MIDWAY ISLAND, MIDWAY ISLANDS

Average Temperature

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		73		66		66		67		69		72		77		79		80		80		77		73		69

Average High Temperature

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		76		70		70		71		72		76		81		83		84		84		80		76		73

Average Low Temperature

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		68		62		62		63		64		68		73		75		75		75		72		69		65

Highest Recorded Temperature

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		92		80		81		81		82		87		89		92		92		92		89		88		82

Lowest Recorded Temperature

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		49		49		50		51		53		55		61		63		64		64		59		55		51

Average Number of Days Above 80F/26C

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		137		---		---		---		1		4		20		28		30		28		19		6		1

Average Precipitation

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		41.3		5		3.8		3		2.5		2.3		2.2		3.3		4.3		3.5		3.5		3.8		4.1

Average Number of Days With Precipitation

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		160		16		14		12		11		9		9		15		15		15		14		14		16

Most Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		12.1		9.4		10.4		10.7		7.1		10.2		2.9		6.1		12.1		7.7		9.6		9.7		8.4

Least Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		0.1		0.9		0.6		0.6		0.1		0.2		0.2		1.1		0.7		1.2		0.3		0.8		1

Most Precipitation Reported in a Day

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		7.2		5		2.9		3.8		5		6.8		7.2		3.8		4.8		3.7		6.8		6.2		3.9

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

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		76		9		7		6		5		4		4		6		7		8		6		6		8

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

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		23		3		2		2		2		1		1		2		2		2		2		2		2

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

Years on Record: 39

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

Average Number of Days With Thunderstorms

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6		1		---		---		---		---		---		1		1		1		1		1		---

Most Rain Reported in a Month

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		61.1		9.3		8.1		13.1		11.8		12.8		13.4		13.3		12.1		10.6		10		12.3		17.8

Least Recorded Rainfall

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		20.1		1.7		0.9		---		0.1		0.2		0.2		0.6		0.7		0.7		0.3		0.6		0.9

Average Morning Relative Humidity

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		77		74		75		77		78		79		81		80		80		79		77		76		74

Average Evening Relative Humidity

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		69		68		68		69		68		68		70		69		69		68		69		69		68

Average Dew Point

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		63		56		56		58		59		62		68		70		71		70		66		63		59

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		77		20		24		16		11		---		---		---		---		---		---		---		6

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3099		65		50		83		119		239		380		458		488		456		381		242		138

Growing Degree Days

Years on Record: 42

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8382		496		452		527		570		682		810		899		930		900		837		690		589

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.6		11		11.6		12.4		13.3		14		14.4		14.1		13.5		12.7		11.9		11.2		10.8

Average Number of Days With Fog

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8		1		1		1		1		1		1		---		---		---		---		1		1

Average Wind Speed

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		12		14		14		12		12		10		10		11		10		10		11		12		13

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.3		3.3		4.1		5.1		5.9		6.6		7.2		7.2		6.6		5.7		4.8		3.6		3.1

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		1.1		1.4		1.7		2		2.2		2.1		2		1.9		1.7		1.3		1.2		1

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.5		4.2		5		5.6		5.7		6		6.3		6.4		6.3		6		5.7		4.6		4.2

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6		4.5		5.1		5.6		5.8		6.5		7.4		7.5		7		6.4		6.2		5		4.6

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.3		3.3		4.1		5.1		5.9		6.6		7.2		7.2		6.6		5.7		4.8		3.6		3.1

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		1.2		1.5		1.9		2.2		2.4		2.3		2.2		2.2		1.8		1.5		1.3		1.1

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		4.9		5.9		6.4		6.5		6.7		6.7		6.8		6.9		6.7		6.3		5.2		4.8

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		7.2		5.7		6.5		7.1		7.4		8		8.5		8.6		8.4		7.8		7.2		6.1		5.7

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.5		2.8		3.6		4.1		4.6		5.7		6.6		6.6		5.6		5.2		4.3		3		2.6

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.4		1		1.2		1.4		1.7		1.9		1.9		1.8		1.6		1.4		1.2		1		0.9

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.7		3.5		4.3		4.3		4.5		5.2		5.8		5.9		5.4		5.4		5		3.6		3.3

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.5		3.3		3.9		3.6		3.6		4.8		6.2		6.3		5.1		5.3		5		3.5		3.2