PEERLESS, MONTANA

Average Temperature

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		5.2		-12.8		-8.7		-3.1		5.9		12.7		17.4		21		20.1		13.6		7.5		-2.1		-9.8

Average High Temperature

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		12.4		-7		-2.7		3.2		13.2		20.7		25.4		29.7		29.1		22.1		15.2		3.9		-3.8

Average Low Temperature

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-2.1		-18.8		-14.7		-9.4		-1.4		4.7		9.4		12.3		11.1		5.2		-0.2		-8.1		-15.3

Highest Recorded Temperature

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		41.1		11.1		15		23.3		33.3		38.9		37.8		41.1		40.6		39.4		30.6		23.9		12.8

Lowest Recorded Temperature

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-41.7		-41.7		-40		-35.6		-25		-13.9		-5		3.9		-3.3		-12.2		-21.7		-33.3		-40

Average Number of Days Above 90F/32C

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		25.4		---		---		---		0.1		0.8		2.9		10.2		9.6		1.8		---		---		---

Average Number of Days Below 32F/0C

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		190.3		30.6		27.8		29.1		18.9		4.7		0.4		---		0.1		4.1		16.4		27.7		30.6

Average Number of Days Below 0F/-17C

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		47.8		17		10.7		4.9		0.2		---		---		---		---		---		0.1		3.2		11.7

Average Precipitation

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		342		14		12		16		25		48		68		42		40		33		17		12		16

Average Number of Days With Precipitation

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		64		5		4		4		5		7		9		7		6		5		3		4		5

Most Reported Precipitation in a Month

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		208		54		66		75		71		139		208		78		119		118		48		37		48

Least Reported Precipitation in a Month

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		---		---		---		---		3		12		4		3		1		---		---		---

Most Precipitation Reported in a Day

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		73.7		22.4		20.1		42.4		41.4		48		73.7		43.9		52.1		50.5		33.3		22.9		26.7

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

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		37		2		2		2		3		5		6		4		4		3		2		2		2

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

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7		---		---		---		1		1		2		1		1		1		---		---		---

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

Years on Record: 40

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

Average Snowfall

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		73.9		19.8		14.2		17.5		4.1		---		---		---		---		0.2		0.8		2.5		14.7

Average Snow Cover

Years on Record: 40

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

Most Snow Reported in a Month

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		89.9		55.9		89.9		65		24.1		---		---		---		---		5.1		12.2		13.7		40.6

Heating Degree Days

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3548.3		791.7		605		492.2		216.1		63.3		6.1		---		1.7		51.7		174.4		446.1		700

Cooling Degree Days

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		235		---		---		---		0.6		9.4		33.3		96.7		82.2		12.8		---		---		---

Growing Degree Days

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1067.1		---		---		---		---		84.4		221.7		341		311.7		108.3		---		---		---

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		16.3		14.8		13.1		11.3		9.7		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		4.5		7.8		12.1		17.5		20.5		21.5		22.9		18.9		14		9		5.3		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		2.7		4.1		6.1		7.6		8.9		9.6		9.2		8		6.4		4.6		3.1		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		12.4		15.9		18.5		18.9		18.6		20.3		18.8		16.4		12.6		9.4		7.2

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.5		7.2		10.8		13.6		18.5		19.7		19.8		22.9		19.4		15.6		11.8		8		6.4

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		4.5		7.8		12.1		17.5		20.5		21.5		22.9		18.9		14		9		5.3		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		6.3		3		4.4		6.5		7.7		9.1		9.8		9.8		8.2		6.9		4.8		3.4		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		16.8		9.6		13.5		18.6		21		20.9		21.3		23.2		21.4		19.3		13.8		10.7		8.6

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.4		8.9		12		16.7		22.3		23.5		25.1		27.2		23.4		19.3		13.1		9.6		7.9

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		3.9		6.6		9.8		14.8		17.6		18.2		18.5		16.4		10.8		8.2		4.6		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		5.8		2.5		3.7		5.6		7.5		8.9		9.5		9.1		8		5.9		4.3		2.8		1.9

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		6.8		10.2		12.5		15.3		16.1		15.8		16.4		16.2		12.2		11.3		8		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		10.7		5.9		8.6		9.5		13.2		14.5		14.1		15.3		14.8		10.3		10.4		6.7		4.5