Darby, PA Weather & Climate Normals
What a normal year in Darby actually looks like
On the 30-year record NOAA keeps for Darby, 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 Darby's weather actually swings
Average temperatures in Darby 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 Darby actually gets
Over a typical year, Darby sees about 44.11in of precipitation a year across roughly 121 days with measurable rain or snow, with 23.1in of snow a year.
Darby against the rest of the country
Out of 4876 cities scored here, Darby comes in at 4255; within PA alone it ranks 166 of 193. Population is about 10,749.
Checking the actual forecast
These figures come from PHILADELPHIA INTL AP, PA US, the NOAA station 4.0 miles from Darby, 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