ADAMSTOWN, PITCAIRN ISLANDS

Average Temperature

Years on Record: 44

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		68		73		73		73		71		68		66		66		64		64		66		68		71

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		73.8		78.3		79.2		78.6		75.9		73		70.9		69.8		69.1		70		71.8		73.4		75.9

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		65.3		69.1		69.8		69.4		67.6		65.7		63.5		62.2		60.8		61.5		63		64.8		67.1

Highest Recorded Temperature

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		91.9		89.1		90.3		91.9		87.3		84.4		88.3		80.1		80.1		78.3		81		81.7		84.7

Average Precipitation

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		64.2		4.8		5.5		4.7		5.2		5.2		6.1		5.9		4.9		5.4		5.4		4.8		6.4

Average Number of Days With Hail

Years on Record: 20

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

Average Rainfall

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		18.5		1.5		1.7		1.4		1.5		1.4		1.8		1.7		1.4		1.5		1.7		1.5		1.5

Average Number of Rainy Days

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		149.6		12.1		9.3		15		16		13		15		15		13		10.9		9		9.9		11.4

Average Number of Days With Thunderstorms

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10.4		1.8		1.4		1		0.9		0.7		0.8		0.8		0.5		0.4		0.5		0.6		1

Most Rain Reported in a Day

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		7.4		5.9		4.6		5.4		2.9		4.8		7.1		5		6.9		4		5.9		5.5		7.4

Avg. No. of Days w/Rain Above 0.1in/2mm

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		102.1		8.7		7		10		9		7.4		10.7		10.9		9		8.2		6.9		6.3		8

Average Morning Relative Humidity

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		81.9		82.6		82.8		81.7		81.3		80.4		82		81.9		80.6		80.2		81.7		82.9		84.8

Heating Degree Days

Years on Record: 44

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		61		---		---		---		---		---		---		---		31		30		---		---		---

Cooling Degree Days

Years on Record: 44

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1363		248		226		248		180		93		30		31		---		---		31		90		186

Growing Degree Days

Years on Record: 44

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6780.8		713		649.8		713		630		558		480		496		434		420		496		540		651

Average Sea Level Pressure

Years on Record: 31

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
InHg		30.1		30		30		30		30		30.1		30.1		30.1		30.1		30.1		30.1		30.1		30

Average Vapor Pressure

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
InHg		0.6		0.7		0.7		0.7		0.7		0.6		0.6		0.5		0.5		0.5		0.6		0.6		0.7

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.5		13.9		13.3		12.6		11.9		11.3		11		11.2		11.7		12.4		13.1		13.8		14.1

Average Monthly Sunshine

Years on Record: 9

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		166.4		230.3		194		204.8		163.6		152.3		127.4		140.2		152.5		132.6		168.8		162		168.4

Average Number of Days With Fog

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		26.5		0.7		0.9		0.6		1.3		0.9		2.2		3.6		3		2.8		3.6		3.9		3

Average Percent of Cloud Cover

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		70		66.3		66.3		65		67.5		70		72.5		71.3		71.3		71.3		72.5		73.8		72.5

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.4		7.4		6.6		6		4.8		3.8		3.3		3.6		4.4		5.2		6.1		6.8		6.6

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		2.2		2.1		1.7		1.4		1.2		1.1		1.1		1.3		1.7		2		2.3		2.5

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.6		6.6		6.2		6.3		5.5		4.6		4.2		4.5		5.2		5.6		6		6.2		5.9

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.9		7.5		6.6		6.7		5.8		5.1		4.7		5		5.5		5.6		6.1		6.5		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		5.4		7.4		6.6		6		4.8		3.8		3.3		3.6		4.4		5.2		6.1		6.8		6.6

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.9		2.6		2.4		2		1.7		1.3		1.2		1.2		1.5		1.9		2.3		2.5		2.7

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.4		7.6		7.1		7.1		6.4		5.3		4.9		5		6		6.3		6.9		7		7

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		7.5		9.8		8.4		8.3		7.4		6.3		5.8		5.8		6.9		6.9		7.9		8.2		8.6

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.4		5.9		4.5		5.1		3.5		3.4		2.9		3.2		3.7		4.4		4.9		5.8		5

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		1.7		1.8		1.4		1.2		1		0.9		1		1.1		1.5		1.7		2		2

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.5		5.4		4.3		5.2		3.8		4		3.5		3.8		4.3		4.6		4.7		5.4		4.6

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.9		4.7		3.1		4.7		3.1		4.1		3.5		3.9		4		4		3.9		4.8		3.4