CHANGSHA, CHINA

Average Temperature

Years on Record: 4

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		17		5		6		10		17		22		25		29		28		23		18		13		8

Average High Temperature

Years on Record: 4

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		20		7		8		12		20		25		28		32		32		26		22		16		11

Average Low Temperature

Years on Record: 4

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		14		3		3		7		13		18		22		26		25		21		15		9		4

Highest Recorded Temperature

Years on Record: 4

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		43		17		26		29		31		33		35		37		43		35		30		26		22

Lowest Recorded Temperature

Years on Record: 4

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-7		-5		-7		---		3		12		13		20		18		15		8		-1		-1

Average Number of Days Above 90F/32C

Years on Record: 4

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		51		---		---		---		---		3		7		21		18		2		---		---		---

Average Number of Days Above 80F/26C

Years on Record: 4

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		120		---		---		1		5		14		22		29		29		17		4		---		---

Average Number of Days Below 45F/7C

Years on Record: 4

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		107		29		25		16		2		---		---		---		---		---		---		9		26

Average Number of Days Below 32F/0C

Years on Record: 4

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10		5		3		---		---		---		---		---		---		---		---		1		1

Average Precipitation

Years on Record: 80

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1370		50		90		130		170		210		200		110		110		60		80		70		40

Average Number of Days With Thunderstorms

Years on Record: 3

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		25		---		2		2		3		2		4		5		5		1		1		---		---

Most Rain Reported in a Month

Years on Record: 80

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		2110		140		200		260		320		430		490		340		370		190		260		190		150

Least Recorded Rainfall

Years on Record: 80

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		820		---		20		40		40		70		50		---		---		---		---		---		---

Average Morning Relative Humidity

Years on Record: 4

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		90		90		90		92		89		90		91		86		90		92		92		90		86

Average Evening Relative Humidity

Years on Record: 4

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		70		78		78		75		68		71		71		64		66		71		71		65		62

Average Dew Point

Years on Record: 4

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		13		2		3		7		12		18		21		23		23		20		15		8		3

Heating Degree Days

Years on Record: 4

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1764.8		404.7		345.3		249.7		33.3		---		---		---		---		---		---		158.3		318.6

Cooling Degree Days

Years on Record: 4

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1184.1		---		---		---		---		111.9		216.7		344.4		327.2		166.7		17.2		---		---

Growing Degree Days

Years on Record: 4

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3034.7		---		---		8.6		216.7		370.3		466.7		602.8		585.6		416.7		275.6		91.7		---

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		14.2		13.5		12.7		11.9		11.2		10.8

Average Number of Days With Fog

Years on Record: 3

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		272		23		17		20		21		21		20		22		25		24		25		25		29

Average Wind Speed

Years on Record: 4

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

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.1		7.7		7.9		9.1		11.9		14.3		15.1		18.4		16.7		14		11.2		10		8.8

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.5		4.2		5		6		7.5		8.5		8.9		8.8		8.2		7.1		5.8		4.6		4

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.3		9		8.7		9.3		11.4		13.3		13.8		16.8		15.9		14.2		12.4		11.9		11.1

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.2		7.2		5.5		5		6.7		8.4		9		14		12.6		10.8		9.6		11		10.6

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.1		7.7		7.9		9.1		11.9		14.3		15.1		18.4		16.7		14		11.2		10		8.8

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.8		4.4		5.4		6.6		8		8.8		9.1		9		8.3		7.2		5.9		4.7		4.1

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.9		13.3		11.8		11.8		15.3		16.7		16.9		19.7		18.4		18.2		15.8		16.7		16.7

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.5		13.2		9.1		7.8		11.7		13.5		14		19.5		16.6		17		14.4		18.4		19.3

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		8.8		5.5		5.2		6.6		9.2		9.5		10.1		14		13.3		11.4		7.8		6.7		5.5

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		3.8		4		5.1		6.7		7.2		7.6		8.5		8		6.8		5.2		4.1		3.5

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		8.7		6		5.4		6.6		8.8		9		9.4		13		12.7		11.4		8.3		7.3		6.2

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.6		3.6		2.2		2.5		3.7		3.4		3.7		7.8		7.8		7		4.6		4.9		4.1