GUYMON, OKLAHOMA

Average Temperature

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		56.5		34.2		37.9		43.9		55.1		64.9		74.4		79.2		78.2		70		58.8		44.7		36.5

Average High Temperature

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		70.8		48.5		51.9		59		69.7		78.9		88.5		93.1		92.1		84.3		74.1		59.3		50.5

Average Low Temperature

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		42.2		19.9		23.9		28.8		40.4		50.7		60.4		65.4		64.3		55.7		43.6		30.1		22.7

Highest Recorded Temperature

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		109		83		88		93		96		102		109		108		108		106		98		87		86

Lowest Recorded Temperature

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-19		-19		-11		-7		17		28		41		48		46		31		23		4		-8

Average Number of Days Above 100F/38C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		11.7		---		---		---		---		0.3		1.6		4.7		4.1		1.2		---		---		---

Average Number of Days Above 90F/32C

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		78.1		---		---		0.1		1.4		5.8		15		22.6		20.5		10.5		2.1		---		---

Average Number of Days Above 80F/26C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		138.2		0.1		0.6		2.2		7.3		14.7		24.6		30.1		28		21.1		8.3		1.2		0.1

Average Number of Days Above 70F/21C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		198.4		2.1		2.6		8.2		15.9		24.9		29.3		30.8		30.7		27.7		18.1		7.2		0.8

Average Number of Days Above 60F/15C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		259.2		7.7		9.3		18		24.7		29.7		29.8		31		31		29.6		26.3		15.4		6.7

Average Number of Days Above 50F/10C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		305.9		15		16.6		24.7		28.2		31		30		31		31		30		29.7		24.1		14.6

Average Number of Days Above 40F/4C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		339.6		23.5		23.1		29		29.6		31		30		31		31		30		30.6		27.8		23.1

Average Number of Days Below 70F/21C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		358.7		31		28		31		30		30.9		29.3		28.1		28.5		29.9		31		30		31

Average Number of Days Below 60F/15C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		279.3		31		28		31		30		28.7		12.9		2.7		3.7		19.8		30.4		30		31

Average Number of Days Below 50F/10C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		224.9		31		28		30.5		27		14.2		1.2		---		---		7		25.5		29.6		31

Average Number of Days Below 40F/4C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		170.5		30.7		27.2		26.8		14.1		2.1		---		---		---		0.7		12.5		25.9		30.6

Average Number of Days Below 32F/0C

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		127		28.7		23.3		20.2		5.4		0.2		---		---		---		---		2.9		18.4		27.8

Average Number of Days Below 20F/-6C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		38.9		12.5		9.2		2.6		---		---		---		---		---		---		---		3		11.7

Average Number of Days Below 10F/-12C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7.2		2.8		1.8		0.3		---		---		---		---		---		---		---		0.1		2.3

Average Number of Days Below 0F/-17C

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.8		1.3		0.2		0.2		---		---		---		---		---		---		---		---		0.2

Average Precipitation

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		19.4		0.4		0.7		0.8		1.4		2.8		2.8		3.3		2.7		1.7		1.6		0.7		0.6

Average Number of Days With Precipitation

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		59		3		3		4		5		8		7		7		7		5		4		3		3

Most Reported Precipitation in a Month

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		10.7		2.1		5.2		4.5		7.8		7		8.4		10.7		6.8		5.6		5.7		4.1		3

Least Reported Precipitation in a Month

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		---		---		---		---		---		0.4		---		0.1		0.3		---		---		---		---

Most Precipitation Reported in a Day

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		3.8		1.2		3.5		1.6		2.5		2.6		3		3.6		3.8		2.4		2.9		3.1		1.6

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

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		36		1		2		2		3		5		5		5		4		3		3		2		1

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

Years on Record: 101

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

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

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5		---		---		---		---		1		1		1		1		---		1		---		---

Average Number of Rainy Days

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		44.4		1.6		2.6		2.2		4.3		6.2		4.9		6.2		5.4		3.6		3.4		2		2

Average Snowfall

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		13.1		2.8		2.8		2		0.2		---		---		---		---		---		0.1		1.4		3.8

Most Snow Reported in a Month

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		20		11.5		12.2		13		3.3		---		---		---		---		---		2		7.3		20

Average Relative Humidity

Years on Record: 3

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		63		75		71		62		67		59		58		58		54		55		61		58		73

Average Dew Point

Years on Record: 3

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		40		23		27		30		37		47		56		61		60		50		42		28		22

Heating Degree Days

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2587		645		487		363		113		15		---		---		---		6		59		325		574

Cooling Degree Days

Years on Record: 101

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1492		---		---		1		17		101		293		441		411		193		35		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4208		6		14		70		203		463		721		919		871		614		263		58		5

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.5		11.3		12.4		13.6		14.6		15.1		14.9		14		12.8		11.7		10.7		10.2

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.8		2.5		3.3		4.6		5.7		6.6		7		7		6.1		5.2		4		2.9		2.3

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.5		0.8		1.1		1.4		1.8		2.1		2.2		2.1		1.9		1.5		1.1		0.8		0.7

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.3		4.1		4.4		5.4		5.9		6		6.1		6.2		5.9		5.8		5.4		4.4		3.9

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.9		4.5		4.8		5.7		6.3		6.9		7.2		7.4		6.6		6.4		5.9		5		4.3

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.8		2.5		3.3		4.6		5.7		6.6		7		7		6.1		5.2		4		2.9		2.3

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		0.9		1.2		1.6		2		2.3		2.4		2.3		2.1		1.7		1.3		1		0.8

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.2		5.5		5.8		6.5		6.6		6.7		6.8		6.7		6.4		6.5		6.2		5.7		4.6

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		7.5		6.7		7		7.6		7.8		8.5		9		8.6		7.6		7.5		7.2		6.9		5.3

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.1		2.1		2.3		3.8		4.9		5.6		6.3		6.3		5.4		4.7		3.2		2.2		1.8

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.2		0.6		0.8		1.2		1.6		1.8		1.9		1.8		1.7		1.3		0.9		0.6		0.6

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.3		3.2		2.8		4.4		5		5.1		5.5		5.6		5.2		5.1		4.1		3.2		2.9

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.3		3.1		2.4		4		4.7		5		5.9		6.1		5.2		5.2		3.9		3.1		2.8