CHEWELAH, WASHINGTON

Average Temperature

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		7.9		-4.1		-0.9		3.8		8.3		12.7		16.2		19.4		18.7		14.1		7.9		1.5		-2.6

Average High Temperature

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		15.4		0.2		4.4		10.2		16.1		21.2		24.9		30.3		30.1		24.6		16.2		6		1.1

Average Low Temperature

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		0.4		-8.4		-6.3		-2.7		0.5		4.1		7.3		8.6		7.4		3.6		-0.4		-3		-6.3

Highest Recorded Temperature

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		43.3		13.9		16.7		23.9		32.8		37.8		41.1		41.7		43.3		40		33.3		20.6		14.4

Lowest Recorded Temperature

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-38.9		-38.9		-38.9		-24.4		-11.1		-8.9		-3.3		-0.6		-2.2		-11.1		-16.7		-28.3		-36.1

Average Number of Days Above 100F/38C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.6		---		---		---		---		---		0.1		0.9		0.6		0.1		---		---		---

Average Number of Days Above 90F/32C

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		31.3		---		---		---		---		1		2.9		12.5		11.9		3		---		---		---

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		72.4		---		---		---		0.3		4.8		10.2		22.7		22.8		10.9		0.7		---		---

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		124.9		---		---		0.5		4.7		14		22.4		28.9		29.4		20.8		4.3		---		---

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		176.2		---		0.1		4.4		13.7		25.3		28.7		30.9		31		27.8		14.2		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		229.6		0.1		2.5		17.1		27.3		30.8		30		31		31		29.8		25.4		4.4		0.1

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		283.1		5.3		15.7		28.7		29.8		31		30		31		31		30		30.4		16.6		3.5

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		365		31		28		31		30		31		30		31		31		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		364.1		31		28		31		30		31		29.9		30.5		30.8		30		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		336.5		31		28		31		30		29.8		24		19.5		23		28.4		30.9		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		254.1		31		28		30.6		26.8		17.7		5.9		1.9		4.5		19.3		28.4		29.1		31

Average Number of Days Below 32F/0C

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		175.8		29.2		25.5		24.6		15		5.4		0.7		0.1		0.6		5.9		17.8		22.9		28

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		54.9		12.7		11.2		4.8		0.5		---		---		---		---		0.1		3.4		6.8		15.5

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		19.2		6.2		4		0.5		---		---		---		---		---		---		0.3		1.7		6.6

Average Number of Days Below 0F/-17C

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8.8		4.4		1.9		0.1		---		---		---		---		---		---		---		0.4		2

Average Precipitation

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		512		59		44		45		37		45		42		21		20		27		37		61		74

Average Number of Days With Precipitation

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		109		12		9		10		9		10		9		5		5		6		9		12		13

Most Reported Precipitation in a Month

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		211		133		125		108		97		163		116		120		96		159		129		211		167

Least Reported Precipitation in a Month

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		8		---		5		3		2		8		---		---		---		---		1		13

Most Precipitation Reported in a Day

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		61.2		36.8		38.1		61.2		33		59.7		40.6		43.2		36.6		47.5		38.9		49.8		51.3

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		59.2		6.9		5.1		5.9		4.6		5.5		5.5		3.1		1.9		2.4		3.9		7.3		7.1

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

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		59		7		5		6		4		5		5		2		2		3		5		7		8

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

Years on Record: 86

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

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		9.8		1.2		0.8		0.8		0.7		0.8		1		0.7		0.4		0.3		0.4		1.1		1.6

Average Snowfall

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		105.9		36.3		16		6.1		0.5		---		---		---		---		---		0.2		11.9		34.8

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		18.6		6		2.7		1		0.1		---		---		---		---		---		---		2.1		6.7

Average Snow Cover

Years on Record: 51

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		2		20		10		2		---		---		---		---		---		---		---		2		10

Most Snow Reported in a Month

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		160.8		160.8		100.3		35.6		14		---		---		---		---		---		6.3		88.9		107.4

Avg. No. of Days w/Snow Above 1in/2.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		13.6		4.6		1.7		0.6		0.1		---		---		---		---		---		---		1.4		5.2

Avg. No. of Days w/Snow Above 3in/7.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4.4		1.5		0.6		---		---		---		---		---		---		---		---		0.4		1.9

Avg. No. of Days w/Snow Above 5in/12.7cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.5		0.4		0.3		---		---		---		---		---		---		---		---		0.3		0.5

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7242		1193		962		808		573		349		162		51		60		257		635		948		1243

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		234		---		---		---		---		5		27		106		86		9		---		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1766		---		---		2		28		157		317		519		491		222		29		1		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.8		9.5		10.8		12.5		14.3		15.9		16.7		16.2		14.8		13		11.3		9.8		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		13.5		4.8		8.1		12.5		16.7		19.6		21.5		24		21		15.5		9.3		4.9		3.9

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		2.8		4.2		6.2		7.6		9		9.5		9.5		8.2		6.8		4.6		2.9		2.4

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.9		8.1		12.6		15.6		17.5		18		18.6		21.4		21		18.2		12.8		8.1		7.1

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.7		7.3		11.1		13.9		16.7		18		19.8		24		22.5		17.8		12.1		6.9		6.3

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.5		4.8		8.1		12.5		16.7		19.6		21.5		24		21		15.5		9.3		4.9		3.9

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.7		3.1		4.5		6.6		7.7		9.1		9.7		11.3		9		7.6		5.3		3.3		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		17.5		9.2		14		18.7		19.9		21.5		21.2		25.2		23.4		22.1		16.3		10.4		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		17.9		8.4		12.4		17.1		20.6		24.2		24.8		28.1		25.2		22.3		16.1		8.9		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		10.8		4.3		6.1		11.2		14		16.1		18.3		16.1		17.1		11.6		7.3		3.9		3.2

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		3.5		5.9		7.5		8.8		9.4		9.1		7.9		6		4		2.5		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		11.7		7.2		9.1		14.1		14.3		14.7		15.9		14.3		16.9		13		9.8		5.9		5.5

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		6.4		7.5		11.7		11.7		11.9		14.2		11.3		16		11.2		8.8		4.8		4.6