PIEDRA DE CAL, OAXACA

Average Temperature

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		17.9		15.4		16.4		18.3		19.9		20.3		19		18.4		18.3		18.6		18.2		16.6		15.5

Average High Temperature

Years on Record: 56

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		26.4		25.3		26.1		27.8		28.7		28.2		25.9		25.6		25.8		25.7		26.2		26.1		25.2

Average Low Temperature

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9.4		5.6		6.7		8.8		11.2		12.3		12		11.3		10.9		11.5		10.1		7.1		5.8

Highest Recorded Temperature

Years on Record: 56

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		39		33		37		39		37		36		33		33		33		33		33		39		33

Lowest Recorded Temperature

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-4		-3		-1.5		---		5		4		5		0.8		4		5		2		-4		-4

Average Precipitation

Years on Record: 23

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		718		8		6		4		15		43		139		158		139		138		53		10		5

Average Number of Days With Hail

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.6		0.1		---		0.1		0.2		---		0.1		0.1		---		---		---		---		---

Most Reported Precipitation in a Month

Years on Record: 23

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		428		73		53		32		76		116		265		428		282		304		167		43		39

Most Precipitation Reported in a Day

Years on Record: 23

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		70		70		46		16		58		50		50		60.1		50		58.7		60		20		30

Average Number of Rainy Days

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		85		1.4		0.9		0.6		2.2		6.3		15.3		15.6		16.5		15		7.2		2.3		1.7

Average Number of Days With Thunderstorms

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4.2		0.1		---		---		0.1		0.8		0.5		0.7		0.7		0.7		0.4		0.2		---

Heating Degree Days

Years on Record: 56

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		360.5		89.6		54.2		1.7		---		---		---		---		---		---		5.2		51.7		87.8

Cooling Degree Days

Years on Record: 56

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		138.6		---		---		---		49.2		59.4		18.3		3.4		---		8.3		---		---		---

Growing Degree Days

Years on Record: 56

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3028.8		168.8		181.3		256.6		299.2		317.8		268.3		261.8		258.3		258.3		253.2		198.3		170.5

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.5		11.7		12		12.4		12.9		13.3		13.5		13.4		13		12.6		12.1		11.7		11.6

Average Number of Days With Fog

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		17.4		3.7		1.5		0.6		0.2		0.1		0.1		0.8		1.5		1.6		1.4		1.7		4.2

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.4		12		14.4		18.7		21.1		21		19.3		18.1		17.8		16.2		14.4		12.9		11.4

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		7.2		5.7		6.5		7.2		7.8		8.2		8.5		8.6		8.4		7.8		6.8		5.9		5.5

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.8		13.3		15.4		19.2		20.4		20.4		19.4		18.1		17		16.1		15.1		14.3		12.7

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		11.2		12.9		17.3		19.1		18.2		15.6		13.7		13.4		12.4		11.9		12.1		10.7

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.4		12		14.4		18.7		21.1		21		19.3		18.1		17.8		16.2		14.4		12.9		11.4

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		7.5		5.8		6.7		7.6		8.3		8.7		8.7		8.6		8.5		7.8		7		6		5.5

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.9		17		22.5		23.7		22.8		23.4		21.7		20.1		19.3		18.5		17.8		16.5		15.1

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.1		16.9		24.8		25.4		23.6		23.6		19.3		16.7		17.5		16		15.9		15.6		14.3

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.4		7.9		10.9		14.7		17.9		18.5		17.1		14.8		15.3		12.7		10.2		11.4		9.2

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.7		5.3		5.1		5.9		7.1		7.5		8.1		8.3		8.1		7.6		6.5		5.7		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		13.5		8.3		11.4		14.9		17.3		17.9		17.1		14.7		14.6		12.5		10.5		12.4		10

Minimum 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		4.8		7.3		10.6		13.7		14		12.1		9		9.8		7.4		5.9		9.4		7