CHARLESTOWN, OREGON

Average Temperature

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		53.9		32.6		38.2		46.3		54.3		61.8		68.9		76		73.9		64.8		53.5		41.7		35.3

Average High Temperature

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		66.6		40		47.5		58.7		68.6		76.7		83.9		92.6		90.5		80.7		67		50.9		42.1

Average Low Temperature

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		41.3		25.2		28.9		33.8		40.2		47		54		59.4		57.3		48.9		40.1		32.7		28.4

Highest Recorded Temperature

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		117		67		78		86		97		104		110		117		114		103		89		80		71

Lowest Recorded Temperature

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-27		-23		-23		10		20		26		32		36		37		25		12		-6		-27

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		2.2		---		---		---		---		---		0.1		1		1.1		---		---		---		---

Average Number of Days Above 90F/32C

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		54.2		---		---		---		0.3		2.7		8.1		20		17.9		5.1		---		---		---

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		91.9		---		---		---		0.7		6.5		16		26.4		26.9		14.1		1.3		---		---

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		154.6		---		---		2.1		7.6		19.9		27.5		30.8		31		26.7		8.4		0.5		---

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		220		0.5		0.9		13.3		24.4		30.4		30		31		31		29.9		23.6		4.5		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		280.4		6.8		11.9		27		29.9		31		30		31		31		30		30.5		16.6		4.7

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		329.2		17.5		25.1		30.7		30		31		30		31		31		30		31		26		15.9

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		364.8		31		28		31		30		31		30		30.9		30.9		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		346.4		31		28		31		30		30.5		27.7		21.9		24.5		29.8		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		276.3		31		28		30.9		29.7		22		10.6		3.5		7		22.8		30.2		29.6		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		192.1		30.5		27.2		26.3		18.2		6.6		0.1		---		---		5.7		20.9		26.1		30.3

Average Number of Days Below 32F/0C

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		99.8		23.7		18.4		13.1		3.5		0.2		---		---		---		0.2		4.8		14.3		21.5

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		18.1		4.8		4.3		0.7		---		---		---		---		---		---		0.4		2.5		5.4

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		3.2		1.3		0.3		---		---		---		---		---		---		---		---		0.2		1.5

Average Number of Days Below 0F/-17C

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.1		1.3		0.3		---		---		---		---		---		---		---		---		---		0.4

Average Precipitation

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		8		1.1		0.8		0.7		0.6		0.6		0.6		0.2		0.2		0.4		0.7		1.1		1.1

Average Number of Days With Precipitation

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		60		8		7		6		5		4		4		1		2		3		5		7		8

Most Reported Precipitation in a Month

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		5.4		2.9		2.8		2.2		1.4		2.7		1.8		1.6		1.9		2		4.1		3.1		5.4

Least Reported Precipitation in a Month

Years on Record: 74

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

Most Precipitation Reported in a Day

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		3.1		1.1		0.7		0.9		0.6		1.1		1.2		1		0.8		1		3.1		1.3		0.9

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

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		29		4		3		2		2		2		2		1		1		2		2		4		4

Average Snowfall

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		8.1		3.9		2.1		0.2		---		---		---		---		---		---		---		0.8		1.1

Average Snow Cover

Years on Record: 17

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

Most Snow Reported in a Month

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		24.8		24.8		22		6.5		---		---		---		---		---		---		---		12		8.9

Heating Degree Days

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2663		695		474		277		82		12		---		---		---		5		105		400		613

Cooling Degree Days

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		891		---		---		---		4		41		146		344		281		73		2		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2797		---		1		30		102		310		494		709		663		375		101		11		1

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.8		9.7		10.9		12.5		14.1		15.6		16.3		15.9		14.6		13		11.4		10		9.3

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.1		1.3		2.3		3.8		5.1		6.1		6.9		7.1		6.2		4.7		3		1.6		1.1

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.7		0.8		1.2		1.8		2		2.4		2.6		2.7		2.4		2		1.4		0.9		0.7

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.5		2.2		3.3		4.6		5.4		5.7		6		6.3		6.2		5.5		4		2.5		1.8

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.6		1.9		3.1		4.2		5.7		6.1		7		7.2		6.6		5.4		3.9		2.2		1.7

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.1		1.3		2.3		3.8		5.1		6.1		6.9		7.1		6.2		4.7		3		1.6		1.1

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.9		0.8		1.3		1.9		2		2.6		3		3.3		2.8		2.1		1.5		1.1		0.8

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.1		2.5		4.1		5.3		5.9		6.5		6.9		7.2		6.9		6.1		4.7		3.2		2.2

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.3		2.1		3.9		5		6.3		7.4		8		7.8		7.1		6.1		4.6		2.9		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		3.6		1.1		1.8		3.2		4.6		5.4		6.2		6.2		5.7		4.2		2.6		1.4		0.9

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		0.7		1		1.7		1.9		2.4		2.6		2.5		2.2		1.8		1.3		0.8		0.6

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.9		1.7		2.5		3.8		4.9		5		5.3		5.5		5.7		4.8		3.5		2.2		1.4

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.8		1.5		2.2		3.2		4.9		4.8		5.8		6		6.1		4.6		3.3		1.8		1.2