NIKOLAI - AIRPORT, ALASKA

Average Temperature

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-5.7		-25.7		-20.8		---		-4.3		5.3		12.2		11.1		11		4.9		-5.3		-15.6		-21.6

Average High Temperature

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		1.2		-18.6		-11.2		---		4.3		10.9		19.1		17.7		17.4		10.4		-0.1		-9.6		-15.2

Average Low Temperature

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-12.5		-32.7		-30.4		---		-12.1		-0.3		5.3		4.5		4.6		-0.5		-10.5		-21.7		-27.9

Highest Recorded Temperature

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		30		7.2		4.4		15.6		20.6		30		30		26.1		21.7		13.9		4.4		9.4		30

Lowest Recorded Temperature

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-52.2		-52.2		-47.8		-35.6		-35.6		-35.6		-35.6		-35.6		-35.6		-35.6		-43.3		-51.1		-52.2

Average Number of Days Below 32F/0C

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		242		28		30.5		26.5		28.3		14.7		1.5		5		3.5		16.3		30		28.8		28.8

Average Number of Days Below 0F/-17C

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		115		26.2		22.8		8		0.3		0.5		1		0.5		0.3		5.7		18.2		21.5		10

Average Precipitation

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		471		24		14		15		10		16		43		92		117		68		27		16		28

Average Number of Days With Precipitation

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		84		5		3		5		2		4		9		13		10		12		8		5		8

Most Reported Precipitation in a Month

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		132		91		37		20		27		34		90		132		129		102		47		55		71

Least Reported Precipitation in a Month

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		---		---		7		---		2		20		43		104		26		10		---		---

Most Precipitation Reported in a Day

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		49.5		21.8		19.8		12.7		26.9		9.9		49.5		24.1		25.4		33		16		22.9		46.5

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

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		49		3		1		2		1		2		5		9		9		8		4		2		3

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

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		11		1		1		---		1		---		1		2		4		1		---		---		---

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

Years on Record: 32

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

Average Snowfall

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		147.3		33.5		17		18.5		2.8		1.5		---		---		---		4.8		9.7		19.8		39.6

Most Snow Reported in a Month

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		101.6		101.6		27.9		23.6		8.9		12.7		---		---		---		19.1		15.8		66		71.1

Heating Degree Days

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6831.1		1191.1		955.6		1002.2		513.9		230		67.8		90		67.8		235.6		560.6		852.2		1064.4

Cooling Degree Days

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6.7		---		---		---		---		---		4.4		2.2		---		---		---		---		---

Growing Degree Days

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		131.5		---		---		---		---		67.2		33.3		31		---		---		---		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		13.6		7.1		9.7		12.7		16		19.9		22.4		20.5		17		13.6		10.5		7.7		6.1

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.7		0.7		3.2		8.6		15.3		19.7		21.5		18.5		13.4		9.1		4.6		1.3		0.2

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5		0.5		2		4.7		7.1		8.9		10.1		9.4		7.8		5		2.8		0.9		0.2

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.4		2.7		7		14.4		19.6		18.6		18.4		16.3		13.5		12.3		9		3.9		1

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.2		2.4		6.3		13.1		20.2		23.5		24.5		19.4		12.8		12.1		8		3.6		---

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.7		0.7		3.2		8.6		15.3		19.7		21.5		18.5		13.4		9.1		4.6		1.3		0.2

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.2		0.6		2.3		5.2		7.3		9		10.1		9.5		8		5.4		3.2		1		0.2

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.4		3.2		8.2		17.3		21.7		21.1		20.5		19.2		16.6		15.3		10.7		4.7		1.6

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		2.9		7.6		16.2		22.9		28.8		29.7		25.7		18.5		16.1		9.7		4.2		---

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		8.5		0.6		2.8		7.6		13.4		16.9		19.9		16.7		12		7.3		3.9		1.1		0.2

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.8		0.5		1.9		4.4		6.9		8.8		10		9.4		7.7		4.6		2.5		0.8		0.2

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.7		2.3		6		12.3		17.1		15.5		17		14.6		11.7		9		7.2		3		0.7

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		1.9		5.4		10.7		15.9		17.2		21		15.6		9.8		7.8		6.3		2.8		---