Port Matilda, PA frost dates
Last spring frostMay 13median date
First fall frostOct 1median date
Growing season141 daysfrost-free
Hardiness zone6bZone 6b
How Port Matilda compares
- In 8 years out of 10, the last spring frost in Port Matilda falls between April 25 and May 29, a 34-day window. The first fall frost falls between September 19 and October 18.
- The median last frost is 16 days later than the Pennsylvania median of Apr 27.
- Its 141-day growing season is longer than 5% of the 1,787 Pennsylvania places with a regular frost season (state median 175 days).
- The last frost is 21 days later than the zone 6b median of Apr 22. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 6b chart.
- The weather station records an average of 145 nights a year at or below 32°F.
- Compared with Harrisburg, PA, 118 km away, the last frost here is 28 days later than there and the growing season is 50 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 25 |
| 50% (median) | May 13 |
| 10% (safe for tender plants) | May 29 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 19 |
| 50% (median) | October 1 |
| 90% (late) | October 18 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Port Matilda, PA
Port Matilda, PA frost dates — last frost May 13, first frost Oct 1, zone 6b. whenisthelastfrost.com
Crop
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Start indoors: Feb 18 to Mar 4Transplant outside: Apr 15 to Apr 29
Start indoors: Mar 4 to Mar 18Transplant outside: May 27 to Jun 10
Start indoors: Mar 4 to Mar 18Transplant outside: May 27 to Jun 10
Start indoors: Mar 18 to Apr 1Transplant outside: May 20 to Jun 3
Start indoors: Mar 18 to Apr 1Transplant outside: Apr 22 to May 6Sow outdoors: Apr 15 to May 20Plant for fall: Aug 6 to Sep 3
Start indoors: Mar 18 to Apr 1Transplant outside: Apr 15 to Apr 29Sow outdoors: Apr 15 to Apr 29Plant for fall: Jul 23 to Aug 13
Start indoors: Mar 18 to Apr 1Transplant outside: Apr 29 to May 13Plant for fall: Jun 25 to Jul 16
Start indoors: Mar 18 to Apr 1Transplant outside: Apr 22 to May 6Plant for fall: Jun 25 to Jul 16
Start indoors: Mar 18 to Apr 1Transplant outside: Apr 29 to May 13Plant for fall: Jun 25 to Jul 16
Start indoors: Apr 1 to Apr 15Transplant outside: Jun 3 to Jun 17Sow outdoors: Jun 3 to Jun 17
Start indoors: Apr 1 to Apr 15Transplant outside: May 20 to Jun 3
Sow outdoors: Apr 1 to Apr 22Plant for fall: Jul 9 to Jul 30
Sow outdoors: Apr 1 to Apr 22Plant for fall: Aug 6 to Aug 27
Sow outdoors: Apr 8 to May 20Plant for fall: Aug 20 to Sep 10
Start indoors: Apr 15 to Apr 22Transplant outside: May 27 to Jun 3Sow outdoors: May 20 to Jun 3Plant for fall: Jul 16 to Jul 30
Start indoors: Apr 15 to Apr 22Sow outdoors: May 20 to Jun 3Plant for fall: Jul 23 to Aug 6
Start indoors: Apr 15 to Apr 22Sow outdoors: May 20 to Jun 3
Start indoors: Apr 15 to Apr 22Transplant outside: May 27 to Jun 10
Sow outdoors: Apr 22 to May 20Plant for fall: Jul 9 to Jul 23
Sow outdoors: Apr 22 to May 20Plant for fall: Jul 23 to Aug 6
Sow outdoors: Apr 22 to May 13
Sow outdoors: Apr 29 to May 27Plant for fall: Jul 23 to Aug 6
Sow outdoors: Apr 29 to May 20Plant for fall: Aug 6 to Aug 27
Sow outdoors: May 20 to Jun 10Plant for fall: Jul 16 to Jul 30
Sow outdoors: May 20 to Jun 3
Transplant outside: May 27 to Jun 17
Plant for fall: Sep 17 to Oct 22
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Port Matilda, PA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 18 – Mar 4 | Apr 15 – Apr 29 | — | — |
| Peppers | Mar 4 – Mar 18 | May 27 – Jun 10 | — | — |
| Eggplant | Mar 4 – Mar 18 | May 27 – Jun 10 | — | — |
| Tomatoes | Mar 18 – Apr 1 | May 20 – Jun 3 | — | — |
| Lettuce | Mar 18 – Apr 1 | Apr 22 – May 6 | Apr 15 – May 20 | Aug 6 – Sep 3 |
| Kale | Mar 18 – Apr 1 | Apr 15 – Apr 29 | Apr 15 – Apr 29 | Jul 23 – Aug 13 |
| Broccoli | Mar 18 – Apr 1 | Apr 29 – May 13 | — | Jun 25 – Jul 16 |
| Cabbage | Mar 18 – Apr 1 | Apr 22 – May 6 | — | Jun 25 – Jul 16 |
| Cauliflower | Mar 18 – Apr 1 | Apr 29 – May 13 | — | Jun 25 – Jul 16 |
| Okra | Apr 1 – Apr 15 | Jun 3 – Jun 17 | Jun 3 – Jun 17 | — |
| Basil | Apr 1 – Apr 15 | May 20 – Jun 3 | — | — |
| Peas | — | — | Apr 1 – Apr 22 | Jul 9 – Jul 30 |
| Spinach | — | — | Apr 1 – Apr 22 | Aug 6 – Aug 27 |
| Radishes | — | — | Apr 8 – May 20 | Aug 20 – Sep 10 |
| Cucumbers | Apr 15 – Apr 22 | May 27 – Jun 3 | May 20 – Jun 3 | Jul 16 – Jul 30 |
| Zucchini & Summer Squash | Apr 15 – Apr 22 | — | May 20 – Jun 3 | Jul 23 – Aug 6 |
| Winter Squash & Pumpkins | Apr 15 – Apr 22 | — | May 20 – Jun 3 | — |
| Melons & Watermelon | Apr 15 – Apr 22 | May 27 – Jun 10 | — | — |
| Carrots | — | — | Apr 22 – May 20 | Jul 9 – Jul 23 |
| Beets | — | — | Apr 22 – May 20 | Jul 23 – Aug 6 |
| Potatoes | — | — | Apr 22 – May 13 | — |
| Swiss Chard | — | — | Apr 29 – May 27 | Jul 23 – Aug 6 |
| Cilantro | — | — | Apr 29 – May 20 | Aug 6 – Aug 27 |
| Green Beans | — | — | May 20 – Jun 10 | Jul 16 – Jul 30 |
| Sweet Corn | — | — | May 20 – Jun 3 | — |
| Sweet Potatoes | — | May 27 – Jun 17 | — | — |
| Garlic | — | — | — | Sep 17 – Oct 22 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Philipsburg 2 S, PA weather station, 14 km away (elevation 1,719 ft (524 m)).
Frost dates near Port Matilda
- Warriors Mark Apr 20 · Oct 26
- Pennsylvania Furnace Apr 20 · Oct 26
- Sandy Ridge May 13 · Oct 1
- Philipsburg May 13 · Oct 1
- Julian Apr 20 · Oct 26
- Hawk Run May 13 · Oct 1
- Munson May 13 · Oct 1
- Lanse May 13 · Oct 1
- Pine Grove Mills Apr 20 · Oct 26
- State College Apr 20 · Oct 26
Frequently asked questions
When is the last frost in Port Matilda, PA?
The median last spring frost in Port Matilda, PA is May 13. There is still about a 10% chance of frost after May 29, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Port Matilda, PA?
The median first fall frost is October 1, with about a 10% chance of frost before September 19.
How long is the growing season in Port Matilda, PA?
About 141 days between the median last spring frost and first fall frost.
What planting zone is Port Matilda, PA?
Port Matilda, PA is in USDA hardiness zone 6b.