ROCKLAND, IDAHO

Average Temperature

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		48.8		26.5		31.6		40.2		47.6		55.3		64		72.6		71.2		61.6		49.7		36.8		28.1

Average High Temperature

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		62.9		35.9		42		52.3		61.4		70.4		80.6		91.2		90		80		65.4		47.8		37.6

Average Low Temperature

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		34.6		17.2		21.2		27.9		33.6		40.3		47.4		54		52.5		43.4		34.1		25.7		18.3

Highest Recorded Temperature

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		108		60		71		79		90		98		105		107		108		101		91		77		67

Lowest Recorded Temperature

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-30		-30		-24		-10		15		15		29		35		31		21		12		-8		-26

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		---		---		---		---		---		---		1		0.7		---		---		---		---

Average Number of Days Above 90F/32C

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		50.4		---		---		---		---		0.8		6.1		19.7		18.3		5.4		0.2		---		---

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		91.2		---		---		---		0.9		5.3		14.8		27.5		26.8		13.8		1.9		---		---

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		136.1		---		---		0.5		4.5		14.2		24		30.4		30.5		23.5		8.3		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		184.7		---		0.5		5.3		13.7		23.9		29		31		31		28.3		19.2		2.7		0.1

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		234.6		0.9		4.3		16		24.3		29.7		30		31		31		29.7		27.1		9.5		1.1

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		288.8		7.7		13.1		26.4		29.4		31		30		31		31		30		30.6		20.5		8

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		364.6		31		28		31		30		31		30		30.7		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		355.3		31		28		31		30		30.9		29.2		26		27.6		29.7		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		304.1		31		28		31		29.8		28.8		19.9		8		11		24.8		30.9		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		230.9		31		27.9		30.2		26.5		14.6		3.9		0.3		0.9		10.1		25.7		28.8		31

Average Number of Days Below 32F/0C

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		158.2		28.6		24.6		22.8		13		4		0.2		---		0.1		2		11.9		22.8		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		65.1		18.4		13.2		5		1.1		0.1		---		---		---		---		0.9		8.1		18.2

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		25.4		8.7		5.7		1		---		---		---		---		---		---		---		2		7.8

Average Number of Days Below 0F/-17C

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7.3		3.3		1.2		0.1		---		---		---		---		---		---		---		0.6		2

Average Precipitation

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		12.1		1.1		0.9		1.3		1.4		1.5		1		0.6		0.4		0.8		1		1.2		1.1

Average Number of Days With Precipitation

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		82		9		8		8		8		8		6		4		5		4		6		8		8

Most Reported Precipitation in a Month

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		4		3.6		1.9		3.5		2.8		4		3.8		3.6		1.3		2.2		2.3		3.3		3.3

Least Reported Precipitation in a Month

Years on Record: 38

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

Most Precipitation Reported in a Day

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		3.3		3.3		0.7		1.7		1		1.4		1.4		1.6		0.9		0.8		1		1.2		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		38.3		3.7		3.4		3.9		4.5		4.3		2.8		1.2		1.4		2.3		3.3		3.7		3.8

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

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		37		4		3		4		4		4		3		1		1		2		3		4		4

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

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		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		4.6		0.4		0.2		0.5		0.6		0.6		0.4		0.3		0.1		0.3		0.3		0.5		0.4

Average Snowfall

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		12.8		3.7		2.4		1.5		0.7		0.3		---		---		---		---		0.2		1.2		2.8

Average Snow Cover

Years on Record: 26

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

Most Snow Reported in a Month

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		27		23		17.5		13.5		7.5		6		---		---		---		---		4		9		27

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6997		1235		1013		831		582		337		120		15		21		177		526		901		1237

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		511		---		---		---		---		7		63		217		185		38		---		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2316		---		---		4		40		182		397		666		629		324		72		3		---

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		11.1		12.5		13.9		15.2		15.9		15.5		14.3		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
kWh/m2		4.5		1.9		2.8		4.2		5.4		6.4		7.2		7.3		6.5		5.1		3.5		2.1		1.7

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		0.6		0.9		1.3		1.7		2		2.1		1.9		1.6		1.2		0.9		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		5.3		3.8		4.5		5.4		5.6		5.9		6.2		6.5		6.5		6.1		5.3		3.9		3.6

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.1		3.9		4.8		5.8		6.3		7		8.1		8.6		8.1		7.2		5.9		4.2		3.8

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.5		1.9		2.8		4.2		5.4		6.4		7.2		7.3		6.5		5.1		3.5		2.1		1.7

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.4		0.7		1		1.4		1.9		2.3		2.4		2		1.7		1.4		1.1		0.8		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		6.1		4.2		5.5		6.6		6.5		7		7		7.1		7		6.8		6.4		5		4.5

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		7.7		4.5		6.2		7.9		8		9.7		10.2		10.2		9.3		8.4		7.6		5.7		4.9

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		1.6		2.5		3.6		4.7		5.6		6.1		6.9		6.2		4.6		3.1		1.8		1.5

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		0.6		0.8		1		1.5		1.6		1.7		1.6		1.4		1		0.7		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		4.6		3		3.9		4.5		4.8		5.1		5.3		6.1		6.2		5.4		4.6		3		3

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.9		2.9		3.9		4.5		4.8		5.4		5.7		7.7		7.5		5.9		4.8		2.9		3