PARKTON, MARYLAND

Average Temperature

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		11.2		-1.2		---		4.6		10.4		16.1		20.6		22.9		22.2		18.5		12.5		6.7		1

Average High Temperature

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		16.8		3.6		5.1		10.2		16.7		22.4		26.7		28.9		28		24.5		18.5		12		5.7

Average Low Temperature

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		5.6		-5.9		-5.1		-1		4.1		9.7		14.6		17		16.4		12.6		6.5		1.4		-3.7

Highest Recorded Temperature

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		39.4		23.9		25		30		33.3		33.3		36.7		39.4		37.8		36.7		34.4		29.4		24.4

Lowest Recorded Temperature

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-24.4		-24.4		-22.2		-15.6		-9.4		-3.9		0.6		7.2		3.3		-9.4		-6.7		-13.9		-20

Average Number of Days Above 90F/32C

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		13.2		---		---		---		0.1		0.4		2.5		5.4		3.5		1.3		0.1		---		---

Average Number of Days Below 32F/0C

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		118.8		26.8		23.8		19.8		6.5		0.4		---		---		---		0.1		3.5		13.7		24.1

Average Number of Days Below 0F/-17C

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.3		0.9		0.3		---		---		---		---		---		---		---		---		---		0.1

Average Precipitation

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1116		81		76		96		92		104		98		102		109		96		88		89		88

Average Number of Days With Precipitation

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		112		10		9		10		10		11		10		9		9		8		8		9		9

Most Precipitation Reported in a Day

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm.		223.8		57.9		52.1		74.2		75.7		85.8		223.8		124.5		126.5		147.8		99.1		97.5		81.3

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

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		76		6		6		7		7		7		7		6		6		5		5		6		6

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

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		29		2		2		3		2		3		3		3		3		2		2		2		2

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

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		11		1		1		1		1		1		1		1		1		1		1		1		1

Most Rain Reported in a Month

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1603		228		165		180		226		213		398		308		402		337		216		211		199

Least Rain Reported in a Month

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		801		10		16		25		10		3		21		7		20		10		3		14		4

Average Snowfall

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm.		76.7		20.8		21.8		16.5		1		---		---		---		---		---		0.5		4.1		11.9

Most Snow Reported in a Month

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm.		168.2		78		70.1		96.5		12.7		---		---		---		---		---		7.6		30.5		52.1

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3077.8		630.6		525.6		422.2		248.3		98.9		8.9		---		---		41.7		203.9		353.3		544.4

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		366.7		---		---		---		---		11.1		65.6		134.4		114.4		36.7		4.4		---		---

Growing Degree Days

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1630.4		---		---		---		11.7		187.7		318.3		401.3		378.9		255		77.5		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.3		11.2		12.5		13.8		14.9		15.5		15.2		14.1		12.9		11.6		10.5		9.9

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.3		6.8		9.8		12.8		15.6		18.5		19.8		20		17.6		14.8		11.2		7.2		5.7

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		2.8		3.8		5.5		7.2		8.3		8.9		8.6		7.6		5.9		4.3		3.1		2.6

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.7		11.2		13.6		15.1		15.8		17		17.4		17.9		17.1		16.4		14.9		10.9		9.7

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.2		11.1		13.7		14		14		15.8		16.7		17.7		16.1		15.9		14.8		10.8		9.6

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.3		6.8		9.8		12.8		15.6		18.5		19.8		20		17.6		14.8		11.2		7.2		5.7

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.9		2.9		4		5.6		7.3		8.6		9.1		8.8		7.7		6.2		4.5		3.2		2.6

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.8		13.8		17.5		18.3		18.5		20.3		20.2		19.6		19		20.2		19		14.5		12.1

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		14.3		19.1		19		18.6		22.4		22.7		21.3		19.7		22.2		20.9		15.8		12.6

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		5.9		8.6		11.4		13.1		13.2		16		16.7		15.8		12.3		9.4		5.2		4.7

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		2.7		3.4		5.1		6.9		7.8		8.4		8.2		7.2		5.2		3.7		2.9		2.5

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.8		9.1		11.2		13.1		13		12.1		14.2		14.9		15.3		13.2		12		6.9		7.2

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		8.6		10.5		11.1		9.8		7.8		10.7		12.2		13.1		11		10.6		5.7		6.5