STAMPEDE PASS, WASHINGTON

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Elevation: 1048 meters Latitude: 47 17N Longitude: 121 20W

WEATHER

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CURRENT CONDITIONS

Sunrise/Set

08:52 am

11:13 pm
Local Time
4:59 pm EDT
28 April, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °F ] °C

TEMPERATURE

Average Temperature

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		4.3		-3.9		-2.1		-0.4		2.2		6.3		9.7		13.5		13.6		10.8		5.7		-0.4		-3.2

Average High Temperature

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		7.7		-1.7		0.3		2.3		5.5		10.2		14		18.5		18.4		15.1		8.9		1.7		-1.1

Average Low Temperature

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		0.9		-6.1		-4.4		-3.1		-1.1		2.3		5.3		8.5		8.8		6.5		2.4		-2.5		-5.3

Highest Recorded Temperature

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		38.9		15		15		17.2		24.4		30		32.2		38.9		33.9		32.8		26.7		15		17.8

Lowest Recorded Temperature

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-29.4		-23.9		-23.3		-17.2		-8.9		-6.7		-2.2		-1.1		1.1		-3.3		-9.4		-20.6		-29.4

Average Number of Days Above 90F/32C

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.2		---		---		---		---		---		---		0.1		0.1		---		---		---		---

Average Number of Days Above 80F/26C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		11.1		---		---		---		---		0.5		1.4		4		4		1.2		---		---		---

Average Number of Days Above 70F/21C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		42.9		---		---		---		0.1		2.5		5.5		13.1		13.5		7.1		1.1		---		---

Average Number of Days Above 60F/15C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		89.8		---		---		0.2		2.4		7.5		13.4		23		23.2		15.6		4.3		0.1		---

Average Number of Days Above 50F/10C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		155.3		0.6		0.7		3.3		8.2		17.2		24		29.5		29.9		25.9		14.3		1.3		0.4

Average Number of Days Above 40F/4C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		232.9		4.3		5.9		13.8		20.3		28.1		29.9		31		31		29.9		26.2		9.4		3.2

Average Number of Days Below 70F/21C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		364.8		31		28		31		30		31		30		30.9		30.9		30		31		30		31

Average Number of Days Below 60F/15C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		360.2		31		28		31		30		31		29.7		29.3		28.8		29.4		31		30		31

Average Number of Days Below 50F/10C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		331		31		28		31		30		29.6		27.1		20.8		18.8		23.9		29.7		30		31

Average Number of Days Below 40F/4C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		245.6		30.8		27.9		30.6		27.7		22		12.8		2.3		1.5		7.7		22.2		29.1		31

Average Number of Days Below 32F/0C

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		180.9		29.4		26.4		27.2		21.9		10.3		1.4		---		---		1		9.6		24.3		29.4

Average Number of Days Below 20F/-6C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		28.1		8.4		5		1.2		0.1		---		---		---		---		---		0.3		3.2		10

Average Number of Days Below 10F/-12C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5.6		1.5		1		0.1		---		---		---		---		---		---		---		0.7		2.3

Average Number of Days Below 0F/-17C

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2		1.2		0.2		---		---		---		---		---		---		---		---		0.2		0.5

PRECIPITATION

Average Precipitation

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		2197		325		229		213		159		107		95		39		56		113		192		318		350

Average Number of Days With Precipitation

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		200		21		19		21		19		16		15		9		10		12		16		20		22

Most Reported Precipitation in a Month

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		784		773		528		496		757		349		203		151		182		387		598		784		738

Least Reported Precipitation in a Month

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		3		25		17		31		12		25		9		5		3		7		13		24		44

Most Precipitation Reported in a Day

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		304.8		198.4		118.9		78.2		304.8		145		55.1		54.6		66.3		113.5		130.6		209		171.4

Avg. No. of Days w/Precip. Above 0.1in/2.5mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		131.7		14.6		12.2		14.3		12.1		10.9		8.5		3.9		3.5		7.3		11.1		17.4		15.9

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

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		141		17		14		15		13		10		9		4		5		8		12		16		18

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

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		58		9		6		6		4		3		2		1		1		3		5		9		9

Avg. No. of Days w/Precip. Above 0.5in/13mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		49.2		7.3		4.5		4.1		3.6		2.7		2.3		0.9		0.8		2.4		4.6		8.9		7.1

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

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		23		4		3		2		1		---		1		---		---		1		2		4		5

Average Precipitable Water

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm.		1.2		0.9		0.8		0.9		1		1.3		1.5		1.8		1.8		1.6		1.3		1.1		0.9

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		1115.6		215.4		169.4		165.1		108.5		35.8		3.6		0.8		---		3.8		45		168.2		200.2

Average Snow Cover

Years on Record: 55

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		101		187		241		264		236		124		17		---		---		---		2		35		109

Most Snow Reported in a Month

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		584.5		584.5		461.5		393.2		272.3		116.6		23.9		16.3		0.2		67.8		166.1		356.9		414.8

HUMIDITY

Average Relative Humidity

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		79		87.7		81.8		80.6		77.7		75.3		76.9		72.8		72.7		71.9		78.1		84.5		87.3

DEGREE DAYS

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8630		1142		979		959		798		627		432		254		234		367		675		975		1189

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		83		---		---		---		---		2		7		30		34		10		---		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		892		---		---		1		8		49		112		260		278		151		32		1		---

SKY CONDITIONS

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.8		9.6		10.9		12.5		14.2		15.8		16.5		16.1		14.7		13		11.3		9.9		9.1

Average Total Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		68.9		85.1		73.3		79.6		74.6		70.4		68.8		46.3		46.6		48.6		66		81.4		85.4

Average Opaque Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		64.2		81.6		68.2		74.2		70		65.9		63.4		41.7		42.3		43.8		60		77.4		82.4

WIND

Average Wind Speed

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
km/h		11.4		11.7		11.7		11.3		10.8		11.3		11.7		12		11.3		10.9		10.7		11.2		11.9

SOLAR RADIATION

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.8		4.4		7.6		11.3		15.7		18.6		20.7		22.9		20.3		15.3		9.1		4.9		3.7

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6		2.7		4		5.9		7.7		9		9.5		9.2		8		6.7		4.5		3		2.3

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14		7.1		11		13.5		16.2		17.1		18		20.4		20.2		17.8		12.3		7.8		6.2

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.4		6.2		9.8		11.6		14.5		16.2		18.4		22.5		21.3		17.1		11.5		6.7		5.5

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.8		4.4		7.6		11.3		15.7		18.6		20.7		22.9		20.3		15.3		9.1		4.9		3.7

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.4		3.1		4.4		6.5		7.7		9.1		9.6		10		8.3		7.4		5.3		3.6		2.6

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17		9.7		12.5		17.6		19.1		22		20.9		23.9		22.3		21.2		15.7		10.8		7.5

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.5		8.3		11.4		16.4		19.3		24.9		24.1		27.6		24.2		21.4		15.3		9.7		6.8

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.7		3.8		5.7		9.4		13.4		14.9		17.1		19		17.9		12.5		7.4		4.1		3.3

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.7		2.4		3.4		5.6		7.5		8.8		9.3		9		7.9		6.2		4		2.6		2.1

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.4		5.9		7.8		10.8		13.5		13.5		14.9		16.9		17.6		14.1		9.7		6.2		5.3

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.7		5		6.6		8.3		10.4		10		12.2		16		17.1		12.6		8.7		5.1		4.6

NEARBY - MAP

NEARBY - LIST

Lake Keechelus, Washington (2 mi / 3 km)
Easton, Washington (6 mi / 10 km)
Lake Easton State Park, Washington (7 mi / 11 km)
Snoqualmie Pass, Washington (10 mi / 16 km)
Ronald, Washington (12 mi / 20 km)

GEOBA.SE

Stampede Pass, Washington