Pennsylvania weather in May: Statewide normals and every place, NOAA 1991-2020
In May, Pennsylvania's statewide normal high is 71°F and normal low 47°F; normal highs run from 65°F in Laporte to 75°F in Phoenixville (NOAA 1991-2020 normals).
- Statewide normal high
- 71°FMay, 1991-2020
- Statewide normal low
- 47°FMay, 1991-2020
- Statewide normal precipitation
- 4.05 inMay
- Warmest place
- 75°Fnormal high, Phoenixville
- Coolest place
- 65°Fnormal high, Laporte
Where is Pennsylvania warmest and wettest in May?
Phoenixville has the warmest May afternoons (75°F) and Laporte the coolest (65°F). Confluence gets the most precipitation (4.92 in) and Marcus Hook the least (3.16 in).
Statewide, May averaged 57.0°F in 2021, 60.5°F in 2022, 56.2°F in 2023, 62.3°F in 2024, 58.1°F in 2025, 56.4°F in 2026, against a 1991-2020 normal of 58.6°F.
| Place | High | Low | Precip. | Snow |
|---|---|---|---|---|
| Philadelphia | 74°F | 54°F | 3.34 | 0.0 |
| Pittsburgh | 72°F | 51°F | 3.83 | 0.0 |
| Allentown | 74°F | 51°F | 3.65 | 0.0 |
| Reading | 74°F | 52°F | 3.51 | – |
| Erie | 68°F | 49°F | 3.50 | 0.0 |
| Lancaster | 74°F | 50°F | 3.44 | – |
| Harrisburg | 75°F | 53°F | 3.48 | – |
| York | 73°F | 50°F | 4.17 | – |
| Altoona | 71°F | 50°F | 3.72 | – |
| State College | 69°F | 50°F | 3.64 | 0.0 |
| Norristown | 75°F | 52°F | 4.25 | 0.0 |
| Williamsport | 72°F | 49°F | 3.86 | 0.0 |
| Lebanon | 72°F | 51°F | 3.99 | 0.0 |
| Pottstown | 71°F | 50°F | 3.69 | – |
| Chambersburg | 73°F | 52°F | 4.13 | 0.0 |
| West Chester | 73°F | 49°F | 3.81 | 0.0 |
| Carlisle | 73°F | 49°F | 4.73 | 0.0 |
| New Castle | 73°F | 47°F | 3.89 | 0.0 |
| Murrysville | 74°F | 51°F | 4.08 | 0.0 |
| Phoenixville | 75°F | 51°F | 3.30 | – |
| West Mifflin | 72°F | 52°F | 4.08 | – |
| Johnstown | 68°F | 49°F | 4.12 | – |
| McKeesport | 74°F | 47°F | 3.99 | – |
| Hanover | 72°F | 50°F | 3.88 | 0.0 |
| Indiana | 72°F | 46°F | 4.32 | 0.0 |
| Willow Grove | 72°F | 52°F | – | – |
| Carnot-Moon | 72°F | 49°F | 3.96 | – |
| Coatesville | 73°F | 50°F | 4.02 | 0.0 |
| Washington | 72°F | 49°F | 4.14 | 0.0 |
| Butler | 70°F | 45°F | 3.80 | 0.0 |
| Middletown | 74°F | 53°F | 3.83 | 0.0 |
| Uniontown | 73°F | 48°F | 4.36 | 0.0 |
| Sunbury | 72°F | 47°F | 3.77 | 0.0 |
| East Stroudsburg | 72°F | 47°F | 4.41 | 0.0 |
| Warren | 70°F | 45°F | 4.29 | 0.0 |
| Beaver Falls | 72°F | 48°F | 3.84 | – |
| Lock Haven | 73°F | 47°F | 4.00 | 0.0 |
| Lewistown | 73°F | 49°F | 4.16 | 0.0 |
| Doylestown | 72°F | 51°F | 4.27 | – |
| Bradford | 68°F | 43°F | 4.21 | – |
| DuBois | 68°F | 47°F | 3.69 | – |
| Connellsville | 73°F | 49°F | 4.72 | 0.0 |
| Franklin | 71°F | 46°F | 4.00 | 0.0 |
| New Holland | 73°F | 53°F | 3.52 | 0.0 |
| Clearfield | 70°F | 46°F | 3.68 | – |
| Shippensburg | 74°F | 51°F | 4.01 | 0.0 |
| Selinsgrove | 72°F | 49°F | 3.55 | – |
| Lehighton | 71°F | 48°F | 4.25 | 0.0 |
| Lewisburg | 72°F | 48°F | 3.93 | 0.0 |
| Titusville | 69°F | 43°F | 4.05 | 0.0 |
| Hamburg | 73°F | 50°F | 4.08 | 0.0 |
| Sellersville | 71°F | 48°F | 4.55 | 0.0 |
| Donora | 73°F | 49°F | 4.30 | 0.0 |
| Charleroi | 74°F | 51°F | 3.94 | 0.0 |
| Mount Pleasant | 71°F | 47°F | 4.27 | 0.0 |
| Clarion | 71°F | 44°F | 3.86 | – |
| Ridgway | 70°F | 43°F | 4.32 | 0.0 |
| Waynesburg | 73°F | 47°F | 4.34 | 0.0 |
| Slippery Rock | 69°F | 45°F | 4.14 | – |
| Mahanoy City | 67°F | 47°F | 4.65 | 0.0 |
| Kane | 67°F | 40°F | 4.51 | 0.1 |
| Loyalhanna | 72°F | 46°F | 4.00 | – |
| Wellsboro | 67°F | 43°F | 3.65 | 0.1 |
| Ebensburg | 68°F | 44°F | 4.64 | 0.0 |
| Mount Pocono | 65°F | 45°F | 4.06 | – |
| Union City | 68°F | 45°F | 4.36 | 0.0 |
| Towanda | 71°F | 46°F | 3.36 | 0.0 |
| Ford City | 72°F | 46°F | 3.99 | – |
| Philipsburg | 68°F | 45°F | 3.78 | 0.1 |
| Avoca | 72°F | 50°F | 3.26 | 0.0 |
| Landisville | 73°F | 48°F | 3.87 | 0.0 |
| Marcus Hook | 75°F | 55°F | 3.16 | – |
| Matamoras | 70°F | 45°F | 3.34 | 0.0 |
| Emsworth | 74°F | 50°F | 3.52 | – |
| Coudersport | 68°F | 41°F | 3.78 | 0.1 |
| Port Allegany | 68°F | 43°F | 3.83 | 0.0 |
| Meyersdale | 68°F | 43°F | 4.35 | 0.0 |
| Mercer | 71°F | 44°F | – | – |
| Emporium | 71°F | 45°F | 3.66 | 0.0 |
| Everett | 72°F | 48°F | 4.15 | 0.0 |
| Canton | 69°F | 44°F | 3.58 | 0.0 |
| Braddock | 72°F | 51°F | 3.86 | – |
| Avondale | 71°F | 50°F | 3.58 | – |
| Montrose | 67°F | 42°F | 4.26 | 0.2 |
| Biglerville | 72°F | 51°F | 4.42 | 0.0 |
| Hawley | 69°F | 43°F | 3.63 | 0.0 |
| Point Marion | 73°F | 48°F | 4.52 | – |
| Renovo | 72°F | 46°F | 3.85 | 0.0 |
| Linesville | 68°F | 47°F | 3.82 | 0.0 |
| Glenmoore | 72°F | 50°F | 4.03 | 0.0 |
| Millheim | 71°F | 45°F | 3.89 | 0.0 |
| Benton | 69°F | 46°F | 4.70 | 0.0 |
| Natrona | 72°F | 50°F | 3.90 | – |
| Clarence | 70°F | 40°F | 4.13 | 0.0 |
| Confluence | 72°F | 47°F | 4.92 | 0.0 |
| Tioga | 69°F | 44°F | 3.24 | 0.0 |
| Jamestown | 70°F | 46°F | 3.92 | 0.0 |
| Dushore | 68°F | 43°F | 4.10 | 0.1 |
| Tionesta | 72°F | 47°F | 4.36 | 0.0 |
| Laurelton | 75°F | 49°F | – | – |
| Springboro | 68°F | 44°F | 4.19 | 0.0 |
| Grampian | 69°F | 45°F | 4.05 | 0.1 |
| Laporte | 65°F | 44°F | 4.61 | 0.0 |
| Cashtown | 72°F | 49°F | 4.44 | – |
| Laurel Mountain | 69°F | 48°F | 4.49 | – |
| Oswayo | 68°F | 40°F | 3.66 | 0.2 |
| Donegal | 70°F | 47°F | 4.71 | – |
| Schenley | 74°F | 49°F | 4.15 | – |
| Acmetonia Lock 3 | 72°F | 49°F | 3.91 | – |
| Alvin R Bush Dam | 70°F | 47°F | – | – |
| Bear Gap | 71°F | 48°F | 4.15 | 0.0 |
| Bloserville (1 mi N) | 71°F | 50°F | 4.18 | – |
| Blue Marsh Lake | 72°F | 49°F | 3.83 | – |
| Bucksville | 72°F | 49°F | 4.43 | – |
| Chalk Hill (2 mi ENE) | 69°F | 43°F | 5.20 | 0.0 |
| Chandlers Valley (1 mi SE) | 68°F | 40°F | 4.39 | 0.1 |
| Clermont (1 mi NW) | 66°F | 42°F | 4.71 | 0.4 |
| Cooksburg (2 mi NW) | 69°F | 42°F | 4.13 | – |
| Cowanesque Dam | 69°F | 44°F | 3.15 | 0.0 |
| Dehart Dam | 71°F | 47°F | 4.42 | 0.0 |
| Eisenhower National Historic Site | 73°F | 49°F | 4.09 | – |
| Francis E Walter Dam | 67°F | 45°F | 4.17 | – |
| Glen Hazel 2 NE Dam | 67°F | 42°F | 4.32 | 0.2 |
| Glenwillard Dashields Lock and Dam | 72°F | 51°F | 3.55 | 0.0 |
| Graterford (1 mi E) | 72°F | 49°F | 3.99 | 0.0 |
| Grays Landing | 73°F | 48°F | 4.09 | 0.0 |
| Hidden Valley | 67°F | 47°F | 5.37 | – |
| Hopewell Morgantown | 72°F | 50°F | – | – |
| Laurel Summit | 65°F | 45°F | 5.47 | 0.3 |
| Milanville | 71°F | 45°F | 3.75 | – |
| Montgomery Lock and Dam | 71°F | 49°F | 3.75 | – |
| Neshaminy Falls | 72°F | 50°F | 4.00 | 0.0 |
| Octoraro Lake | 72°F | 50°F | 3.56 | 0.0 |
| Phila Franklin Inst | 76°F | 56°F | 4.06 | 0.0 |
| Philadelphia NE Airport | 75°F | 54°F | 3.61 | – |
| Pleasant Mount (1 mi W) | 65°F | 43°F | 4.91 | 0.0 |
| Port Meadville Airport | 69°F | 48°F | 3.73 | – |
| Prince Gallitzin State Park | 70°F | 45°F | 3.73 | 0.0 |
| Putneyville 2 SE Dam | 71°F | 45°F | 4.06 | 0.0 |
| Raystown Headquarters | 72°F | 50°F | 3.95 | – |
| Raystown Lake 2 | 72°F | 50°F | 4.40 | – |
| Rector (3 mi SSW) | 73°F | 46°F | 4.17 | – |
| Rodale Research Center | 72°F | 49°F | 3.77 | – |
| Safe Harbor Dam | 72°F | 53°F | 3.88 | 0.0 |
| Salina (3 mi W) | 71°F | 48°F | 4.23 | 0.0 |
| Shawnee State Park | 72°F | 46°F | 4.06 | – |
| South Mountain | 69°F | 49°F | 4.69 | 0.0 |
| Springtown (1 mi NNE) | 70°F | 49°F | 4.49 | 0.0 |
| Stevenson Dam | 70°F | 43°F | 3.83 | 0.0 |
| Wolfsburg | 72°F | 46°F | 4.37 | 0.0 |
| York 3 SSW Pump Station | 77°F | 50°F | 4.20 | 0.0 |
Source: NOAA NCEI nClimDiv statewide normals; NOAA NCEI 1991-2020 monthly normals for each station.