EL POTRERO, ZACATECAS

Average Temperature

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		16.1		10.8		12.2		14.1		17		19.8		20.4		19.6		19.4		18		16.6		13.4		11.3

Average High Temperature

Years on Record: 34

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		25.1		20.4		22.1		24.8		27.7		30		28.7		27		26.4		25		25		23.1		20.5

Average Low Temperature

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		7		1.2		2.3		3.6		6.2		9.4		11.9		12.2		12.3		11.1		8.1		3.8		2

Highest Recorded Temperature

Years on Record: 34

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		39		29		30		32		36		37		38		39		35		33		32		31		31

Lowest Recorded Temperature

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-13		-8		-7		-5		-3		---		3		5		4		4		---		-5		-13

Average Precipitation

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		485		19		8		4		6		16		54		104		112		97		37		15		14

Average Number of Days With Hail

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.7		---		0.1		---		---		0.2		0.1		0.3		---		---		---		---		---

Most Reported Precipitation in a Month

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		394		108		51		19		68		91		122		390		394		264		122		48		51

Most Precipitation Reported in a Day

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		76.5		26		26.5		10		36.5		42.1		52.5		76.5		70		76		63		31.5		25

Average Number of Rainy Days

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		59.7		2.9		1.3		1		1.1		2.8		7		12.5		12.6		9.6		5.3		1.8		1.8

Average Number of Days With Thunderstorms

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6.5		0.2		---		0.5		0.4		0.2		0.6		1.8		0.8		0.9		0.6		0.4		0.1

Heating Degree Days

Years on Record: 34

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1181.3		233.4		173.4		128.3		40.8		---		---		---		---		8.3		55.1		146.7		219.6

Cooling Degree Days

Years on Record: 34

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		172		---		---		---		---		42.2		59.2		39.6		31		---		---		---		---

Growing Degree Days

Years on Record: 34

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2241.3		25		62		130.1		209.2		300.6		309.2		297.9		289.3		241.7		203.2		103.3		38.8

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		14		13.8		13.3		12.6		12		11.4		11.1

Average Number of Days With Fog

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		22.5		1.2		0.5		0.4		0.2		0.3		1.3		4		5.1		4.4		2.5		1.3		1.3

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.8		15.7		19.1		23.6		25.2		25.6		24.8		22.5		21.8		19.7		19.3		17.4		14.9

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.6		3.6		4.1		4.5		6		7.1		7.8		8.2		7.6		6.7		4.7		3.4		3.3

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		19.8		23.1		25.7		24.6		23.3		22		20.4		20.6		20.2		22.3		22.5		19.4

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		24.7		23.9		26.5		30.2		28.2		26.6		24.5		20.7		20.7		19.9		24.7		26.7		23.8

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.8		15.7		19.1		23.6		25.2		25.6		24.8		22.5		21.8		19.7		19.3		17.4		14.9

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.5		4.8		5.2		6.2		7.5		7.8		8.5		8.9		8.1		7.3		5.8		4.1		4.4

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		24.7		23.6		27		28.2		28.2		25.1		23.8		22.5		22.4		22.3		25.7		24.8		22.1

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		30		31.1		33.8		35.1		36.2		30.9		29		25.3		24.4		23.7		30.8		30.7		28.8

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.9		11.6		16.4		19.8		21.4		23.6		22.6		18.1		19.9		17.1		16.3		15.8		11.8

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.6		2.4		2.6		3.4		4.2		6.2		7		7.5		7		6.1		3.6		2.6		2.5

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.5		13.7		19.2		21.2		20.8		21.6		20.3		16.7		18.8		17.4		18.4		20.1		14.4

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.2		13.4		19.7		21.6		20.5		22.8		20.4		13.3		17.2		15		17.8		22.4		15.1