PORTLAND, OREGON

Home > North America > United States > Oregon
Elevation: 6 meters Latitude: 45 36N Longitude: 122 36W

WEATHER

Monthly - Summary

Nearby

Forecast

Monthly - All Data

Climate Summary

Daily Averages

Hourly Data

CURRENT CONDITIONS

PRINT THIS DATA

MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °F ] °C

TEMPERATURE

Average Temperature

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		12		4		6		8		11		14		17		20		20		17		12		7		5

Average High Temperature

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		16		7		10		13		16		20		22		26		26		23		17		11		7

Average Low Temperature

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		7		1		2		3		5		8		11		13		13		11		7		4		2

Highest Recorded Temperature

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		41		18		21		28		33		37		38		41		41		40		33		22		18

Lowest Recorded Temperature

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-19		-18		-19		-7		-1		-1		3		6		6		1		-3		-10		-14

Average Number of Days Above 90F/32C

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		11		---		---		---		---		---		1		4		4		2		---		---		---

Average Number of Days Above 65F/18C

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		158		---		---		4		9		18		25		31		31		26		13		1		---

Average Number of Days Below 32F/0C

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		37		12		7		4		1		---		---		---		---		---		1		4		9

PRECIPITATION

Average Precipitation

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		950		130		100		90		60		50		40		10		20		40		70		130		160

PRECIPITATION - RAIN

Average Number of Rainy Days

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		151		18		16		17		14		12		9		4		5		7		12		18		19

Average Number of Days With Thunderstorms

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7		---		---		1		1		1		1		1		1		1		---		---		---

Most Rain Reported in a Month

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1400		320		280		200		150		110		100		60		110		130		210		360		440

Least Recorded Rainfall

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		570		---		10		20		10		---		---		---		---		---		---		10		30

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		16		8		2		1		---		---		---		---		---		---		---		1		3

HUMIDITY

Average Morning Relative Humidity

Years on Record: 47

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		84		85		86		86		84		80		78		77		81		87		90		88		87

Average Evening Relative Humidity

Years on Record: 47

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		59		75		67		60		55		53		51		45		45		48		61		74		78

Average Dew Point

Years on Record: 47

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		6		---		2		3		5		7		10		11		12		10		8		4		2

DEGREE DAYS

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2512.2		437.2		332.8		305		233.3		138.3		50.6		15.6		19.4		56.7		181.1		315		427.2

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		206.1		---		---		---		---		---		25.6		70.6		81.7		28.3		---		---		---

Growing Degree Days

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1327.2		---		---		---		33.3		137.8		216.7		310		310		233.3		86.1		---		---

VISIBILITY

Average Number of Days With Fog

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		123		15		12		9		7		5		4		3		5		12		18		17		16

Average Number of Clear Days

Years on Record: 45

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		68		3		3		3		3		5		6		13		11		10		6		3		2

Average Possibility of Sunshine

Years on Record: 44

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		48		28		38		47		52		57		56		69		66		62		44		28		23

Average Number of Cloudy Days

Years on Record: 45

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		223		24		21		23		21		19		16		10		10		12		18		23		26

Average Number of Partly Cloudy Days

Years on Record: 45

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		74		4		4		5		6		7		8		8		10		8		7		4		3

WIND

Average Wind Speed

Years on Record: 47

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
km/h		16		19		17		16		12		12		12		14		12		12		14		17		19

NEARBY - MAP

NEARBY - LIST

Ellsworth South, Washington (0 mi / 0 km)
Marquam Hill, Oregon (0 mi / 0 km)
Vancouver - Airport, Washington (3 mi / 5 km)
Vancouver, Washington (4 mi / 7 km)
East Portland, Oregon (5 mi / 9 km)

GEOBA.SE

Portland, Oregon

WEATHER FORECAST