CERRO ALTO, GUANAJUATO

Average Temperature

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		17.8		13.4		14.9		17.4		19.7		21.5		21.2		19.8		19.5		19.1		17.6		15.4		13.9

Average High Temperature

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		26.9		23.2		25.2		28.3		30.5		31.5		29.2		26.9		26.7		26.3		26.1		25.2		23.5

Average Low Temperature

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		8.7		3.5		4.5		6.6		9		11.5		13.2		12.6		12.3		11.8		9.1		5.7		4.3

Highest Recorded Temperature

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		40		31		35.5		37.5		38.5		38.5		40		35		36.5		36.5		33.5		34.5		33

Lowest Recorded Temperature

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-5.5		-5		-5.5		-1		0.5		4		4.5		4.5		2.5		-2		-0.5		-3		-4

Average Precipitation

Years on Record: 11

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		690		16		7		6		11		34		118		147		153		126		49		13		10

Average Number of Days With Hail

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.9		---		---		---		0.1		0.3		0.2		0.5		0.4		0.2		0.1		0.1		---

Most Reported Precipitation in a Month

Years on Record: 11

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		373		166		50		82		98		99		326		373		361		292		165		68		50

Most Precipitation Reported in a Day

Years on Record: 11

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		200		41		36		31		37.2		42		107		200		115		78		93		37.2		25.3

Average Number of Rainy Days

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		64.1		2.1		1.1		0.9		1.7		4.1		10.1		13.1		12.4		9.9		5.3		1.6		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		13.2		0.4		0.2		0.2		0.4		1		2.5		2.2		2.5		2.1		1.2		0.3		0.2

Heating Degree Days

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		636.1		154.2		98.1		27.6		---		---		---		---		---		---		22.4		85.8		137.8

Cooling Degree Days

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		328.3		---		---		---		42.5		98.2		86.7		43.9		36.2		20.8		---		---		---

Growing Degree Days

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2942.7		104.2		137.3		230.8		292.5		356.5		336.7		302.3		294.5		270.8		235.9		164.2		120.6

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		11.9		12.4		13		13.6		13.8		13.7		13.2		12.6		12		11.5		11.3

Average Number of Days With Fog

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6.7		0.4		0.1		0.1		0.2		0.3		1		0.8		1.3		1.6		0.5		0.2		0.2

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.8		16.8		20.3		23.9		24.8		24.7		22.9		21.8		21.6		19.5		19.1		18.2		16.4

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.9		3.8		4.2		4.9		6.4		7.4		8.1		8.3		7.7		7		5.4		3.7		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		22.1		21		23.6		25.4		24.1		22.6		22.8		21.5		20.4		19.8		21.3		22.4		20.3

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		24.3		27.2		29.3		26.8		24.7		21.2		19.4		20		18.7		22.5		26.3		25.2

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.8		16.8		20.3		23.9		24.8		24.7		22.9		21.8		21.6		19.5		19.1		18.2		16.4

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.7		5.2		5.1		6.3		7.2		8.2		8.8		8.9		8.2		7.5		6.2		4.7		4.2

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		24.1		27.4		27.9		27.5		24.5		25.1		24.1		21.9		21.6		25		24.1		23.1

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		28.8		29.9		34.4		34.2		34.4		29		25.5		24.1		22.9		22		29.3		29.4		30.9

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.2		12.4		18.3		20.7		22.8		22.3		19.9		17.8		19.4		17.4		16.5		15.8		14.6

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		2.9		2.8		3.8		4.6		6.5		7.4		7.6		7.3		6.5		4.1		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		19		14.6		20.9		21.7		22.1		20.6		19.7		17.5		18.3		17.5		18.1		19		17.5

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		13.6		22.4		22.2		22.7		20.2		16		12.8		16		14.8		17		20.3		20.1