Frost dates for 44503 — Youngstown, OH
Last spring frostMay 1median date
First fall frostOct 17median date
Growing season169 daysfrost-free
Hardiness zone6aZone 6a
How Youngstown compares
- In 8 years out of 10, the last spring frost in Youngstown falls between April 16 and May 20, a 34-day window. The first fall frost falls between October 1 and November 1.
- The median last frost is 7 days later than the Ohio median of Apr 24.
- Its 169-day growing season is longer than 14% of the 1,063 Ohio places with a regular frost season (state median 180 days).
- The last frost is typical for zone 6a, where the median is Apr 29.
- The weather station records an average of 127 nights a year at or below 32°F.
- Compared with Canton, OH, 69 km away, the last frost here is 7 days later than there and the growing season is 16 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 16 |
| 50% (median) | May 1 |
| 10% (safe for tender plants) | May 20 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 1 |
| 50% (median) | October 17 |
| 90% (late) | November 1 |
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 Youngstown, OH
Frost dates for 44503 — Youngstown, OH — last frost May 1, first frost Oct 17, zone 6a. whenisthelastfrost.com
Crop
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Start indoors: Feb 6 to Feb 20Transplant outside: Apr 3 to Apr 17
Start indoors: Feb 20 to Mar 6Transplant outside: May 15 to May 29
Start indoors: Feb 20 to Mar 6Transplant outside: May 15 to May 29
Start indoors: Mar 6 to Mar 20Transplant outside: May 8 to May 22
Start indoors: Mar 6 to Mar 20Transplant outside: Apr 10 to Apr 24Sow outdoors: Apr 3 to May 8Plant for fall: Aug 22 to Sep 19
Start indoors: Mar 6 to Mar 20Transplant outside: Apr 3 to Apr 17Sow outdoors: Apr 3 to Apr 17Plant for fall: Aug 8 to Aug 29
Start indoors: Mar 6 to Mar 20Transplant outside: Apr 17 to May 1Plant for fall: Jul 11 to Aug 1
Start indoors: Mar 6 to Mar 20Transplant outside: Apr 10 to Apr 24Plant for fall: Jul 11 to Aug 1
Start indoors: Mar 6 to Mar 20Transplant outside: Apr 17 to May 1Plant for fall: Jul 11 to Aug 1
Start indoors: Mar 20 to Apr 3Transplant outside: May 22 to Jun 5Sow outdoors: May 22 to Jun 5
Start indoors: Mar 20 to Apr 3Transplant outside: May 8 to May 22
Sow outdoors: Mar 20 to Apr 10Plant for fall: Jul 25 to Aug 15
Sow outdoors: Mar 20 to Apr 10Plant for fall: Aug 22 to Sep 12
Sow outdoors: Mar 27 to May 8Plant for fall: Sep 5 to Sep 26
Start indoors: Apr 3 to Apr 10Transplant outside: May 15 to May 22Sow outdoors: May 8 to May 22Plant for fall: Aug 1 to Aug 15
Start indoors: Apr 3 to Apr 10Sow outdoors: May 8 to May 22Plant for fall: Aug 8 to Aug 22
Start indoors: Apr 3 to Apr 10Sow outdoors: May 8 to May 22
Start indoors: Apr 3 to Apr 10Transplant outside: May 15 to May 29
Sow outdoors: Apr 10 to May 8Plant for fall: Jul 25 to Aug 8
Sow outdoors: Apr 10 to May 8Plant for fall: Aug 8 to Aug 22
Sow outdoors: Apr 10 to May 1
Sow outdoors: Apr 17 to May 15Plant for fall: Aug 8 to Aug 22
Sow outdoors: Apr 17 to May 8Plant for fall: Aug 22 to Sep 12
Sow outdoors: May 8 to May 29Plant for fall: Aug 1 to Aug 15
Sow outdoors: May 8 to May 22
Transplant outside: May 15 to Jun 5
Plant for fall: Oct 3 to Nov 7
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Youngstown, OH
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 6 – Feb 20 | Apr 3 – Apr 17 | — | — |
| Peppers | Feb 20 – Mar 6 | May 15 – May 29 | — | — |
| Eggplant | Feb 20 – Mar 6 | May 15 – May 29 | — | — |
| Tomatoes | Mar 6 – Mar 20 | May 8 – May 22 | — | — |
| Lettuce | Mar 6 – Mar 20 | Apr 10 – Apr 24 | Apr 3 – May 8 | Aug 22 – Sep 19 |
| Kale | Mar 6 – Mar 20 | Apr 3 – Apr 17 | Apr 3 – Apr 17 | Aug 8 – Aug 29 |
| Broccoli | Mar 6 – Mar 20 | Apr 17 – May 1 | — | Jul 11 – Aug 1 |
| Cabbage | Mar 6 – Mar 20 | Apr 10 – Apr 24 | — | Jul 11 – Aug 1 |
| Cauliflower | Mar 6 – Mar 20 | Apr 17 – May 1 | — | Jul 11 – Aug 1 |
| Okra | Mar 20 – Apr 3 | May 22 – Jun 5 | May 22 – Jun 5 | — |
| Basil | Mar 20 – Apr 3 | May 8 – May 22 | — | — |
| Peas | — | — | Mar 20 – Apr 10 | Jul 25 – Aug 15 |
| Spinach | — | — | Mar 20 – Apr 10 | Aug 22 – Sep 12 |
| Radishes | — | — | Mar 27 – May 8 | Sep 5 – Sep 26 |
| Cucumbers | Apr 3 – Apr 10 | May 15 – May 22 | May 8 – May 22 | Aug 1 – Aug 15 |
| Zucchini & Summer Squash | Apr 3 – Apr 10 | — | May 8 – May 22 | Aug 8 – Aug 22 |
| Winter Squash & Pumpkins | Apr 3 – Apr 10 | — | May 8 – May 22 | — |
| Melons & Watermelon | Apr 3 – Apr 10 | May 15 – May 29 | — | — |
| Carrots | — | — | Apr 10 – May 8 | Jul 25 – Aug 8 |
| Beets | — | — | Apr 10 – May 8 | Aug 8 – Aug 22 |
| Potatoes | — | — | Apr 10 – May 1 | — |
| Swiss Chard | — | — | Apr 17 – May 15 | Aug 8 – Aug 22 |
| Cilantro | — | — | Apr 17 – May 8 | Aug 22 – Sep 12 |
| Green Beans | — | — | May 8 – May 29 | Aug 1 – Aug 15 |
| Sweet Corn | — | — | May 8 – May 22 | — |
| Sweet Potatoes | — | May 15 – Jun 5 | — | — |
| Garlic | — | — | — | Oct 3 – Nov 7 |
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 Youngstown Rgnl Ap, OH weather station, 17 km away (elevation 1,181 ft (360 m)).
ZIP codes in Youngstown: 44501 44502 44503 44504 44505 44506 44507 44509 44510 44511 44512 44513 44514 44515 44555
Frost dates near Youngstown
- Campbell Apr 30 · Oct 23
- Struthers Apr 30 · Oct 23
- Girard May 1 · Oct 17
- Hubbard May 1 · Oct 17
- Mc Donald May 8 · Oct 12
- Mineral Ridge May 8 · Oct 12
- Lowellville Apr 30 · Oct 23
- Canfield May 8 · Oct 12
Frequently asked questions
When is the last frost in Youngstown, OH?
The median last spring frost in Youngstown, OH is May 1. There is still about a 10% chance of frost after May 20, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Youngstown, OH?
The median first fall frost is October 17, with about a 10% chance of frost before October 1.
How long is the growing season in Youngstown, OH?
About 169 days between the median last spring frost and first fall frost.
What planting zone is Youngstown, OH?
Youngstown, OH is in USDA hardiness zone 6a.