climate data for any destination this site in Dutch our cookie policy contact


more about Pennsylvania

Pennsylvania official site
Pennsylvania tourism
wikipedia

this page in Dutch

... more interesting sites

The climate of Pennsylvania (United States of America)
The state of Pennsylvania is located in the northeastern part of the United States. In the northwest Pennsylvania borders Lake Erie which forms the natural border with Canada. In the east the Delaware River forms the natural border with the states of New York and New Jersey. The landscape of Pennsylvania is mainly dominated by the Appalachians which is a large mountainous region in the eastern part of the United States. Because of the presence of the Appalachians the landscape in central Pennsylvania mainly consists of hills and low mountains. The highest point in Pennsylvania is located at an altitude of 979 meters above sea level.

Pennsylvania has a mix of a warm continental climate (type Dfa according to the Köppen climate classification) and the slightly cooler moderate continental climate (type Dfb) in both the northern part of the state and in the Appalachians. Pennsylvania has typical continental climate types instead of maritime climate types because although the Atlantic Ocean is relatively nearby it hardly has any influence on the climate and weather in Pennsylvania. The weather in Pennsylvania is mainly determined by currents from the north and the west. Fairly large differences in temperatures in the state of Pennsylvania are not uncommon. In general, the northwestern part of the state is slightly cooler than the eastern part of the state. The difference in long term average temperatures is about 5 degrees Celsius. Precipitation figures are about the same in the entire state. Precipitation is also quite evenly spread out over the year, there are no distinct dry or wet periods.

Climate information of places in Pennsylvania
The climate information given on this page is only brief. Specific information on weather and climate can be found on the pages per region or city. The following climate information is available for Pennsylvania:

Allentown
Altoona
Erie
Harrisburg

Lancaster
Philadelphia
Pittsburgh

State College
Wilkes-Barre
Williamsport

 

 

Climate information
Throughout Pennsylvania several climate figures and temperatures can be recorded. The figures below are for Harrisburg and cannot be seen as an average for this state. For climate figures for other places and regions in Pennsylvania please, visit the individual climate pages.

average
 maximum
temperature (°C)

average
minimum

temperature (°C)
average
hours of sunshine

per
day
average days with precipitation
per month
average
mm
precipitation
per month
average
sea
temperature (°C)
January 2 -7 5 12 n/a
February 4 -5 6 11 n/a
March 10 -1 7 12 n/a
April 17 4 8 13 n/a
May 22 10 9 12 n/a
June 27 15 10 11 n/a
July 30 18 10 11 n/a
August 29 17 9 10 n/a
September 24 12 7 9 n/a
October 18 6 6 9 n/a
November 11 2 5 11 n/a
December 5 -4 4 12 n/a
= 0-5 mm ● = 6-30 mm ● = 31-60 mm ● = 61-100 mm ● = 101-200 mm ● = over 200 mm
= 0-0.2 inches ● = 0.2-1.2 inches ● = 1.2-2.4 inches ● = 2.5-4 inches ● = 4.1-8 inches ● = over 8 inches

More climate information
Climate tables are useful but they don’t give an overall picture of the climate and possible weather conditions during a period of time. How high the chances are of hot or cold weather or hurricanes can often not be found in these tables. This is why we offer extra climate information per month. The figures below apply to Harrisburg. For climate figures on specific regions and places please, visit the relevant individual climate pages
 

chance of
(very) hot

weather

chance of
(very) cool
weather
chance of
long-term

precipitation
chance of
hurricanes
(cyclones)
chance of
sunny days

UV-index

January
February
March
April
May
June
July
August
September
October
November
December
click here for the explanation of the symbols

Disclaimer
The information at this site was carefully composed from climate data collected by meteorological services, meteorological offices, climate experts and other sources. “More climate info” is based on statistics, climate data and personal experience. No rights can be derived from this site. Weather has no memory and gives no guaranties. Nothing is as changeable and unpredictable as the weather. The authors of this site feel in no way responsible for any damages caused by misinterpretation or other circumstances that may influence your holiday or trip to a certain destination. We provide information, it’s up to the reader to use it to it’s benefit.

 

this site in Dutch: klimaatinfo.nl climate data & informationcopyright links contact