Salem climate — normals and trends

Q: What is the climate of Salem?

Salem has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 11.9 °C and it receives 1,095 mm of precipitation per year.

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

The hottest day measured in Salem between 1940 and 2025 was 27 June 2021, reaching 46.4 °C.

Q: What is the coldest day in Salem?

The coldest day measured in Salem between 1940 and 2025 was 31 January 1950, at -19.3 °C.

Q: Does it snow in Salem?

Yes. Salem gets on average 10.8 cm of snow per year and has around 31 frost days.

Q: Has the climate of Salem warmed?

Yes: Salem warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Salem?

The wettest day measured in Salem between 1940 and 2025 was 24 November 1960, with 103 mm of rain in 24 hours.

Q: What was the windiest day in Salem?

The windiest day measured in Salem between 1940 and 2025 was 12 October 1962, with winds reaching 53.3 km/h.

Q: What is the warmest month in Salem?

The warmest month in Salem is July (20.2 °C on average); the coldest is January (4.9 °C).

Q: How much does it rain in Salem?

Salem receives on average 1,095 mm of precipitation per year, spread over about 130 rainy days.

Q: Is it sunny in Salem?

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

Salem (United States) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 11.9 °C and it receives 1,095 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 (20.2 °C on average) and the coldest is January (4.9 °C). Rainfall peaks in December.

Salem averages 31 frost days, 28 hot days (≥ 30 °C) and 130 rainy days per year.

Salem has warmed by +1.7 °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 38 to 24 per year over the period.

The hottest day of the period reached 46.4 °C (on 27 June 2021) and the coldest -19.3 °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

SalemOregon

coords: 44.94°, -123.04°
period: 1940–2025 · 86 yrs

CsbWarm-summer MediterraneanWarmest monthJulyColdest monthJanuaryWettest monthDecemberDriest monthJuly

Mean daily temperature

11.9°C

Average daily high

17.3°C

Average daily low

7.2°C

Annual rainfall

1,095mm

Sunshine / day

8.8h

Mean relative humidity

73%

Average peak wind

14.1km/h

Seasonal range

15.3°C

Frost days (< 0 °C)

31 d/yr

Hot days (≥ 30 °C)

28 d/yr

Rainy days (≥ 1 mm)

130 d/yr

Annual snowfall

10.8 cm

Average feels-like high

15.7 °C

Average feels-like low

5.0 °C

Average peak gust

32.6 km/h

Tropical nights (≥ 20 °C)

0 d/yr

Solar radiation

14.0 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.7 °C

since 1940

+0.2 °C per decade · r² = 0.46 · 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

46.4 °C

27 June 2021

Coldest day

-19.3 °C

31 January 1950

Wettest day

103 mm

24 November 1960

Windiest day

53.3 km/h

12 October 1962

Strongest gust

116.6 km/h

14 December 2006

Hottest feels-like

48.8 °C

28 June 2021

Coldest feels-like

-23.6 °C

31 January 1950

Snowiest day

13.1 cm

19 February 1993

Sunniest day

15.1 h

18 June 2004

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	38.8 °C22 August 2025	-6.0 °C12 February 2025	13.2 °C	987 mm	43	23
2024	40.9 °C9 July 2024	-8.8 °C14 January 2024	13.0 °C	1,284 mm	42	16
2023	41.6 °C14 August 2023	-5.6 °C25 February 2023	13.1 °C	1,018 mm	54	31
2022	39.0 °C26 July 2022	-5.3 °C22 December 2022	12.6 °C	1,027 mm	46	30
2021	46.4 °C27 June 2021	-3.9 °C23 January 2021	13.4 °C	1,031 mm	54	21
2020	38.1 °C15 August 2020	-3.3 °C4 February 2020	12.9 °C	1,009 mm	34	25
2019	37.9 °C27 August 2019	-6.8 °C26 February 2019	12.2 °C	866 mm	23	38
2018	37.4 °C12 July 2018	-5.0 °C23 February 2018	13.0 °C	858 mm	44	21
2017	40.6 °C2 August 2017	-8.9 °C13 January 2017	12.4 °C	1,265 mm	47	36
2016	39.9 °C19 August 2016	-6.8 °C17 December 2016	13.4 °C	1,219 mm	35	22
2015	41.1 °C30 July 2015	-5.5 °C30 November 2015	13.9 °C	1,002 mm	49	18
2014	37.3 °C1 July 2014	-7.6 °C7 February 2014	13.5 °C	1,152 mm	51	28
2013	36.4 °C30 June 2013	-11.2 °C8 December 2013	12.2 °C	657 mm	34	44
2012	40.9 °C4 August 2012	-3.4 °C12 January 2012	12.4 °C	1,424 mm	29	17
2011	36.5 °C10 September 2011	-7.8 °C26 February 2011	11.6 °C	958 mm	30	31
2010	39.4 °C14 August 2010	-6.7 °C24 November 2010	12.3 °C	1,273 mm	21	8
2009	43.0 °C29 July 2009	-12.4 °C9 December 2009	11.9 °C	842 mm	36	47
2008	39.3 °C14 August 2008	-8.4 °C16 December 2008	11.7 °C	897 mm	34	32
2007	39.8 °C10 July 2007	-8.9 °C13 January 2007	12.0 °C	937 mm	30	31
2006	40.9 °C23 July 2006	-6.7 °C20 February 2006	12.5 °C	1,240 mm	46	26
2005	37.0 °C27 July 2005	-5.3 °C16 December 2005	12.2 °C	956 mm	33	29
2004	40.3 °C23 July 2004	-6.4 °C6 January 2004	12.9 °C	876 mm	38	16
2003	38.5 °C29 July 2003	-9.5 °C30 December 2003	12.9 °C	1,051 mm	37	19
2002	39.0 °C13 August 2002	-2.8 °C1 March 2002	12.1 °C	1,001 mm	31	24
2001	36.7 °C9 August 2001	-3.7 °C7 February 2001	11.8 °C	937 mm	20	29
2000	35.6 °C27 June 2000	-4.9 °C19 November 2000	11.7 °C	853 mm	21	28
1999	34.5 °C13 September 1999	-2.3 °C29 December 1999	12.0 °C	1,265 mm	33	15
1998	39.8 °C28 July 1998	-10.3 °C23 December 1998	12.5 °C	1,260 mm	35	11
1997	35.7 °C12 August 1997	-4.2 °C15 January 1997	12.5 °C	1,074 mm	23	20
1996	38.6 °C13 July 1996	-7.3 °C3 February 1996	12.2 °C	1,634 mm	27	17
1995	37.4 °C17 July 1995	-7.9 °C14 February 1995	13.0 °C	1,262 mm	27	19
1994	39.1 °C21 July 1994	-5.2 °C5 December 1994	12.6 °C	1,044 mm	32	27
1993	37.7 °C3 August 1993	-10.3 °C10 January 1993	11.3 °C	892 mm	19	62
1992	39.7 °C22 June 1992	-5.3 °C5 December 1992	13.1 °C	800 mm	35	19
1991	37.4 °C23 July 1991	-6.0 °C27 January 1991	12.0 °C	836 mm	34	30
1990	38.6 °C11 August 1990	-13.2 °C21 December 1990	12.2 °C	974 mm	34	29
1989	34.5 °C24 June 1989	-18.7 °C5 February 1989	11.7 °C	810 mm	21	45
1988	39.6 °C19 July 1988	-5.0 °C2 February 1988	11.9 °C	939 mm	27	35
1987	38.2 °C31 August 1987	-4.2 °C8 January 1987	12.4 °C	885 mm	38	33
1986	36.2 °C8 August 1986	-3.0 °C10 December 1986	12.2 °C	1,046 mm	33	19
1985	38.9 °C19 July 1985	-8.2 °C4 February 1985	10.8 °C	667 mm	37	86
1984	36.6 °C24 July 1984	-7.5 °C20 December 1984	11.5 °C	1,138 mm	16	23
1983	36.3 °C28 May 1983	-11.8 °C23 December 1983	12.0 °C	1,212 mm	12	21
1982	37.3 °C18 June 1982	-8.2 °C6 January 1982	11.4 °C	1,127 mm	26	43
1981	40.9 °C9 August 1981	-3.5 °C28 November 1981	11.9 °C	1,134 mm	27	28
1980	38.6 °C21 July 1980	-10.6 °C30 January 1980	11.6 °C	1,050 mm	15	36
1979	39.8 °C16 July 1979	-11.5 °C1 January 1979	12.1 °C	975 mm	22	33
1978	39.1 °C7 August 1978	-11.1 °C30 December 1978	11.4 °C	952 mm	23	53
1977	39.5 °C16 August 1977	-8.7 °C20 November 1977	11.4 °C	1,037 mm	22	36
1976	33.8 °C15 July 1976	-5.3 °C29 November 1976	11.1 °C	831 mm	16	45
1975	36.3 °C26 July 1975	-3.0 °C21 December 1975	11.6 °C	1,216 mm	27	29
1974	36.2 °C31 July 1974	-10.1 °C9 January 1974	12.1 °C	1,232 mm	36	24
1973	38.0 °C14 July 1973	-4.7 °C7 January 1973	11.9 °C	1,303 mm	28	20
1972	39.1 °C7 August 1972	-18.6 °C8 December 1972	11.6 °C	1,235 mm	30	37
1971	38.2 °C11 August 1971	-5.7 °C1 March 1971	11.2 °C	1,426 mm	21	31
1970	36.6 °C11 August 1970	-4.1 °C10 January 1970	11.7 °C	1,330 mm	31	36
1969	35.3 °C17 June 1969	-8.0 °C29 January 1969	11.5 °C	1,095 mm	20	34
1968	36.8 °C31 July 1968	-11.9 °C30 December 1968	11.8 °C	1,548 mm	20	25
1967	37.3 °C9 August 1967	-4.2 °C13 December 1967	12.4 °C	1,013 mm	43	17
1966	36.5 °C15 June 1966	-4.3 °C19 January 1966	12.0 °C	1,170 mm	21	17
1965	38.9 °C31 July 1965	-6.3 °C16 December 1965	11.8 °C	1,000 mm	22	23
1964	35.8 °C11 July 1964	-11.7 °C17 December 1964	10.8 °C	1,322 mm	14	35
1963	34.2 °C15 June 1963	-11.1 °C12 January 1963	11.2 °C	1,125 mm	11	44
1962	35.3 °C26 July 1962	-8.0 °C26 February 1962	11.4 °C	1,106 mm	21	30
1961	39.3 °C12 July 1961	-5.5 °C11 December 1961	11.9 °C	1,488 mm	33	27
1960	38.7 °C6 July 1960	-6.8 °C27 February 1960	11.3 °C	1,457 mm	22	41
1959	36.7 °C18 July 1959	-7.7 °C4 January 1959	11.6 °C	1,168 mm	20	30
1958	39.4 °C27 July 1958	-4.3 °C27 November 1958	13.0 °C	1,161 mm	40	22
1957	33.7 °C14 September 1957	-9.6 °C27 January 1957	11.6 °C	1,241 mm	11	34
1956	38.4 °C19 July 1956	-8.1 °C2 February 1956	11.0 °C	1,212 mm	21	46
1955	36.7 °C5 September 1955	-10.6 °C15 November 1955	10.4 °C	1,416 mm	11	44
1954	29.6 °C1 August 1954	-12.3 °C20 January 1954	10.9 °C	1,275 mm	0	39
1953	33.9 °C11 August 1953	-3.1 °C19 February 1953	11.8 °C	1,495 mm	15	22
1952	38.3 °C8 July 1952	-8.1 °C28 November 1952	11.5 °C	905 mm	29	35
1951	36.5 °C29 June 1951	-7.8 °C30 January 1951	11.5 °C	1,304 mm	21	37
1950	35.5 °C19 August 1950	-19.3 °C31 January 1950	11.4 °C	1,505 mm	27	33
1949	35.8 °C14 July 1949	-8.0 °C24 January 1949	11.2 °C	992 mm	17	51
1948	35.6 °C9 September 1948	-5.9 °C24 December 1948	10.8 °C	1,349 mm	19	44
1947	31.6 °C1 September 1947	-8.5 °C15 January 1947	11.4 °C	1,153 mm	9	35
1946	39.3 °C20 July 1946	-4.9 °C30 December 1946	10.9 °C	1,164 mm	22	38
1945	37.3 °C5 August 1945	-6.3 °C19 December 1945	11.5 °C	1,186 mm	31	38
1944	39.4 °C18 July 1944	-4.3 °C25 December 1944	11.2 °C	767 mm	20	51
1943	35.2 °C24 July 1943	-13.7 °C24 January 1943	11.3 °C	728 mm	26	52
1942	38.4 °C15 August 1942	-8.5 °C5 January 1942	11.6 °C	931 mm	41	43
1941	40.2 °C16 July 1941	-3.8 °C27 December 1941	11.8 °C	786 mm	25	26
1940	37.8 °C17 August 1940	-5.4 °C14 December 1940	12.4 °C	913 mm	38	31

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

18.7 °C

+1.4 °C

Hot days (≥ 30 °C)

43 d/yr

+15

Frost days (< 0 °C)

23 d/yr

-8

Annual rainfall

987 mm

-108 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	8.8 °C	+0.6 °C	96 mm	-72 mm
Feb	9.8 °C	-0.8 °C	137 mm	+7 mm
Mar	13.7 °C	+0.8 °C	193 mm	+61 mm
Apr	18.1 °C	+2.5 °C	48 mm	-37 mm
May	20.5 °C	+1.0 °C	24 mm	-32 mm
Jun	25.5 °C	+2.4 °C	17 mm	-15 mm
Jul	30.0 °C	+2.1 °C	0 mm	-9 mm
Aug	30.2 °C	+2.5 °C	10 mm	-5 mm
Sep	26.0 °C	+1.6 °C	31 mm	-5 mm
Oct	17.4 °C	-0.3 °C	92 mm	-1 mm
Nov	12.7 °C	+1.3 °C	131 mm	-33 mm
Dec	11.5 °C	+3.2 °C	210 mm	+32 mm

The year's extremes

Hottest day

38.8 °C

22 Aug 2025

Coldest day

-6.0 °C

12 Feb 2025

Wettest day

59.0 mm

18 Dec 2025

Windiest day

40.2 km/h

17 Dec 2025

Strongest gust

99.4 km/h

17 Dec 2025

Hottest feels-like

39.5 °C

11 Aug 2025

Coldest feels-like

-10.3 °C

12 Feb 2025

Snowiest day

3.6 cm

13 Feb 2025

Sunniest day

15.1 h

14 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 Salem?

Salem has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 11.9 °C and it receives 1,095 mm of precipitation per year.

What is the hottest day ever recorded in Salem?

The hottest day measured in Salem between 1940 and 2025 was 27 June 2021, reaching 46.4 °C.

What is the coldest day in Salem?

The coldest day measured in Salem between 1940 and 2025 was 31 January 1950, at -19.3 °C.

Does it snow in Salem?

Yes. Salem gets on average 10.8 cm of snow per year and has around 31 frost days.

Has the climate of Salem warmed?

Yes: Salem warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Salem?

The wettest day measured in Salem between 1940 and 2025 was 24 November 1960, with 103 mm of rain in 24 hours.

What was the windiest day in Salem?

The windiest day measured in Salem between 1940 and 2025 was 12 October 1962, with winds reaching 53.3 km/h.

What is the warmest month in Salem?

The warmest month in Salem is July (20.2 °C on average); the coldest is January (4.9 °C).

How much does it rain in Salem?

Salem receives on average 1,095 mm of precipitation per year, spread over about 130 rainy days.

Is it sunny in Salem?

Salem 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 Salem?

The heaviest 24-hour snowfall measured in Salem between 1940 and 2025 was 19 February 1993, with 13.1 cm.

Are there tropical nights in Salem?

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

What was the most extreme apparent temperature in Salem?

In Salem, between 1940 and 2025, the highest apparent temperature reached 48.8 °C on 28 June 2021, and the lowest was -23.6 °C on 31 January 1950.

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