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South Williamsport, PA weather and climate

Lycoming County, PA · population 6,216 · about 528 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at South Williamsport's own coordinates.

The year at a glance

Sunny days
168
clear or partly cloudy, per year
Precipitation
45 in
per year
Wet days
137
rain or snow per year
Snowfall
33 in
per year
Hot days
24
above 90 °F
Freezing nights
119
at or below 32 °F
Humidity
73%
average relative
Average temperature
52 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
20406080JanMarMayJulSepNovDaily high, Jan: 36 °FDaily high, Feb: 39 °FDaily high, Mar: 49 °FDaily high, Apr: 62 °FDaily high, May: 73 °FDaily high, Jun: 81 °FDaily high, Jul: 85 °FDaily high, Aug: 84 °FDaily high, Sep: 76 °FDaily high, Oct: 64 °FDaily high, Nov: 51 °FDaily high, Dec: 40 °FDaily low, Jan: 20 °FDaily low, Feb: 22 °FDaily low, Mar: 29 °FDaily low, Apr: 39 °FDaily low, May: 50 °FDaily low, Jun: 59 °FDaily low, Jul: 63 °FDaily low, Aug: 62 °FDaily low, Sep: 55 °FDaily low, Oct: 43 °FDaily low, Nov: 33 °FDaily low, Dec: 26 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high363949627381858476645140
Daily low202229395059636255433326

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.02.04.0JanMarMayJulSepNovSouth Williamsport, Jan: 3.2 inSouth Williamsport, Feb: 2.8 inSouth Williamsport, Mar: 3.9 inSouth Williamsport, Apr: 4.1 inSouth Williamsport, May: 4.0 inSouth Williamsport, Jun: 4.2 inSouth Williamsport, Jul: 3.7 inSouth Williamsport, Aug: 3.7 inSouth Williamsport, Sep: 4.6 inSouth Williamsport, Oct: 3.9 inSouth Williamsport, Nov: 3.5 inSouth Williamsport, Dec: 3.6 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
South Williamsport3.22.83.94.14.04.23.73.74.63.93.53.6

Monthly sunny days

Days each month with clear or partly cloudy skies.

051015JanMarMayJulSepNovSouth Williamsport, Jan: 10 daysSouth Williamsport, Feb: 11 daysSouth Williamsport, Mar: 13 daysSouth Williamsport, Apr: 13 daysSouth Williamsport, May: 15 daysSouth Williamsport, Jun: 16 daysSouth Williamsport, Jul: 18 daysSouth Williamsport, Aug: 18 daysSouth Williamsport, Sep: 16 daysSouth Williamsport, Oct: 16 daysSouth Williamsport, Nov: 13 daysSouth Williamsport, Dec: 10 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
South Williamsport101113131516181816161310

Compare South Williamsport with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered Pennsylvania city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).