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
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.
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
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.