HEREFORD, TEXAS

Average Temperature

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		13		3		4		8		13		18		23		24		24		20		14		7		3

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		21.9		9		11.6		17.9		21.8		26.1		32.2		33.7		31.4		28.7		22.9		14.2		12.3

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		4.5		-7.4		-5.4		-1.3		3.6		8.6		14.1		16.8		15.6		11.8		4.8		-2.3		-5.5

Highest Recorded Temperature

Years on Record: 24

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		43		27		27		36		35		37		43		41		40		38		33		29		26

Lowest Recorded Temperature

Years on Record: 23

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-27		-24		-27		-17		-10		-8		4		11		1		---		-5		---		-24

Average Number of Days Above 90F/32C

Years on Record: 9

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		72		---		---		---		---		5		17		21		19		9		1		---		---

Average Number of Days Below 32F/0C

Years on Record: 9

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		123		27		22		19		5		1		---		---		---		---		3		19		27

Average Number of Days Below 0F/-17C

Years on Record: 12

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Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		393		10		13		12		24		64		50		60		76		44		22		14		4

Average Number of Days With Precipitation

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		33		2		2		2		3		3		4		4		5		4		2		1		1

Most Reported Precipitation in a Month

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		170		19		34		36		33		84		109		170		138		83		38		69		13

Least Reported Precipitation in a Month

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		1		---		---		2		24		5		6		11		10		---		---		---

Most Precipitation Reported in a Day

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		81.3		12.7		12.9		19.1		8.1		55.9		38.1		81.3		56.1		45.7		20.8		66		7.6

Avg. No. of Days w/Precip. Above 0.2in/5mm

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		32		2		2		2		3		3		4		4		4		4		2		1		1

Avg. # of Days w/Precip. Above 0.4in/10mm

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10		---		---		1		---		2		1		2		2		1		1		---		---

Avg. No. of Days w/Precip. Above 1in/25mm

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3		---		---		---		---		1		1		1		---		---		---		---		---

Average Number of Rainy Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		40		1		2		1		3		5		4		5		4		3		3		1		2

Average Snowfall

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		27		3		10		2		1		---		---		---		---		---		1		4		5

Most Snow Reported in a Month

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		11.4		1.3		---		---		---		---		---		---		---		---		---		---		11.4

Average Relative Humidity

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		54		56		57		49		49		56		54		56		55		54		55		54		55

Average Dew Point

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		2		-7		-5		-5		---		7		12		14		13		9		3		-3		-6

Heating Degree Days

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1331.1		337.2		250		154.4		63.9		4.4		0.6		---		---		0.6		43.3		223.3		253.3

Cooling Degree Days

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		651.7		---		---		---		1.1		20.6		156.1		216.1		164.4		87.8		5.6		---		---

Growing Degree Days

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2142.3		---		---		---		100		258.3		416.7		465		447.8		316.7		137.8		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.6		10.6		11.4		12.4		13.5		14.5		15		14.7		13.8		12.8		11.7		10.8		10.3

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.9		10.2		12.9		17.4		21.9		23.9		25.7		25.9		22.2		18.9		15.2		11.2		9.1

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.3		3		4		5.2		6.3		7.5		7.6		7.2		6.8		5.6		4.1		3.2		2.8

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.7		15.8		17.1		20.3		22.1		21.7		22.3		22.9		21.5		20.8		20.1		16.7		14.8

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		22.2		17.8		18.6		21.6		24.6		24.7		26.9		28		23.8		22.6		22		19		16.6

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		10.2		12.9		17.4		21.9		23.9		25.7		25.9		22.2		18.9		15.2		11.2		9.1

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		3.5		4.6		6		7.4		8.3		8.7		7.7		7.4		6.1		5		3.8		3.2

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		22.8		20.4		21.9		25		25		24.3		24.6		24.5		23.2		22.9		23.8		20.9		17.4

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		28		25.1		26.9		29.8		30.5		30.7		32.8		32.1		27.4		26.4		28.1		25.7		20.5

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.3		8		10		14.5		17.8		21.2		22.1		24.4		20.5		17.5		11.7		8.3		7.2

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.4		2.2		2.9		3.9		5.3		6.4		6.5		6.4		6.2		5		3.2		2.3		2.4

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.1		11.3		12.3		16.3		17.8		19.4		19.4		21.7		19.8		19		14.3		11.2		10.7

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		11.1		11.1		15.1		16.4		19.4		19.9		25.1		20.3		19.2		13.1		10.6		10.6