OLYMPIA, WASHINGTON

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Elevation: 58 meters Latitude: 46 58N Longitude: 122 54W

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

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TEMPERATURE

Average Temperature

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		10.6		3.5		4.9		6.9		9.8		12.9		15.6		17.9		17.8		14.9		11.1		7.1		4.7

Average High Temperature

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		16.2		6.8		9		12.1		16.2		19.9		22.7		25.8		25.6		21.8		16.3		10.8		7.9

Average Low Temperature

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		4.9		0.2		0.9		1.7		3.4		5.9		8.4		10		10		8		5.8		3.3		1.5

Highest Recorded Temperature

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		40		23.3		21.7		25.6		32.2		35		38.3		40		37.8		35		29.4		22.8		21.1

Lowest Recorded Temperature

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-16.7		-16.7		-15		-11.1		-6.1		-2.2		0.6		---		1.7		-1.7		-5		-15.6		-13.9

Average Number of Days Above 90F/32C

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6.7		---		---		---		---		0.2		1		3		2.2		0.2		---		---		---

Average Number of Days Above 65F/18C

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		140		---		---		2		6		15		23		30		30		25		8		---		---

Average Number of Days Below 32F/0C

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		62.5		14.6		12.8		10.5		5.1		0.8		---		---		---		0.2		1.9		6.1		10.6

Average Number of Days Below 5F/-15C

Years on Record: 48

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

Average Number of Days Below 0F/-17C

Years on Record: 61

ANNUAL

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PRECIPITATION

Average Precipitation

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1307		198		171		130		77		53		40		18		18		56		115		210		221

Average Number of Days With Precipitation

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		149		19		16		17		13		10		8		4		4		8		13		18		19

Most Reported Precipitation in a Month

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		689		430		324		326		189		107		165		60		82		133		252		506		689

Least Reported Precipitation in a Month

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		55		21		25		9		4		---		---		---		2		7		18		52

Most Precipitation Reported in a Day

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		114		114		89.4		102.9		63.8		55.9		61		25.9		26.7		48.3		82.5		95.8		93.2

Avg. No. of Days w/Precip. Above 0.2in/5mm

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		102		14		12		11		8		6		4		2		2		5		9		14		15

Avg. # of Days w/Precip. Above 0.4in/10mm

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		33		5		5		3		2		1		1		---		---		1		3		6		6

Avg. No. of Days w/Precip. Above 1in/25mm

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10		2		2		1		---		---		---		---		---		---		1		2		2

PRECIPITATION - RAIN

Average Number of Rainy Days

Years on Record: 52

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		162		20		17		18		15		11		9		5		6		8		14		19		21

Average Number of Days With Thunderstorms

Years on Record: 47

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5		---		---		---		1		1		---		1		1		1		---		---		---

Most Rain Reported in a Month

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1690		500		330		250		190		140		90		70		130		190		250		390		360

Least Recorded Rainfall

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		750		---		---		10		10		---		---		---		---		---		10		30		60

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		29.7		15.2		6.3		1.3		---		---		---		---		---		---		---		3.6		3.3

Most Snow Reported in a Month

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		72.4		72.4		48.3		15.2		2.5		---		---		---		---		---		---		43.2		19.1

HUMIDITY

Average Morning Relative Humidity

Years on Record: 44

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		89		91		91		91		88		83		82		83		87		92		94		92		92

Average Evening Relative Humidity

Years on Record: 44

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		63		80		71		61		55		52		53		49		50		54		68		79		84

Average Dew Point

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		6		1		2		2		3		6		9		11		11		10		7		3		2

DEGREE DAYS

Heating Degree Days

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1325.6		287.8		221.7		183.9		97.8		34.4		5		0.6		---		8.3		66.1		171.1		248.9

Cooling Degree Days

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		63.9		---		---		---		---		2.2		8.3		27.8		22.2		3.3		---		---		---

Growing Degree Days

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		924.7		---		---		---		---		89.6		166.7		244.6		241.1		148.3		34.4		---		---

VISIBILITY

Average Number of Days With Fog

Years on Record: 47

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		225		25		21		20		16		11		9		10		15		21		26		25		26

Average Number of Clear Days

Years on Record: 52

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		52		2		2		2		3		4		5		10		9		8		3		2		2

Average Number of Cloudy Days

Years on Record: 52

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		229		25		22		22		20		18		17		11		12		13		20		23		26

Average Number of Partly Cloudy Days

Years on Record: 52

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		84		4		4		7		7		9		8		10		10		9		8		5		3

WIND

Average Wind Speed

Years on Record: 43

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

NEARBY - MAP

NEARBY - LIST

East Olympia, Washington (0 mi / 0 km)
Tumwater, Washington (0 mi / 0 km)
Tillicum, Washington (16 mi / 27 km)
Centralia, Washington (17 mi / 28 km)
Oakville, Washington (17 mi / 28 km)

GEOBA.SE

Olympia, Washington

WEATHER FORECAST