CHUMPHON, THAILAND

Average Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		27		25		26		27		28		28		27		27		27		27		27		26		25

Average High Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		31		30		31		32		33		32		31		31		30		30		30		29		29

Average Low Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		23		21		22		22		24		24		24		24		24		23		23		22		21

Highest Recorded Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		39		38		36		37		39		38		39		37		37		34		36		37		37

Lowest Recorded Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		12		12		16		17		20		22		22		21		22		22		18		16		12

Average Number of Days Above 95F/35C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		18		---		---		3		10		4		1		---		---		---		---		---		---

Average Number of Days Above 86F/30C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		288		24		25		30		29		28		24		25		23		23		23		18		17

Average Number of Days Below 75F/23C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		252		31		27		28		14		10		11		16		17		18		24		27		30

Average Number of Days Below 65F/18C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8		3		1		---		---		---		---		---		---		---		---		1		4

Average Precipitation

Years on Record: 79

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		2030		80		60		70		100		180		170		190		190		160		300		330		160

Average Number of Days With Thunderstorms

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		65		---		1		3		7		14		6		5		3		8		9		7		2

Most Rain Reported in a Month

Years on Record: 79

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		2950		630		340		500		570		490		350		670		610		370		610		790		780

Least Recorded Rainfall

Years on Record: 79

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1290		---		---		---		---		30		---		40		60		50		120		10		---

Average Morning Relative Humidity

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		94		94		94		94		93		94		93		94		93		94		95		94		92

Average Evening Relative Humidity

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		68		65		63		60		61		70		72		70		73		72		74		73		67

Average Dew Point

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		22		21		22		22		23		23		23		23		23		23		23		22		21

Cooling Degree Days

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3410.5		223.9		235.4		292.8		325		310		283.3		292.8		284.2		266.7		275.6		233.3		215.3

Growing Degree Days

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6660.7		482.2		470.8		551.1		575		568.3		533.3		551.1		542.5		516.7		533.9		483.3		473.6

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		12.2		12.4		12.7		13		13.1		13		12.8		12.5		12.2		12		11.9

Average Number of Days With Fog

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		169		26		24		27		21		9		4		5		4		5		9		13		22

Average Wind Speed

Years on Record: 18

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

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.7		17.5		19.8		21.1		20.7		16.9		14.9		15.4		14.3		15.1		14.7		14.2		16

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		7.3		6		6.5		7.2		8		8.1		8		8		8.1		8.1		7.4		6.7		6

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.9		18.7		20.6		21.1		20.1		16.8		14.8		15.3		14		14.9		14.9		14.8		17.1

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.1		18.9		20.4		20		18		12.7		10.2		10.6		8.8		10		10.9		12.1		16.8

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.7		17.5		19.8		21.1		20.7		16.9		14.9		15.4		14.3		15.1		14.7		14.2		16

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		6.5		7.1		8		8.5		8.3		8.1		8.1		8.3		8.1		7.5		6.8		6.4

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.8		20.6		22.5		24		22.8		20.6		18		19.8		16.7		16.9		18.3		17.9		19.7

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.8		22.4		23.9		25.4		23.1		18.6		14.7		17.6		12.2		12.7		16		17		21.4

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.3		15.6		17		17.5		14.7		11.7		11.9		12.3		11		12.2		11.4		10.7		13.3

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.9		5.5		5.9		6.3		7.2		7.7		7.6		7.7		7.6		7.7		7.2		6.4		5.4

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.4		16.4		17.6		17.5		14.3		11.5		11.7		12.2		10.8		12.1		11.5		11		14

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		8.9		14.9		15.2		13.9		8.9		5.7		6.2		6.6		4.9		6.4		6.4		6.8		11.6