PORTHILL, IDAHO

Average Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		8.5		-1.9		-0.3		3.9		8.5		12.5		16		20		19.7		15		8		2		-2.1

Average High Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		13.7		0.9		3.4		8.7		14.4		18.8		22.4		27.8		27.6		22.1		13.1		5.1		0.5

Average Low Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		3.2		-4.7		-4		-1		2.6		6.2		9.6		12.2		11.8		7.9		3		-1.1		-4.8

Highest Recorded Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		38		12		14.5		23		26		33		36.5		38		37.5		36		26		16.5		10.5

Lowest Recorded Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-27.5		-26.5		-24.5		-16.5		-5		-2		2		4.5		1.5		-2.5		-13		-19		-27.5

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		0.4		---		---		---		---		---		---		0.3		0.1		---		---		---		---

Average Number of Days Above 95F/35C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.6		---		---		---		---		---		0.1		1.2		1.1		0.2		---		---		---

Average Number of Days Above 90F/32C

Years on Record: 119

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		12.5		---		---		---		---		0.2		0.9		6.2		4.8		0.4		---		---		---

Average Number of Days Above 86F/30C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		24		---		---		---		---		0.6		1.7		10.5		10		1.3		---		---		---

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		58.4		---		---		---		0.2		3.9		8.2		19.7		20.2		6.2		---		---		---

Average Number of Days Above 70F/21C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		111.7		---		---		0.1		3.4		11.2		19.4		28.5		28.4		18.5		2.3		---		---

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		165.1		---		---		2.4		13		24		28.3		30.9		30.9		26.2		9.1		0.2		---

Average Number of Days Above 50F/10C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		213.6		0.2		0.8		10.8		25.1		29.7		30		31		31		29.8		22.6		2.5		0.1

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		285.4		7.3		13.3		27.4		29.9		31		30		31		31		30		30.4		18.4		5.7

Average Number of Days Above 32F/0C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		329.2		19.2		22.5		30.1		30		31		30		31		31		30		30.7		26.8		17

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		362.5		31		28		31		30		31		29.7		29.3		30.6		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		310.8		31		28		31		30		27.9		18		9.4		15.2		28.5		30.8		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		225.1		31		27.9		30.7		25.4		11.2		1.5		---		0.8		10.6		26.5		28.5		31

Average Number of Days Below 35F/2C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		171.2		30.1		27.4		26.8		14.2		4.2		0.1		---		0.1		1.5		12		24.4		30.5

Average Number of Days Below 32F/0C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		132.3		26.5		24.1		19.8		7.2		1		---		---		---		0.5		7		18.5		27.8

Average Number of Days Below 28F/-2C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		72.7		17.7		14.8		7.6		1.1		---		---		---		---		0.1		2.2		9.5		19.9

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		42.3		11.8		9.3		3.1		0.1		---		---		---		---		---		0.6		3.8		13.6

Average Number of Days Below 10F/-12C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		14.4		4.8		3.1		0.7		---		---		---		---		---		---		0.2		1		4.6

Average Number of Days Below 0F/-17C

Years on Record: 119

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7.6		3.6		1.8		0.3		---		---		---		---		---		---		---		0.4		1.6

Average Number of Days Below -4F/-20C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1		0.5		0.3		---		---		---		---		---		---		---		---		---		0.3

Average Number of Days Below -22F/-30C

Years on Record: 20

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Average Precipitation

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		577.4		57		33		42.3		40.1		69.3		66.6		37.2		28		31.5		39.7		68		64.8

Average Number of Days With Precipitation

Years on Record: 119

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		110		12		9		9		8		10		10		6		6		7		9		12		12

Most Reported Precipitation in a Month

Years on Record: 119

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		264		215		105		114		107		168		135		83		101		264		175		168		143

Least Reported Precipitation in a Month

Years on Record: 119

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		6		1		5		---		4		7		---		---		---		---		5		8

Most Precipitation Reported in a Day

Years on Record: 51

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		58.6		19.8		21.8		29.4		20.4		51.2		46		25.6		58.6		27.5		38.1		30.5		40.6

Avg. No. of Days w/Precip. Above 0.1in/2.5mm

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		139.5		15.1		10.3		12.4		12.1		13.7		14.4		8		6.9		7.2		10.7		14.8		14

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

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		40.2		4.2		1.9		2.9		2.5		4.9		4.7		2.7		1.7		2.2		2.8		4.5		5.2

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

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		13.9		1.2		0.6		0.8		0.9		1.6		1.9		1		0.6		0.9		1		1.6		1.9

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		8.6		0.6		0.5		0.6		0.5		0.9		0.8		0.8		0.4		0.4		0.5		1.3		1.3

Avg. No. of Days w/Precip. Above 1in/25mm

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.1		---		---		0.1		---		0.4		0.2		0.1		0.1		0.1		---		0.3		---

Avg. No. of Days w/Rain Above 0.1in/2mm

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		112.2		7.4		6		9.9		12		13.7		14.4		8		6.9		7.2		10.5		11.1		5.3

Average Rainfall

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		448.8		24.4		16.5		31.2		37.6		69.3		66.6		37.2		28		31.5		37.3		45.7		23.5

Most Rain Reported in a Day

Years on Record: 51

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		58.6		17.3		14.2		29.4		20.4		51.2		46		25.6		58.6		27.5		38.1		26.4		21.2

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

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		30.7		1.8		0.8		1.9		2.3		4.9		4.7		2.7		1.7		2.2		2.7		3.1		2

Avg. No. of Days w/Rain Above 0.4in/10mm

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10.7		0.4		0.3		0.8		0.8		1.6		1.9		1		0.6		0.9		0.9		1		0.7

Avg. No. of Days w/Rain Above 1in/25mm

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.9		---		---		0.1		---		0.4		0.2		0.1		0.1		0.1		---		0.1		---

Average Snowfall

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		128.7		32.6		16.4		11.2		2.5		0.1		---		---		---		---		2.4		22.3		41.3

Average Snow Cover

Years on Record: 5

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		1.6		11.5		2.9		0.3		---		---		---		---		---		---		---		0.4		3.8

Average Snow Cover at Month End

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		1.5		5.2		0.1		---		---		---		---		---		---		---		---		0.8		11.4

Deepest Snow Cover Reported

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		50		50		15		16		---		---		---		---		---		---		---		14		31

Most Snow Reported in a Day

Years on Record: 51

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		40.6		19.5		21.6		10		13		7.6		---		---		---		---		15		30.5		40.6

Most Snow Reported in a Month

Years on Record: 119

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		237.5		237.5		106.7		101.6		25.4		7.6		---		0.2		---		5.1		15.2		154.9		131.8

Avg. No. of Days w/Snow Above 1in/2.5cm

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		36.4		9.8		5.5		4.2		0.8		0.1		---		---		---		---		0.6		5.2		10.3

Avg. No. of Days w/Snowfall Above 2in/5cm

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8.8		2.2		0.9		0.8		0.2		---		---		---		---		---		0.2		1.4		3.2

Avg. No. of Days w/Snow Above 3.9in/10cm

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.7		0.7		0.3		0.1		0.1		---		---		---		---		---		0.1		0.5		1

Avg. No. of Days w/Snowfall Above 10in/25cm

Years on Record: 20

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

Av. # of Days w/Snow Depth Above 0.4in/10mm

Years on Record: 2

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		43.8		29.5		6.5		0.8		---		---		---		---		---		---		---		---		7

Avg. # of Days w/Snow Depth Above 2in/5cm

Years on Record: 2

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		30.5		28.5		2		---		---		---		---		---		---		---		---		---		---

Av. # of Days w/Snow Depth Above 3.9in/10cm

Years on Record: 2

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		25.5		25		0.5		---		---		---		---		---		---		---		---		---		---

Av. # of Days w/Snow Depth Above 7.8in/20cm

Years on Record: 2

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6.5		6.5		---		---		---		---		---		---		---		---		---		---		---

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7062		1161		967		823		547		319		146		46		57		258		629		906		1203

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		273		---		---		---		---		8		35		123		99		9		---		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1842		---		---		1		31		180		341		542		507		218		21		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.9		9.4		10.8		12.5		14.4		16		16.8		16.4		14.9		13.1		11.3		9.7		8.9

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.1		4.8		8.1		12.5		16.8		19.4		20.7		22.4		19.6		14.7		8.8		5		4

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.1		2.8		4.2		6.2		7.6		9		9.7		9.4		8.1		6.6		4.5		3		2.4

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.8		8.6		13		16.5		17.8		17.9		17.9		20		19.6		17.3		12.2		8.8		7.7

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.4		7.8		11.4		14.3		17.3		17.8		18.4		22		20.6		16.8		11.4		7.5		6.9

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.1		4.8		8.1		12.5		16.8		19.4		20.7		22.4		19.6		14.7		8.8		5		4

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.5		3.1		4.5		6.5		7.6		9.1		9.8		10.5		8.6		7.5		5.2		3.2		2.6

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.3		10.1		14.3		18.9		20.1		20.5		20.5		24.2		22.6		21.6		15.8		10.3		8.6

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.8		9.4		12.8		16.8		20.9		22.7		23.6		28		24.7		21.9		15.5		8.8		7.9

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.8		4.3		6.9		11		15		16.6		17.8		16.4		16		11.1		6.5		4.3		3.6

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.8		2.6		3.8		5.9		7.5		8.9		9.5		9.1		8		5.9		3.7		2.7		2.2

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12		7.6		10.8		14		15.6		15.1		15.4		14.5		15.7		12.5		8.6		7.1		6.8

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.3		6.8		9.2		11.7		13.8		12.7		13.4		11.8		14.1		10.6		7.5		6		5.9