Weather & Climate in Milwaukie, OR

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Milwaukie experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 43°F in January while summers reach 71°F in July. The area gets 251 sunny days per year, above the national average. Annual precipitation totals 44.8 inches. Air quality is rated Good with a median AQI of 32. The city sits at an elevation of 175 feet.

Temperature

43°F Jan (6°C) 71°F Jul (21°C)

Annual Average	55.4°F
	3% above US avg
January Average	43°F (6°C)
July Average	71°F (21°C)
Sunny Days	251 days/yr

Geography

Elevation	175 ft (53 m)
Area	4.9 sq mi (12.6 km²)
Population Density	4,260/sq mi
Coordinates	45.4448°N, 122.6208°W
Timezone	America/Los_Angeles
County	Multnomah County County
Nearest Airport	Portland International (PDX) 10 miles away

Precipitation & Snow

Annual Rainfall 44.8"

18% above US avg

Wettest Month (Dec) 7.64"

Driest Month (Jul) 0.83"

Air Quality

AQI Median	32.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively High
Risk Score	98.5 / 100
Social Vulnerability	29.8 / 100
Community Resilience	95.5 / 100

Hazard Breakdown

Tornado	Relatively Low
Earthquake	Relatively High
Wildfire	Relatively Low
Flood	Relatively High
Hail	Very Low
Strong Wind	Relatively Moderate
Heat Wave	Relatively High
Winter Weather	Relatively High
Lightning	Relatively Low
Ice Storm	Relatively High
Drought	Very Low
Cold Wave	Relatively High
Landslide	Relatively Moderate
Coastal Flood	Relatively Low
Volcano	Relatively Moderate
Avalanche	Very Low

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

996 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.6.

Mar 25, 1993	4 km E of Scotts Mills, Oregon	M5.6	46 km	20 km
Jun 29, 2002	6 km ENE of Government Camp, Oregon	M4.5	74 km	5 km
Feb 14, 2011	31 km S of Morton, Washington	M4.3	98 km	4 km
Jul 14, 2008	11 km ESE of Maupin, Oregon	M4.2	135 km	16 km
Jun 6, 2021	6 km NE of Government Camp, Oregon	M3.9	73 km	4 km
Oct 1, 2004	37 km NNE of Amboy, Washington	M3.9	90 km	-1 km
Jun 25, 2004	17 km W of Packwood, Washington	M3.9	143 km	-1 km
Apr 24, 2003	3 km NW of North Portland, Oregon	M3.9	23 km	17 km
Jan 3, 2018	37 km SSE of Morton, Washington	M3.9	100 km	10 km
Feb 8, 1995	9 km ESE of Hubbard, Oregon	M3.8	35 km	24 km
Aug 3, 2006	2 km WNW of Cherry Grove, Washington	M3.8	40 km	14 km
Jun 29, 2002	7 km NE of Government Camp, Oregon	M3.8	74 km	5 km
Jun 14, 2007	12 km ESE of Maupin, Oregon	M3.8	136 km	18 km
Oct 1, 2004	36 km NNE of Amboy, Washington	M3.7	90 km	-2 km
Aug 23, 2013	24 km SSE of Mossyrock, Washington	M3.7	99 km	14 km
Jun 8, 1993	5 km ESE of Scotts Mills, Oregon	M3.7	46 km	19 km
Jan 31, 2013	3 km ENE of Amboy, Washington	M3.7	55 km	6 km
Jul 31, 2006	37 km NNE of Amboy, Washington	M3.6	90 km	-1 km
Oct 1, 2004	37 km NNE of Amboy, Washington	M3.6	90 km	-1 km
Aug 5, 2006	37 km NNE of Amboy, Washington	M3.6	90 km	-1 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

62 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 6 fatalities, 304 injuries.

Date	Rating	Distance	Path	Fatalities
Apr 5, 1972	EF3	17 km	8.7 mi	6
Dec 14, 2010	EF2	70 km	5.0 mi	0
Dec 8, 1993	EF2	32 km	6.0 mi	0
Sep 1, 2017	EF1	95 km	0.7 mi	0
Dec 10, 2015	EF1	37 km	0.8 mi	0
Oct 23, 2014	EF1	80 km	1.3 mi	0
Jun 13, 2013	EF1	51 km	0.3 mi	0
Jan 10, 2008	EF1	27 km	10.1 mi	0
Jun 21, 2003	EF1	79 km	0.3 mi	0
Oct 9, 2000	EF1	14 km	0.1 mi	0
Oct 9, 2000	EF1	33 km	0.1 mi	0
Nov 12, 1991	EF1	22 km	0.2 mi	0
Nov 12, 1991	EF1	14 km	0.2 mi	0
Jun 29, 1989	EF1	49 km	1.6 mi	0
Mar 28, 1985	EF1	85 km	0.2 mi	0
Oct 13, 1984	EF1	54 km	3.0 mi	0
Aug 16, 1978	EF1	42 km	0.2 mi	0
Dec 12, 1975	EF1	96 km	2.0 mi	0
Mar 8, 1960	EF1	78 km	1.0 mi	0
Apr 12, 1957	EF1	28 km	2.5 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

1 tsunami recorded within 500 km. Highest wave on record: 250.0 m (820 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
1980	WASHINGTON	Explosion	250.0 m	61	91 km

Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

11 volcanoes within 200 km. Closest: West Crater (64 km).

Name	Type	Elevation	Last Eruption	Distance
West Crater	Volcanic field	1,329 m (4,360 ft)	-5750	64 km
Hood	Stratovolcano	3,426 m (11,240 ft)	1866	73 km
Indian Heaven	Shield(s)	1,806 m (5,925 ft)	-6250	82 km
St. Helens	Stratovolcano	2,549 m (8,363 ft)	2008	91 km
Jefferson	Stratovolcano	3,199 m (10,495 ft)	950	107 km
Adams	Stratovolcano	3,742 m (12,277 ft)	950	122 km
Sand Mountain Field	Pyroclastic cone(s)	1,664 m (5,459 ft)	-950	130 km
Belknap	Shield(s)	2,095 m (6,873 ft)	480	143 km
Three Sisters	Complex	3,159 m (10,364 ft)	440	161 km
Rainier	Stratovolcano	4,392 m (14,409 ft)	1450	170 km
Bachelor	Stratovolcano	2,763 m (9,065 ft)	-5800	179 km

Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: LIONSHEAD (197,732 acres, 2020).

Year	Name	Acres Burned	Distance
2020	LIONSHEAD	197,732	96 km
2020	BEACHIE CREEK	194,619	68 km
2020	RIVERSIDE	138,190	47 km
2017	EAGLE CREEK	48,816	56 km
2021	BULL COMPLEX	26,233	79 km
2020	BIG HOLLOW	24,243	70 km
2020	WHITE RIVER	17,678	99 km
2013	GOVERNMENT FLATS COMPLEX	10,993	97 km
2011	DOLLAR LAKE	6,069	72 km
2014	36 PIT	5,838	43 km
2014	LOGGING UNIT FIRES	5,720	96 km
1987	ROCKHOUSE	5,011	90 km
2008	GNARL RIDGE	3,502	78 km
2011	MOTHER LODE	2,881	77 km
2001	DARK LAKE	2,724	100 km
2022	SIOUXON	2,551	68 km
2010	BULL OF THE WOODS	2,535	76 km
2017	SRZ LITTLE DEVIL	2,304	95 km
2012	HIGHWAY 141	2,080	94 km
2023	CAMP CREEK	2,056	42 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	43°F (6°C)	7.1 in
February	44°F (7°C)	5.4 in
March	47°F (8°C)	4.9 in
April	51°F (11°C)	3.6 in
May	57°F (14°C)	2.8 in
June	62°F (17°C)	2.0 in
July	71°F (21°C)	0.8 in	Warmest, Driest
August	68°F (20°C)	1.1 in
September	63°F (17°C)	2.1 in
October	54°F (12°C)	3.7 in
November	46°F (8°C)	7.1 in
December	41°F (5°C)	7.6 in	Coldest, Wettest

Milwaukie has a seasonal temperature swing of 30°F / from 41°F in December to 71°F in July. Total annual precipitation is 48.1 inches, with December being the wettest month (7.6") and July the driest (0.8").

View full profile of Milwaukie, OR →