HILL AIR FORCE BASE, UTAH

Average Temperature

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		50		26		32		40		49		57		66		74		72		63		52		38		29

Average High Temperature

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		62.5		35.8		41.7		50.8		61.4		71.2		81.1		90.4		88		77.8		65.1		48.9		38.3

Average Low Temperature

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		38		17.7		22.6		29.4		36.9		44.1		51.6		59.4		57.8		48.6		39.1		28.3		20.8

Highest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		94.6		43.7		51.6		59.5		69		77.3		87.1		94.6		92.6		84.2		75.2		59.9		44.9

Lowest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		9.3		9.3		11.4		24.4		32.4		38.3		47.1		52.1		52.4		43.3		34.3		21.1		9.8

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		0.3		---		---		---		---		---		0.1		0.2		0.1		---		---		---		---

Average Number of Days Above 90F/32C

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		42.3		---		---		---		---		0.4		6.1		19.4		14		2.4		---		---		---

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		92.8		---		---		---		0.2		5.7		16.1		30		27.6		12.4		0.9		---		---

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		137.6		---		---		1		4.3		14.3		25.1		31		30.5		23.9		7.3		0.2		---

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		190.2		0.1		0.6		7		14.8		25.3		29		31		31		28.4		19.6		3.5		---

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		240.8		1.2		3.7		18.2		24.5		30.5		29.9		31		31		29.8		28.1		11.5		1.4

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		299.6		9.4		15.6		27.8		29.7		31		30		31		31		30		30.8		22.7		10.6

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		359		31		28		31		30		30.9		29.5		27.9		28.6		30		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		305		31		28		31		30		29.9		21.8		6.7		8.9		25.6		31		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		246.7		31		28		30.8		28.7		20.9		6.3		---		0.7		10.7		28.6		29.8		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		184.7		31		27.5		28.3		17.8		5.4		0.2		---		---		1.6		14.6		27.3		31

Average Number of Days Below 32F/0C

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		139.1		28.9		24.2		20.1		8.8		1.9		0.1		---		---		0.5		5.8		20.7		28.1

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		37.6		14.3		7.7		0.8		---		---		---		---		---		---		---		2.8		12

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		7.7		3.8		1.7		---		---		---		---		---		---		---		---		0.5		1.7

Average Number of Days Below 0F/-17C

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3.5		1.7		0.7		---		---		---		---		---		---		---		---		---		1

Average Precipitation

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		18.4		1.7		1.6		2		2.2		2		1.3		0.7		0.9		1.3		1.7		1.6		1.6

Average Number of Days With Precipitation

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		78		8		7		9		8		8		5		3		4		5		6		7		8

Most Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		7		4.1		3.6		4.8		5.8		7		3.1		3.3		4.4		6		5.5		4.1		6.6

Least Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		---		0.3		0.1		0.7		0.2		0.2		---		---		0.1		---		---		---		0.1

Most Precipitation Reported in a Day

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		2.5		2		1.4		1.9		2.2		1.8		1.8		1.3		2.5		2		2.1		1.4		1.2

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

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		48		5		4		5		6		5		3		2		2		3		4		4		5

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

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10		1		1		1		1		1		1		---		---		1		1		1		1

Average Snowfall

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		36.5		13.1		6.6		3.7		1.1		0.2		---		---		---		---		0.2		2.8		8.8

Average Snow Cover

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		1		4		3		1		---		---		---		---		---		---		---		---		2

Most Snow Reported in a Month

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		44		44		24.1		17.5		12		3		---		---		---		---		5		19.5		39.8

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5980		1150		910		709		481		241		64		1		7		100		417		790		1109

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		959		---		---		---		1		34		147		369		318		87		3		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3097		---		---		19		80		276		534		833		776		443		127		8		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.1		11.2		12.5		13.9		15.1		15.7		15.3		14.2		12.9		11.5		10.4		9.8

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.7		2.2		3.1		4.4		5.6		6.6		7.5		7.3		6.3		5.2		3.7		2.3		1.9

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.3		0.7		0.9		1.3		1.7		2		2		1.9		1.7		1.3		1		0.8		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		5.4		4.1		4.7		5.6		5.8		6		6.5		6.5		6.2		6		5.4		4		3.9

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.2		4.4		5		6		6.5		7.2		8.5		8.4		7.4		7		6		4.3		4.2

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.7		2.2		3.1		4.4		5.6		6.6		7.5		7.3		6.3		5.2		3.7		2.3		1.9

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		0.8		1.1		1.5		2		2.3		2.2		2.1		1.9		1.6		1.1		0.8		0.7

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.2		5.2		5.5		6.3		6.7		6.7		7.2		7		6.9		6.9		6.7		4.7		5.1

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		7.8		5.9		6.4		7		8.2		8.7		10.6		9.8		8.9		8.6		8		5.3		5.8

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.1		1.8		2.6		3.7		4.8		5.7		6.9		6.7		5.9		4.4		3.2		1.9		1.6

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.1		0.5		0.8		1.2		1.5		1.8		1.5		1.6		1.4		1.1		0.7		0.7		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		4.6		3.1		3.6		4.5		4.9		5.2		6		6		5.8		5		4.5		3.1		3.1

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.8		3.1		3.5		4.3		4.8		5.4		7.3		7.2		6.6		5.2		4.6		3		3.1