Frost Dates & Planting Calendars in Pennsylvania
In Pennsylvania, the average last spring frost ranges from March 30 in Philadelphia to May 15 in Hermitage, and the average first fall frost from October 3 in Hermitage to November 17 in Bala Cynwyd. Pick a city for its full frost-date summary and 42-crop planting calendar.
| City | Last Spring Frost (typical) | First Fall Frost (typical) | Growing Season | USDA Zone |
|---|---|---|---|---|
| Philadelphia | March 30 | November 17 | 232 days | 7b |
| Pittsburgh | April 24 | October 27 | 186 days | 7a |
| Allentown | April 20 | October 24 | 184 days | 7a |
| Erie | April 26 | November 4 | 192 days | 7a |
| Reading | April 14 | October 29 | 197 days | 7a |
| Scranton | April 23 | October 20 | 178 days | 6b |
| Bethlehem | April 20 | October 24 | 184 days | 7a |
| Bensalem | April 21 | October 25 | 185 days | 7b |
| Lancaster | April 19 | October 24 | 186 days | 7a |
| Abington | April 11 | November 1 | 205 days | 7b |
| Levittown | April 21 | October 25 | 185 days | 7b |
| Havertown | March 30 | November 17 | 232 days | 7b |
| Harrisburg | April 15 | October 23 | 189 days | 7a |
| Altoona | April 25 | October 21 | 176 days | 6b |
| York | April 26 | October 19 | 177 days | 7a |
| State College | April 20 | October 26 | 187 days | 6b |
| Wilkes-Barre | April 23 | October 20 | 178 days | 7a |
| Norristown | April 8 | October 31 | 203 days | 7a |
| Chester | March 30 | November 16 | 230 days | 7b |
| Mount Lebanon | April 18 | October 28 | 193 days | 6b |
| Bethel Park | April 18 | October 28 | 193 days | 6b |
| Wayne | April 8 | October 31 | 203 days | 7a |
| Radnor | April 8 | October 31 | 203 days | 7a |
| Williamsport | April 25 | October 24 | 181 days | 6a |
| Monroeville | April 22 | October 25 | 186 days | 6b |
| Cranberry Township | April 8 | November 8 | 212 days | 6b |
| Drexel Hill | April 2 | November 10 | 224 days | 7b |
| Plum | April 16 | November 1 | 197 days | 6b |
| Back Mountain | April 23 | October 20 | 178 days | 6a |
| Easton | April 18 | October 25 | 188 days | 7a |
| Lebanon | April 20 | October 25 | 185 days | 7a |
| Whitehall Township | April 20 | October 24 | 184 days | 7a |
| Hazleton | April 30 | October 22 | 175 days | 6b |
| Springfield | April 2 | November 10 | 224 days | 7b |
| Pottstown | April 20 | October 23 | 186 days | 7a |
| New Castle | April 30 | October 23 | 175 days | 6a |
| Allison Park | April 16 | November 1 | 197 days | 6b |
| Chambersburg | April 18 | October 25 | 188 days | 7a |
| Murrysville | April 22 | October 25 | 186 days | 6b |
| West Mifflin | May 2 | October 20 | 170 days | 6b |
| Johnstown | April 29 | October 21 | 176 days | 6b |
| King of Prussia | April 8 | October 31 | 203 days | 7a |
| West Chester | April 26 | October 18 | 174 days | 7a |
| Baldwin | April 18 | October 28 | 193 days | 6b |
| McKeesport | May 2 | October 20 | 170 days | 6b |
| Upper Saint Clair | April 18 | October 28 | 193 days | 6b |
| Carlisle | April 23 | October 18 | 177 days | 7a |
| Limerick | April 20 | October 23 | 186 days | 7a |
| Phoenixville | April 18 | October 27 | 192 days | 7a |
| Lansdale | April 24 | October 15 | 173 days | 7a |
| Hermitage | May 15 | October 3 | 140 days | 6a |
| Wilkinsburg | April 5 | November 10 | 219 days | 6b |
| Willow Grove | April 11 | November 1 | 205 days | 7b |
| Hanover | April 24 | October 20 | 177 days | 7a |
| Fullerton | April 20 | October 24 | 184 days | 7a |
| Horsham | April 11 | November 1 | 205 days | 7a |
| West Norriton | April 8 | October 31 | 203 days | 7a |
| Bloomsburg | April 27 | October 20 | 172 days | 6b |
| Greensburg | May 1 | October 13 | 164 days | 6b |
| Franklin Park | April 24 | October 27 | 186 days | 6b |
| Hershey | April 9 | November 2 | 206 days | 7a |
| Indiana | May 8 | October 13 | 157 days | 6b |
| Ephrata | April 18 | October 25 | 186 days | 7a |
| Whitehall | April 18 | October 28 | 193 days | 6b |
| Pottsville | April 30 | October 22 | 175 days | 6b |
| East Norriton | April 8 | October 31 | 203 days | 7a |
| Sharon | May 1 | October 17 | 167 days | 6a |
| Washington | April 24 | October 23 | 181 days | 6b |
| South Park Township | April 18 | October 28 | 193 days | 6b |
| Dunmore | April 23 | October 20 | 178 days | 6b |
| Butler | May 7 | October 14 | 159 days | 6b |
| Colonial Park | April 15 | October 23 | 189 days | 7a |
| Coatesville | April 19 | October 25 | 190 days | 7a |
| Saint Marys | May 14 | October 6 | 143 days | 5b |
| Meadville | April 30 | October 23 | 175 days | 6a |
| Kingston | April 23 | October 20 | 178 days | 6b |
| Weigelstown | April 27 | October 18 | 174 days | 7a |
| New Kensington | April 16 | November 1 | 197 days | 6b |
| Montgomeryville | April 11 | November 1 | 205 days | 7a |
| Ardmore | March 30 | November 17 | 232 days | 7b |
| Fernway | April 27 | October 25 | 178 days | 6b |
| Lower Burrell | April 16 | November 1 | 197 days | 6b |
| Landenberg | April 19 | October 26 | 189 days | 7a |
| Elizabethtown | April 9 | November 2 | 206 days | 7a |
| Yeadon | March 30 | November 17 | 232 days | 7b |
| Carnot-Moon | April 28 | October 18 | 172 days | 6b |
| Emmaus | April 20 | October 24 | 184 days | 7a |
| Jefferson Hills | April 18 | October 28 | 193 days | 6b |
| Munhall | April 5 | November 10 | 219 days | 6b |
| Shiloh | April 26 | October 19 | 177 days | 6a |
| Shiloh | May 4 | October 11 | 161 days | 6a |
| Mountain Top | May 7 | October 6 | 153 days | 6b |
| Natrona Heights | April 16 | November 2 | 199 days | 6b |
| Waynesboro | April 25 | October 19 | 176 days | 7a |
| Broomall | April 8 | October 31 | 203 days | 7b |
| Darby | April 2 | November 10 | 224 days | 7b |
| Lansdowne | April 2 | November 10 | 224 days | 7b |
| North Versailles | April 5 | November 10 | 219 days | 6b |
| Wyomissing | April 14 | October 29 | 197 days | 7a |
| Columbia | April 30 | October 10 | 162 days | 7a |
| Nanticoke | May 7 | October 6 | 153 days | 6b |
| Berwick | May 4 | October 11 | 159 days | 6b |
| East Stroudsburg | May 1 | October 12 | 163 days | 6b |
| Oil City | May 2 | October 23 | 171 days | 6a |
| Uniontown | April 30 | October 18 | 171 days | 6b |
| Croydon | April 21 | October 25 | 185 days | 7b |
| Northampton | April 20 | October 24 | 184 days | 7a |
| Progress | April 15 | October 23 | 189 days | 7a |
| Park Forest Village | April 20 | October 26 | 187 days | 6b |
| Sunbury | April 30 | October 13 | 166 days | 6b |
| Lock Haven | April 30 | October 20 | 173 days | 6a |
| Bristol | April 21 | October 25 | 185 days | 7b |
| Brentwood | April 18 | October 28 | 193 days | 6b |
| Woodlyn | April 2 | November 10 | 224 days | 7b |
| Economy | April 8 | November 8 | 212 days | 6b |
| Jeannette | April 22 | October 25 | 186 days | 6b |
| Warren | May 4 | October 21 | 168 days | 6a |
| Bala Cynwyd | March 30 | November 17 | 232 days | 7b |
| Harleysville | April 24 | October 15 | 173 days | 7a |
| Lititz | April 18 | October 25 | 186 days | 7a |
| Aliquippa | April 8 | November 8 | 212 days | 6b |
When to Plant in Pennsylvania
- Tomatoes
- Peppers
- Eggplant
- Cucumbers
- Zucchini
- Winter Squash
- Pumpkins
- Watermelon
- Cantaloupe
- Corn
- Green Beans
- Peas
- Lettuce
- Spinach
- Kale
- Arugula
- Swiss Chard
- Broccoli
- Cauliflower
- Cabbage
- Brussels Sprouts
- Carrots
- Beets
- Radishes
- Turnips
- Onions
- Garlic
- Potatoes
- Sweet Potatoes
- Asparagus
- Basil
- Cilantro
- Parsley
- Dill
- Oregano
- Thyme
- Sunflowers
- Zinnias
- Marigolds
- Cosmos
- Nasturtiums
- Dahlias