CLARK, PENNSYLVANIA

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9.1		-4.3		-2.9		2.2		8.2		14.3		19.3		21.4		20.6		16.6		10.2		4.6		-1.2

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		15.5		0.9		2.8		8.4		15.1		21.4		26.2		28.5		27.8		23.9		17.2		9.9		3.6

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		2.6		-9.6		-8.7		-4.1		1.2		7.1		12.3		14.4		13.4		9.3		3.2		-0.9		-6.1

Highest Recorded Temperature

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		40		22		22		28		31		35		38		40		38		38		32		27		22

Lowest Recorded Temperature

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-32		-32		-29		-27		-13		-7		-2		2		---		-6		-8		-18		-27

Average Number of Days Above 90F/32C

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		17.4		---		---		---		---		0.6		3.6		6.7		4.6		1.8		---		---		---

Average Number of Days Below 32F/0C

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		145.8		27.8		25.3		23.3		13.2		3.1		0.2		---		---		0.9		7.7		18		26.3

Average Number of Days Below 0F/-17C

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8.6		3.6		3.1		0.5		---		---		---		---		---		---		---		---		1.3

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		998		53		46		71		87		96		110		105		96		107		74		84		71

Average Number of Days With Precipitation

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		148		14		12		14		14		12		11		11		10		10		12		14		14

Most Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		304		97		127		135		155		179		199		304		204		190		152		253		169

Least Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		6		21		6		28		34		18		27		36		26		28		24		29		31

Most Precipitation Reported in a Day

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		182.9		48.3		54.1		95		46.2		71.1		94.5		118.9		105.2		103.9		182.9		67.1		43.2

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

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		88		7		6		8		9		8		7		7		7		7		7		8		7

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

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		24		2		1		2		2		2		3		3		2		2		2		2		1

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

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6		---		---		---		---		1		1		1		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		153		14.9		13		14.5		14.1		12.3		11.5		10.8		9.7		10		12.1		14.7		15.1

Most Rain Reported in a Day

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		120		40		50		50		40		70		90		110		100		80		120		60		30

Most Rain Reported in a Month

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1260		220		120		150		170		210		190		330		200		270		270		250		160

Least Rain Reported in a Month

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		620		10		---		20		30		10		20		10		10		10		---		20		10

Average Snowfall

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		130.6		31		28.4		21.6		5.1		0.2		---		---		---		---		1		13.2		30

Most Snow Reported in a Month

Years on Record: 104

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		107.7		107.7		74.9		73.9		33.5		6.3		---		---		---		6.3		22.9		81		79

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3645.6		702.2		595.6		501.7		305.6		145		29.4		5		15.6		70.6		253.9		414.4		606.7

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		284.4		---		---		---		---		19.4		56.7		101.7		85.6		18.3		2.8		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1299.8		---		---		---		---		132.6		278.3		354.8		328.9		198.3		6.9		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.1		11.1		12.5		13.9		15.1		15.7		15.3		14.3		12.9		11.5		10.3		9.8

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.9		6		8.9		11.8		15.7		17.9		20.3		20.4		17.8		14.7		10.2		6.1		5

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.7		2.7		3.8		5.4		7.1		8.4		8.9		8.5		7.5		5.8		4.3		3		2.5

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.2		10.1		12.5		13.9		15.9		16.4		17.8		18.2		17.4		16.4		13.6		9.1		8.4

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.5		9.7		12		12.5		14.4		15		17.8		18.5		16.9		16.1		13		8.6		8

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.9		6		8.9		11.8		15.7		17.9		20.3		20.4		17.8		14.7		10.2		6.1		5

Maximum 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		2.8		3.9		5.5		7.2		8.5		9.1		8.8		7.7		6.1		4.4		3.1		2.5

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.3		13.3		15.8		18.5		18.1		19.7		20.3		20.3		19.8		19.3		17.1		13.6		11.3

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.5		13.8		16.6		19.5		18.1		21.4		23.2		23.1		21.4		20.8		18.1		14.7		11.4

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.6		4.5		7.6		9.9		13.2		13.4		17.2		17.1		15.7		11.7		8.4		4		4

Minimum 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		2.6		3.5		4.9		6.9		7.9		8.3		8		7		5.4		3.9		2.7		2.3

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.1		6.6		10		11.1		13.2		12.3		15.2		15.3		15.2		12.6		10.5		5		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		9		5.5		8.9		8.6		10.2		8.2		12.6		13		13		10.3		8.9		3.6		5.1