Millerton, PA frost dates
Last spring frostMay 9median date
First fall frostOct 12median date
Growing season156 daysfrost-free
Hardiness zone6aZone 6a
How Millerton compares
- In 8 years out of 10, the last spring frost in Millerton falls between April 25 and May 25, a 30-day window. The first fall frost falls between September 29 and October 28.
- The median last frost is 12 days later than the Pennsylvania median of Apr 27.
- Its 156-day growing season is longer than 18% of the 1,787 Pennsylvania places with a regular frost season (state median 175 days).
- The last frost is 10 days later than the zone 6a median of Apr 29. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 6a chart.
- The weather station records an average of 161 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 25 |
| 50% (median) | May 9 |
| 10% (safe for tender plants) | May 25 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 29 |
| 50% (median) | October 12 |
| 90% (late) | October 28 |
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 Millerton, PA
Millerton, PA frost dates — last frost May 9, first frost Oct 12, zone 6a. whenisthelastfrost.com
Crop
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Start indoors: Feb 14 to Feb 28Transplant outside: Apr 11 to Apr 25
Start indoors: Feb 28 to Mar 14Transplant outside: May 23 to Jun 6
Start indoors: Feb 28 to Mar 14Transplant outside: May 23 to Jun 6
Start indoors: Mar 14 to Mar 28Transplant outside: May 16 to May 30
Start indoors: Mar 14 to Mar 28Transplant outside: Apr 18 to May 2Sow outdoors: Apr 11 to May 16Plant for fall: Aug 17 to Sep 14
Start indoors: Mar 14 to Mar 28Transplant outside: Apr 11 to Apr 25Sow outdoors: Apr 11 to Apr 25Plant for fall: Aug 3 to Aug 24
Start indoors: Mar 14 to Mar 28Transplant outside: Apr 25 to May 9Plant for fall: Jul 6 to Jul 27
Start indoors: Mar 14 to Mar 28Transplant outside: Apr 18 to May 2Plant for fall: Jul 6 to Jul 27
Start indoors: Mar 14 to Mar 28Transplant outside: Apr 25 to May 9Plant for fall: Jul 6 to Jul 27
Start indoors: Mar 28 to Apr 11Transplant outside: May 30 to Jun 13Sow outdoors: May 30 to Jun 13
Start indoors: Mar 28 to Apr 11Transplant outside: May 16 to May 30
Sow outdoors: Mar 28 to Apr 18Plant for fall: Jul 20 to Aug 10
Sow outdoors: Mar 28 to Apr 18Plant for fall: Aug 17 to Sep 7
Sow outdoors: Apr 4 to May 16Plant for fall: Aug 31 to Sep 21
Start indoors: Apr 11 to Apr 18Transplant outside: May 23 to May 30Sow outdoors: May 16 to May 30Plant for fall: Jul 27 to Aug 10
Start indoors: Apr 11 to Apr 18Sow outdoors: May 16 to May 30Plant for fall: Aug 3 to Aug 17
Start indoors: Apr 11 to Apr 18Sow outdoors: May 16 to May 30
Start indoors: Apr 11 to Apr 18Transplant outside: May 23 to Jun 6
Sow outdoors: Apr 18 to May 16Plant for fall: Jul 20 to Aug 3
Sow outdoors: Apr 18 to May 16Plant for fall: Aug 3 to Aug 17
Sow outdoors: Apr 18 to May 9
Sow outdoors: Apr 25 to May 23Plant for fall: Aug 3 to Aug 17
Sow outdoors: Apr 25 to May 16Plant for fall: Aug 17 to Sep 7
Sow outdoors: May 16 to Jun 6Plant for fall: Jul 27 to Aug 10
Sow outdoors: May 16 to May 30
Transplant outside: May 23 to Jun 13
Plant for fall: Sep 28 to Nov 2
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Millerton, PA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 14 – Feb 28 | Apr 11 – Apr 25 | — | — |
| Peppers | Feb 28 – Mar 14 | May 23 – Jun 6 | — | — |
| Eggplant | Feb 28 – Mar 14 | May 23 – Jun 6 | — | — |
| Tomatoes | Mar 14 – Mar 28 | May 16 – May 30 | — | — |
| Lettuce | Mar 14 – Mar 28 | Apr 18 – May 2 | Apr 11 – May 16 | Aug 17 – Sep 14 |
| Kale | Mar 14 – Mar 28 | Apr 11 – Apr 25 | Apr 11 – Apr 25 | Aug 3 – Aug 24 |
| Broccoli | Mar 14 – Mar 28 | Apr 25 – May 9 | — | Jul 6 – Jul 27 |
| Cabbage | Mar 14 – Mar 28 | Apr 18 – May 2 | — | Jul 6 – Jul 27 |
| Cauliflower | Mar 14 – Mar 28 | Apr 25 – May 9 | — | Jul 6 – Jul 27 |
| Okra | Mar 28 – Apr 11 | May 30 – Jun 13 | May 30 – Jun 13 | — |
| Basil | Mar 28 – Apr 11 | May 16 – May 30 | — | — |
| Peas | — | — | Mar 28 – Apr 18 | Jul 20 – Aug 10 |
| Spinach | — | — | Mar 28 – Apr 18 | Aug 17 – Sep 7 |
| Radishes | — | — | Apr 4 – May 16 | Aug 31 – Sep 21 |
| Cucumbers | Apr 11 – Apr 18 | May 23 – May 30 | May 16 – May 30 | Jul 27 – Aug 10 |
| Zucchini & Summer Squash | Apr 11 – Apr 18 | — | May 16 – May 30 | Aug 3 – Aug 17 |
| Winter Squash & Pumpkins | Apr 11 – Apr 18 | — | May 16 – May 30 | — |
| Melons & Watermelon | Apr 11 – Apr 18 | May 23 – Jun 6 | — | — |
| Carrots | — | — | Apr 18 – May 16 | Jul 20 – Aug 3 |
| Beets | — | — | Apr 18 – May 16 | Aug 3 – Aug 17 |
| Potatoes | — | — | Apr 18 – May 9 | — |
| Swiss Chard | — | — | Apr 25 – May 23 | Aug 3 – Aug 17 |
| Cilantro | — | — | Apr 25 – May 16 | Aug 17 – Sep 7 |
| Green Beans | — | — | May 16 – Jun 6 | Jul 27 – Aug 10 |
| Sweet Corn | — | — | May 16 – May 30 | — |
| Sweet Potatoes | — | May 23 – Jun 13 | — | — |
| Garlic | — | — | — | Sep 28 – Nov 2 |
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 Cowanesque Dam, PA weather station, 15 km away (elevation 1,152 ft (351 m)).
Frost dates near Millerton
- Lawrenceville May 9 · Oct 12
- Tioga May 6 · Oct 10
- Gillett May 6 · Oct 11
- Mansfield May 6 · Oct 10
- Columbia Cross Roads May 16 · Oct 2
- Mainesburg May 6 · Oct 10
- Sylvania May 16 · Oct 2
- Nelson May 9 · Oct 12
- Covington May 6 · Oct 10
- Troy May 16 · Oct 2
Frequently asked questions
When is the last frost in Millerton, PA?
The median last spring frost in Millerton, PA is May 9. There is still about a 10% chance of frost after May 25, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Millerton, PA?
The median first fall frost is October 12, with about a 10% chance of frost before September 29.
How long is the growing season in Millerton, PA?
About 156 days between the median last spring frost and first fall frost.
What planting zone is Millerton, PA?
Millerton, PA is in USDA hardiness zone 6a.