Battle Ground climate — normals and trends

Q: What is the climate of Battle Ground?

Battle Ground has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 10.6 °C and it receives 1,914 mm of precipitation per year.

Q: What is the hottest day ever recorded in Battle Ground?

The hottest day measured in Battle Ground between 1940 and 2025 was 28 June 2021, reaching 44.5 °C.

Q: What is the coldest day in Battle Ground?

The coldest day measured in Battle Ground between 1940 and 2025 was 21 December 1990, at -20.1 °C.

Q: Does it snow in Battle Ground?

Yes. Battle Ground gets on average 72.8 cm of snow per year and has around 38 frost days.

Q: Has the climate of Battle Ground warmed?

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

Q: What is the wettest day in Battle Ground?

The wettest day measured in Battle Ground between 1940 and 2025 was 6 November 2006, with 130 mm of rain in 24 hours.

Q: What was the windiest day in Battle Ground?

The windiest day measured in Battle Ground between 1940 and 2025 was 14 November 1981, with winds reaching 41.8 km/h.

Q: What is the warmest month in Battle Ground?

The warmest month in Battle Ground is July (18.7 °C on average); the coldest is January (3.3 °C).

Q: How much does it rain in Battle Ground?

Battle Ground receives on average 1,914 mm of precipitation per year, spread over about 161 rainy days.

Q: Is it sunny in Battle Ground?

Battle Ground gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.

Battle Ground (United States) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 10.6 °C and it receives 1,914 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 (18.7 °C on average) and the coldest is January (3.3 °C). Rainfall peaks in December.

Battle Ground averages 38 frost days, 17 hot days (≥ 30 °C) and 161 rainy days per year.

Battle Ground 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 49 to 27 per year over the period.

The hottest day of the period reached 44.5 °C (on 28 June 2021) and the coldest -20.1 °C (on 21 December 1990).

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

Battle GroundWashington

coords: 45.78°, -122.53°
period: 1940–2025 · 86 yrs

CsbWarm-summer MediterraneanWarmest monthJulyColdest monthJanuaryWettest monthDecemberDriest monthJuly

Mean daily temperature

10.6°C

Average daily high

15.5°C

Average daily low

6.5°C

Annual rainfall

1,914mm

Sunshine / day

8.5h

Mean relative humidity

77%

Average peak wind

12.1km/h

Seasonal range

15.4°C

Frost days (< 0 °C)

38 d/yr

Hot days (≥ 30 °C)

17 d/yr

Rainy days (≥ 1 mm)

161 d/yr

Annual snowfall

72.8 cm

Average feels-like high

14.0 °C

Average feels-like low

4.2 °C

Average peak gust

33.5 km/h

Tropical nights (≥ 20 °C)

0 d/yr

Solar radiation

13.4 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.6 °C

since 1940

+0.2 °C per decade · r² = 0.41 · 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

44.5 °C

28 June 2021

Coldest day

-20.1 °C

21 December 1990

Wettest day

130 mm

6 November 2006

Windiest day

41.8 km/h

14 November 1981

Strongest gust

110.9 km/h

14 December 2006

Hottest feels-like

44.3 °C

28 June 2021

Coldest feels-like

-25.2 °C

21 December 1990

Snowiest day

22.1 cm

31 January 1969

Sunniest day

15.3 h

16 June 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	36.7 °C23 August 2025	-5.0 °C12 February 2025	12.0 °C	1,821 mm	24	27
2024	39.4 °C9 July 2024	-11.5 °C14 January 2024	11.7 °C	2,024 mm	28	16
2023	40.7 °C14 August 2023	-6.9 °C25 February 2023	11.9 °C	1,660 mm	29	25
2022	37.9 °C26 July 2022	-9.5 °C1 January 2022	11.6 °C	1,934 mm	36	33
2021	44.5 °C28 June 2021	-7.1 °C29 December 2021	11.7 °C	1,985 mm	24	26
2020	37.3 °C15 August 2020	-2.6 °C4 February 2020	11.6 °C	2,016 mm	19	21
2019	34.8 °C28 August 2019	-6.0 °C7 February 2019	11.0 °C	1,393 mm	13	44
2018	37.3 °C29 July 2018	-10.6 °C23 February 2018	11.9 °C	1,703 mm	36	24
2017	39.2 °C2 August 2017	-13.0 °C13 January 2017	11.1 °C	2,291 mm	32	41
2016	36.4 °C19 August 2016	-8.3 °C17 December 2016	12.0 °C	2,043 mm	20	22
2015	38.8 °C30 July 2015	-4.6 °C1 January 2015	12.7 °C	1,833 mm	29	20
2014	36.5 °C11 August 2014	-9.9 °C7 February 2014	12.0 °C	2,136 mm	27	29
2013	34.8 °C11 September 2013	-11.4 °C8 December 2013	11.0 °C	1,557 mm	16	44
2012	37.7 °C4 August 2012	-4.0 °C13 January 2012	11.1 °C	2,423 mm	18	25
2011	34.5 °C20 August 2011	-11.7 °C26 February 2011	10.1 °C	1,948 mm	14	43
2010	37.0 °C15 August 2010	-12.1 °C24 November 2010	11.0 °C	2,098 mm	13	9
2009	41.3 °C29 July 2009	-11.6 °C10 December 2009	10.7 °C	1,678 mm	26	54
2008	37.0 °C16 August 2008	-10.4 °C16 December 2008	10.2 °C	1,837 mm	18	38
2007	37.6 °C10 July 2007	-7.7 °C12 January 2007	10.7 °C	1,803 mm	11	35
2006	39.6 °C21 July 2006	-6.2 °C19 February 2006	11.2 °C	2,125 mm	27	28
2005	35.4 °C4 August 2005	-3.8 °C15 January 2005	11.1 °C	1,640 mm	19	35
2004	38.0 °C23 July 2004	-9.8 °C6 January 2004	11.6 °C	1,740 mm	17	15
2003	36.8 °C29 July 2003	-7.3 °C22 November 2003	11.6 °C	1,785 mm	31	21
2002	37.9 °C13 August 2002	-5.9 °C29 January 2002	10.7 °C	1,610 mm	15	32
2001	36.0 °C9 August 2001	-2.6 °C17 January 2001	10.6 °C	1,638 mm	6	26
2000	34.5 °C27 June 2000	-3.3 °C18 November 2000	10.4 °C	1,436 mm	9	38
1999	32.9 °C13 September 1999	-1.9 °C9 February 1999	10.6 °C	2,237 mm	14	18
1998	38.0 °C28 July 1998	-11.3 °C21 December 1998	11.2 °C	2,067 mm	19	23
1997	33.7 °C4 July 1997	-5.4 °C14 January 1997	11.1 °C	2,068 mm	13	29
1996	37.7 °C13 July 1996	-11.6 °C1 February 1996	10.6 °C	2,532 mm	23	36
1995	36.1 °C17 July 1995	-8.3 °C14 February 1995	11.7 °C	2,244 mm	17	19
1994	37.5 °C20 July 1994	-5.9 °C5 December 1994	11.2 °C	1,933 mm	13	39
1993	35.8 °C3 August 1993	-10.5 °C24 November 1993	10.2 °C	1,400 mm	11	57
1992	38.9 °C22 June 1992	-5.9 °C5 December 1992	12.0 °C	1,408 mm	23	23
1991	36.4 °C23 July 1991	-8.2 °C5 January 1991	10.9 °C	1,700 mm	23	36
1990	38.5 °C11 August 1990	-20.1 °C21 December 1990	10.9 °C	1,972 mm	28	39
1989	32.5 °C22 September 1989	-18.1 °C5 February 1989	10.4 °C	1,550 mm	7	41
1988	40.1 °C2 September 1988	-7.0 °C2 February 1988	10.8 °C	1,715 mm	21	40
1987	38.1 °C31 August 1987	-9.8 °C16 January 1987	11.4 °C	1,404 mm	27	39
1986	36.8 °C26 August 1986	-4.2 °C19 February 1986	11.2 °C	1,733 mm	21	20
1985	38.1 °C19 July 1985	-13.2 °C4 February 1985	9.4 °C	1,376 mm	24	97
1984	36.3 °C24 July 1984	-12.3 °C20 December 1984	10.2 °C	2,064 mm	10	32
1983	36.7 °C28 May 1983	-15.0 °C23 December 1983	10.7 °C	2,200 mm	7	26
1982	36.6 °C18 June 1982	-14.3 °C6 January 1982	10.3 °C	2,009 mm	21	50
1981	40.8 °C10 August 1981	-6.6 °C30 December 1981	10.9 °C	1,964 mm	19	23
1980	37.6 °C21 July 1980	-13.2 °C29 January 1980	10.3 °C	1,752 mm	10	41
1979	38.7 °C16 July 1979	-12.8 °C1 January 1979	10.8 °C	1,563 mm	10	40
1978	39.5 °C7 August 1978	-13.1 °C30 December 1978	10.3 °C	1,508 mm	15	49
1977	39.2 °C17 August 1977	-7.9 °C9 January 1977	10.4 °C	2,049 mm	20	39
1976	32.3 °C15 July 1976	-6.5 °C3 March 1976	10.1 °C	1,460 mm	3	39
1975	34.1 °C26 July 1975	-6.5 °C29 January 1975	10.1 °C	2,321 mm	11	44
1974	33.6 °C31 July 1974	-14.0 °C10 January 1974	10.7 °C	2,192 mm	23	32
1973	34.1 °C14 July 1973	-9.7 °C7 January 1973	10.4 °C	2,028 mm	18	27
1972	38.6 °C7 August 1972	-18.2 °C8 December 1972	10.2 °C	2,318 mm	24	47
1971	37.2 °C9 August 1971	-9.4 °C5 January 1971	9.8 °C	2,467 mm	16	53
1970	36.4 °C2 June 1970	-7.1 °C11 January 1970	10.5 °C	2,174 mm	16	40
1969	35.0 °C17 June 1969	-12.3 °C24 January 1969	10.1 °C	1,828 mm	12	50
1968	35.6 °C31 July 1968	-15.1 °C30 December 1968	10.5 °C	2,433 mm	14	39
1967	37.8 °C9 August 1967	-4.7 °C14 December 1967	11.2 °C	1,939 mm	31	33
1966	33.0 °C15 June 1966	-4.3 °C15 February 1966	10.7 °C	1,796 mm	9	30
1965	38.3 °C31 July 1965	-4.1 °C16 December 1965	10.7 °C	1,597 mm	11	38
1964	33.2 °C11 July 1964	-15.4 °C16 December 1964	9.3 °C	2,268 mm	3	45
1963	33.8 °C9 September 1963	-12.0 °C12 January 1963	10.2 °C	1,793 mm	12	45
1962	33.9 °C27 July 1962	-16.1 °C21 January 1962	10.2 °C	1,921 mm	9	38
1961	39.4 °C12 July 1961	-7.3 °C11 December 1961	10.8 °C	2,473 mm	23	29
1960	36.6 °C6 July 1960	-8.4 °C10 January 1960	10.0 °C	2,304 mm	14	48
1959	35.0 °C30 July 1959	-10.6 °C3 January 1959	10.1 °C	2,283 mm	10	37
1958	39.2 °C27 July 1958	-3.9 °C27 November 1958	11.9 °C	2,071 mm	29	22
1957	33.4 °C14 September 1957	-18.7 °C27 January 1957	10.2 °C	1,881 mm	5	42
1956	39.0 °C19 July 1956	-14.0 °C16 February 1956	9.7 °C	2,049 mm	16	59
1955	35.9 °C5 September 1955	-12.2 °C15 November 1955	8.8 °C	2,430 mm	9	73
1954	29.0 °C17 May 1954	-11.0 °C20 January 1954	9.6 °C	2,137 mm	0	49
1953	34.0 °C14 August 1953	-3.7 °C18 February 1953	10.6 °C	2,619 mm	10	18
1952	37.1 °C3 August 1952	-11.0 °C1 January 1952	10.2 °C	1,441 mm	21	49
1951	35.6 °C29 June 1951	-12.3 °C30 January 1951	10.1 °C	2,113 mm	14	49
1950	32.8 °C19 August 1950	-17.7 °C31 January 1950	9.6 °C	2,583 mm	16	45
1949	33.7 °C14 July 1949	-14.4 °C24 January 1949	9.6 °C	1,829 mm	10	58
1948	33.7 °C7 June 1948	-9.5 °C6 February 1948	9.3 °C	2,253 mm	12	63
1947	30.4 °C17 July 1947	-13.8 °C15 January 1947	10.1 °C	1,959 mm	2	41
1946	38.0 °C20 July 1946	-7.5 °C30 December 1946	9.5 °C	2,057 mm	12	52
1945	36.2 °C5 August 1945	-8.4 °C19 December 1945	10.1 °C	2,118 mm	21	49
1944	38.4 °C18 July 1944	-3.4 °C27 March 1944	10.3 °C	1,248 mm	12	49
1943	34.2 °C24 July 1943	-14.6 °C18 January 1943	10.2 °C	1,252 mm	21	63
1942	37.7 °C15 August 1942	-11.1 °C1 January 1942	10.4 °C	1,529 mm	23	51
1941	39.9 °C16 July 1941	-3.6 °C26 December 1941	11.0 °C	1,258 mm	20	23
1940	38.4 °C18 August 1940	-4.7 °C15 January 1940	11.3 °C	1,514 mm	19	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

17.0 °C

+1.5 °C

Hot days (≥ 30 °C)

24 d/yr

Frost days (< 0 °C)

27 d/yr

-11

Annual rainfall

1821 mm

-93 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	8.0 °C	+1.7 °C	122 mm	-150 mm
Feb	8.0 °C	-0.6 °C	249 mm	+38 mm
Mar	12.2 °C	+0.8 °C	293 mm	+83 mm
Apr	17.2 °C	+2.7 °C	82 mm	-70 mm
May	19.3 °C	+1.0 °C	57 mm	-48 mm
Jun	23.3 °C	+2.1 °C	44 mm	-29 mm
Jul	27.4 °C	+1.9 °C	2 mm	-19 mm
Aug	27.1 °C	+1.5 °C	51 mm	+18 mm
Sep	23.8 °C	+1.4 °C	44 mm	-40 mm
Oct	15.4 °C	-0.5 °C	177 mm	-5 mm
Nov	11.3 °C	+1.5 °C	241 mm	-45 mm
Dec	9.9 °C	+3.4 °C	460 mm	+174 mm

The year's extremes

Hottest day

36.7 °C

23 Aug 2025

Coldest day

-5.0 °C

12 Feb 2025

Wettest day

68.0 mm

23 Feb 2025

Windiest day

32.3 km/h

17 Dec 2025

Strongest gust

92.2 km/h

18 Dec 2025

Hottest feels-like

37.2 °C

11 Aug 2025

Coldest feels-like

-10.6 °C

12 Feb 2025

Snowiest day

4.9 cm

2 Feb 2025

Sunniest day

15.3 h

16 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 Battle Ground?

Battle Ground has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 10.6 °C and it receives 1,914 mm of precipitation per year.

What is the hottest day ever recorded in Battle Ground?

The hottest day measured in Battle Ground between 1940 and 2025 was 28 June 2021, reaching 44.5 °C.

What is the coldest day in Battle Ground?

The coldest day measured in Battle Ground between 1940 and 2025 was 21 December 1990, at -20.1 °C.

Does it snow in Battle Ground?

Yes. Battle Ground gets on average 72.8 cm of snow per year and has around 38 frost days.

Has the climate of Battle Ground warmed?

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

What is the wettest day in Battle Ground?

The wettest day measured in Battle Ground between 1940 and 2025 was 6 November 2006, with 130 mm of rain in 24 hours.

What was the windiest day in Battle Ground?

The windiest day measured in Battle Ground between 1940 and 2025 was 14 November 1981, with winds reaching 41.8 km/h.

What is the warmest month in Battle Ground?

The warmest month in Battle Ground is July (18.7 °C on average); the coldest is January (3.3 °C).

How much does it rain in Battle Ground?

Battle Ground receives on average 1,914 mm of precipitation per year, spread over about 161 rainy days.

Is it sunny in Battle Ground?

Battle Ground gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.

What is the biggest single-day snowfall in Battle Ground?

The heaviest 24-hour snowfall measured in Battle Ground between 1940 and 2025 was 31 January 1969, with 22.1 cm.

Are there tropical nights in Battle Ground?

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

What was the most extreme apparent temperature in Battle Ground?

In Battle Ground, between 1940 and 2025, the highest apparent temperature reached 44.3 °C on 28 June 2021, and the lowest was -25.2 °C on 21 December 1990.

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