Pennsylvania · 55 stations
Pennsylvania Frost Dates: 55 Weather Stations
55 NOAA weather stations in Pennsylvania with at least 25 years of frost records.
| Station | Zone | Last spring frost (50%) | First fall frost (50%) | Frost-free days |
|---|---|---|---|---|
| Allentown, PA | 7a | April 20 | October 24 | 184 |
| Altoona, PA | 6b | April 25 | October 21 | 176 |
| Biglerville, PA | 7a | April 15 | October 27 | 194 |
| Bradford, PA | 5b | May 18 | October 1 | 136 |
| Bradford 4 SW Research 5, PA | 5b | May 18 | October 4 | 140 |
| Butler, PA | 6b | May 7 | October 14 | 159 |
| Canton, PA | 6a | May 16 | October 2 | 139 |
| Chambersburg, PA | 7a | April 18 | October 25 | 188 |
| Dubois, PA | 6a | May 6 | October 14 | 160 |
| Ebensburg, PA | 6a | May 17 | October 2 | 136 |
| Erie, PA | 7a | April 26 | November 4 | 192 |
| Everett, PA | 6b | April 27 | October 17 | 170 |
| Franklin, PA | 6b | May 2 | October 23 | 171 |
| Hamburg, PA | 7a | April 16 | October 25 | 189 |
| Hawley, PA | 6a | May 10 | October 4 | 146 |
| Indiana, PA | 6b | May 8 | October 13 | 157 |
| Jamestown, PA | 6a | May 4 | October 14 | 161 |
| Kane, PA | 5b | May 24 | September 28 | 126 |
| Landisville, PA | 7a | April 30 | October 10 | 162 |
| Lebanon, PA | 7a | April 20 | October 25 | 185 |
| Lewistown, PA | 7a | April 21 | October 24 | 185 |
| Linesville, PA | 6a | April 30 | October 23 | 177 |
| Lock Haven, PA | 6b | April 30 | October 20 | 173 |
| McKeesport, PA | 6b | May 2 | October 20 | 170 |
| New Castle, PA | 6b | April 30 | October 23 | 175 |
| New Holland, PA | 7a | April 14 | November 1 | 198 |
| Phila Franklin Inst, PA | 7b | March 30 | November 17 | 232 |
| Philadelphia, PA | 7b | April 2 | November 10 | 224 |
| Phoenixville, PA | 7a | April 18 | October 27 | 192 |
| Pittsburgh, PA | 6b | April 23 | October 23 | 181 |
| Pleasant Mount, PA | 5b | May 14 | October 1 | 140 |
| Renovo, PA | 6a | April 30 | October 22 | 173 |
| Ridgway, PA | 6a | May 13 | October 11 | 150 |
| Salina, PA | 6b | April 29 | October 20 | 171 |
| Selinsgrove, PA | 6b | April 25 | October 22 | 178 |
| Shippensburg, PA | 7a | April 19 | October 24 | 188 |
| Slippery Rock, PA | 6a | May 7 | October 14 | 158 |
| State College, PA | 6b | April 20 | October 26 | 187 |
| Stevenson Dam, PA | 6a | May 10 | October 16 | 157 |
| Titusville, PA | 6a | May 12 | October 10 | 149 |
| Towanda, PA | 6b | May 2 | October 15 | 165 |
| Uniontown, PA | 6b | April 30 | October 18 | 171 |
| Warren, PA | 6a | May 4 | October 21 | 168 |
| Waynesburg, PA | 6b | May 3 | October 15 | 164 |
| Wilkes-Barre, PA | 6b | April 23 | October 20 | 178 |
| Williamsport, PA | 6b | April 24 | October 23 | 180 |
| near Elkland, PA | 5b | May 9 | October 12 | 155 |
| near Ford City, PA | 6b | May 4 | October 16 | 164 |
| near Industry, PA | 7a | April 28 | October 26 | 178 |
| near Lancaster, PA | 7a | April 19 | October 24 | 186 |
| near Martinsburg, PA | 6b | April 23 | October 21 | 177 |
| near Middletown, PA | 7b | April 9 | November 2 | 206 |
| near Oxford, PA | 7a | April 26 | October 22 | 179 |
| near Patton, PA | 6a | May 10 | October 5 | 149 |
| near Whitfield, PA | 7a | April 26 | October 19 | 176 |