HEYBURN, IDAHO

Average Temperature

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		47.4		26.1		31.2		38.2		45.8		54.6		62.3		70.5		68.5		59.1		48.3		36.3		28.4

Average High Temperature

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		61.1		35.4		41.3		50.1		59.5		69		77.8		88		86.6		76.5		63.9		47.6		37.8

Average Low Temperature

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		33.8		16.8		21.2		26.2		32.2		40.1		46.9		53		50.5		41.7		32.8		25		19.1

Highest Recorded Temperature

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		104		63		69		78		88		95		104		104		104		100		89		75		68

Lowest Recorded Temperature

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-31		-31		-21		-3		6		16		29		28		31		20		7		-15		-25

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		0.7		---		---		---		---		---		0.1		0.3		0.3		---		---		---		---

Average Number of Days Above 90F/32C

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		32.8		---		---		---		---		0.2		3.7		14.4		11.9		2.5		---		---		---

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		84.6		---		---		0.1		0.9		5.2		13		25.4		26.4		12.2		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		134.6		---		---		0.8		6.1		13.9		23		30.1		30.1		22.2		8.2		0.3		---

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		186		---		0.3		5.6		15		23.8		28.5		31		30.9		28.3		18.7		3.7		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		240.7		1.3		5.1		16.8		25.1		30.2		29.9		31		31		29.9		27.3		11.2		1.8

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		296.7		9.5		14.2		26.6		29.8		31		30		31		31		30		30.6		22.6		10.4

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		365		31		28		31		30		31		30		31		31		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		362.1		31		28		31		30		31		29.6		29.4		30.1		30		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		318.7		31		28		31		29.9		28.8		21		12.5		17		27.4		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		238.4		30.9		27.8		30.6		26.5		14.8		4.4		0.4		2.2		13.5		27.4		29		30.9

Average Number of Days Below 32F/0C

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		173.5		29.3		26.1		25.8		16		3.8		0.2		---		0.1		2.8		15.3		25.1		29.2

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		60.2		16.9		11.7		4.2		0.8		---		---		---		---		---		1		7.5		18

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		21.2		7.3		4		0.8		---		---		---		---		---		---		---		2		7.2

Average Number of Days Below 0F/-17C

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5.6		2.8		1		0.1		---		---		---		---		---		---		---		0.3		1.5

Average Precipitation

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		9.8		1		0.7		0.8		0.9		1.2		0.9		0.4		0.4		0.6		0.8		1		1

Average Number of Days With Precipitation

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		67		9		6		7		6		6		5		2		3		3		5		7		8

Most Reported Precipitation in a Month

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		4.7		3		4.3		3.3		3.1		4.7		3.4		1.8		3.8		3.4		2		2.6		4.3

Least Reported Precipitation in a Month

Years on Record: 86

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

Most Precipitation Reported in a Day

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		2		1.1		1.8		0.9		1.4		1.3		2		1		1		1.3		1.1		1		1.5

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		29.7		2.7		2.1		3.5		2.8		3.5		2.6		1.3		1.1		1.6		2		3.5		3

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

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		31		3		3		3		3		3		3		1		1		2		3		3		3

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

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		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		2.7		0.3		0.2		0.2		0.1		0.5		0.3		0.1		---		0.2		0.1		0.3		0.4

Average Snowfall

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		17.8		5.5		2.9		1.8		0.9		0.3		---		---		---		---		0.2		1.6		4.6

Average Snow Cover

Years on Record: 51

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

Most Snow Reported in a Month

Years on Record: 86

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		25.1		25.1		12		12		9		10		---		---		---		---		4		8		22.7

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6936		1195		981		817		563		332		136		29		40		215		540		882		1205

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		370		---		---		---		1		8		53		155		131		21		1		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2102		---		---		5		51		185		372		590		557		274		65		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		15.8		15.5		14.3		12.9		11.5		10.3		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		2		2.9		4.1		5.3		6.1		7.1		7.3		6.4		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		1.8		2.1		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		3.9		4.6		5.4		5.6		5.6		6.1		6.5		6.5		6.1		5.4		3.9		3.7

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		4.2		5		5.7		6.1		6.5		7.8		8.6		8.1		7.2		6		4.2		3.9

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		2		2.9		4.1		5.3		6.1		7.1		7.3		6.4		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		1.5		0.7		1		1.4		1.9		2.3		2.4		2.1		1.7		1.5		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		6.2		4.6		5.6		6.2		6.5		6.9		7.1		7.3		6.9		6.9		6.6		4.9		4.4

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		5.1		6.5		7.2		7.9		9.4		10.6		10.8		9.2		8.5		7.9		5.5		4.8

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.9		1.7		2.3		3.6		4.6		5.3		5.9		6.6		6.1		4.5		3.1		1.6		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		0.7		1.1		1.5		1.6		1.6		1.4		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		4.4		3.3		3.3		4.4		4.7		4.8		5.1		5.8		6.1		5.2		4.6		2.7		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		4.7		3.3		3.2		4.3		4.6		4.8		5.4		7		7.3		5.6		4.8		2.5		3.1