Williamsport, Pennsylvania Climate
United States
Pop. 29,201 Elev. 162 m / 532 ft
TZ: America/New_York (UTC-4) ·
Williamsport has mild summers with average highs of 84°F (29°C) in July, and frigid winters averaging 20°F (-7°C) in January. Humidity pushes the summer feels-like temperature to 92°F (33°C), while wind chill can drive winter lows to 12°F (-11°C). Rain falls on about 59 days per year (39.6 in / 1006 mm total), with snow on 2 days and 32 in (815 mm) of annual accumulation. The city averages 99 sunny days per year and around 29 thunderstorm days.
| Temperature | 84°F (29°C) high | 20°F (-7°C) low |
| Feels like | 92°F (33°C) high | 12°F (-11°C) low |
| Rain | 59 days | 39.6 in (1006 mm) /yr |
| Snow | 2 days | 32.1 in (815 mm) /yr |
| Sky | 99 sunny | 29 stormy |
| Wind | 2.3 mph (1.0 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, Jul, Aug, Sep
Sky & Air by Month
Cloud cover (%)
63
Jan 77
Feb 52
Mar 73
Apr 75
May 64
Jun 58
Jul 44
Aug 50
Sep 42
Oct 63
Nov 71
Dec Humidity (%)
57
Jan 60
Feb 54
Mar 57
Apr 74
May 75
Jun 76
Jul 70
Aug 70
Sep 70
Oct 67
Nov 68
Dec Weather Days by Month
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 4 mi Williamsport Regional Airport (IPT)
Ski resort 24 mi Ski Sawmill Family Resort
National park 93 mi Horseshoe Curve National Historic Landmark
Mountain peak
(5,102 ft) 252 mi Algonquin Peak
Hospital 1 mi Williamsport Regional Medical Center
Hiking trail 18 mi Winter Park Hiking
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 31°F -1°C | 20°F -7°C | 0.5 in 13 mm | 4.9 in125 mm | 7 |
| February | 36°F 2°C | 24°F -4°C | 2.1 in 53 mm | 11.0 in280 mm | 1 |
| March | 55°F 13°C | 34°F 1°C | 3.2 in 82 mm | 0.4 in10 mm | 10 |
| April | 62°F 17°C | 42°F 6°C | 3.2 in 82 mm | 1.0 in25 mm | 5 |
| May | 67°F 20°C | 51°F 11°C | 7.7 in 195 mm | — | 4 |
| June | 79°F 26°C | 61°F 16°C | 5.7 in 146 mm | — | 8 |
| July | 84°F 29°C | 66°F 19°C | 4.0 in 102 mm | — | 7 |
| August | 78°F 26°C | 58°F 15°C | 2.1 in 53 mm | — | 17 |
| September | 76°F 24°C | 54°F 12°C | 1.9 in 48 mm | — | 15 |
| October | 62°F 17°C | 43°F 6°C | 5.7 in 145 mm | — | 17 |
| November | 49°F 9°C | 34°F 1°C | 1.7 in 42 mm | 2.8 in72 mm | 3 |
| December | 34°F 1°C | 21°F -6°C | 1.8 in 46 mm | 11.9 in304 mm | 5 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 7 | 0 |
| February | 1 | 0 |
| March | 10 | 2 |
| April | 5 | 2 |
| May | 4 | 4 |
| June | 8 | 4 |
| July | 7 | 5 |
| August | 17 | 3 |
| September | 15 | 3 |
| October | 17 | 4 |
| November | 3 | 1 |
| December | 5 | 1 |