NAPLES, IDAHO

Average Temperature

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		46.2		25.6		30.7		37.9		46.8		54.8		61		66.9		65.8		57.1		45.6		34.6		28.2

Average High Temperature

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		57.9		32.2		38.7		48.2		59.8		68.9		75.2		83.7		82.9		72.4		57		41.6		33.9

Average Low Temperature

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		34.6		18.9		22.6		27.5		33.8		40.5		46.8		50		48.7		41.8		34.2		27.7		22.3

Highest Recorded Temperature

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		104		56		61		75		89		95		98		104		101		97		84		67		56

Lowest Recorded Temperature

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-33		-29		-25		-12		12		17		31		32		28		15		8		-13		-33

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		0.2		---		---		---		---		---		---		0.2		---		---		---		---		---

Average Number of Days Above 90F/32C

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		18.6		---		---		---		---		0.3		1.7		8.6		7.4		0.7		---		---		---

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		67.8		---		---		---		0.4		4.6		9.7		22.6		22.6		7.8		---		---		---

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		121.7		---		---		0.2		5		14.2		22.8		28.9		29.3		19.1		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		172.1		---		0.1		2.5		14.9		26.1		29.2		31		31		27.2		9.9		0.4		---

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		227		0.3		1.8		15.7		27.5		30.9		30		31		31		30		25		3.8		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		284.5		7.4		13.6		27.9		29.9		31		30		31		31		30		30.5		17.8		4.3

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		362.2		31		28		31		30		31		29.7		29.6		30		29.9		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		316.9		31		28		30.9		29.9		28.5		20.1		13.7		16.6		26.5		30.7		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		30.9		28		30.1		24.1		13.7		2.5		0.7		0.9		10.6		24.7		27.8		31

Average Number of Days Below 32F/0C

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		155		27.9		24.4		22.9		12.8		3.2		0.1		---		0.1		2.6		12.4		21.2		27.4

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		38.7		10.6		8		2.5		---		---		---		---		---		0.1		1.1		4.1		12.2

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		11.2		3.6		2.3		0.2		---		---		---		---		---		---		0.1		0.9		4.1

Average Number of Days Below 0F/-17C

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6		3.2		1.1		0.2		---		---		---		---		---		---		---		0.4		1.1

Average Precipitation

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		21.9		3		1.8		1.6		1.3		1.6		1.6		0.9		0.9		1.3		1.9		3		3.1

Average Number of Days With Precipitation

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		113		13		10		10		8		10		9		6		5		7		9		12		14

Most Reported Precipitation in a Month

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		8.4		7.7		5.1		4		2.8		4.7		4		2.8		3		3.6		7.6		8.4		6.3

Least Reported Precipitation in a Month

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		---		0.2		0.2		0.2		---		0.2		---		---		---		---		---		0.3		0.6

Most Precipitation Reported in a Day

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		2.8		2.8		1.4		1.4		1.1		2.1		1.4		1.2		1.3		2.1		1.3		2.8		2.7

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		59.9		7.6		4.6		5.1		4.1		4.9		4.5		2.6		2.5		3.3		5.2		7.9		7.6

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

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		64		8		5		5		4		5		5		3		3		4		5		8		9

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

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		11		2		1		---		---		1		1		---		---		1		1		2		2

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		8.9		1.1		0.6		0.4		0.5		0.6		0.8		0.2		0.4		0.4		0.7		1.4		1.8

Average Snowfall

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		65.5		21.2		10.8		4.7		0.5		0.1		---		---		---		---		0.4		8.5		19.3

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		25.7		7.7		3.6		1.6		0.3		---		---		---		---		---		0.3		3		9.2

Average Snow Cover

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		2		8		6		2		---		---		---		---		---		---		---		1		4

Most Snow Reported in a Month

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		91.4		91.4		45.5		30.6		6		4.4		---		---		---		---		7.1		45.5		63.6

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		18.1		5.6		2.4		1.1		0.2		---		---		---		---		---		0.2		2		6.6

Avg. No. of Days w/Snow Above 3in/7.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6.9		2.3		0.7		0.4		0.1		---		---		---		---		---		---		0.9		2.5

Avg. No. of Days w/Snow Above 5in/12.7cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.9		0.8		0.3		0.1		---		---		---		---		---		---		---		0.4		1.3

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

Years on Record: 30

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

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6833		1136		939		792		525		307		130		38		43		233		609		899		1183

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		265		---		---		---		---		6		32		116		100		11		---		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1917		---		---		2		39		186		353		542		522		241		29		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		9.4		10.8		12.5		14.3		15.9		16.8		16.3		14.8		13.1		11.3		9.7		9

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.7		1.3		2.3		3.6		4.9		5.7		5.9		6.4		5.5		4.1		2.5		1.5		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		1.7		2.1		2.5		2.7		2.6		2.3		1.8		1.3		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		4.2		2.4		3.7		4.8		5.2		5.2		5.1		5.7		5.6		4.8		3.6		2.7		2.2

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.2		2.2		3.3		4.2		5.3		5.4		5.4		6.3		5.9		4.6		3.4		2.3		2

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.7		1.3		2.3		3.6		4.9		5.7		5.9		6.4		5.5		4.1		2.5		1.5		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		1.8		0.8		1.2		1.9		2.1		2.5		2.7		3		2.4		2.1		1.4		0.9		0.7

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.9		2.6		3.9		5.4		5.8		6		5.7		6.8		6.3		6		4.3		3		2.4

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5		2.4		3.5		5.1		6.1		6.8		6.6		7.8		6.9		6.1		4.2		2.6		2.2

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.1		1.2		2.1		3.2		4.5		4.9		5.3		4.5		4.6		2.9		2		1.4		1

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		1.7		2.1		2.5		2.6		2.5		2.2		1.6		1.1		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		3.5		2.1		3.2		4.1		4.7		4.5		4.6		4		4.5		3.2		2.8		2.3		1.9

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.1		1.9		2.8		3.5		4.5		4		4.3		3.2		4.2		2.6		2.5		2		1.7