ALPINE COUNTY AIRPORT, CALIFORNIA

Average Temperature

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		46		31.5		32.9		38.6		43		49.7		56.8		63.8		63.4		56.7		47.5		37.6		30.4

Average High Temperature

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		63.3		45.7		46.9		53.8		58.9		66.4		75.6		84.5		84.7		77.8		67		53.4		44.6

Average Low Temperature

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		28.8		17.4		19		23.5		27.1		33.1		38.1		43.1		42.1		35.5		28.1		21.8		16.3

Highest Recorded Temperature

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		102		66		69		80		82		90		94		102		101		98		87		75		67

Lowest Recorded Temperature

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-25		-20		-21		-15		6		10		24		26		25		18		6		-7		-25

Average Number of Days Above 90F/32C

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		15.7		---		---		---		---		0.1		0.6		7.2		6.9		0.9		---		---		---

Average Number of Days Below 32F/0C

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		221.7		29		26.7		27.6		24.6		14.9		6		1.4		2.1		9.9		23.5		27.1		28.9

Average Number of Days Below 0F/-17C

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5.4		1.6		1.4		0.2		---		---		---		---		---		---		---		0.4		1.7

Average Precipitation

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		19.2		3.7		3.1		2.1		1.3		1		0.6		0.4		0.5		0.5		0.9		2.1		3

Average Number of Days With Precipitation

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		59		8		8		6		5		5		3		3		2		3		4		5		7

Most Reported Precipitation in a Month

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		16.1		16.1		8.4		12.5		5		4.3		2.3		1.5		3		2.6		4.3		8.6		10.3

Least Reported Precipitation in a Month

Years on Record: 96

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

Most Precipitation Reported in a Day

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		4.7		2.9		2.7		3.6		1.5		2.5		1.1		0.8		1.5		1		2.8		4.7		4.7

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		41.3		6.6		5.6		5.2		3.5		2.4		2.1		1.5		1.5		1.7		2		3.9		5.3

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

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		37		6		5		4		3		3		2		1		1		1		2		4		5

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

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		11		2		2		1		1		1		---		---		---		---		1		1		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		12.8		2.7		2		1.9		0.6		0.8		0.3		0.2		0.4		0.1		0.6		1.1		2.1

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

Years on Record: 96

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

Average Snowfall

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		82.9		21.8		19.2		13.1		4.8		1.4		0.2		---		---		0.1		0.6		5.6		16.1

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		30.3		6.6		6.2		4.4		3.4		0.9		0.2		---		---		---		0.6		2.5		5.5

Most Snow Reported in a Month

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		99		99		73		73		30		7.2		2.4		---		---		2		3		45.2		51

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		19.5		4.4		4		2.8		1.8		0.4		0.2		---		---		---		0.5		1.7		3.7

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		10.1		2.1		2.3		1.7		0.9		0.1		---		---		---		---		0.1		0.8		2.1

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		5.9		1		1.7		1.1		0.2		0.1		---		---		---		---		---		0.4		1.4

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		2.1		0.4		0.6		0.3		0.1		---		---		---		---		---		---		0.2		0.5

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7091		1052		879		850		675		474		236		85		108		275		564		827		1066

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		97		---		---		---		---		---		11		44		39		3		---		---		---

Growing Degree Days

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1248.2		---		---		---		---		---		204		427.8		415.4		201		---		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.3		11.3		12.5		13.7		14.8		15.4		15.1		14.1		12.8		11.6		10.5		10

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5		2.3		3.2		4.7		5.9		7.1		7.8		7.8		6.9		5.7		4.1		2.6		2.1

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.3		0.8		1		1.3		1.7		1.9		1.8		1.7		1.5		1.2		0.9		0.8		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		5.7		3.9		4.6		5.7		6.1		6.4		6.8		6.9		6.8		6.6		5.9		4.3		3.9

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.8		4.3		5.1		6.3		6.9		8		9.2		9.5		8.7		8		6.7		4.8		4.3

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5		2.3		3.2		4.7		5.9		7.1		7.8		7.8		6.9		5.7		4.1		2.6		2.1

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.5		0.8		1.2		1.5		2		2.3		2.2		2.1		1.8		1.5		1.1		0.9		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		6.7		5		6.1		6.9		6.7		7.5		7.5		7.7		7.9		7.4		6.8		5.5		5.3

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		8.7		5.8		7.5		8.2		8.1		10.5		11.2		11.8		11.2		9.4		8.2		6.6		6.4

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.2		1.8		2.4		4.1		4.2		5.6		6.9		6.8		6.3		5.1		3.6		2.3		1.6

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		0.9		0.6		0.7		1		1.5		1.4		1.4		1.1		0.9		0.9		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		2.8		3.1		4.9		4.3		5.2		5.9		6.1		6.2		5.8		4.9		3.6		2.6

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		2.7		2.9		5		3.6		5.2		7.1		7.3		7.3		6.4		5.1		3.7		2.5