Lancaster, PA Weather & Climate Normals
Lancaster's real weather, in one number
Lancaster, PA scores 47/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 5 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Lancaster's hottest and coldest months
Lancaster's hottest month is Jul, averaging 76°F; its coldest is Jan, averaging 31°F, a 44.8°F swing across the year, a middling gap by national standards.
Rain and snow in Lancaster
Lancaster averages 44.15in of precipitation a year across roughly 124 days with measurable rain or snow, and 21.4in of snow a year.
Where Lancaster ranks
Lancaster ranks 2564 of 4876 US cities in this dataset for comfort score, and 72 of 193 within PA. About 58,441 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from LANCASTER 2NE FLTR PLT, PA US, 1.5 miles from Lancaster, not a prediction for any specific day.
More on how this is worked out
What a 30-year climate normal actually is · Why this uses the nearest NOAA station