GLENDIVE, MONTANA

Average Temperature

Years on Record: 66

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		44		14		17		29		46		57		66		73		71		59		47		31		20

Average High Temperature

Years on Record: 66

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		58		25		29		41		60		71		80		89		87		75		62		43		31

Average Low Temperature

Years on Record: 67

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		31		3		5		17		33		43		52		58		55		44		33		20		10

Highest Recorded Temperature

Years on Record: 69

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		117		63		73		85		96		104		109		117		113		104		95		76		72

Lowest Recorded Temperature

Years on Record: 68

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-50		-48		-50		-34		-6		16		29		36		32		16		-13		-26		-40

Average Number of Days Above 90F/32C

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		19.2		---		---		---		0.1		0.3		2.1		7.3		7.6		1.7		0.2		---		---

Average Number of Days Below 32F/0C

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		198.3		30.3		27.8		28.8		21.8		8.1		0.5		0.1		0.6		5		16.3		28.2		30.8

Average Number of Days Below 0F/-17C

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		48.2		16.5		11		5.5		0.2		---		---		---		---		---		---		2.3		12.7

Average Precipitation

Years on Record: 70

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		14		0.5		0.4		0.8		1.1		2		3.3		1.8		1.4		1.2		0.8		0.5		0.5

Average Number of Days With Precipitation

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		70		4		5		5		6		8		11		7		6		7		4		3		4

Most Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		5.7		0.7		0.9		1.3		3		4.5		5.7		5.2		3.8		5.3		3.9		1		0.6

Least Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		---		---		---		---		---		0.2		0.4		---		---		---		---		---		---

Most Precipitation Reported in a Day

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		3		0.5		0.6		1.2		1.2		3		2.3		2		2.2		1.1		0.9		0.4		0.2

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

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		34		1		2		1		3		4		7		5		4		3		2		1		1

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

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8		---		---		---		1		2		2		1		1		1		---		---		---

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

Years on Record: 61

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

Average Number of Rainy Days

Years on Record: 70

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		33.7		1.6		1.5		2.2		3		4.8		6		3.8		3.1		2.5		2		1.6		1.6

Average Snowfall

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		28		6.3		6.3		3.7		3.5		1.7		---		---		---		---		0.1		3.2		3.2

Most Snow Reported in a Month

Years on Record: 61

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		13		13		12.7		8		11		10		---		---		---		---		0.5		11		9.1

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8714		1613		1240		1053		666		354		137		51		83		286		647		1109		1475

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		449		---		---		---		---		11		82		160		168		28		---		---		---

Growing Degree Days

Years on Record: 66

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2331		---		---		---		---		217		480		713		651		270		---		---		---

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		15.7		16.5		16.1		14.7		13		11.3		9.9		9.2

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.9		1.4		2.4		3.5		4.9		5.9		6.3		6.7		5.6		4.1		2.7		1.6		1.2

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		0.8		1.2		1.7		2.1		2.5		2.6		2.6		2.2		1.8		1.3		0.9		0.7

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.3		2.5		3.7		4.4		5.1		5.4		5.5		5.9		5.6		4.8		3.7		2.8		2.2

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.3		2.2		3.3		3.9		5		5.7		6		6.7		5.9		4.6		3.5		2.4		1.9

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.9		1.4		2.4		3.5		4.9		5.9		6.3		6.7		5.6		4.1		2.7		1.6		1.2

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		1.3		1.8		2.1		2.5		2.7		2.7		2.3		2		1.5		1		0.8

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.9		3.1		4		5		5.9		6.1		6.2		6.5		6.1		5.5		4.3		3.1		2.6

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.1		2.7		3.7		4.7		6.2		6.9		7.4		7.6		6.6		5.4		4.2		2.9		2.4

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		1.9		2.8		4.1		4.4		5.2		4.8		4.9		3.1		2.3		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		1		1.6		2.1		2.4		2.6		2.5		2.2		1.7		1.2		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		3.3		1.9		2.8		3.4		4.2		4		4.5		4.3		4.9		3.4		3.1		1.8		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		2.8		1.6		2.4		2.6		3.6		3.2		4.1		3.7		4.7		2.9		2.8		1.4		1.2