OPHEIM, MONTANA

Average Temperature

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		3.6		-13.8		-11.7		-5.3		4.1		10.6		14.9		19.8		18.4		12.3		5.5		-3.5		-8.8

Average High Temperature

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9.8		-8.6		-6.4		0.1		10.5		17.6		21.6		27.6		26.1		19.5		11.8		1.8		-3.7

Average Low Temperature

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-2.7		-19.1		-16.9		-10.6		-2.4		3.7		8.3		12.1		10.6		5.1		-1		-8.8		-13.9

Highest Recorded Temperature

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		38.9		8.9		17.8		17.8		33.9		34.4		37.2		38.9		36.7		36.7		28.9		19.4		16.7

Lowest Recorded Temperature

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-40.6		-38.9		-40.6		-31.7		-26.7		-7.8		-1.7		1.7		-5.6		-12.8		-25		-27.8		-37.8

Average Number of Days Above 90F/32C

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		12.9		---		---		---		0.1		0.3		1.3		6.2		4.6		0.4		---		---		---

Average Number of Days Below 32F/0C

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		199.5		30.8		27.7		30.2		20.9		7.1		0.6		---		0.2		5.1		17.4		28.8		30.6

Average Number of Days Below 0F/-17C

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		48.8		16.1		12.9		5.4		0.6		---		---		---		---		---		0.1		4.2		9.4

Average Precipitation

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		300		9		7		12		18		38		74		45		43		27		13		6		9

Average Number of Days With Precipitation

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		66		5		4		5		4		8		10		7		7		5		4		3		4

Most Reported Precipitation in a Month

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		184		33		22		41		55		84		184		144		158		59		45		15		34

Least Reported Precipitation in a Month

Years on Record: 29

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

Most Precipitation Reported in a Day

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		68.8		18.8		18.3		16.3		30		45.5		68.8		48.8		39.1		29.2		25.6		8.4		17.5

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

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		33		1		1		2		2		4		7		5		4		3		2		1		1

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

Years on Record: 29

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

Average Number of Rainy Days

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		28		1		1		1		2		3		5		3		4		2		1		1		1

Average Snowfall

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		82.3		14.7		12.2		14.5		7.4		3		1.3		---		---		1.5		6.3		8.6		12.7

Most Snow Reported in a Month

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		59.2		41.9		59.2		47		31.8		22.9		30.5		---		---		11.4		24.1		25.4		38.9

Heating Degree Days

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3932.2		823.3		690.6		559.4		264.4		102.8		24.4		0.6		5		72.2		232.2		488.3		668.9

Cooling Degree Days

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		155.6		---		---		---		---		5.6		16.7		73.3		50.6		8.9		0.6		---		---

Growing Degree Days

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		800.4		---		---		---		---		18.9		148.3		304.8		260.1		68.3		---		---		---

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		14.9		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		4.5		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		15.8		18.5		18.9		18.6		20.3		18.8		16.4		12.6		9.3		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		18.3		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		15.2		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