Swarthmore, PA Weather & Climate Normals
What a normal year in Swarthmore actually looks like
On the 30-year record NOAA keeps for Swarthmore, PA, the comfort score comes out to 42/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 4 months a year land in the 55–75°F range this site treats as mild.
How much Swarthmore's weather actually swings
Average temperatures in Swarthmore run from 34°F in Jan up to 79°F in Jul, a 45°F seasonal swing, a middling gap by national standards.
How wet Swarthmore actually gets
Over a typical year, Swarthmore sees about 44.11in of precipitation a year across roughly 121 days with measurable rain or snow, with 23.1in of snow a year.
Swarthmore against the rest of the country
Out of 4876 cities scored here, Swarthmore comes in at 4306; within PA alone it ranks 174 of 193. Population is about 6,596.
Checking the actual forecast
These figures come from PHILADELPHIA INTL AP, PA US, the NOAA station 6.7 miles from Swarthmore, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why this uses the nearest NOAA station · How the comfort score is calculated