WINDHOEK, NAMIBIA

Average Temperature

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		69		77		74		72		68		63		57		57		62		69		73		77		78

Average High Temperature

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		78		84		81		79		77		73		68		68		73		79		82		85		86

Average Low Temperature

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		60		69		66		64		59		53		47		46		51		59		64		68		70

Highest Recorded Temperature

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		102		98		93		92		87		83		78		79		90		90		91		102		100

Lowest Recorded Temperature

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		30		46		52		50		39		37		31		30		30		33		43		48		50

Average Number of Days Above 90F/32C

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		26		7		1		---		---		---		---		---		---		---		2		6		9

Average Number of Days Above 80F/26C

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		165		25		18		18		9		2		---		---		2		17		23		25		27

Average Number of Days Below 45F/7C

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		34		---		---		---		---		2		12		13		5		2		---		---		---

Average Precipitation

Years on Record: 100

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		14.4		3.1		3.2		3.1		1.5		0.3		---		---		---		0.1		0.5		1.1		1.6

Average Number of Days With Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		53		11		10		9		5		1		---		---		1		1		4		5		6

Average Number of Days With Thunderstorms

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		32		7		6		6		3		---		---		---		---		---		3		3		4

Most Rain Reported in a Month

Years on Record: 100

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		30.7		12.2		11.9		12.3		6.7		4.9		0.8		1.2		1.8		2.1		2.4		5.9		6.3

Least Recorded Rainfall

Years on Record: 100

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		3.6		0.1		---		---		---		---		---		---		---		---		---		---		---

Average Relative Humidity

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		35.8		45		50		50		45		35		35		30		25		25		25		30		35

Average Morning Relative Humidity

Years on Record: 4

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		52		64		72		69		67		55		50		42		39		34		38		44		51

Average Evening Relative Humidity

Years on Record: 5

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		27		39		47		41		34		26		23		19		16		15		19		21		27

Average Dew Point

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		37		48		53		50		44		35		27		24		23		26		32		37		43

Heating Degree Days

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		628		---		---		---		---		62		225		248		93		---		---		---		---

Cooling Degree Days

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2004.1		356.5		240.1		201.5		90		---		---		---		---		120		248		345		403

Growing Degree Days

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6854.9		821.5		663.9		666.5		540		403		225		217		372		570		713		795		868

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.5		13.7		13.2		12.6		11.9		11.4		11.2		11.3		11.8		12.4		13		13.6		13.9

Average Daily Sunshine

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		8.1		5		5		5		7		9		9		9		11		12		11		9		5

Average Number of Days With Fog

Years on Record: 12

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

Average Wind Speed

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		8		9		6		6		5		6		6		6		6		6		8		9		9

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.2		6.9		6.5		6.2		5.6		5.2		4.8		5		5.8		6.7		6.9		7.2		7.4

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.4		2.3		2.1		1.7		1.2		0.7		0.5		0.6		0.8		1.1		1.8		2.1		2.2

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.6		6.2		6.2		6.4		6.4		6.7		6.4		6.4		7.1		7.2		6.7		6.5		7.3

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		7.7		6.5		6.3		6.8		7.2		8.4		8.6		8.6		8.9		8.6		7.5		7.2		7.5

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.2		6.9		6.5		6.2		5.6		5.2		4.8		5		5.8		6.7		6.9		7.2		7.4

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.7		2.5		2.4		1.9		1.6		0.9		0.8		0.8		0.9		1.5		2.1		2.5		2.6

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		7.3		7.1		7.1		7		7.2		7.3		6.7		6.8		7.5		7.7		7.7		7.5		8.1

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		9.1		8.6		8.2		8		8.8		9.5		9.3		9.3		9.5		9.6		9.6		9.5		9

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.5		6.3		5.6		5.7		4.7		4.8		4.3		4.7		5.5		6		5.9		5.9		6.2

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.2		2		1.8		1.5		0.9		0.5		0.4		0.5		0.6		0.9		1.3		1.7		1.9

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.8		5.7		5.3		5.8		5.3		6.1		5.6		5.9		6.6		6.4		5.7		5.5		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		6.1		5.4		4.6		5.7		5.2		7.3		7		7.6		7.9		7.1		5.5		4.9		5.2