Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
Weather Guide
Williamsport, Pennsylvania, United States Average Monthly Weather
Weather score43Mixed annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 15°C, sunshine averages 6.4h per day, and rainfall totals about 989mm.
Annual weather
Annual averages
Temp
15°C
Rain
989mm
Annual total
Sun
6.4h
Weather score
43
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 86mm, so some wet days are possible.
Bright
Sunshine averages 8.6h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Williamsport, Pennsylvania, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August27°C average high
August is one of Williamsport's warmest months, with daytime heat above the yearly average.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
August86mm average rain
August sits near Williamsport's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April and August to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August8.6 hours average sun
August is brighter than Williamsport's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
August71 weather score
August is one of Williamsport's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
