GUANAJUATILLO, SAN LUIS POTOSI

Average Temperature

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		18.6		14		15.4		18.4		20.8		22.4		21.7		20.7		20.6		19.9		18.3		16.2		14.4

Average High Temperature

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		26.6		23.2		24.8		28.1		29.9		30.9		28.7		27.1		27.1		26.1		25.6		24.5		22.9

Average Low Temperature

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		10.5		4.8		6		8.8		11.7		13.9		14.7		14.3		14.1		13.6		11		7.8		5.8

Highest Recorded Temperature

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		39		35		33		37.5		37		39		37		37		33		33		37		31.5		32

Lowest Recorded Temperature

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-5		-5		-4.5		-1.5		2.5		5.5		5		8.5		7		4		-1		-3		-4.5

Average Precipitation

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		370		11		9		8		19		34		54		72		53		67		24		9		10

Average Number of Days With Hail

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.1		0.1		---		0.2		0.2		0.5		0.2		0.3		0.1		0.1		0.2		0.2		---

Most Reported Precipitation in a Month

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		306		95		114		73		130		108		201		306		227		221		68		48		58

Most Precipitation Reported in a Day

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		76.1		26.5		42.5		30		28		35.7		60		59.3		73.7		76.1		36.2		35.5		45

Average Number of Rainy Days

Years on Record: 28

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		52.8		2.2		1.8		1.6		3.5		5.6		6.9		7.8		6.2		8.5		4.8		2		1.9

Average Number of Days With Thunderstorms

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		27		0.9		1		0.9		2.2		3.9		3.1		3.3		3.1		2.7		2.6		1.9		1.4

Heating Degree Days

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		507.4		134.3		83.2		---		---		---		---		---		---		---		0.9		65.8		124

Cooling Degree Days

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		494.6		---		---		3.4		74.2		125.7		101.7		73.2		70.6		45.8		---		---		---

Growing Degree Days

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3237.8		124		152.2		261.8		324.2		384.1		351.7		331.6		328.9		295.8		257.5		184.2		134.3

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.5		11.4		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: 24

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		21.3		2		1.1		1.1		1.1		2.1		1.3		1.9		1.5		2.1		2.6		2.6		1.9

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.8		15.3		18.4		22		23.2		24		23		21.8		21.7		18.5		18		16.6		14.7

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.2		4.2		4.8		5.6		7		7.7		8.2		8.3		7.7		7.2		5.5		4.2		3.9

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.7		18.4		21.4		23.4		22.5		22		22.8		19.9		20.5		18.8		20.1		20.5		18.1

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		21.6		21.2		23.2		25.3		23.7		23.4		21.4		19.4		20.3		17.1		20.5		23		21.2

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.8		15.3		18.4		22		23.2		24		23		21.8		21.7		18.5		18		16.6		14.7

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.9		5.2		5.4		6.5		7.7		8.3		8.8		8.9		8.2		7.6		6.2		4.9		4.7

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		23.5		22.4		25.9		25.1		24.8		23.8		26.2		22.1		22.1		20.9		24.3		22.9		21.4

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		27		28.8		31.5		28.7		28.4		27.5		27.8		24.3		23.5		20.8		28		27.3		27.4

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17		10.5		16.9		19.7		20.8		22		20.1		17.4		19		15.8		15.6		14.8		11.9

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.3		3		3.3		5		6		6.9		7.1		7.6		7.2		6.7		4.3		3.5		3

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.6		11.8		19.3		20.7		20.2		20.3		19.8		16.1		18		15.8		17		17.8		14.1

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.1		10.2		19.6		20.4		19.1		19.6		16.2		12.2		15.6		12.4		15.4		18.4		14.3