POWELL, WYOMING

Average Temperature

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		8.2		-4.2		-2.2		1.6		7.6		12.4		17.3		21.5		20.3		15.1		9.1		2.2		-2.4

Average High Temperature

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		14.7		1.7		3.9		8.1		14.3		19.1		24.3		29.1		27.7		22.2		15.4		7.8		3.3

Average Low Temperature

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		1.6		-10.3		-8.5		-4.8		0.8		5.8		10.3		14		13		8.1		2.6		-3.6		-8.1

Highest Recorded Temperature

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		40.6		18.3		21.1		26.7		29.4		34.4		38.3		40.6		38.9		35.6		31.1		25.6		23.3

Lowest Recorded Temperature

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-41.1		-41.1		-36.1		-27.8		-21.7		-7.8		-1.7		2.2		-1.1		-11.1		-22.8		-25.6		-35

Average Number of Days Above 90F/32C

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		16.8		---		---		---		---		0.2		2.5		8.2		5.2		0.7		---		---		---

Average Number of Days Below 32F/0C

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		152.6		27.6		24.8		24.3		13.4		2.6		0.1		---		---		1.1		10		21.9		26.8

Average Number of Days Below 0F/-17C

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		17.7		6.8		3.9		1.8		0.1		---		---		---		---		---		0.1		0.9		4.1

Average Precipitation

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		261		11		9		16		26		43		36		29		20		25		19		16		11

Average Number of Days With Precipitation

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		76		5		4		6		7		10		9		8		7		6		5		5		4

Most Reported Precipitation in a Month

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		110		46		37		46		59		110		77		73		48		72		54		69		49

Least Reported Precipitation in a Month

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		---		---		1		2		---		6		5		---		1		---		---		---

Most Precipitation Reported in a Day

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		34.3		15		12.9		31.8		27.9		34.3		30.7		30		15.2		30.7		19.8		31		23.1

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

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		35		2		1		2		3		5		5		4		3		3		3		2		2

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

Years on Record: 54

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

Average Number of Rainy Days

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		17		---		---		---		1		2		2		1		1		1		1		1		---

Average Snowfall

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		93		16.5		12.7		18.3		10.2		1.8		---		---		---		1		8.1		13.2		11.2

Most Snow Reported in a Month

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		71.1		66		55.9		62		44.7		11.4		2		---		---		15		61		71.1		53.3

Average Relative Humidity

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		54		71		68		55		48		49		44		40		40		44		49		61		73

Average Dew Point

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-3		-12		-10		-8		-4		---		3		5		4		---		-3		-7		-10

Heating Degree Days

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2495.6		525.6		423.9		347.2		169.4		62.8		8.9		0.6		1.1		30		136.7		319.4		470

Cooling Degree Days

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		258.3		---		---		---		0.6		6.1		38.9		110		82.8		18.9		1.1		---		---

Growing Degree Days

Years on Record: 54

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1124.2		---		---		---		---		74.1		220		356.5		320.3		153.3		---		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.8		9.8		11		12.5		14.1		15.5		16.2		15.8		14.5		13		11.4		10.1		9.4

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.2		5.9		9.2		13.3		17.1		20.3		22.6		23.6		20.6		15.7		10.5		6.6		5.1

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		3.1		4.7		6.5		7.9		8.4		7.5		6.4		5		3.6		2.4		1.8

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.7		12.2		15.1		17.2		17.9		18.7		19.6		21		20.6		18.8		15.8		12.6		10.6

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.4		12.6		16		17.9		18.5		20.3		22.8		25.9		24.1		20.7		16.7		13.2		11.9

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.2		5.9		9.2		13.3		17.1		20.3		22.6		23.6		20.6		15.7		10.5		6.6		5.1

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.3		2.2		3.4		5.1		6.8		8.3		9		8.5		6.8		5.6		3.8		2.6		1.9

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		14.5		18.6		20.6		22.1		22.1		22.1		23.5		22.4		21.9		19.3		15.7		13.6

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		23.8		15.5		21.9		23.4		26.5		27.8		28.9		32.1		27.8		25.9		21.6		17.6		16.4

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.2		5.4		7.4		10.7		15		17.2		18.5		19.9		19.5		13		9.3		5.5		4.5

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.4		2		2.5		4.1		5.5		7		7.6		6.5		5.9		4.3		3.1		2.1		1.6

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.8		10.7		11.2		13.2		15.4		15.7		16.1		17.7		19.4		14.8		13.4		9.5		8.8

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.6		10.6		10.6		11.7		14.4		14.4		15.2		18.5		21.5		14.3		13.1		9.4		9.4