MONTROSE, SOUTH DAKOTA

Average Temperature

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		44.9		11.8		18.6		31.1		46.1		57.7		68.3		72.3		71		60.2		50		33.1		18.5

Average High Temperature

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		57		23.1		29.8		42.4		58.9		71.6		79.7		84.7		84.3		72.4		63.4		44.6		28.6

Average Low Temperature

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		32.7		0.5		7.3		19.8		33.5		43.8		55.1		60		57.8		47.9		36.5		21.6		8.3

Highest Recorded Temperature

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		106		51		55		85		92		100		98		103		106		101		92		71		57

Lowest Recorded Temperature

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-38		-38		-35		-16		12		14		34		34		35		25		10		-20		-26

Average Number of Days Above 90F/32C

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		21.8		---		---		---		0.1		1.6		3.2		7.4		7.9		1.4		0.1		---		---

Average Number of Days Below 32F/0C

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		170.2		30.2		27.5		26.4		13.7		4.1		---		---		---		1.6		10.9		25.7		30.1

Average Number of Days Below 0F/-17C

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		35.2		14.4		9		2.9		---		---		---		---		---		---		---		0.9		8

Average Precipitation

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		24.6		0.5		0.6		1.3		2.6		3.1		4.2		3.1		2.7		2.9		2		1		0.7

Average Number of Days With Precipitation

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		70		4		4		5		7		8		9		7		6		7		5		4		4

Most Reported Precipitation in a Month

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		8.7		1.9		1.8		3.9		6.2		6.6		8.7		8.1		7.2		6.4		6.6		2.8		2.5

Least Reported Precipitation in a Month

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		---		---		---		0.1		0.2		0.5		1		0.1		0.7		0.9		---		---		---

Most Precipitation Reported in a Day

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		4.4		1.6		1		2		3.7		2.9		4.4		2.9		2.3		2.3		2.4		1.6		0.8

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		50.8		1.9		2.2		3.7		5.3		6.4		7.3		5.5		5.1		5.2		3.7		2.7		1.8

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

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		47		2		2		3		5		6		7		5		5		5		3		2		2

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

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		16		---		---		1		2		2		3		2		2		2		1		1		---

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		18.9		0.4		0.3		1.1		1.9		2.4		2.9		2.7		2.2		2.3		1.5		0.8		0.4

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

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6		---		---		---		---		1		1		1		1		1		1		---		---

Average Snowfall

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		26.1		5		5.5		4.1		1.3		---		---		---		---		0.1		0.2		2.3		7.6

Most Snow Reported in a Month

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		28.5		14.5		20.4		13.4		9.3		---		---		---		---		1.6		3.5		12.5		28.5

Heating Degree Days

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5544		1340		1031		746		290		85		3		1		1		48		209		657		1133

Cooling Degree Days

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		696		---		---		1		1		37		141		245		214		53		4		---		---

Growing Degree Days

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2436		---		---		---		---		238.7		549		691.3		651		306		---		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		9.9		11		12.5		14		15.3		16		15.6		14.4		12.9		11.4		10.2		9.5

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.8		1.7		2.5		3.5		4.7		5.6		6.1		6.3		5.5		4.2		2.9		1.8		1.5

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.4		0.6		0.9		1.4		1.8		2.2		2.4		2.2		1.9		1.5		1		0.7		0.6

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.4		3.3		3.9		4.4		4.9		5.1		5.3		5.6		5.4		4.9		4.2		3.3		2.9

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.7		3.4		3.9		4.3		5		5.4		5.9		6.6		6		5.2		4.4		3.4		3.2

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.8		1.7		2.5		3.5		4.7		5.6		6.1		6.3		5.5		4.2		2.9		1.8		1.5

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.5		0.7		1		1.4		1.9		2.3		2.5		2.4		2		1.6		1.1		0.7		0.6

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.3		3.8		4.6		5.7		6.2		5.9		6.1		6		6		5.9		5.2		4.3		3.5

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.1		4		5		6		7.4		7.2		7.8		7.5		7.1		6.8		5.8		4.9		4.2

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		1.5		2.1		2.5		3.6		4.6		5.2		4.8		4.9		3.3		2.2		1.5		1.2

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.3		0.6		0.9		1.2		1.6		2		2.1		2.1		1.7		1.3		0.9		0.6		0.5

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.5		2.8		3.1		3		3.7		4.2		4.5		4.3		4.8		3.6		2.9		2.6		2.1

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.1		2.7		2.8		2.3		3		3.6		4.3		3.8		4.8		3.2		2.5		2.4		2.1