LAS PIEDRAS, SAN LUIS POTOSI

Average Temperature

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		22.9		16.9		18.5		21.6		24.9		26.8		27		26		26.4		25.4		23.1		20.1		17.7

Average High Temperature

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		28.9		23.1		25.3		28.7		32.1		33.1		32.7		31.2		31.8		30.5		28.5		25.9		23.7

Average Low Temperature

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		16.8		10.7		11.6		14.4		17.6		20.5		21.3		20.8		21		20.3		17.7		14.4		11.8

Highest Recorded Temperature

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		48		38		41.5		46		48		48		44		40		39.5		39		38		38		38

Lowest Recorded Temperature

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-4		-2		1		2		---		9		14		14		15		5		---		1		-4

Average Precipitation

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1493		26		24		22		44		100		256		287		236		290		125		52		31

Average Number of Days With Hail

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.2		---		---		---		---		---		---		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		898		97		108		96		306		299		874		898		615		599		322		244		135

Most Precipitation Reported in a Day

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		290		30		43		63		102.5		123		170		290		271.5		226		127		96		96

Average Number of Rainy Days

Years on Record: 28

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		71.6		3.2		3		2.8		3		5.5		9.3		10.9		9.2		11.1		6.7		4		2.9

Average Number of Days With Thunderstorms

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		63.8		4.7		5		5.7		7.1		7.8		7.5		5.2		5.1		4.2		3.4		3.7		4.4

Heating Degree Days

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		76.5		43.9		---		---		---		---		---		---		---		---		---		---		18.1

Cooling Degree Days

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1723		---		3.2		99.9		195.8		262.7		260		237.7		249.7		211.7		148.1		54.2		---

Growing Degree Days

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4896.9		214.4		238.6		358.2		445.8		521		510		496		508.1		461.7		406.4		304.2		240.3

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		62.7		6.2		4.6		5.8		6.6		5.7		6.6		5.6		4.2		5		4.5		3.7		4.2

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.9		12.7		15.5		18.6		20.5		21.9		21.7		21.1		21.4		18.4		16.6		14.5		12.2

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.7		4.9		5.7		6.7		7.7		8.2		8.5		8.4		7.7		7.2		5.9		4.9		4.6

Average 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		14.8		17.6		19.6		19.9		20.2		21.5		19.3		20.2		18.6		18.3		17.4		14.5

Average 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		15.1		16.8		18.6		18.7		19.6		19.1		18.1		19.8		16.8		17.6		17.9		15.1

Maximum 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		12.7		15.5		18.6		20.5		21.9		21.7		21.1		21.4		18.4		16.6		14.5		12.2

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		7.2		5.2		6.1		7.2		8.2		8.7		9		8.9		8.3		7.5		6.4		5.3		4.9

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		21.4		19.1		21.5		22.1		22.7		22.2		23.3		22.4		21.9		20.8		21.6		20.3		18.3

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		22.9		22.4		23.5		23.1		23.9		23.8		22.3		24.8		23.1		20.6		23.2		22.6		21.6

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.7		8.2		13.6		15.7		17.5		19.6		17.4		17		18.3		13		14		12.6		9.3

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6		4.1		4.8		6		7		7.6		8.1		7.5		7.2		6.7		5.2		4.2		3.9

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.9		8.9		15.1		16.2		17		18.2		17		15.8		17.3		13		15.1		14.7		10.5

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.9		6.3		12.9		13.1		13.6		15.6		12.1		11.6		14.4		8.4		12.5		13.4		8.7