GREGORY, SOUTH DAKOTA

Average Temperature

Years on Record: 105

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9		-6.3		-3.9		1.4		8.5		14.7		20.2		23.9		23		17.6		10.7		2.1		-4

Average High Temperature

Years on Record: 105

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		16.2		0.1		2.7		8.2		16		22.2		27.5		31.8		30.9		25.7		18.7		8.9		2.3

Average Low Temperature

Years on Record: 105

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		1.7		-12.8		-10.7		-5.4		1.1		7.2		12.9		16.2		15.1		9.5		2.7		-4.7		-10.2

Highest Recorded Temperature

Years on Record: 105

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		45.6		21.7		24.4		32.8		36.7		39.4		41.7		45.6		45		40.6		36.1		29.4		26.1

Lowest Recorded Temperature

Years on Record: 105

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-37.8		-33.9		-33.3		-31.7		-20		-8.9		---		3.3		0.6		-6.7		-13.9		-31.1		-37.8

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		1.8		---		---		---		---		---		0.1		1.1		0.5		---		---		---		---

Average Number of Days Above 90F/32C

Years on Record: 105

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		41.6		---		---		---		0.2		1.3		5.9		15		13.4		5		0.6		---		---

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		81.7		---		---		0.1		1.7		4.9		14.4		24.1		22.1		11.7		2.5		0.1		---

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		139.7		---		0.1		1.6		6.2		15.4		25.5		30		29.7		21.1		9.1		1.1		---

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		187.8		0.5		1.7		6.2		13.7		24.5		29.3		30.9		30.8		27.2		17.3		5.2		0.5

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		235.8		3.3		5.4		13.3		21.9		29.6		29.9		31		31		29.6		25.1		12.1		3.4

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		280		9.6		11.6		20		26.8		31		30		31		31		30		29.5		19.3		10.3

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		360.4		31		28		31		30		31		29.3		28.5		29.8		29.9		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		315.7		31		28		31		29.9		29.8		21.4		11.8		14.7		26.1		30.9		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		256.9		31		28		31		28.6		21.6		6.3		1		2.8		16.2		29.6		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		205.2		31		28		30.1		22		8.1		0.5		---		0.1		4.7		21		28.6		31

Average Number of Days Below 32F/0C

Years on Record: 105

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		164		30.2		27.1		25.7		13.2		2.5		---		---		---		1.1		9.9		24.4		29.9

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		89.1		23.4		18.4		10.9		2.2		---		---		---		---		---		1.6		11.2		21.3

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		44.3		14.6		10.2		3.9		0.2		---		---		---		---		---		0.2		3.6		11.7

Average Number of Days Below 0F/-17C

Years on Record: 105

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		22.8		9.1		5.8		1.7		---		---		---		---		---		---		---		1		5.3

Average Precipitation

Years on Record: 105

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		589		13		16		37		67		87		102		70		62		55		43		23		14

Average Number of Days With Precipitation

Years on Record: 105

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		75		4		4		6		8		10		10		7		7		6		5		4		4

Most Reported Precipitation in a Month

Years on Record: 105

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		306		53		76		169		208		202		306		220		188		215		174		92		57

Least Reported Precipitation in a Month

Years on Record: 105

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		---		---		2		---		6		27		11		9		3		---		---		---

Most Precipitation Reported in a Day

Years on Record: 105

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		132.3		53.3		48.3		50.8		70.1		72.4		106.7		132.3		83.8		88.9		72.1		49.5		40.6

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		54.3		1.4		1.8		3.9		6.5		7.6		7.5		6.1		5.2		4.6		4.2		3.4		2.1

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

Years on Record: 105

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		49		2		2		4		6		7		7		5		5		4		3		2		2

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

Years on Record: 105

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		14		---		---		1		2		2		3		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		19		0.3		0.3		1.2		2.1		3		3.3		2.1		2		1.9		1.8		0.7		0.3

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

Years on Record: 105

		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: 105

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		98.5		15.8		18.5		22.4		9.1		0.5		---		---		---		0.5		3.6		12.9		15.2

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		14.2		2.9		2.7		2.2		1.2		---		---		---		---		---		0.3		2.1		2.8

Most Snow Reported in a Month

Years on Record: 105

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		96.5		61		94		76.2		76.2		16.5		---		---		---		30.5		72.4		96.5		58.4

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		12.6		2.6		2.2		2		1		---		---		---		---		---		0.3		1.9		2.6

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		5.2		0.7		0.7		1.1		0.6		---		---		---		---		---		0.2		0.9		1

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		2.4		0.4		0.3		0.4		0.4		---		---		---		---		---		0.1		0.4		0.4

Avg. No. of Days w/Snowfall Above 10in/25cm

Years on Record: 30

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

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7293		1372		1135		949		569		265		57		8		18		157		511		930		1322

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		757		---		---		---		5		26		129		281		234		78		4		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2791		---		---		11		77		257		523		738		680		385		107		12		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.8		10		11.1		12.5		14		15.3		15.9		15.6		14.4		12.9		11.5		10.2		9.6

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.3		6.2		9.2		12.8		16.8		20.6		22.9		23.2		20.3		15.9		11.1		7		5.6

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.2		2.4		3.4		5		6.8		8		8.3		7.7		6.7		5.3		3.8		2.7		2.1

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.4		11.8		14.2		15.9		17.4		18.9		19.9		20.6		20.1		18.5		16.2		12.3		11.5

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.6		11.9		14.5		15.7		17.3		20.2		22.8		24.4		22.6		19.9		16.9		12.7		11.8

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.3		6.2		9.2		12.8		16.8		20.6		22.9		23.2		20.3		15.9		11.1		7		5.6

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.6		2.5		3.7		5.3		7.1		8.4		8.9		8.7		7.3		5.9		4.1		2.8		2.2

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.7		14.7		19.5		20.6		21.9		22.3		22.3		22.2		22.8		21.5		18.5		15.5		15.1

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		23.2		16		21.9		23.1		25.5		27.6		28.8		28.1		28		25		20.2		17.4		16.5

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.4		5.4		7.5		9.6		13.7		15.6		20.4		17.3		17.7		11.3		9.3		5.4		4.4

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.6		2.2		2.8		4.3		5.8		7		7.5		7.2		5.9		4.6		3.5		2.4		1.8

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.6		9.5		10.7		11.2		13.9		14.3		17.8		15.4		17.3		12.3		12.7		8.4		8.1

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.3		8.9		9.4		8.8		11.5		11.5		18		13.6		17.1		10.2		11.9		7.6		7.6