UPPER HELEMANO RESERVOIR, HAWAII

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Elevation: 314 meters Latitude: 21 32N Longitude: 158 02W

WEATHER

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CURRENT CONDITIONS

Sunrise/Set

06:35 am

05:56 pm
Local Time
3:27 pm HST
31 October, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °F ] °C

PRECIPITATION

Average Precipitation

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1374		201		181		211		120		65		48		51		79		40		91		121		165

Average Number of Days With Precipitation

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		209		16		16		18		17		18		19		19		17		15		18		18		18

Most Reported Precipitation in a Month

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		754		545		559		754		510		124		81		121		227		58		373		349		323

Least Reported Precipitation in a Month

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		15		39		78		36		42		45		20		21		20		16		15		15		48

Most Precipitation Reported in a Day

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		284.2		179.6		233.9		192.5		116.8		45.7		39.4		47.8		120.1		14.5		131.6		284.2		175.3

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

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		94		10		9		10		9		6		6		6		6		6		8		8		10

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

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		22		4		3		4		2		1		---		1		1		---		1		2		3

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

Years on Record: 15

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

SKY CONDITIONS

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.5		11.4		11.8		12.4		13.1		13.6		13.8		13.7		13.2		12.6		12		11.5		11.2

SOLAR RADIATION

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		21.7		15.2		18.5		21.6		25		26.3		27.4		26.8		25.9		23.8		19.8		15.9		14.3

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.5		4.3		4.8		5.8		6.2		6.8		6.6		6.7		6.2		5.4		4.9		4.5		4.1

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		22.5		18.2		21.4		22.9		24.3		24		27.2		24		24.4		24.4		22.4		19.4		17.5

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		25.4		20.8		23.4		24.6		27.4		28		29.9		28.8		28.5		27.6		24.5		21.2		20.1

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		21.7		15.2		18.5		21.6		25		26.3		27.4		26.8		25.9		23.8		19.8		15.9		14.3

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.4		5.2		5.9		6.9		7.3		7.8		7.3		7.7		7.2		6.4		5.7		5.1		4.6

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		24.6		21.2		24.3		25.5		26.6		25.9		28.7		25.6		26.1		26		24		21.7		20

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		29.7		26.3		28.6		29.5		32.4		32.7		32.9		33		32.4		30.8		27.6		25.1		24.7

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19		11.4		15		17.8		22.1		23.6		25.7		24.1		23.3		21.5		17.8		13.6		12.4

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.7		3.5		3.9		4.8		5.2		5.8		5.9		5.8		5.3		4.8		4.4		3.8		3.4

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.4		12.9		16.9		18.6		21.4		21.7		25.5		21.7		22		21.9		19.8		16.2		14.7

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.6		11.9		15.6		16.9		21.5		22.7		26.4		23.4		23.2		22.6		19.9		15.8		15.3

NEARBY - MAP

NEARBY - LIST

Upper Wahiawa, Hawaii (1 mi / 2 km)
Ewa Forest Reserve, Hawaii (2 mi / 3 km)
Wahiawa, Hawaii (2 mi / 3 km)
Wahiawa State Freshwater Park, Hawaii (2 mi / 3 km)
Wheeler Army Air Field, Hawaii (2 mi / 4 km)

GEOBA.SE

Upper Helemano Reservoir, Hawaii