SEMINOLE CANYON STATE PARK, TEXAS

Average Temperature

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		20.4		9.7		12.7		20.8		19.8		23.8		26.4		28.1		29.7		25		21.2		18.1		9.7

Average High Temperature

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		26.9		16.6		20.6		28.8		26.4		29.8		32.3		34.3		35.9		30.6		27.8		23.6		15.8

Average Low Temperature

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		13.9		2.8		4.8		12.7		13.2		17.7		20.5		21.8		23.4		19.4		14.6		12.6		3.6

Highest Recorded Temperature

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		40.6		27.2		36.1		37.8		38.9		36.7		38.3		37.8		40.6		36.1		35.6		28.9		24.4

Lowest Recorded Temperature

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-9.4		-9.4		-8.9		1.1		3.3		11.7		15.6		14.4		20		9.4		4.4		1.1		-6.1

Average Number of Days Above 90F/32C

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		107		---		1.5		12		3		6		14		28		31		11		0.5		---		---

Average Number of Days Below 32F/0C

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		24.5		9.5		7.5		---		---		---		---		---		---		---		---		---		7.5

Average Precipitation

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		441		31		24		13		14		59		67		43		22		50		50		24		45

Average Number of Days With Precipitation

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		43		3		3		3		4		5		4		2		2		5		4		4		4

Most Reported Precipitation in a Month

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		265		70		74		26		203		265		229		164		59		244		162		69		88

Least Reported Precipitation in a Month

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		---		---		---		---		---		---		---		---		11		2		---		---

Most Precipitation Reported in a Day

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		146.1		25.6		50.8		15.8		83.8		146.1		127		139.7		43.2		104.1		78.7		38.4		27.9

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

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		28		1		2		1		3		3		3		2		2		4		3		2		2

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

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		12		1		1		---		1		2		2		1		---		2		1		---		1

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

Years on Record: 85

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

Average Snowfall

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		1.8		1.5		---		---		---		---		---		---		---		---		---		---		0.2

Most Snow Reported in a Month

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		22.9		22.9		---		---		---		---		---		---		---		---		---		---		2.5

Heating Degree Days

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		312.8		115.6		67.2		5.6		0.6		---		---		---		---		---		0.6		10.6		112.8

Cooling Degree Days

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1615		---		16.1		113.9		68.9		168.3		242.8		302.2		351.7		200		107.2		43.9		---

Growing Degree Days

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3835.3		---		76.9		334.1		293.3		427.1		493.3		559.7		609.7		450		347.9		243.3		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.6		10.9		11.6		12.4		13.3		14.1		14.5		14.3		13.6		12.7		11.8		11.1		10.7

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18		11.4		14		18.5		21.9		22.7		24.3		24.6		21.8		19		15.2		12.4		10.6

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		3.7		4.6		5.6		6.8		8		8.1		7.6		7.3		6.2		4.9		3.8		3.4

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.1		15.4		17.6		20.6		21.6		20.8		21.4		21.9		20.8		20.1		18.3		16.3		15

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.4		16.9		17.9		21.5		23		21.7		23.8		24.8		21.6		20.4		18.7		18		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		18		11.4		14		18.5		21.9		22.7		24.3		24.6		21.8		19		15.2		12.4		10.6

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.5		4.1		5.2		6.5		7.8		8.7		9		8.7		8		7		5.7		4.4		3.8

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		22.7		19.8		22.2		24.6		26.6		23.3		24.3		23.8		23		22.6		22.6		20.4		18.9

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		24.2		25.4		28.5		33.4		27.3		31.1		29.3		26.1		24.9		25.7		24.9		23

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.8		9.4		11.5		14.5		18		19.3		20.4		20.7		19		15.6		10.3		10		8.1

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		3.7		4.5		4.8		7.1		6.7		6.8		6.6		5.5		4		3		2.7

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.2		12.1		13.8		15.6		17.6		17.8		18.2		18.7		18.2		16.1		11.4		12.5		10.6

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.6		11.6		12.1		13.2		15.6		15.6		16.7		17.6		16.6		13.8		8.5		12		9.9