DIEGO GARCIA, INDIAN OCEAN ISLAND

Average Temperature

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		27		27		27		28		28		28		27		26		26		26		27		27		27

Average High Temperature

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		29		29		30		30		30		30		28		28		28		28		28		29		30

Average Low Temperature

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		25		25		25		25		26		25		25		24		24		24		24		25		25

Highest Recorded Temperature

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		38		38		37		37		38		37		35		38		32		32		37		34		37

Lowest Recorded Temperature

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		18		21		21		21		22		22		21		21		20		20		18		22		18

Average Number of Days Above 86F/30C

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		184		17		19		25		24		22		11		6		4		8		13		16		19

Average Number of Days Below 75F/23C

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		125		11		8		6		4		5		9		15		17		15		13		11		10

Average Number of Days With Precipitation

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		244		23		20		20		20		18		18		20		19		20		23		20		23

Average Number of Rainy Days

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		244		23		20		20		20		18		18		20		19		20		23		20		23

Average Number of Days With Thunderstorms

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		16		2		2		2		2		1		---		1		1		---		1		2		2

Average Morning Relative Humidity

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		84		85		84		83		84		83		84		84		83		85		85		85		85

Average Evening Relative Humidity

Years on Record: 20

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

Average Dew Point

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		23		23		23		23		23		23		22		22		22		22		23		23		23

Cooling Degree Days

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3480.8		275.6		266.8		301.4		300		292.8		258.3		249.7		249.7		250		258.3		266.7		284.2

Growing Degree Days

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6731.3		533.9		502.2		559.7		550		551.1		508.3		508.1		508.1		500		516.7		516.7		542.5

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.5		12.9		12.7		12.5		12.3		12.1		12.1		12.1		12.2		12.4		12.6		12.8		12.9

Average Number of Days With Fog

Years on Record: 22

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

Average No. of Days With Vision Obstruction

Years on Record: 22

		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 Wind Speed

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
km/h		14		14		16		12		9		14		16		17		19		17		16		12		12

Average No. of Days With Blowing Dust/Sand

Years on Record: 22

		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 Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.3		20.1		21.6		22.4		21.4		19.1		17.7		17.9		19.1		19.9		21.1		21.5		21.9

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		7		7.9		7.9		7.4		6.4		5.9		5.6		5.8		6.5		7.5		7.8		7.6		7.3

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.5		20.1		21.4		22.1		21.7		19.9		18.5		18.6		19.6		19.8		20.8		21.4		22

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.8		17.8		19.6		21.2		22		20.8		19.7		19.3		19		17.9		18.8		20		21.5

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.3		20.1		21.6		22.4		21.4		19.1		17.7		17.9		19.1		19.9		21.1		21.5		21.9

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		7.6		8.4		8.6		8		7.1		6.4		6.3		6.4		7.2		8		8.4		8.3		8.1

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		23.8		23.2		25.1		24.3		25.6		22.4		20.8		21.7		23		22.9		23.8		26.2		26.1

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		26		23.3		26.3		25.5		29.9		25.9		24.1		25.4		25.7		23.3		24.3		29.2		29.5

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.1		15.6		16.7		20.1		19.3		17.1		14.5		15.3		15.5		15.3		18		18.4		18.9

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.9		7.2		6.8		6.7		4.9		5		4.9		4.8		5.4		6.6		7		6		5.9

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.1		15.6		16.6		19.8		19.5		17.6		15		15.8		15.7		15.2		17.8		18.3		19

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14		10.6		11.6		17.1		17.9		16.6		13.2		14.2		12.5		10.4		13.6		14.7		16.1