Oregon City climate — normals and trends

Q: What is the climate of Oregon City?

Oregon City has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 10.5 °C and it receives 1,483 mm of precipitation per year.

Q: What is the hottest day ever recorded in Oregon City?

The hottest day measured in Oregon City between 1940 and 2025 was 28 June 2021, reaching 47.0 °C.

Q: What is the coldest day in Oregon City?

The coldest day measured in Oregon City between 1940 and 2025 was 31 January 1950, at -21.5 °C.

Q: Does it snow in Oregon City?

Yes. Oregon City gets on average 94.7 cm of snow per year and has around 48 frost days.

Q: Has the climate of Oregon City warmed?

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

Q: What is the wettest day in Oregon City?

The wettest day measured in Oregon City between 1940 and 2025 was 24 November 1960, with 101 mm of rain in 24 hours.

Q: What was the windiest day in Oregon City?

The windiest day measured in Oregon City between 1940 and 2025 was 14 November 1981, with winds reaching 45.7 km/h.

Q: What is the warmest month in Oregon City?

The warmest month in Oregon City is July (18.8 °C on average); the coldest is January (3.5 °C).

Q: How much does it rain in Oregon City?

Oregon City receives on average 1,483 mm of precipitation per year, spread over about 155 rainy days.

Q: Is it sunny in Oregon City?

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

Oregon City (United States) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 10.5 °C and it receives 1,483 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 (18.8 °C on average) and the coldest is January (3.5 °C). Rainfall peaks in December.

Oregon City averages 48 frost days, 17 hot days (≥ 30 °C) and 155 rainy days per year.

Oregon City has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.

The number of frost days there went from about 60 to 36 per year over the period.

The hottest day of the period reached 47.0 °C (on 28 June 2021) and the coldest -21.5 °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

Oregon CityOregon

coords: 45.36°, -122.61°
period: 1940–2025 · 86 yrs

CsbWarm-summer MediterraneanWarmest monthJulyColdest monthJanuaryWettest monthDecemberDriest monthJuly

Mean daily temperature

10.5°C

Average daily high

15.7°C

Average daily low

5.8°C

Annual rainfall

1,483mm

Sunshine / day

8.8h

Mean relative humidity

75%

Average peak wind

12.7km/h

Seasonal range

15.3°C

Frost days (< 0 °C)

48 d/yr

Hot days (≥ 30 °C)

17 d/yr

Rainy days (≥ 1 mm)

155 d/yr

Annual snowfall

94.7 cm

Average feels-like high

14.0 °C

Average feels-like low

3.5 °C

Average peak gust

34.2 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

+1.7 °C

since 1940

+0.2 °C per decade · r² = 0.43 · 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

47.0 °C

28 June 2021

Coldest day

-21.5 °C

31 January 1950

Wettest day

101 mm

24 November 1960

Windiest day

45.7 km/h

14 November 1981

Strongest gust

121.0 km/h

14 December 2006

Hottest feels-like

45.9 °C

28 June 2021

Coldest feels-like

-26.3 °C

31 January 1950

Snowiest day

19.6 cm

31 January 1969

Sunniest day

15.2 h

19 June 2024

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	38.1 °C22 August 2025	-5.9 °C29 January 2025	11.9 °C	1,370 mm	27	32
2024	38.4 °C9 July 2024	-10.5 °C14 January 2024	11.6 °C	1,643 mm	24	25
2023	41.7 °C14 August 2023	-8.3 °C25 February 2023	11.8 °C	1,331 mm	33	50
2022	37.6 °C26 July 2022	-10.0 °C1 January 2022	11.4 °C	1,557 mm	33	49
2021	47.0 °C28 June 2021	-8.8 °C31 December 2021	11.9 °C	1,427 mm	34	35
2020	37.2 °C15 August 2020	-6.0 °C9 November 2020	11.5 °C	1,457 mm	23	46
2019	35.6 °C27 August 2019	-8.4 °C7 February 2019	10.9 °C	1,166 mm	13	53
2018	36.4 °C29 July 2018	-11.9 °C23 February 2018	11.7 °C	1,234 mm	33	32
2017	39.9 °C2 August 2017	-13.0 °C6 January 2017	11.0 °C	1,720 mm	32	48
2016	37.6 °C19 August 2016	-10.0 °C17 December 2016	11.9 °C	1,564 mm	22	28
2015	38.8 °C30 July 2015	-5.3 °C30 November 2015	12.6 °C	1,316 mm	31	26
2014	36.8 °C1 July 2014	-8.0 °C6 February 2014	12.0 °C	1,632 mm	29	39
2013	34.9 °C11 September 2013	-14.0 °C8 December 2013	10.7 °C	1,106 mm	18	53
2012	38.7 °C4 August 2012	-6.0 °C7 March 2012	11.0 °C	1,878 mm	17	34
2011	35.0 °C20 August 2011	-12.7 °C26 February 2011	10.0 °C	1,392 mm	15	57
2010	36.8 °C14 August 2010	-11.5 °C24 November 2010	10.9 °C	1,653 mm	14	13
2009	41.2 °C29 July 2009	-12.9 °C9 December 2009	10.6 °C	1,292 mm	25	66
2008	37.6 °C14 August 2008	-9.8 °C16 December 2008	10.1 °C	1,424 mm	24	50
2007	38.3 °C10 July 2007	-9.3 °C12 January 2007	10.5 °C	1,392 mm	13	48
2006	39.3 °C21 July 2006	-7.1 °C19 February 2006	11.1 °C	1,642 mm	30	36
2005	35.0 °C4 August 2005	-4.7 °C5 January 2005	10.9 °C	1,306 mm	19	43
2004	38.5 °C23 July 2004	-7.9 °C6 January 2004	11.5 °C	1,322 mm	19	23
2003	36.4 °C29 July 2003	-9.4 °C30 December 2003	11.4 °C	1,450 mm	28	24
2002	38.7 °C13 August 2002	-7.0 °C29 January 2002	10.7 °C	1,225 mm	18	42
2001	35.1 °C9 August 2001	-5.7 °C17 January 2001	10.4 °C	1,255 mm	6	45
2000	34.2 °C27 June 2000	-4.8 °C19 November 2000	10.4 °C	1,132 mm	11	43
1999	34.0 °C13 September 1999	-2.7 °C6 March 1999	10.4 °C	1,657 mm	15	30
1998	36.2 °C28 July 1998	-13.0 °C21 December 1998	11.0 °C	1,577 mm	16	27
1997	32.9 °C4 July 1997	-6.2 °C14 January 1997	11.0 °C	1,477 mm	19	38
1996	37.3 °C13 July 1996	-10.8 °C1 February 1996	10.6 °C	2,072 mm	22	32
1995	35.7 °C17 July 1995	-9.9 °C14 February 1995	11.6 °C	1,737 mm	16	24
1994	36.7 °C20 July 1994	-7.4 °C18 November 1994	11.1 °C	1,447 mm	14	49
1993	36.2 °C3 August 1993	-10.4 °C24 November 1993	10.0 °C	1,171 mm	13	71
1992	38.7 °C22 June 1992	-8.8 °C5 December 1992	11.8 °C	1,121 mm	20	36
1991	35.5 °C23 July 1991	-7.3 °C5 January 1991	10.7 °C	1,258 mm	22	51
1990	37.8 °C4 August 1990	-20.7 °C21 December 1990	10.6 °C	1,422 mm	27	51
1989	34.0 °C22 September 1989	-19.8 °C5 February 1989	10.2 °C	1,163 mm	9	58
1988	41.7 °C2 September 1988	-10.0 °C2 February 1988	10.5 °C	1,353 mm	19	56
1987	36.4 °C31 August 1987	-10.6 °C16 January 1987	11.1 °C	1,133 mm	26	49
1986	35.8 °C26 August 1986	-3.6 °C8 February 1986	11.0 °C	1,365 mm	20	26
1985	37.2 °C19 July 1985	-12.8 °C24 November 1985	9.2 °C	1,027 mm	21	107
1984	35.7 °C24 July 1984	-11.8 °C19 December 1984	10.0 °C	1,636 mm	11	43
1983	37.5 °C28 May 1983	-14.9 °C23 December 1983	10.5 °C	1,582 mm	5	34
1982	36.4 °C18 June 1982	-12.7 °C6 January 1982	10.0 °C	1,507 mm	15	65
1981	40.5 °C10 August 1981	-4.2 °C13 April 1981	10.6 °C	1,518 mm	18	37
1980	37.7 °C21 July 1980	-14.4 °C28 January 1980	10.1 °C	1,453 mm	8	47
1979	38.3 °C16 July 1979	-14.1 °C1 January 1979	10.7 °C	1,273 mm	15	43
1978	39.4 °C7 August 1978	-14.6 °C30 December 1978	10.0 °C	1,267 mm	15	64
1977	37.8 °C16 August 1977	-11.7 °C19 November 1977	10.1 °C	1,547 mm	15	59
1976	32.1 °C15 July 1976	-7.4 °C2 January 1976	9.8 °C	1,150 mm	5	59
1975	34.0 °C12 September 1975	-9.7 °C30 January 1975	10.0 °C	1,708 mm	13	60
1974	35.5 °C24 September 1974	-13.2 °C7 January 1974	10.6 °C	1,657 mm	24	37
1973	34.9 °C14 July 1973	-9.7 °C7 January 1973	10.4 °C	1,632 mm	18	38
1972	37.8 °C7 August 1972	-20.6 °C8 December 1972	10.1 °C	1,748 mm	26	57
1971	36.0 °C11 August 1971	-13.7 °C1 March 1971	9.6 °C	1,911 mm	17	61
1970	35.9 °C15 July 1970	-5.8 °C5 January 1970	10.3 °C	1,688 mm	17	51
1969	34.1 °C17 June 1969	-13.7 °C24 January 1969	10.0 °C	1,467 mm	10	55
1968	35.6 °C31 July 1968	-12.2 °C30 December 1968	10.5 °C	1,973 mm	13	40
1967	37.4 °C9 August 1967	-8.9 °C13 December 1967	11.0 °C	1,378 mm	32	46
1966	34.9 °C15 June 1966	-5.5 °C15 February 1966	10.6 °C	1,454 mm	9	39
1965	37.3 °C30 July 1965	-7.9 °C16 December 1965	10.4 °C	1,301 mm	12	50
1964	33.1 °C24 August 1964	-14.9 °C16 December 1964	9.2 °C	1,899 mm	8	61
1963	33.8 °C20 May 1963	-14.0 °C11 January 1963	9.9 °C	1,437 mm	8	60
1962	33.3 °C27 July 1962	-15.9 °C26 February 1962	10.0 °C	1,513 mm	10	52
1961	38.7 °C11 July 1961	-9.4 °C11 December 1961	10.6 °C	1,864 mm	23	40
1960	36.8 °C8 August 1960	-12.4 °C1 January 1960	9.9 °C	1,856 mm	16	57
1959	36.0 °C30 July 1959	-13.2 °C3 January 1959	10.1 °C	1,684 mm	12	46
1958	38.5 °C27 July 1958	-7.6 °C16 November 1958	11.8 °C	1,567 mm	24	29
1957	32.6 °C14 September 1957	-18.0 °C27 January 1957	10.0 °C	1,609 mm	5	57
1956	39.1 °C19 July 1956	-14.2 °C30 January 1956	9.6 °C	1,660 mm	14	64
1955	36.4 °C4 September 1955	-17.3 °C15 November 1955	8.8 °C	1,975 mm	8	73
1954	28.3 °C17 May 1954	-14.3 °C20 January 1954	9.4 °C	1,686 mm	0	65
1953	32.6 °C14 August 1953	-4.3 °C23 February 1953	10.3 °C	2,011 mm	8	30
1952	37.2 °C8 July 1952	-8.6 °C1 January 1952	10.1 °C	1,165 mm	19	66
1951	35.7 °C29 June 1951	-12.6 °C30 January 1951	10.0 °C	1,715 mm	13	58
1950	33.3 °C16 August 1950	-21.5 °C31 January 1950	9.8 °C	1,977 mm	16	48
1949	33.2 °C14 July 1949	-12.9 °C25 January 1949	9.5 °C	1,403 mm	9	71
1948	35.0 °C9 September 1948	-9.1 °C6 February 1948	9.2 °C	1,840 mm	12	77
1947	31.5 °C21 September 1947	-14.6 °C15 January 1947	9.9 °C	1,516 mm	1	52
1946	38.5 °C20 July 1946	-9.3 °C30 December 1946	9.3 °C	1,543 mm	14	70
1945	36.8 °C5 August 1945	-7.7 °C19 December 1945	9.9 °C	1,615 mm	18	57
1944	38.7 °C18 July 1944	-5.6 °C27 January 1944	10.0 °C	1,019 mm	11	64
1943	33.6 °C15 September 1943	-16.8 °C18 January 1943	10.0 °C	961 mm	18	69
1942	37.5 °C15 August 1942	-10.0 °C5 January 1942	10.3 °C	1,227 mm	22	61
1941	38.9 °C16 July 1941	-3.6 °C2 January 1941	10.7 °C	999 mm	15	40
1940	37.2 °C17 August 1940	-4.9 °C11 January 1940	11.1 °C	1,132 mm	19	49

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

17.2 °C

+1.5 °C

Hot days (≥ 30 °C)

27 d/yr

+10

Frost days (< 0 °C)

32 d/yr

-16

Annual rainfall

1370 mm

-113 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	8.2 °C	+1.2 °C	107 mm	-106 mm
Feb	8.4 °C	-0.6 °C	183 mm	+15 mm
Mar	12.3 °C	+1.0 °C	245 mm	+74 mm
Apr	16.8 °C	+2.7 °C	71 mm	-54 mm
May	18.9 °C	+1.0 °C	55 mm	-32 mm
Jun	23.5 °C	+2.4 °C	26 mm	-30 mm
Jul	28.1 °C	+2.4 °C	1 mm	-14 mm
Aug	28.0 °C	+2.3 °C	22 mm	-2 mm
Sep	24.2 °C	+1.6 °C	36 mm	-22 mm
Oct	15.5 °C	-0.7 °C	127 mm	-2 mm
Nov	11.8 °C	+1.7 °C	164 mm	-47 mm
Dec	10.1 °C	+3.0 °C	333 mm	+107 mm

The year's extremes

Hottest day

38.1 °C

22 Aug 2025

Coldest day

-5.9 °C

29 Jan 2025

Wettest day

70.5 mm

18 Dec 2025

Windiest day

37.3 km/h

17 Dec 2025

Strongest gust

106.2 km/h

17 Dec 2025

Hottest feels-like

37.2 °C

22 Aug 2025

Coldest feels-like

-10.9 °C

12 Feb 2025

Snowiest day

5.3 cm

14 Feb 2025

Sunniest day

15.2 h

15 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 Oregon City?

Oregon City has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 10.5 °C and it receives 1,483 mm of precipitation per year.

What is the hottest day ever recorded in Oregon City?

The hottest day measured in Oregon City between 1940 and 2025 was 28 June 2021, reaching 47.0 °C.

What is the coldest day in Oregon City?

The coldest day measured in Oregon City between 1940 and 2025 was 31 January 1950, at -21.5 °C.

Does it snow in Oregon City?

Yes. Oregon City gets on average 94.7 cm of snow per year and has around 48 frost days.

Has the climate of Oregon City warmed?

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

What is the wettest day in Oregon City?

The wettest day measured in Oregon City between 1940 and 2025 was 24 November 1960, with 101 mm of rain in 24 hours.

What was the windiest day in Oregon City?

The windiest day measured in Oregon City between 1940 and 2025 was 14 November 1981, with winds reaching 45.7 km/h.

What is the warmest month in Oregon City?

The warmest month in Oregon City is July (18.8 °C on average); the coldest is January (3.5 °C).

How much does it rain in Oregon City?

Oregon City receives on average 1,483 mm of precipitation per year, spread over about 155 rainy days.

Is it sunny in Oregon City?

Oregon City 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 Oregon City?

The heaviest 24-hour snowfall measured in Oregon City between 1940 and 2025 was 31 January 1969, with 19.6 cm.

Are there tropical nights in Oregon City?

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

What was the most extreme apparent temperature in Oregon City?

In Oregon City, between 1940 and 2025, the highest apparent temperature reached 45.9 °C on 28 June 2021, and the lowest was -26.3 °C on 31 January 1950.

Compare Oregon City with another city

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