DERBY, KANSAS

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		56.6		32.1		36.9		45.9		55.9		65.7		75.4		79.8		78.8		70.5		58		45.3		33.3

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		68.1		43.1		48.2		57.5		67.6		76.5		86.5		91.3		90.9		82.9		71.2		57		43.9

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		45		21.1		25.5		34.2		44.3		55		64.3		68.2		66.7		58.1		44.9		33.7		22.6

Highest Recorded Temperature

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		114		74		84		91		97		100		108		114		110		107		96		82		81

Lowest Recorded Temperature

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-16		-11		-9		---		17		32		46		52		51		35		21		6		-16

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		7.9		---		---		---		---		---		0.3		3		4.1		0.6		---		---		---

Average Number of Days Above 90F/32C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		52.2		---		---		---		0.1		1.4		8.8		18		17.1		6.2		0.7		---		---

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		122.7		---		---		0.2		3		10.2		25.3		29.4		28.5		20.1		5.9		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		185.3		0.1		1.3		4.9		13.2		24.3		29.6		31		30.9		28		17.5		4.4		0.1

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		239.7		3		5.8		14		22.6		30.5		30		31		31		29.7		26.7		12.6		2.7

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		287.9		9.5		12.5		22.9		28		31		30		31		31		30		30.2		21.9		10

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		328.3		18.4		20.2		28.8		29.8		31		30		31		31		30		31		27.7		19.4

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		337.7		31		28		31		30		30.4		25.5		19.5		21.9		28.7		30.6		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		257.7		31		28		30.9		28.3		22		6.6		1.8		3.4		15.9		28.9		30		30.9

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		204.4		31		27.6		28.7		21		8.5		0.4		---		0.2		5.6		22.2		28.4		30.9

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		154.8		30.7		26.3		23.7		10.4		1		---		---		---		0.8		9.7		22		30.2

Average Number of Days Below 32F/0C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		107.5		26.9		21.5		12.7		3.4		0.2		---		---		---		0.1		2.6		13.8		26.2

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		37.4		13.8		7.4		2.4		---		---		---		---		---		---		0.1		1.8		11.8

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		8.9		3.9		1.6		0.4		---		---		---		---		---		---		---		0.1		2.9

Average Number of Days Below 0F/-17C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.6		0.4		0.1		---		---		---		---		---		---		---		---		---		0.2

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		36		0.9		1.3		2.9		3.1		5.2		5.8		3.7		3.6		3		3		2		1.3

Average Precipitable Water

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		0.8		0.4		0.4		0.5		0.6		0.9		1.2		1.4		1.4		1.1		0.7		0.5		0.4

Average Number of Rainy Days

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		85		5		5		7		8		10		9		7		8		8		7		5		6

Average Number of Days With Thunderstorms

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		55		1		1		3		5		9		9		8		7		6		4		1		1

Most Rain Reported in a Day

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		6.9		1.5		1.6		2.8		3.3		3.1		5.1		4.3		6.9		3.9		4.4		2.8		2.3

Most Rain Reported in a Month

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		46.7		3.1		2.9		10.6		7.2		9		10.1		9.1		11.8		10.2		9.7		7.8		3.5

Least Rain Reported in a Month

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		10.8		---		---		---		0.2		0.5		0.6		---		0.4		0.2		---		---		---

Average Snowfall

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		15.9		4.4		4.3		2.4		0.2		---		---		---		---		---		---		1.2		3

Average Number of Days With Snow

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10		3		2		1		1		---		---		---		---		---		---		1		2

Deepest Snow Cover Reported

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		14		11		14		10		2		---		---		---		---		---		1		7		10

Most Snow Reported in a Day

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		59.9		9.2		15		4.3		---		---		---		---		---		0.8		5.3		10.3		15

Most Snow Reported in a Month

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		45.7		17.5		18.6		18.3		4.3		---		---		---		---		---		0.8		7.5		13.6

Average Relative Humidity

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		66		69.3		66.2		62.6		63.3		69.6		68		64.3		63.4		63.6		64.2		66.7		70.1

Average Morning Relative Humidity

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		75.3		75.2		76.5		74.5		73.3		77.6		76.7		73.2		75		76.5		75.6		74.4		75.8

Average Evening Relative Humidity

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		53		57		57.5		52.2		51.2		57.7		51.9		45.7		47.9		49.6		53		53.8		59.4

Average Dew Point

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		43		21		25		33		41		54		62		64		63		56		45		33		22

Average Wet Bulb

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		50		28		32		41		49		59		66		70		69		62		51		40		28

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4650		1020		788		595		294		81		4		---		1		42		249		591		984

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1573		---		---		2		23		104		316		457		428		207		34		1		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4336		2		13		68		227		489		762		922		893		616		280		63		2

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.6		10.4		11.3		12.4		13.7		14.7		15.2		14.9		14		12.8		11.6		10.6		10.1

Average Number of Days With Fog

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		102		11		11		10		8		9		6		5		6		8		8		9		11

Average Possibility of Clouds

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		49		44.1		55.7		57.4		54		55.3		51.5		37.7		41.4		43.8		48.2		47.3		51.8

Average Total Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		53		56.3		58.3		57.8		56.6		61		54		47.8		47.1		45.3		45.7		51.7		54

Average Opaque Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		45.4		49.7		48.7		51		49.1		52.3		45.5		39.3		39		38		38.4		46.3		47.6

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.3		2.3		3		4.1		5		5.8		6.3		6.6		5.7		4.8		3.5		2.5		2

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		1.5		2		2.3		2.4		2.2		2		1.6		1.2		0.9		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		4.8		3.7		4		4.8		5.1		5.3		5.5		5.9		5.6		5.4		4.7		3.8		3.5

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		3.9		4.2		4.8		5		5.4		5.9		6.8		6		5.7		4.9		4.1		3.7

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.3		2.3		3		4.1		5		5.8		6.3		6.6		5.7		4.8		3.5		2.5		2

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.7		0.9		1.2		1.6		2.1		2.4		2.5		2.4		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		5.8		5.2		5.3		5.9		6.3		6		6.3		6.5		6.1		6		6		5.4		4.5

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.8		6.2		6.2		6.6		7.3		6.9		7.8		8.4		7.1		6.8		6.9		6.4		5.2

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.5		1.9		2.5		3.1		4		4		5.2		5.8		5.2		4		2.9		1.6		1.6

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.3		0.6		0.9		1.3		1.6		2.1		2.1		1.9		1.8		1.4		1		0.7		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		3.7		3		3.2		3.5		4		3.7		4.6		5.1		5		4.3		3.6		2.1		2.5

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.3		2.9		3		2.8		3.1		2.6		4		5.1		4.9		4		3.3		1.7		2.4