JEFFERSON, OHIO

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9.6		-2.9		-1.9		2.3		8.8		14.2		19.4		21		20.2		16.5		11		5.7		-0.4

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		14.7		0.8		2.4		7.4		14.7		20.4		25.8		26.7		25.9		22.4		16.3		9.8		2.8

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		4.4		-6.7		-6.4		-2.9		3		7.9		13.1		15.3		14.4		10.6		5.8		1.5		-3.7

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		4		---		---		---		---		0.2		1.3		1.6		0.7		0.3		---		---		---

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		53		---		---		---		1.2		3.7		13.3		15.2		12.6		5.7		1.1		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		130.5		---		0.2		0.8		6		13.5		25.6		29.6		29.2		18.9		6		0.7		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		187.6		0.4		0.9		4		13.3		25.4		30		31		31		27.9		16.6		6.1		0.9

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		237		3		3.3		10.3		22.6		30.4		30		31		31		30		27.1		14.5		3.7

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		284		8.3		9.3		19.2		27.9		31		30		31		31		30		31		24.1		11.1

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		362.4		31		28		31		30		31		29.4		29.6		30.4		30		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		322.4		31		28		31		29.7		29.3		20.6		16.1		19.2		26.1		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		249.4		30.9		27.9		30.6		27.4		20.5		7		2.4		3.5		13.9		26.1		28.7		30.5

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		179.4		30.2		27.3		28.6		19.6		7.1		0.8		---		---		1.2		13.3		22.3		29.1

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		119.3		25.8		24.3		22.3		7.5		0.8		---		---		---		0.3		2.6		12.2		23.5

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		44.8		15.6		13.1		6.7		0.3		---		---		---		---		---		---		0.8		8.4

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		14.1		5.9		4.9		1.5		---		---		---		---		---		---		---		---		1.7

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		2.8		1.7		0.8		0.3		---		---		---		---		---		---		---		---		0.1

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		911.9		30.5		35.6		53.3		86.4		73.7		99.1		101.6		94		114.3		83.8		83.8		63.5

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6281		1187		1023		897		518		259		61		18		29		142		414		684		1048

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		500		---		---		---		5		29		120		167		131		42		6		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2579		1		3		16		91		257		509		614		567		355		130		30		6

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		15.4		14.3		12.9		11.5		10.3		9.7

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.5		5		7.7		11.7		16.2		20.1		22.9		22.7		19.5		15.7		10.2		5.8		4.2

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.4		2.6		3.7		5.3		7		8.1		8.4		7.9		7		5.4		4.1		2.9		2.3

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.5		8.2		10.7		13.9		16.6		18.4		19.8		20.2		19.2		18		13.9		8.8		7

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.8		7.3		9.7		12.6		15.8		19		22.5		23.2		20.6		18.9		13.5		8.2		6.3

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.5		5		7.7		11.7		16.2		20.1		22.9		22.7		19.5		15.7		10.2		5.8		4.2

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.7		2.7		3.8		5.4		7.2		8.5		9		8.7		7.6		6		4.3		3		2.3

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.6		10.5		15.2		19.4		19.3		21.6		22.1		22.5		21.4		21.5		17.6		11.6		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		19.9		10.2		15.9		21.1		20.5		25.8		27.9		28.5		24.9		24.7		18.9		11.9		9

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11		4.3		5.4		9.7		13.7		17		19.8		18.1		16.6		12.6		7.8		3.6		3.6

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		2.5		3.5		4.6		6.6		7.3		7.6		7.2		6.4		4.7		3.7		2.5		2.2

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.4		6.5		6.8		10.9		13.8		15.6		17.3		16.2		16.1		13.9		9.7		4.5		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		9.8		5.4		4.6		8.5		11.2		13.6		16.8		14.8		14.9		12.3		8		3.1		4.7