DOYLESTOWN, PENNSYLVANIA

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		8.5		-4.7		-3.1		1.8		7.9		13.9		18.3		20.6		19.8		15.7		9.6		3.8		-1.9

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		13.3		-0.9		1.2		6.7		13.4		19.6		23.9		26		25.1		20.9		14.6		7.7		1.7

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		3.6		-8.5		-7.4		-3.1		2.3		8.2		12.7		15.2		14.4		10.5		4.6		-0.1		-5.6

Highest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		29.7		4		6.1		10.7		16.9		24.2		26.4		29.7		27.6		23.1		18.5		11.8		6.6

Lowest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-15.9		-15.9		-12.7		-6.4		-0.7		4.7		10.4		13.2		12.5		8.7		2.2		-4.3		-12.4

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1216.7		83.8		71.1		101.6		99.1		106.7		111.8		134.6		106.7		111.8		104.1		91.4		94

Average Number of Days With Precipitation

Years on Record: 90

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		104		9		8		9		10		10		9		9		9		7		7		8		9

Most Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		373		165		139		170		132		231		373		262		256		211		168		221		178

Least Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		17		27		25		43		30		36		22		55		17		18		18		18		51

Most Precipitation Reported in a Day

Years on Record: 90

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		155.7		69.3		83.1		52.1		62.2		84.8		155.7		111.2		136.1		129		127		101.1		65.5

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

Years on Record: 90

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

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

Years on Record: 90

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		31		2		2		3		3		3		3		3		3		2		2		2		3

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

Years on Record: 90

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

Average Snowfall

Years on Record: 90

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		62		16.5		19.6		10.2		2		---		---		---		---		---		0.2		2		11.4

Most Snow Reported in a Month

Years on Record: 90

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		92.7		61.5		92.7		51.3		22.9		---		---		---		---		---		7.1		43.2		92.7

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3796.7		714.4		601.1		512.2		313.9		157.2		39.4		11.1		20.6		90		273.3		435		628.3

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		213.3		---		---		---		---		18.3		38.9		80.6		64.4		10		1.1		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1174.3		---		---		---		---		120.6		250		328.9		303.1		171.7		---		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.2		11.2		12.5		13.8		15		15.6		15.2		14.2		12.9		11.6		10.4		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		13.7		7		10		13.4		16.5		18.9		20.4		20		18		15.2		11.4		7.5		6

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		5.4		7.1		8.3		8.9		8.5		7.5		5.8		4.3		3.1		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		15.3		11.5		13.9		15.9		16.7		17.3		17.9		17.9		17.5		16.9		15.3		11.7		10.4

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.1		11.7		14.3		15.3		15.6		16.5		17.8		17.8		16.9		16.8		15.3		11.9		10.7

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.7		7		10		13.4		16.5		18.9		20.4		20		18		15.2		11.4		7.5		6

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		18.1		14.1		17		18.7		19		20.9		20.4		20.2		20.1		20.2		19.2		14.8		13.3

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.8		14.9		18.8		19.6		19.6		23.7		23.2		22.5		21.7		22.2		21.1		16.2		14.3

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		6		8.6		12		14.3		13.1		16.1		17.4		16.2		12.5		10.1		6		4.8

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		3.5		5		6.8		7.6		8.3		8.1		7		5.3		3.7		2.8		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		12.4		9.2		11.2		13.8		14.3		12		14.2		15.6		15.7		13.4		13.1		8.6		7.5

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.6		8.7		10.5		12.2		11.6		7.7		10.9		13.3		13.8		11.3		12.2		7.7		6.8