Climate Williamsport - Pennsylvania
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 35 | 40 | 49 | 63 | 73 | 81 |
| Average low in ºF Av. low Lo | 20 | 22 | 29 | 39 | 48 | 58 |
| Av. precipitation in inch Av. precip. Pre. | 2.80 | 2.50 | 3.10 | 3.38 | 3.89 | 4.02 |
| Av. snowfall in inch Snowfall Sn | 9 | 10 | 5 | 1 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 86 | 84 | 76 | 64 | 52 | 39 |
| Average low in ºF Av. low Lo | 63 | 61 | 54 | 42 | 33 | 24 |
| Av. precipitation in inch Av. precip. Pre. | 3.83 | 3.68 | 4.33 | 3.37 | 3.53 | 2.96 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 0 | 1 | 6 |
What is the average weather in Williamsport, Pennsylvania?
Williamsport experiences a humid continental climate, marked by a very strong seasonal temperature contrast. Summers are warm, while winters are cold and bring significant snowfall. Precipitation is fairly wet overall, spread relatively evenly throughout the year, with winter moisture often arriving as snow.
Williamsport Climate Graph - Pennsylvania Climate Chart
Daily normals Williamsport - Pennsylvania - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 36.5 | 22.2 | 0.10 | 0.10 | 2.00 | 5.08 |
| 2 Jan | 36.4 | 22.0 | 0.21 | 0.21 | 4.00 | 10.16 |
| 3 Jan | 36.2 | 21.8 | 0.31 | 0.31 | 6.00 | 15.24 |
| 4 Jan | 36.1 | 21.6 | 0.42 | 0.42 | 8.00 | 20.32 |
| 5 Jan | 36.0 | 21.5 | 0.52 | 0.52 | 10.00 | 25.40 |
| 6 Jan | 35.9 | 21.3 | 0.62 | 0.62 | 12.00 | 30.48 |
| 7 Jan | 35.8 | 21.2 | 0.72 | 0.72 | 15.00 | 38.10 |
| 8 Jan | 35.7 | 21.0 | 0.81 | 0.81 | 17.00 | 43.18 |
| 9 Jan | 35.6 | 20.9 | 0.91 | 0.91 | 20.00 | 50.80 |
| 10 Jan | 35.6 | 20.8 | 1.01 | 1.01 | 23.00 | 58.42 |
| 11 Jan | 35.5 | 20.6 | 1.11 | 1.11 | 25.00 | 63.50 |
| 12 Jan | 35.4 | 20.5 | 1.21 | 1.21 | 28.00 | 71.12 |
| 13 Jan | 35.4 | 20.4 | 1.31 | 1.31 | 31.00 | 78.74 |
| 14 Jan | 35.3 | 20.3 | 1.41 | 1.41 | 34.00 | 86.36 |
| 15 Jan | 35.3 | 20.2 | 1.51 | 1.51 | 37.00 | 93.98 |
| 16 Jan | 35.3 | 20.2 | 1.61 | 1.61 | 40.00 | 101.60 |
| 17 Jan | 35.2 | 20.1 | 1.71 | 1.71 | 43.00 | 109.22 |
| 18 Jan | 35.2 | 20.0 | 1.81 | 1.81 | 45.00 | 114.30 |
| 19 Jan | 35.2 | 20.0 | 1.90 | 1.90 | 48.00 | 121.92 |
| 20 Jan | 35.2 | 19.9 | 1.99 | 1.99 | 51.00 | 129.54 |
| 21 Jan | 35.2 | 19.9 | 2.09 | 2.09 | 54.00 | 137.16 |
| 22 Jan | 35.3 | 19.9 | 2.18 | 2.18 | 57.00 | 144.78 |
| 23 Jan | 35.3 | 19.9 | 2.28 | 2.28 | 60.00 | 152.40 |
| 24 Jan | 35.3 | 19.9 | 2.37 | 2.37 | 63.00 | 160.02 |
| 25 Jan | 35.4 | 19.9 | 2.47 | 2.47 | 67.00 | 170.18 |
| 26 Jan | 35.5 | 19.9 | 2.56 | 2.56 | 70.00 | 177.80 |
| 27 Jan | 35.5 | 19.9 | 2.64 | 2.64 | 73.00 | 185.42 |
| 28 Jan | 35.6 | 19.9 | 2.73 | 2.73 | 77.00 | 195.58 |
| 29 Jan | 35.7 | 19.9 | 2.82 | 2.82 | 80.00 | 203.20 |
| 30 Jan | 35.8 | 20.0 | 2.90 | 2.90 | 83.00 | 210.82 |
| 31 Jan | 35.9 | 20.0 | 2.99 | 2.99 | 87.00 | 220.98 |
Weather history Williamsport - May 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 May | 60.1 | 35.1 | 0.12 | 0.00 | 0.0 |
| 02 May | 55.0 | 37.9 | 0.04 | 0.00 | 0.0 |
| 03 May | 62.1 | 39.0 | 0.00 | 0.00 | 0.0 |
| 04 May | 79.0 | 35.1 | 0.00 | 0.00 | 0.0 |
| 05 May | 84.0 | 51.1 | T | 0.00 | 0.0 |
| 06 May | 64.0 | 50.0 | 0.26 | 0.00 | 0.0 |
| 07 May | 64.9 | 42.1 | 0.03 | 0.00 | 0.0 |
| 08 May | 60.1 | 37.0 | 0.15 | 0.00 | 0.0 |
| 09 May | 62.1 | 48.9 | 0.30 | 0.00 | 0.0 |
| 10 May | 70.0 | 50.0 | 0.02 | 0.00 | 0.0 |
| 11 May | 66.0 | 39.9 | 0.00 | 0.00 | 0.0 |
| 12 May | 70.0 | 35.1 | 0.00 | 0.00 | 0.0 |
| 13 May | 70.0 | 51.1 | 0.29 | 0.00 | 0.0 |
| 14 May | 53.1 | 46.0 | 0.01 | 0.00 | 0.0 |
| 15 May | 73.9 | 44.1 | 0.00 | 0.00 | 0.0 |
| 16 May | 84.9 | 43.0 | T | 0.00 | 0.0 |
| 17 May | 90.0 | 59.0 | 0.00 | 0.00 | 0.0 |
| 18 May | 96.1 | 64.0 | T | 0.00 | 0.0 |
| 19 May | 91.0 | 64.9 | 0.27 | 0.00 | 0.0 |
| 20 May | 86.0 | 61.0 | 0.21 | 0.00 | 0.0 |
| 21 May | 64.9 | 50.0 | 0.02 | 0.00 | 0.0 |
| 22 May | 66.0 | 45.0 | 0.00 | 0.00 | 0.0 |
| 23 May | 57.9 | 46.0 | 1.16 | 0.00 | 0.0 |
| 24 May | 61.0 | 48.9 | 0.04 | 0.00 | 0.0 |
| 25 May | 79.0 | 57.0 | 0.24 | 0.00 | 0.0 |
| 26 May | 82.0 | 51.1 | 0.00 | 0.00 | 0.0 |
| 27 May | 88.0 | 64.0 | T | 0.00 | 0.0 |
| 28 May | 73.9 | 52.0 | 0.00 | 0.00 | 0.0 |
| 29 May | 82.0 | 46.0 | 0.00 | 0.00 | 0.0 |
| 30 May | 69.1 | 50.0 | 0.00 | 0.00 | 0.0 |
| 31 May | 80.1 | 42.1 | 0.00 | 0.00 | 0.0 |
Past weather Williamsport
| May 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 72.5 ºF | 35 ºF | |
| Average low temperature Av. low temp. | 47.9 ºF | 20 ºF | |
| Total precipitation Total precip. | 3.16 inch | 2.80 inch | |
| Total snowfall Total snowfall | 0.00 inch | 9 inch | |
| Highest max temperature Highest max temp. | 96.1 ºF | - | |
| Lowest max temperature Lowest max temp. | 53.1 ºF | - | |
| Highest min temperature Highest min temp. | 64.9 ºF | - | |
| Lowest min temperature Lowest min temp. | 35.1 ºF | - | |
Past weather May 2026 incomplete - Missing data
Geo Williamsport - Pennsylvania
| Country | United States | |
|---|---|---|
| State | Pennsylvania | |
| County | - | |
| City | Williamsport | |
| Zip Code | 17701 | |
| Longitude | -77 dec. degr. | |
| Latitude | 41.24 dec. degr. | |
| Altitude - Elevation | 518ft | |
| ICAO | - | |
| IATA | - |
Date and Time Williamsport - Pennsylvania
| Local Time | 11:03 PM | |
|---|---|---|
| Sunrise | 05:39 AM | |
| Sunset | 08:45 PM | |
| Day/Night | Night | |
| Timezone | Eastern Daylight Time | |
| Timezone DB | America - New York |
Map of Williamsport - Pennsylvania
USGS National Map — Open interactive map
Williamsport weather averages
| Annual high temperature | 62ºF |
| Annual low temperature | 41ºF |
| Average annual precip. | 41.39 inch |
| Av. annual snowfall | 32 inch |
Station Data
Monthly averages Williamsport
Longitude: -77.0011, Latitude: 41.2412
Average weather Williamsport, PA - 17701
Monthly: 1991-2020 normals
History: 2008-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...