CHESAW, WASHINGTON

Average Temperature

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		5.5		-7.3		-4.3		0.4		6.3		10.8		13.7		17.4		16.8		12.7		6.3		-1.3		-5.6

Average High Temperature

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		12.1		-3.2		0.8		6.1		13.2		18.4		21.3		26.8		26.3		21.2		12.7		2.9		-1.8

Average Low Temperature

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-1.1		-11.8		-9.4		-5.3		-0.7		3.1		6.2		8.1		7.4		4.2		-0.2		-5.5		-9.4

Highest Recorded Temperature

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		38.9		10		11.1		20		28.3		35		33.3		38.9		36.7		34.4		26.7		13.9		10

Lowest Recorded Temperature

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-35.6		-35.6		-32.2		-31.1		-14.4		-8.9		-3.3		1.1		-2.2		-5.6		-18.3		-26.7		-29.4

Average Number of Days Above 90F/32C

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		9.2		---		---		---		---		0.2		0.6		4.4		3.6		0.5		---		---		---

Average Number of Days Below 32F/0C

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		192.5		30.4		27.5		28.3		18.7		7.2		1		---		0.1		4.6		16.6		27.4		30.6

Average Number of Days Below 0F/-17C

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		12.2		6.1		2.5		0.5		---		---		---		---		---		---		---		0.6		2.5

Average Precipitation

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		344		30		23		21		23		35		54		22		25		21		29		28		33

Average Number of Days With Precipitation

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		97		11		8		8		7		8		11		5		5		6		8		9		11

Most Reported Precipitation in a Month

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		125		90		78		42		59		125		104		82		92		101		89		69		99

Least Reported Precipitation in a Month

Years on Record: 42

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

Most Precipitation Reported in a Day

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		57.4		28.4		25.6		20.3		20.6		31.5		57.4		33.3		45.7		41.1		36.8		18		28.7

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

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		43		4		3		3		3		4		6		2		3		2		4		4		5

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

Years on Record: 42

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

Average Snowfall

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		134.1		33.3		21.1		13.7		4.6		1.5		---		---		---		0.8		6.6		19.6		33

Most Snow Reported in a Month

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		91.4		67.3		79.2		53.3		24.1		25.4		---		---		---		7.4		20.6		54.4		91.4

Heating Degree Days

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3058.3		622.8		483.3		383.9		197.8		85.6		27.2		3.3		5		52.2		204.4		422.2		570.6

Cooling Degree Days

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		60		---		---		---		---		1.7		5.6		28.9		20.6		3.3		---		---		---

Growing Degree Days

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		658.4		---		---		---		---		24.1		111.7		230.8		211.8		80		---		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.8		9.4		10.8		12.5		14.3		16		16.8		16.4		14.9		13.1		11.3		9.7		8.9

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.1		4.7		8.1		12.6		17		19.7		20.9		22.8		19.7		14.9		8.8		4.9		3.8

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.1		2.8		4.2		6.2		7.6		9		9.7		9.4		8.1		6.7		4.5		2.9		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		14.8		8.4		12.9		16.3		17.9		18.1		18.1		20.3		19.8		17.6		12.3		8.5		7.3

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.5		7.6		11.4		14.4		17.6		18.2		18.8		22.6		20.8		17.2		11.5		7.2		6.5

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.1		4.7		8.1		12.6		17		19.7		20.9		22.8		19.7		14.9		8.8		4.9		3.8

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.5		3		4.5		6.7		7.6		9.1		9.8		10.1		8.5		7.4		5.2		3.3		2.5

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.1		9.5		14.3		18.6		20.5		20.9		20.5		23.6		22.4		21.4		15.5		10.5		8

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.8		8.8		12.8		17.6		21.6		23.4		23.6		27.6		24.5		21.6		15.1		9.1		7.2

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.1		4.3		6.8		11.2		14.7		16.4		18.4		17.6		16.4		12.1		7		4.2		3.4

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.8		2.6		3.7		5.9		7.5		8.9		9.5		9.1		8		6.1		3.8		2.6		2.2

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.2		7.6		10.6		14.1		15.2		15		15.9		15.6		16.1		13.9		9.5		7.1		6.4

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.7		6.7		8.9		11.9		13.2		12.6		14.3		13.7		14.7		12.5		8.5		5.9		5.6