Mild
Average highs are around 25°C, so days are mild rather than hot.
September verdict
Good for holiday weather
Average highs are around 25°C, so days are mild rather than hot. Sunshine averages 7.2h per day, enough for a balanced month. Rainfall averages 97mm, so some wet days are possible.

Monthly averages
Temp
25°C
Rain
97mm
Sun
7.2h
Weather score
62
Good
Mild
Average highs are around 25°C, so days are mild rather than hot.
Showers
Rainfall averages 97mm, so some wet days are possible.
Some sun
Sunshine averages 7.2h per day, enough for a balanced month.
Map
Compare Lancaster, Pennsylvania, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
September25°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
September97mm average rain
September is close to Lancaster's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
September7.2 hours average sun
September sits close to Lancaster's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
September62 weather score
September sits close to Lancaster's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
Lancaster Marriott at Penn SquareLancaster, Pennsylvania, USA
Courtyard LancasterLancaster, Pennsylvania, USA
Fairfield Inn & Suites LancasterLancaster, Pennsylvania, USA
Fairfield Inn & Suites Lancaster East at The OutletsLancaster, Pennsylvania, USA
Fairfield Inn & Suites Lancaster PalmdaleLancaster, California, USA
SpringHill Suites by Marriott Lancaster PalmdaleLancaster, California, USA