SAN PEDRO DE LA SIERRA, ZACATECAS

Average Temperature

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		17.4		12.1		13.9		16.4		18.8		20.9		21.2		19.4		19.1		19		18.1		15.8		13.7

Average High Temperature

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		25		19.6		22.2		25.1		27.8		29.8		28.9		25.8		25.3		25.3		25.3		23.5		21.2

Average Low Temperature

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9.7		4.5		5.6		7.6		9.8		12		13.6		13		12.8		12.8		10.9		8		6.3

Highest Recorded Temperature

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		39.5		29		30		32.5		39		39.5		38		37		33		33		39		32		29

Lowest Recorded Temperature

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-6		-6		-3		-1		---		5		5		4.5		6		6.5		1		-3		-5.5

Average Precipitation

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		518		34		7		---		4		4		74		129		135		68		33		11		20

Average Number of Days With Hail

Years on Record: 34

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.6		---		0.1		---		---		0.1		0.3		0.3		0.3		0.3		0.1		0.1		---

Most Reported Precipitation in a Month

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		262		262		65		4		37		41		178		260		201		167		90		86		58

Most Precipitation Reported in a Day

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		65		57		50		4		22		22.5		30		65		51		42		65		57		40

Average Number of Rainy Days

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		67		3.1		1		0.2		0.5		1		9.7		16.4		16.7		10.2		4.3		1.4		2.5

Average Number of Days With Thunderstorms

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		29.8		0.8		0.5		0.2		0.7		1.9		4.2		5.5		5.7		4.9		3.2		1.7		0.5

Heating Degree Days

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		721.7		194.6		124.8		61.2		---		---		---		---		---		---		7.8		77.5		142.1

Cooling Degree Days

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		255.1		---		---		---		13.3		79.2		87.5		32.7		21.6		20.8		---		---		---

Growing Degree Days

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2784.2		63.7		110.7		197.2		263.3		337.6		337.5		291.1		279.9		270.8		250.6		172.5		116.3

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.5		11.3		11.8		12.4		13.1		13.7		13.9		13.8		13.3		12.6		12		11.4		11.2

Average Number of Days With Fog

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		14.6		0.6		0.2		---		0.1		0.1		1.6		2.5		3.9		3.1		0.8		0.8		0.9

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.7		16.2		19.7		24.2		25.6		25.3		23.4		21.3		20.9		19.3		19.3		17.7		15.4

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.7		3.6		4		4.4		5.9		7.2		8.1		8.5		7.8		6.9		4.9		3.5		3.4

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		22		20.1		23.5		26.1		24.9		23.1		23		19.4		19.7		19.7		22		22.6		19.7

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		24.2		24.4		27.1		30.9		28.8		26.1		21.9		18.5		18.9		18.8		24		26.7		24.3

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.7		16.2		19.7		24.2		25.6		25.3		23.4		21.3		20.9		19.3		19.3		17.7		15.4

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.6		4.9		5.3		5.9		7.1		8		8.8		8.9		8.3		7.5		5.9		4.1		4.5

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		24.7		24		27.3		28.6		29.2		25.2		25.5		21.1		21.3		22.1		25.7		23.9		22.8

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		29.6		31.8		34.3		35.9		38.5		31		26.6		22		21.9		23.1		30.9		29.1		30

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.7		12.2		16.6		20.8		22.6		22.9		20.7		17.1		18		16.3		16.3		16.2		12.4

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.7		2.3		2.6		3.3		3.6		6.2		7.4		8		7.4		6.3		3.6		3.1		2.4

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.5		14.3		19.1		22.2		22		21.1		20.3		15.8		17		16.5		18.2		20.3		15.1

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.8		14.2		19.5		23.3		22.8		21.4		17.2		11.7		14		13.5		17.4		22.7		16