LOS CONOS, ZACATECAS

Average Temperature

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		16.8		12		13.5		15.8		18.4		20.5		20.6		19.3		18.8		18.3		16.9		14.3		12.6

Average High Temperature

Years on Record: 34

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		25.7		22.1		23.8		26.6		28.8		30.2		28.6		26.2		25.7		25.2		25.1		24.1		22.5

Average Low Temperature

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		7.8		2		3.2		5		8		10.8		12.7		12.4		12		11.5		8.7		4.6		2.7

Highest Recorded Temperature

Years on Record: 34

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		39		30		33.5		34		38		39		38		34		34		32		32		33		31

Lowest Recorded Temperature

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-8		-8		-6		-5		-3		2		5		5		4		2		-3		-8		-8

Average Precipitation

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		484		18		10		4		8		21		72		123		112		65		33		9		8

Average Number of Days With Hail

Years on Record: 60

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

Most Reported Precipitation in a Month

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		347		169		113		37		53		66		281		325		347		196		117		50		47

Most Precipitation Reported in a Day

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		83.4		52		42.9		23		28.3		30		67		74.6		77.1		83.4		52.2		42.5		27.5

Average Number of Rainy Days

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		51.8		2.5		1.7		0.7		1.3		3.3		7.2		10.9		10		7.2		3.9		1.5		1.6

Average Number of Days With Thunderstorms

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.5		---		---		---		---		---		---		0.1		0.1		0.1		0.1		---		0.1

Heating Degree Days

Years on Record: 34

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		892		194.6		136.6		78.4		---		---		---		---		---		---		43.9		119.2		177.4

Cooling Degree Days

Years on Record: 34

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		186.3		---		---		---		1.7		67.2		70		30.2		16.4		0.8		---		---		---

Growing Degree Days

Years on Record: 34

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2544.7		63.7		98.9		180		251.7		325.5		320		288.5		274.7		250.8		214.4		130.8		80.9

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.5		11.4		11.8		12.4		13.1		13.6		13.9		13.7		13.2		12.6		12		11.5		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		1.1		0.1		0.1		---		---		---		0.1		0.2		0.1		0.1		0.2		0.1		0.1

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		16.3		19.7		23.3		24.4		24.8		23.6		22.5		22.2		19.6		19		17.8		15.8

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.8		3.8		4.3		5		6.5		7.4		8		8.1		7.5		7		5.2		3.6		3.5

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		21.9		19.8		23.1		24.9		23.7		22.7		23.4		20.5		21		19.9		21.4		22.3		19.8

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		23.8		23.8		26.4		28.3		26.1		24.9		22.4		20.7		21.2		19		22.8		26.2		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		16.3		19.7		23.3		24.4		24.8		23.6		22.5		22.2		19.6		19		17.8		15.8

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.7		5		5.2		6.3		7.5		8.2		8.6		8.9		8.1		7.5		5.9		4.6		4.3

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		24.5		23		27.6		27.6		27.1		24.1		26.1		22.9		22.5		21.8		24.9		23.6		22.7

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		29.1		29.9		34.9		33.7		33.6		28.2		27.5		26		24.4		22.5		29.3		28.6		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		18		12.2		17.6		20.4		21.8		22		21.3		18.1		19.8		17		16.8		15.6		13.7

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.9		2.8		2.6		3.8		4.9		6.8		7.1		7.3		7		6.4		4		3.2		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		18.8		14		20.3		21.5		21.1		20.3		21		16.7		18.7		17.2		18.5		18.9		16.6

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.1		13.7		21.3		21.9		20.9		19.8		18.2		13.3		16.8		14.4		17.9		20.3		18.5