Grafton, OH frost dates
Last spring frostApr 22median date
First fall frostNov 1median date
Growing season193 daysfrost-free
Hardiness zone6bZone 6b
How Grafton compares
- In 8 years out of 10, the last spring frost in Grafton falls between April 6 and May 7, a 31-day window. The first fall frost falls between October 17 and November 12.
- The median last frost is 2 days earlier than the Ohio median of Apr 24.
- Its 193-day growing season is longer than 89% of the 1,063 Ohio places with a regular frost season (state median 180 days).
- The last frost is typical for zone 6b, where the median is Apr 22.
- The weather station records an average of 115 nights a year at or below 32°F.
- Grafton shares its weather station with Elyria, OH, 12 km away, so the two have the same frost dates.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 6 |
| 50% (median) | April 22 |
| 10% (safe for tender plants) | May 7 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 17 |
| 50% (median) | November 1 |
| 90% (late) | November 12 |
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 Grafton, OH
Grafton, OH frost dates — last frost Apr 22, first frost Nov 1, zone 6b. whenisthelastfrost.com
Crop
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Start indoors: Jan 28 to Feb 11Transplant outside: Mar 25 to Apr 8
Start indoors: Feb 11 to Feb 25Transplant outside: May 6 to May 20
Start indoors: Feb 11 to Feb 25Transplant outside: May 6 to May 20
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 29 to May 13
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 1 to Apr 15Sow outdoors: Mar 25 to Apr 29Plant for fall: Sep 6 to Oct 4
Start indoors: Feb 25 to Mar 11Transplant outside: Mar 25 to Apr 8Sow outdoors: Mar 25 to Apr 8Plant for fall: Aug 23 to Sep 13
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 8 to Apr 22Plant for fall: Jul 26 to Aug 16
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 1 to Apr 15Plant for fall: Jul 26 to Aug 16
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 8 to Apr 22Plant for fall: Jul 26 to Aug 16
Start indoors: Mar 11 to Mar 25Transplant outside: May 13 to May 27Sow outdoors: May 13 to May 27
Start indoors: Mar 11 to Mar 25Transplant outside: Apr 29 to May 13
Sow outdoors: Mar 11 to Apr 1Plant for fall: Aug 9 to Aug 30
Sow outdoors: Mar 11 to Apr 1Plant for fall: Sep 6 to Sep 27
Sow outdoors: Mar 18 to Apr 29Plant for fall: Sep 20 to Oct 11
Start indoors: Mar 25 to Apr 1Transplant outside: May 6 to May 13Sow outdoors: Apr 29 to May 13Plant for fall: Aug 16 to Aug 30
Start indoors: Mar 25 to Apr 1Sow outdoors: Apr 29 to May 13Plant for fall: Aug 23 to Sep 6
Start indoors: Mar 25 to Apr 1Sow outdoors: Apr 29 to May 13
Start indoors: Mar 25 to Apr 1Transplant outside: May 6 to May 20
Sow outdoors: Apr 1 to Apr 29Plant for fall: Aug 9 to Aug 23
Sow outdoors: Apr 1 to Apr 29Plant for fall: Aug 23 to Sep 6
Sow outdoors: Apr 1 to Apr 22
Sow outdoors: Apr 8 to May 6Plant for fall: Aug 23 to Sep 6
Sow outdoors: Apr 8 to Apr 29Plant for fall: Sep 6 to Sep 27
Sow outdoors: Apr 29 to May 20Plant for fall: Aug 16 to Aug 30
Sow outdoors: Apr 29 to May 13
Transplant outside: May 6 to May 27
Plant for fall: Oct 18 to Nov 22
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Grafton, OH
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 28 – Feb 11 | Mar 25 – Apr 8 | — | — |
| Peppers | Feb 11 – Feb 25 | May 6 – May 20 | — | — |
| Eggplant | Feb 11 – Feb 25 | May 6 – May 20 | — | — |
| Tomatoes | Feb 25 – Mar 11 | Apr 29 – May 13 | — | — |
| Lettuce | Feb 25 – Mar 11 | Apr 1 – Apr 15 | Mar 25 – Apr 29 | Sep 6 – Oct 4 |
| Kale | Feb 25 – Mar 11 | Mar 25 – Apr 8 | Mar 25 – Apr 8 | Aug 23 – Sep 13 |
| Broccoli | Feb 25 – Mar 11 | Apr 8 – Apr 22 | — | Jul 26 – Aug 16 |
| Cabbage | Feb 25 – Mar 11 | Apr 1 – Apr 15 | — | Jul 26 – Aug 16 |
| Cauliflower | Feb 25 – Mar 11 | Apr 8 – Apr 22 | — | Jul 26 – Aug 16 |
| Okra | Mar 11 – Mar 25 | May 13 – May 27 | May 13 – May 27 | — |
| Basil | Mar 11 – Mar 25 | Apr 29 – May 13 | — | — |
| Peas | — | — | Mar 11 – Apr 1 | Aug 9 – Aug 30 |
| Spinach | — | — | Mar 11 – Apr 1 | Sep 6 – Sep 27 |
| Radishes | — | — | Mar 18 – Apr 29 | Sep 20 – Oct 11 |
| Cucumbers | Mar 25 – Apr 1 | May 6 – May 13 | Apr 29 – May 13 | Aug 16 – Aug 30 |
| Zucchini & Summer Squash | Mar 25 – Apr 1 | — | Apr 29 – May 13 | Aug 23 – Sep 6 |
| Winter Squash & Pumpkins | Mar 25 – Apr 1 | — | Apr 29 – May 13 | — |
| Melons & Watermelon | Mar 25 – Apr 1 | May 6 – May 20 | — | — |
| Carrots | — | — | Apr 1 – Apr 29 | Aug 9 – Aug 23 |
| Beets | — | — | Apr 1 – Apr 29 | Aug 23 – Sep 6 |
| Potatoes | — | — | Apr 1 – Apr 22 | — |
| Swiss Chard | — | — | Apr 8 – May 6 | Aug 23 – Sep 6 |
| Cilantro | — | — | Apr 8 – Apr 29 | Sep 6 – Sep 27 |
| Green Beans | — | — | Apr 29 – May 20 | Aug 16 – Aug 30 |
| Sweet Corn | — | — | Apr 29 – May 13 | — |
| Sweet Potatoes | — | May 6 – May 27 | — | — |
| Garlic | — | — | — | Oct 18 – Nov 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 Elyria 3 E, OH weather station, 11 km away (elevation 732 ft (223 m)).
Frost dates near Grafton
- Lagrange Apr 27 · Oct 22
- Columbia Station Apr 20 · Nov 3
- Valley City Apr 22 · Nov 1
- Elyria Apr 22 · Nov 1
- North Ridgeville Apr 22 · Nov 1
- Litchfield Apr 29 · Oct 19
- Olmsted Falls Apr 20 · Nov 3
- Oberlin Apr 27 · Oct 22
- Strongsville Apr 20 · Nov 3
- Berea Apr 20 · Nov 3
Frequently asked questions
When is the last frost in Grafton, OH?
The median last spring frost in Grafton, OH is April 22. There is still about a 10% chance of frost after May 7, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Grafton, OH?
The median first fall frost is November 1, with about a 10% chance of frost before October 17.
How long is the growing season in Grafton, OH?
About 193 days between the median last spring frost and first fall frost.
What planting zone is Grafton, OH?
Grafton, OH is in USDA hardiness zone 6b.