14.8°C

Frost days (< 0 °C)

42 d/yr

Hot days (≥ 30 °C)

21 d/yr

Rainy days (≥ 1 mm)

137 d/yr

Annual snowfall

27.3 cm

Average feels-like high

14.9 °C

Average feels-like low

4.1 °C

Average peak gust

32.5 km/h

Tropical nights (≥ 20 °C)

0 d/yr

Solar radiation

13.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.6 °C

since 1940

+0.2 °C per decade · r² = 0.47 · 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

43.8 °C

27 June 2021

Coldest day

-23.3 °C

31 January 1950

Wettest day

96 mm

24 November 1960

Windiest day

47.2 km/h

14 November 1981

Strongest gust

120.2 km/h

14 December 2006

Hottest feels-like

46.1 °C

27 June 2021

Coldest feels-like

-27.8 °C

31 January 1950

Snowiest day

17.6 cm

29 December 2003

Sunniest day

15.1 h

21 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	37.5 °C10 August 2025	-6.7 °C12 February 2025	12.2 °C	1,094 mm	29	32
2024	39.6 °C9 July 2024	-11.0 °C16 January 2024	12.1 °C	1,527 mm	33	23
2023	41.1 °C14 August 2023	-6.7 °C25 February 2023	12.1 °C	1,211 mm	40	38
2022	38.4 °C29 July 2022	-6.5 °C22 December 2022	11.8 °C	1,070 mm	34	40
2021	43.8 °C27 June 2021	-5.1 °C10 February 2021	12.3 °C	1,149 mm	38	32
2020	37.0 °C15 August 2020	-4.6 °C9 November 2020	12.0 °C	1,113 mm	24	40
2019	36.4 °C27 August 2019	-6.8 °C30 November 2019	11.3 °C	978 mm	14	52
2018	36.6 °C12 July 2018	-5.7 °C13 February 2018	12.0 °C	1,015 mm	33	30
2017	40.2 °C2 August 2017	-10.4 °C13 January 2017	11.4 °C	1,455 mm	35	46
2016	38.9 °C19 August 2016	-5.7 °C17 December 2016	12.4 °C	1,500 mm	25	27
2015	39.4 °C30 July 2015	-6.8 °C30 November 2015	12.9 °C	1,132 mm	36	25
2014	35.9 °C1 July 2014	-8.0 °C7 February 2014	12.5 °C	1,325 mm	36	39
2013	33.4 °C24 July 2013	-13.3 °C8 December 2013	11.3 °C	740 mm	21	54
2012	39.4 °C4 August 2012	-4.3 °C7 March 2012	11.4 °C	1,606 mm	19	28
2011	35.8 °C10 September 2011	-7.3 °C26 February 2011	10.7 °C	1,092 mm	20	44
2010	37.8 °C14 August 2010	-5.7 °C24 November 2010	11.4 °C	1,507 mm	16	10
2009	41.1 °C28 July 2009	-13.2 °C9 December 2009	11.0 °C	1,007 mm	30	54
2008	38.2 °C14 August 2008	-9.0 °C16 December 2008	10.8 °C	976 mm	26	46
2007	38.8 °C10 July 2007	-9.6 °C13 January 2007	11.0 °C	1,043 mm	15	42
2006	39.9 °C23 July 2006	-7.2 °C20 February 2006	11.6 °C	1,423 mm	38	34
2005	36.0 °C27 July 2005	-6.4 °C16 December 2005	11.3 °C	1,118 mm	21	44
2004	39.2 °C23 July 2004	-8.2 °C6 January 2004	11.9 °C	1,021 mm	27	22
2003	37.7 °C29 July 2003	-9.7 °C30 December 2003	11.9 °C	1,178 mm	32	24
2002	38.6 °C13 August 2002	-6.6 °C29 January 2002	11.2 °C	1,167 mm	22	37
2001	35.4 °C9 August 2001	-4.3 °C17 January 2001	10.9 °C	1,035 mm	12	40
2000	34.8 °C27 June 2000	-5.6 °C18 November 2000	10.8 °C	997 mm	12	45
1999	33.8 °C13 September 1999	-2.5 °C9 February 1999	11.0 °C	1,480 mm	23	25
1998	39.0 °C27 July 1998	-11.3 °C23 December 1998	11.6 °C	1,550 mm	28	20
1997	34.2 °C12 August 1997	-5.2 °C14 January 1997	11.5 °C	1,283 mm	17	31
1996	37.6 °C13 July 1996	-11.7 °C3 February 1996	11.2 °C	1,872 mm	24	31
1995	36.6 °C17 July 1995	-6.4 °C13 February 1995	12.1 °C	1,470 mm	21	24
1994	37.7 °C21 July 1994	-5.2 °C5 December 1994	11.6 °C	1,207 mm	16	38
1993	36.9 °C3 August 1993	-14.3 °C11 January 1993	10.4 °C	1,049 mm	14	67
1992	39.6 °C22 June 1992	-5.8 °C5 December 1992	12.1 °C	991 mm	23	33
1991	36.6 °C23 July 1991	-6.6 °C27 January 1991	11.2 °C	907 mm	25	38
1990	37.3 °C11 August 1990	-13.8 °C21 December 1990	11.2 °C	1,091 mm	27	36
1989	34.2 °C24 June 1989	-18.4 °C5 February 1989	10.9 °C	894 mm	12	51
1988	39.9 °C2 September 1988	-5.5 °C2 February 1988	11.0 °C	1,034 mm	20	47
1987	37.8 °C31 August 1987	-5.2 °C8 January 1987	11.5 °C	1,046 mm	31	40
1986	35.1 °C8 August 1986	-5.1 °C9 February 1986	11.3 °C	1,186 mm	27	28
1985	37.7 °C19 July 1985	-7.8 °C4 February 1985	9.9 °C	726 mm	22	92
1984	35.3 °C24 July 1984	-8.6 °C20 December 1984	10.6 °C	1,282 mm	12	39
1983	35.9 °C28 May 1983	-12.7 °C23 December 1983	11.1 °C	1,560 mm	8	30
1982	36.3 °C18 June 1982	-15.0 °C6 January 1982	10.4 °C	1,331 mm	19	62
1981	40.4 °C10 August 1981	-4.3 °C28 November 1981	10.9 °C	1,350 mm	20	36
1980	36.8 °C21 July 1980	-11.6 °C30 January 1980	10.7 °C	1,188 mm	9	41
1979	38.1 °C16 July 1979	-12.3 °C1 January 1979	11.1 °C	1,131 mm	16	42
1978	38.5 °C7 August 1978	-11.4 °C30 December 1978	10.5 °C	1,075 mm	16	60
1977	38.0 °C16 August 1977	-8.9 °C20 November 1977	10.5 °C	1,162 mm	19	53
1976	32.1 °C15 July 1976	-6.5 °C29 November 1976	10.2 °C	897 mm	7	59
1975	34.7 °C26 July 1975	-5.4 °C1 February 1975	10.6 °C	1,333 mm	14	47
1974	35.3 °C28 July 1974	-10.9 °C9 January 1974	11.2 °C	1,363 mm	31	29
1973	36.6 °C14 July 1973	-7.1 °C7 January 1973	10.9 °C	1,481 mm	19	29
1972	39.7 °C7 August 1972	-20.2 °C9 December 1972	10.6 °C	1,328 mm	27	50
1971	37.0 °C11 August 1971	-10.6 °C1 March 1971	10.2 °C	1,573 mm	14	50
1970	35.4 °C14 July 1970	-5.9 °C22 December 1970	10.7 °C	1,511 mm	22	52
1969	35.2 °C17 June 1969	-13.2 °C23 January 1969	10.5 °C	1,256 mm	11	45
1968	35.6 °C31 July 1968	-12.8 °C30 December 1968	10.9 °C	1,712 mm	15	37
1967	36.1 °C1 July 1967	-5.9 °C13 December 1967	11.4 °C	1,226 mm	31	33
1966	35.2 °C15 June 1966	-5.1 °C19 January 1966	11.0 °C	1,348 mm	11	33
1965	37.8 °C31 July 1965	-7.7 °C16 December 1965	10.9 °C	1,124 mm	12	43
1964	34.5 °C11 July 1964	-12.6 °C17 December 1964	9.9 °C	1,415 mm	11	54
1963	33.0 °C15 June 1963	-11.6 °C12 January 1963	10.4 °C	1,324 mm	7	52
1962	34.5 °C27 July 1962	-9.2 °C26 February 1962	10.5 °C	1,280 mm	15	42
1961	38.8 °C12 July 1961	-6.5 °C11 December 1961	11.0 °C	1,732 mm	21	36
1960	37.7 °C6 July 1960	-9.0 °C10 January 1960	10.4 °C	1,614 mm	17	49
1959	35.7 °C30 July 1959	-8.3 °C4 January 1959	10.6 °C	1,282 mm	16	44
1958	38.7 °C27 July 1958	-5.3 °C27 November 1958	12.1 °C	1,353 mm	34	30
1957	32.6 °C14 September 1957	-13.8 °C27 January 1957	10.6 °C	1,405 mm	8	45
1956	38.0 °C18 July 1956	-12.5 °C1 February 1956	10.1 °C	1,334 mm	17	52
1955	35.8 °C5 September 1955	-11.2 °C15 November 1955	9.5 °C	1,549 mm	10	59
1954	29.2 °C31 July 1954	-14.3 °C20 January 1954	9.9 °C	1,475 mm	0	58
1953	33.4 °C11 August 1953	-7.0 °C19 February 1953	10.9 °C	1,724 mm	9	26
1952	37.9 °C8 July 1952	-8.9 °C28 November 1952	10.5 °C	1,044 mm	28	47
1951	36.4 °C29 June 1951	-9.8 °C30 January 1951	10.6 °C	1,466 mm	17	52
1950	34.9 °C20 August 1950	-23.3 °C31 January 1950	10.4 °C	1,688 mm	25	44
1949	34.9 °C14 July 1949	-10.1 °C24 January 1949	10.3 °C	1,098 mm	14	61
1948	34.9 °C9 September 1948	-6.7 °C3 February 1948	9.8 °C	1,506 mm	16	62
1947	30.5 °C1 September 1947	-7.0 °C31 January 1947	10.5 °C	1,321 mm	5	42
1946	38.1 °C20 July 1946	-6.2 °C11 February 1946	10.0 °C	1,367 mm	17	56
1945	36.9 °C5 August 1945	-7.5 °C19 December 1945	10.6 °C	1,338 mm	27	48
1944	38.0 °C18 July 1944	-4.9 °C25 December 1944	10.4 °C	914 mm	14	61
1943	34.9 °C24 July 1943	-15.8 °C24 January 1943	10.4 °C	820 mm	24	65
1942	37.5 °C15 August 1942	-9.8 °C2 January 1942	10.7 °C	1,088 mm	33	56
1941	39.6 °C16 July 1941	-4.5 °C27 December 1941	10.9 °C	1,008 mm	20	46
1940	37.3 °C17 August 1940	-6.3 °C15 December 1940	11.4 °C	1,161 mm	30	46

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

17.7 °C

+1.4 °C

Hot days (≥ 30 °C)

29 d/yr

Frost days (< 0 °C)

32 d/yr

-10

Annual rainfall

1094 mm

-160 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	8.3 °C	+0.9 °C	104 mm	-83 mm
Feb	8.9 °C	-0.8 °C	160 mm	+12 mm
Mar	12.8 °C	+0.8 °C	209 mm	+54 mm
Apr	17.3 °C	+2.6 °C	57 mm	-43 mm
May	19.4 °C	+0.8 °C	26 mm	-38 mm
Jun	24.1 °C	+2.1 °C	18 mm	-18 mm
Jul	28.5 °C	+1.9 °C	0 mm	-10 mm
Aug	28.9 °C	+2.3 °C	9 mm	-8 mm
Sep	24.9 °C	+1.4 °C	35 mm	-7 mm
Oct	16.4 °C	-0.5 °C	120 mm	+13 mm
Nov	12.0 °C	+1.4 °C	145 mm	-42 mm
Dec	10.7 °C	+3.1 °C	212 mm	+11 mm

The year's extremes

Hottest day

37.5 °C

10 Aug 2025

Coldest day

-6.7 °C

12 Feb 2025

Wettest day

59.8 mm

18 Dec 2025

Windiest day

36.3 km/h

17 Dec 2025

Strongest gust

102.6 km/h

17 Dec 2025

Hottest feels-like

39.3 °C

11 Aug 2025

Coldest feels-like

-10.8 °C

12 Feb 2025

Snowiest day

4.2 cm

13 Feb 2025

Sunniest day

15.1 h

23 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 Dallas?

Dallas has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 11.0 °C and it receives 1,254 mm of precipitation per year.

What is the hottest day ever recorded in Dallas?

The hottest day measured in Dallas between 1940 and 2025 was 27 June 2021, reaching 43.8 °C.

What is the coldest day in Dallas?

The coldest day measured in Dallas between 1940 and 2025 was 31 January 1950, at -23.3 °C.

Does it snow in Dallas?

Yes. Dallas gets on average 27.3 cm of snow per year and has around 42 frost days.

Has the climate of Dallas warmed?

Yes: Dallas warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Dallas?

The wettest day measured in Dallas between 1940 and 2025 was 24 November 1960, with 96 mm of rain in 24 hours.

What was the windiest day in Dallas?

The windiest day measured in Dallas between 1940 and 2025 was 14 November 1981, with winds reaching 47.2 km/h.

What is the warmest month in Dallas?

The warmest month in Dallas is July (18.9 °C on average); the coldest is January (4.1 °C).

How much does it rain in Dallas?

Dallas receives on average 1,254 mm of precipitation per year, spread over about 137 rainy days.

Is it sunny in Dallas?

Dallas gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.

What is the biggest single-day snowfall in Dallas?

The heaviest 24-hour snowfall measured in Dallas between 1940 and 2025 was 29 December 2003, with 17.6 cm.

Are there tropical nights in Dallas?

Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Dallas.

What was the most extreme apparent temperature in Dallas?

In Dallas, between 1940 and 2025, the highest apparent temperature reached 46.1 °C on 27 June 2021, and the lowest was -27.8 °C on 31 January 1950.

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