Ludlow, PA frost dates
Last spring frostMay 24median date
First fall frostSep 28median date
Growing season127 daysfrost-free
Hardiness zone5bZone 5b
How Ludlow compares
- In 8 years out of 10, the last spring frost in Ludlow falls between May 6 and June 7, a 32-day window. The first fall frost falls between September 11 and October 10.
- The median last frost is 27 days later than the Pennsylvania median of Apr 27.
- Its 127-day growing season is among the shortest of the 1,787 Pennsylvania places with a regular frost season.
- The last frost is 23 days later than the zone 5b median of May 1. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 5b chart.
- The weather station records an average of 184 nights a year at or below 32°F.
- Compared with Erie, PA, 104 km away, the last frost here is 28 days later than there and the growing season is 65 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | May 6 |
| 50% (median) | May 24 |
| 10% (safe for tender plants) | June 7 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 11 |
| 50% (median) | September 28 |
| 90% (late) | October 10 |
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 Ludlow, PA
Ludlow, PA frost dates — last frost May 24, first frost Sep 28, zone 5b. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Mar 1 to Mar 15Transplant outside: Apr 26 to May 10
Start indoors: Mar 15 to Mar 29Transplant outside: Jun 7 to Jun 21
Start indoors: Mar 15 to Mar 29Transplant outside: Jun 7 to Jun 21
Start indoors: Mar 29 to Apr 12Transplant outside: May 31 to Jun 14
Start indoors: Mar 29 to Apr 12Transplant outside: May 3 to May 17Sow outdoors: Apr 26 to May 31Plant for fall: Aug 3 to Aug 31
Start indoors: Mar 29 to Apr 12Transplant outside: Apr 26 to May 10Sow outdoors: Apr 26 to May 10Plant for fall: Jul 20 to Aug 10
Start indoors: Mar 29 to Apr 12Transplant outside: May 10 to May 24Plant for fall: Jun 22 to Jul 13
Start indoors: Mar 29 to Apr 12Transplant outside: May 3 to May 17Plant for fall: Jun 22 to Jul 13
Start indoors: Mar 29 to Apr 12Transplant outside: May 10 to May 24Plant for fall: Jun 22 to Jul 13
Start indoors: Apr 12 to Apr 26Transplant outside: Jun 14 to Jun 28Sow outdoors: Jun 14 to Jun 28
Start indoors: Apr 12 to Apr 26Transplant outside: May 31 to Jun 14
Sow outdoors: Apr 12 to May 3Plant for fall: Jul 6 to Jul 27
Sow outdoors: Apr 12 to May 3Plant for fall: Aug 3 to Aug 24
Sow outdoors: Apr 19 to May 31Plant for fall: Aug 17 to Sep 7
Start indoors: Apr 26 to May 3Transplant outside: Jun 7 to Jun 14Sow outdoors: May 31 to Jun 14Plant for fall: Jul 13 to Jul 27
Start indoors: Apr 26 to May 3Sow outdoors: May 31 to Jun 14Plant for fall: Jul 20 to Aug 3
Start indoors: Apr 26 to May 3Sow outdoors: May 31 to Jun 14
Start indoors: Apr 26 to May 3Transplant outside: Jun 7 to Jun 21
Sow outdoors: May 3 to May 31Plant for fall: Jul 6 to Jul 20
Sow outdoors: May 3 to May 31Plant for fall: Jul 20 to Aug 3
Sow outdoors: May 3 to May 24
Sow outdoors: May 10 to Jun 7Plant for fall: Jul 20 to Aug 3
Sow outdoors: May 10 to May 31Plant for fall: Aug 3 to Aug 24
Sow outdoors: May 31 to Jun 21Plant for fall: Jul 13 to Jul 27
Sow outdoors: May 31 to Jun 14
Transplant outside: Jun 7 to Jun 28
Plant for fall: Sep 14 to Oct 19
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Ludlow, PA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Mar 1 – Mar 15 | Apr 26 – May 10 | — | — |
| Peppers | Mar 15 – Mar 29 | Jun 7 – Jun 21 | — | — |
| Eggplant | Mar 15 – Mar 29 | Jun 7 – Jun 21 | — | — |
| Tomatoes | Mar 29 – Apr 12 | May 31 – Jun 14 | — | — |
| Lettuce | Mar 29 – Apr 12 | May 3 – May 17 | Apr 26 – May 31 | Aug 3 – Aug 31 |
| Kale | Mar 29 – Apr 12 | Apr 26 – May 10 | Apr 26 – May 10 | Jul 20 – Aug 10 |
| Broccoli | Mar 29 – Apr 12 | May 10 – May 24 | — | Jun 22 – Jul 13 |
| Cabbage | Mar 29 – Apr 12 | May 3 – May 17 | — | Jun 22 – Jul 13 |
| Cauliflower | Mar 29 – Apr 12 | May 10 – May 24 | — | Jun 22 – Jul 13 |
| Okra | Apr 12 – Apr 26 | Jun 14 – Jun 28 | Jun 14 – Jun 28 | — |
| Basil | Apr 12 – Apr 26 | May 31 – Jun 14 | — | — |
| Peas | — | — | Apr 12 – May 3 | Jul 6 – Jul 27 |
| Spinach | — | — | Apr 12 – May 3 | Aug 3 – Aug 24 |
| Radishes | — | — | Apr 19 – May 31 | Aug 17 – Sep 7 |
| Cucumbers | Apr 26 – May 3 | Jun 7 – Jun 14 | May 31 – Jun 14 | Jul 13 – Jul 27 |
| Zucchini & Summer Squash | Apr 26 – May 3 | — | May 31 – Jun 14 | Jul 20 – Aug 3 |
| Winter Squash & Pumpkins | Apr 26 – May 3 | — | May 31 – Jun 14 | — |
| Melons & Watermelon | Apr 26 – May 3 | Jun 7 – Jun 21 | — | — |
| Carrots | — | — | May 3 – May 31 | Jul 6 – Jul 20 |
| Beets | — | — | May 3 – May 31 | Jul 20 – Aug 3 |
| Potatoes | — | — | May 3 – May 24 | — |
| Swiss Chard | — | — | May 10 – Jun 7 | Jul 20 – Aug 3 |
| Cilantro | — | — | May 10 – May 31 | Aug 3 – Aug 24 |
| Green Beans | — | — | May 31 – Jun 21 | Jul 13 – Jul 27 |
| Sweet Corn | — | — | May 31 – Jun 14 | — |
| Sweet Potatoes | — | Jun 7 – Jun 28 | — | — |
| Garlic | — | — | — | Sep 14 – Oct 19 |
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 Kane 1nne, PA weather station, 13 km away (elevation 1,749 ft (533 m)).
Frost dates near Ludlow
- Sheffield May 4 · Oct 21
- Tiona May 4 · Oct 21
- Kane May 24 · Sep 28
- James City May 24 · Sep 28
- Clarendon May 4 · Oct 21
- Warren May 4 · Oct 21
- Lewis Run May 18 · Oct 1
- Mount Jewett May 18 · Oct 1
- Wilcox May 14 · Oct 6
- Irvine May 4 · Oct 21
Frequently asked questions
When is the last frost in Ludlow, PA?
The median last spring frost in Ludlow, PA is May 24. There is still about a 10% chance of frost after June 7, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Ludlow, PA?
The median first fall frost is September 28, with about a 10% chance of frost before September 11.
How long is the growing season in Ludlow, PA?
About 127 days between the median last spring frost and first fall frost.
What planting zone is Ludlow, PA?
Ludlow, PA is in USDA hardiness zone 5b.