Williamsburg climate — normals and trends

Q: What is the climate of Williamsburg?

Williamsburg has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.1 °C and it receives 1,083 mm of precipitation per year.

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

The hottest day measured in Williamsburg between 1940 and 2025 was 25 July 2010, reaching 38.2 °C.

Q: What is the coldest day in Williamsburg?

The coldest day measured in Williamsburg between 1940 and 2025 was 21 January 1985, at -21.1 °C.

Q: Does it snow in Williamsburg?

Yes. Williamsburg gets on average 21.6 cm of snow per year and has around 38 frost days.

Q: Has the climate of Williamsburg warmed?

Yes: Williamsburg warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Williamsburg?

The wettest day measured in Williamsburg between 1940 and 2025 was 27 August 2011, with 189 mm of rain in 24 hours.

Q: What was the windiest day in Williamsburg?

The windiest day measured in Williamsburg between 1940 and 2025 was 18 September 2003, with winds reaching 65.2 km/h.

Q: What is the warmest month in Williamsburg?

The warmest month in Williamsburg is July (25.8 °C on average); the coldest is January (4.0 °C).

Q: How much does it rain in Williamsburg?

Williamsburg receives on average 1,083 mm of precipitation per year, spread over about 118 rainy days.

Q: Is it sunny in Williamsburg?

Williamsburg gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.

Williamsburg (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.1 °C and it receives 1,083 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 (25.8 °C on average) and the coldest is January (4.0 °C). Rainfall peaks in July.

Williamsburg averages 38 frost days, 36 hot days (≥ 30 °C) and 118 rainy days per year.

Williamsburg has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.

The hottest day of the period reached 38.2 °C (on 25 July 2010) and the coldest -21.1 °C (on 21 January 1985).

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

WilliamsburgVirginia

coords: 37.27°, -76.71°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJulyColdest monthJanuaryWettest monthJulyDriest monthDecember

Mean daily temperature

15.1°C

Average daily high

19.0°C

Average daily low

11.6°C

Annual rainfall

1,083mm

Sunshine / day

9.1h

Mean relative humidity

74%

Average peak wind

16.7km/h

Seasonal range

21.8°C

Frost days (< 0 °C)

38 d/yr

Hot days (≥ 30 °C)

36 d/yr

Rainy days (≥ 1 mm)

118 d/yr

Annual snowfall

21.6 cm

Average feels-like high

18.9 °C

Average feels-like low

10.2 °C

Average peak gust

35.4 km/h

Tropical nights (≥ 20 °C)

89 d/yr

Solar radiation

15.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.2 °C

since 1940

+0.1 °C per decade · r² = 0.26 · 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

38.2 °C

25 July 2010

Coldest day

-21.1 °C

21 January 1985

Wettest day

189 mm

27 August 2011

Windiest day

65.2 km/h

18 September 2003

Strongest gust

150.1 km/h

18 September 2003

Hottest feels-like

43.8 °C

1 August 1999

Coldest feels-like

-27.9 °C

21 January 1985

Snowiest day

25.5 cm

24 January 1940

Sunniest day

14.1 h

2 July 2008

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	34.4 °C25 June 2025	-10.7 °C23 January 2025	15.5 °C	1,097 mm	38	43
2024	35.2 °C2 August 2024	-6.4 °C7 December 2024	16.0 °C	1,085 mm	31	22
2023	34.1 °C7 September 2023	-6.0 °C4 February 2023	16.4 °C	1,175 mm	38	8
2022	35.2 °C17 June 2022	-11.9 °C24 December 2022	15.8 °C	960 mm	57	45
2021	34.7 °C13 August 2021	-4.7 °C30 January 2021	16.1 °C	1,011 mm	52	19
2020	35.5 °C20 July 2020	-3.6 °C26 December 2020	16.6 °C	1,565 mm	56	13
2019	36.8 °C22 July 2019	-8.6 °C22 January 2019	16.5 °C	1,067 mm	63	25
2018	35.1 °C19 June 2018	-14.4 °C7 January 2018	16.0 °C	1,412 mm	46	37
2017	34.3 °C22 July 2017	-14.1 °C9 January 2017	16.3 °C	1,105 mm	45	27
2016	34.8 °C24 July 2016	-10.2 °C14 February 2016	15.8 °C	1,336 mm	43	33
2015	36.5 °C16 June 2015	-17.2 °C21 February 2015	15.8 °C	1,093 mm	40	42
2014	35.1 °C18 June 2014	-12.0 °C30 January 2014	14.9 °C	1,022 mm	32	46
2013	33.3 °C18 July 2013	-7.2 °C25 January 2013	15.2 °C	1,249 mm	39	35
2012	38.2 °C8 July 2012	-5.5 °C4 January 2012	16.1 °C	1,100 mm	39	12
2011	36.8 °C23 July 2011	-8.5 °C23 January 2011	16.0 °C	1,050 mm	49	32
2010	38.2 °C25 July 2010	-9.5 °C1 February 2010	15.4 °C	951 mm	67	57
2009	33.1 °C26 July 2009	-12.3 °C17 January 2009	15.1 °C	1,266 mm	27	46
2008	36.3 °C10 June 2008	-6.6 °C21 January 2008	15.6 °C	1,034 mm	35	28
2007	37.6 °C8 August 2007	-10.4 °C6 February 2007	15.8 °C	710 mm	46	35
2006	34.2 °C2 August 2006	-6.6 °C19 February 2006	15.9 °C	1,439 mm	37	15
2005	36.3 °C27 July 2005	-9.5 °C24 January 2005	15.2 °C	1,007 mm	46	43
2004	33.8 °C18 June 2004	-9.9 °C11 January 2004	15.2 °C	1,091 mm	26	45
2003	33.9 °C9 July 2003	-12.2 °C18 January 2003	14.8 °C	1,526 mm	33	44
2002	34.3 °C19 July 2002	-5.7 °C5 January 2002	15.8 °C	1,158 mm	43	35
2001	34.1 °C10 August 2001	-7.1 °C3 January 2001	15.6 °C	814 mm	17	34
2000	33.1 °C10 July 2000	-12.8 °C28 January 2000	14.8 °C	1,006 mm	21	49
1999	37.3 °C1 August 1999	-7.4 °C6 January 1999	15.8 °C	1,094 mm	36	29
1998	35.1 °C23 July 1998	-5.6 °C1 January 1998	16.2 °C	1,178 mm	34	13
1997	35.2 °C26 June 1997	-12.6 °C19 January 1997	14.7 °C	1,050 mm	26	24
1996	33.8 °C8 July 1996	-16.8 °C5 February 1996	14.4 °C	1,324 mm	24	48
1995	35.0 °C23 July 1995	-9.5 °C6 February 1995	15.1 °C	969 mm	39	38
1994	34.0 °C15 June 1994	-16.0 °C19 January 1994	15.6 °C	1,126 mm	40	28
1993	35.9 °C10 July 1993	-9.6 °C30 December 1993	15.2 °C	996 mm	50	38
1992	35.8 °C15 July 1992	-6.6 °C20 January 1992	14.5 °C	1,126 mm	21	31
1991	36.3 °C23 July 1991	-6.8 °C16 February 1991	16.0 °C	870 mm	45	26
1990	35.6 °C10 July 1990	-6.9 °C26 February 1990	16.4 °C	977 mm	34	13
1989	34.8 °C2 June 1989	-12.5 °C22 December 1989	14.9 °C	1,523 mm	35	53
1988	35.6 °C17 August 1988	-11.0 °C12 January 1988	14.5 °C	1,008 mm	50	48
1987	36.6 °C3 August 1987	-15.4 °C28 January 1987	14.9 °C	982 mm	47	39
1986	36.7 °C19 July 1986	-8.6 °C9 January 1986	15.2 °C	923 mm	47	46
1985	34.8 °C10 September 1985	-21.1 °C21 January 1985	15.4 °C	1,001 mm	38	54
1984	35.8 °C14 June 1984	-11.0 °C22 January 1984	15.0 °C	1,093 mm	29	44
1983	36.9 °C22 August 1983	-14.1 °C25 December 1983	15.1 °C	1,280 mm	45	27
1982	33.3 °C31 May 1982	-15.0 °C17 January 1982	14.9 °C	1,178 mm	24	39
1981	35.8 °C25 June 1981	-12.5 °C13 January 1981	14.3 °C	911 mm	35	58
1980	36.3 °C1 August 1980	-12.6 °C11 February 1980	14.8 °C	820 mm	54	45
1979	34.6 °C10 August 1979	-15.0 °C10 February 1979	14.7 °C	1,140 mm	18	49
1978	34.3 °C23 July 1978	-10.1 °C11 January 1978	14.3 °C	1,237 mm	39	65
1977	35.8 °C8 July 1977	-16.9 °C17 January 1977	14.9 °C	1,096 mm	54	65
1976	35.7 °C24 July 1976	-11.5 °C19 January 1976	14.5 °C	874 mm	29	54
1975	34.0 °C25 August 1975	-6.5 °C19 December 1975	15.4 °C	1,244 mm	31	26
1974	33.5 °C15 July 1974	-5.1 °C26 February 1974	15.2 °C	1,076 mm	22	26
1973	32.5 °C4 July 1973	-10.0 °C18 February 1973	15.3 °C	1,096 mm	29	41
1972	33.4 °C24 July 1972	-13.8 °C16 January 1972	14.4 °C	1,284 mm	21	36
1971	33.0 °C28 June 1971	-11.1 °C2 February 1971	14.9 °C	1,083 mm	18	47
1970	34.6 °C4 July 1970	-15.8 °C10 January 1970	14.5 °C	904 mm	31	58
1969	34.2 °C28 June 1969	-10.3 °C5 January 1969	14.0 °C	1,072 mm	31	55
1968	34.7 °C25 August 1968	-10.9 °C22 February 1968	14.3 °C	919 mm	37	66
1967	33.9 °C25 June 1967	-10.3 °C25 February 1967	14.0 °C	932 mm	21	48
1966	34.8 °C4 July 1966	-12.4 °C31 January 1966	13.9 °C	977 mm	32	52
1965	34.4 °C25 July 1965	-13.7 °C1 February 1965	14.2 °C	731 mm	31	50
1964	35.0 °C10 June 1964	-13.3 °C15 January 1964	14.6 °C	1,139 mm	28	41
1963	33.6 °C10 June 1963	-10.5 °C29 January 1963	13.8 °C	913 mm	24	63
1962	32.7 °C20 August 1962	-11.3 °C11 January 1962	14.1 °C	1,162 mm	24	47
1961	33.3 °C29 July 1961	-11.0 °C28 January 1961	14.6 °C	1,206 mm	39	45
1960	34.2 °C24 June 1960	-9.9 °C13 December 1960	14.2 °C	1,141 mm	26	64
1959	34.9 °C29 June 1959	-10.2 °C6 January 1959	15.3 °C	1,057 mm	39	36
1958	34.6 °C15 August 1958	-15.3 °C16 December 1958	13.9 °C	1,196 mm	38	58
1957	35.4 °C22 July 1957	-12.8 °C18 January 1957	15.3 °C	1,166 mm	51	29
1956	35.6 °C2 July 1956	-6.2 °C28 January 1956	15.1 °C	1,052 mm	48	33
1955	33.8 °C2 August 1955	-8.9 °C31 January 1955	14.9 °C	1,167 mm	34	53
1954	36.8 °C14 July 1954	-11.0 °C8 December 1954	15.2 °C	854 mm	42	37
1953	35.1 °C2 July 1953	-6.8 °C18 December 1953	15.9 °C	973 mm	45	19
1952	37.2 °C26 June 1952	-6.7 °C30 January 1952	15.3 °C	1,011 mm	52	20
1951	34.2 °C23 July 1951	-8.9 °C4 February 1951	14.9 °C	1,049 mm	28	41
1950	34.0 °C27 June 1950	-6.6 °C20 December 1950	14.8 °C	921 mm	27	36
1949	34.5 °C25 July 1949	-3.2 °C1 March 1949	15.9 °C	1,088 mm	28	17
1948	34.3 °C29 August 1948	-10.5 °C25 January 1948	14.9 °C	1,149 mm	31	42
1947	33.2 °C20 August 1947	-9.6 °C9 February 1947	14.8 °C	940 mm	21	42
1946	33.2 °C18 June 1946	-5.2 °C28 January 1946	15.6 °C	1,017 mm	11	24
1945	34.5 °C1 July 1945	-5.2 °C25 January 1945	15.4 °C	1,280 mm	21	31
1944	34.6 °C19 June 1944	-8.0 °C14 January 1944	15.2 °C	1,175 mm	41	23
1943	34.0 °C22 July 1943	-7.3 °C15 February 1943	15.0 °C	872 mm	47	30
1942	35.5 °C20 July 1942	-10.7 °C21 December 1942	15.4 °C	1,098 mm	27	36
1941	33.4 °C29 May 1941	-5.4 °C1 March 1941	15.3 °C	935 mm	35	39
1940	35.3 °C27 July 1940	-12.8 °C28 January 1940	14.4 °C	1,180 mm	23	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

19.5 °C

+0.5 °C

Hot days (≥ 30 °C)

38 d/yr

Frost days (< 0 °C)

43 d/yr

Annual rainfall

1097 mm

+14 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	5.7 °C	-2.1 °C	50 mm	-36 mm
Feb	10.1 °C	+0.7 °C	124 mm	+40 mm
Mar	17.1 °C	+3.5 °C	87 mm	-10 mm
Apr	21.6 °C	+2.6 °C	113 mm	+31 mm
May	23.8 °C	+0.5 °C	159 mm	+68 mm
Jun	29.2 °C	+1.8 °C	105 mm	+18 mm
Jul	30.6 °C	+1.2 °C	123 mm	+13 mm
Aug	26.5 °C	-2.0 °C	45 mm	-63 mm
Sep	25.0 °C	-0.4 °C	107 mm	+7 mm
Oct	19.6 °C	-0.5 °C	52 mm	-28 mm
Nov	15.4 °C	+0.7 °C	58 mm	-23 mm
Dec	8.3 °C	-1.5 °C	76 mm	-3 mm

The year's extremes

Hottest day

34.4 °C

25 Jun 2025

Coldest day

-10.7 °C

23 Jan 2025

Wettest day

51.4 mm

13 May 2025

Windiest day

37.1 km/h

16 Feb 2025

Strongest gust

95.8 km/h

16 Feb 2025

Hottest feels-like

42.7 °C

24 Jun 2025

Coldest feels-like

-14.9 °C

23 Jan 2025

Snowiest day

7.1 cm

11 Jan 2025

Sunniest day

14.1 h

4 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 Williamsburg?

Williamsburg has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.1 °C and it receives 1,083 mm of precipitation per year.

What is the hottest day ever recorded in Williamsburg?

The hottest day measured in Williamsburg between 1940 and 2025 was 25 July 2010, reaching 38.2 °C.

What is the coldest day in Williamsburg?

The coldest day measured in Williamsburg between 1940 and 2025 was 21 January 1985, at -21.1 °C.

Does it snow in Williamsburg?

Yes. Williamsburg gets on average 21.6 cm of snow per year and has around 38 frost days.

Has the climate of Williamsburg warmed?

Yes: Williamsburg warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Williamsburg?

The wettest day measured in Williamsburg between 1940 and 2025 was 27 August 2011, with 189 mm of rain in 24 hours.

What was the windiest day in Williamsburg?

The windiest day measured in Williamsburg between 1940 and 2025 was 18 September 2003, with winds reaching 65.2 km/h.

What is the warmest month in Williamsburg?

The warmest month in Williamsburg is July (25.8 °C on average); the coldest is January (4.0 °C).

How much does it rain in Williamsburg?

Williamsburg receives on average 1,083 mm of precipitation per year, spread over about 118 rainy days.

Is it sunny in Williamsburg?

Williamsburg gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.

What is the biggest single-day snowfall in Williamsburg?

The heaviest 24-hour snowfall measured in Williamsburg between 1940 and 2025 was 24 January 1940, with 25.5 cm.

Are there tropical nights in Williamsburg?

Yes: Williamsburg has on average 89 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Williamsburg?

In Williamsburg, between 1940 and 2025, the highest apparent temperature reached 43.8 °C on 1 August 1999, and the lowest was -27.9 °C on 21 January 1985.

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