SNOQUALMIE PASS, WASHINGTON

Average Temperature

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		42		26		30		34		39		45		51		58		57		53		44		33		28

Average High Temperature

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		51		31.9		37		42.4		49.3		57.2		62.9		70.4		69.6		64.6		53.9		39.3		33.4

Average Low Temperature

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		33.2		21.1		23.6		26.1		30.4		34.5		40.4		46		46.2		41.7		35.6		28.2		24.1

Highest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		82.8		52.9		55.4		58.9		63		69.1		73.2		82.8		80.2		76.6		66		56.5		49.8

Lowest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		24.5		25.9		24.5		31.4		33.5		40.3		44.5		49.9		48.5		43.2		38		26.5		25.8

Average Number of Days Above 90F/32C

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.2		---		---		---		---		---		0.1		0.7		0.3		0.1		---		---		---

Average Number of Days Below 32F/0C

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		184.2		29.4		26.8		28.3		22		10.4		1		0.1		0.1		2.4		10.9		23.7		29.3

Average Number of Days Below 0F/-17C

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.7		1.4		0.6		---		---		---		---		---		---		---		---		0.1		0.6

Average Precipitation

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		104.8		15.9		12.4		11.2		6.4		4.3		4		1.6		2.2		4.8		9.7		14.9		17.5

Average Number of Days With Precipitation

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		164		20		17		18		14		12		10		5		7		9		14		17		21

Most Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		18.2		16.2		12.8		12.3		8		7		5.5		4.3		4.6		6		12.4		18.2		17.9

Least Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		0.1		1.1		0.4		1.7		1.5		1.5		0.5		0.2		0.2		0.1		0.6		1.9		3.1

Most Precipitation Reported in a Day

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		6.7		4.4		6.3		5.1		3		2.1		2.9		1.8		5		5		6.7		6.1		5.6

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

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		134		17		15		15		11		9		7		3		5		7		11		15		19

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

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		69		11		8		8		4		3		3		1		1		3		6		9		12

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

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		31		5		4		3		2		1		1		---		---		1		3		5		6

Average Snowfall

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		420.1		104.4		75.3		69.6		25.8		5.5		0.3		0.1		---		0.2		7.4		44.6		86.9

Average Snow Cover

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		34		70		91		96		76		32		2		---		---		---		---		10		37

Most Snow Reported in a Month

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		265		265		190.5		222		87.4		30.3		5		3		---		5		44		131		196.7

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5393		794		650		641		500		347		204		96		89		204		440		634		794

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		101		---		---		---		---		---		8		37		46		10		---		---		---

Growing Degree Days

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		585		---		---		---		---		---		30		248		217		90		---		---		---

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		16.6		16.1		14.7		13		11.3		9.9		9.1

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.6		1.2		2.1		3.1		4.4		5.2		5.8		6.4		5.6		4.3		2.5		1.4		1

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.7		0.7		1.1		1.7		2.1		2.5		2.6		2.6		2.2		1.9		1.3		0.8		0.6

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.9		2		3.1		3.8		4.5		4.8		5		5.7		5.6		4.9		3.4		2.2		1.7

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.7		1.7		2.7		3.2		4		4.5		5.1		6.3		5.9		4.8		3.2		1.9		1.5

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.6		1.2		2.1		3.1		4.4		5.2		5.8		6.4		5.6		4.3		2.5		1.4		1

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.8		0.9		1.2		1.8		2.2		2.5		2.7		2.8		2.3		2.1		1.5		1		0.7

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.7		2.7		3.5		4.9		5.3		6.1		5.8		6.6		6.2		5.9		4.4		3		2.1

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.9		2.3		3.2		4.6		5.4		6.9		6.7		7.7		6.7		5.9		4.3		2.7		1.9

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3		1.1		1.6		2.6		3.7		4.1		4.8		5.3		5		3.5		2.1		1.2		0.9

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		0.7		0.9		1.6		2.1		2.4		2.6		2.5		2.2		1.7		1.1		0.7		0.6

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.2		1.6		2.2		3		3.8		3.8		4.1		4.7		4.9		3.9		2.7		1.7		1.5

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.7		1.4		1.8		2.3		2.9		2.8		3.4		4.5		4.8		3.5		2.4		1.4		1.3