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Climate in Pennsylvania
(United States)

Average daytime and nighttime temperatures


All climatic diagrams on this site result from the collected data from 11 measuring stations in Pennsylvania.
All data correspond to the average monthly values of the last 20 years.


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Pennsylvania is one of the coldest regions in the United States with an average daily high temperature of only 17 degrees centigrade. The climate is very changeable and offers varied seasons with deep winters and warm summers.

Overview: Climate in the United States
Duration of daylight and sunshine in the United States


hours of sunshine per daySunshine hours per day in Pennsylvania
rainy days per monthRainy days per month in Pennsylvania
Precipitation in mm/dayPrecipitation in Pennsylvania
Relative humidity in %Relative humidity in Pennsylvania
Absolute humidity in g/m³ (approx.)Absolute humidity in Pennsylvania
Map of Pennsylvania

Most important cities in the state »Pennsylvania«

The state has a west-east extension of about 480 km and over 270 km from north to south.

CityPopulationGeo-Position
Philadelphia1,576,59639°57'8"N75°9'50"W
Pittsburgh301,04840°26'26"N79°59'45"W
Allentown120,44340°36'30"N75°29'25"W
Erie101,04742°7'45"N80°5'6"W
Reading88,08240°20'8"N75°55'37"W
Scranton76,08941°24'33"N75°39'54"W
Bethlehem74,98240°37'33"N75°22'14"W
Lancaster59,32240°2'16"N76°18'20"W
Levittown52,98340°9'18"N74°49'44"W
Harrisburg49,52840°16'25"N76°53'4"W
Altoona46,32040°31'7"N78°23'41"W
York43,71839°57'45"N76°43'40"W
State College42,03440°47'36"N77°51'36"W
Wilkes-Barre41,49841°14'45"N75°52'53"W
Norristown34,32440°7'17"N75°20'24"W
Chester33,97239°50'59"N75°21'25"W
Mount Lebanon32,73040°21'19"N80°2'58"W
Bethel Park32,31340°19'39"N80°2'22"W
Wayne30,89240°2'38"N75°23'16"W
Radnor30,87840°2'46"N75°21'36"W
Williamsport29,38141°14'28"N77°0'4"W
Monroeville28,38640°25'16"N79°47'17"W
Cranberry Township28,09840°41'6"N80°6'26"W
Drexel Hill28,04339°56'49"N75°17'32"W
Plum27,12640°30'1"N79°44'58"W
Back Mountain26,97341°20'9"N75°59'47"W
Easton26,80040°41'18"N75°13'15"W
Lebanon25,47740°20'27"N76°24'41"W
Hazleton25,34040°57'30"N75°58'29"W
Whitehall Township24,89640°40'0"N75°29'60"W


Data basis: German Weather Service, individual values averaged and supplemented by own elements. Data on cities and inhabitants: geonames.org, United Nations Statistics Division and own research.
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