ALTOONA, PENNSYLVANIA

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		47.1		23.3		25.7		35.2		45.5		56.7		64.8		68.9		67.6		60.3		49.2		38.7		28.9

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		56.7		31.5		34.9		45.2		56.7		67.5		75.1		78.7		77.3		69.9		59.3		47.2		36.6

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		37.4		15		16.5		25.2		34.3		45.8		54.5		59		57.8		50.6		39.1		30.1		21.2

Highest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		86		41.1		45.4		52.9		62.8		75.8		80.2		86		82.9		73.7		65.9		53.6		45.7

Lowest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		0.1		0.1		3.2		18.7		25.9		39.8		49.1		55.1		52.9		45.4		34.1		20.5		9.1

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		7.4		---		---		---		---		0.3		1.6		2.9		1.8		0.9		---		---		---

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		126.1		27.2		24.5		20.9		8		0.6		---		---		---		0.2		4.3		14.8		25.5

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		2.1		1.1		0.7		---		---		---		---		---		---		---		---		---		0.4

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		49.7		3.7		3.2		4.2		4		4.3		5.2		5.1		4.3		4.3		3.2		4.1		3.8

Average Number of Days With Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		136		13		12		13		12		13		11		11		10		9		9		11		12

Most Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		15.3		6.6		5.8		7.9		6.9		7.7		13.1		15.3		7.9		11.2		6.3		10		8.7

Least Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		0.7		1.4		0.7		2		1.4		1.8		1		1.8		1.8		0.7		1.1		1.3		2.1

Most Precipitation Reported in a Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		4.5		1.5		1.9		2.2		2		2.8		4.4		2.3		2.4		4.5		2.9		3.6		1.5

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		77		6		6		7		8		8		7		7		6		6		4		6		6

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

Years on Record: 30

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

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7		---		---		1		---		---		1		1		1		1		1		1		---

Average Number of Rainy Days

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		67.3		5.3		4.6		6.2		6.5		6.7		6.2		7.2		5.9		4.3		4.6		4.5		5.3

Average Snowfall

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		37.2		7.3		10		9.3		0.6		---		---		---		---		---		0.1		2.7		7.2

Most Snow Reported in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		36.7		24.2		33.8		36.7		4		0.4		---		---		---		---		1.1		11.8		22.6

Average Relative Humidity

Years on Record: 6

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		74		77		73		72		68		72		72		74		76		76		73		75		77

Average Dew Point

Years on Record: 6

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		41		25		24		27		36		48		57		61		60		53		44		31		24

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6909		1293		1101		924		585		289		85		27		42		162		491		791		1119

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		400		---		---		---		---		30		80		147		122		20		1		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2092.2		---		---		---		---		207.7		444		585.9		545.6		309		---		---		---

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
kWh/m2		3.7		1.8		2.7		3.5		4.4		5		5.5		5.5		4.8		4.1		3.1		1.9		1.6

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		0.8		1.1		1.5		2		2.3		2.5		2.4		2.1		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		3		3.7		4.1		4.4		4.6		4.8		4.9		4.7		4.5		4.1		2.9		2.6

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.8		3		3.6		3.7		3.9		4.2		4.6		4.8		4.4		4.4		4.1		2.9		2.6

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.7		1.8		2.7		3.5		4.4		5		5.5		5.5		4.8		4.1		3.1		1.9		1.6

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		0.8		1.1		1.6		2		2.4		2.5		2.4		2.1		1.7		1.3		0.9		0.7

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.9		3.5		4.8		5		5.2		5.4		5.6		5.5		5.3		5.4		5.1		4.1		3.4

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.2		3.5		5.2		5.2		5.3		5.8		6.4		6		5.5		5.9		5.5		4.5		3.5

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		1.6		2.3		3		3.8		3.6		4.4		4.6		4.4		3.3		2.6		1.3		1.3

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.5		0.8		1		1.4		1.9		2.2		2.3		2.3		2		1.5		1.1		0.8		0.7

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.2		2.4		3		3.3		3.8		3.3		3.9		4.1		4.2		3.6		3.3		1.7		2

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.6		2.2		2.8		2.7		2.9		2.1		2.9		3.3		3.6		2.9		3		1.3		1.8