Colerain, OH frost dates
Last spring frostApr 18median date
First fall frostNov 1median date
Growing season197 daysfrost-free
Hardiness zone7aZone 7a
How Colerain compares
- In 8 years out of 10, the last spring frost in Colerain falls between April 4 and May 6, a 32-day window. The first fall frost falls between October 18 and November 13.
- The median last frost is 6 days earlier than the Ohio median of Apr 24.
- Its 197-day growing season is longer than 94% of the 1,063 Ohio places with a regular frost season (state median 180 days).
- The last frost is typical for zone 7a, where the median is Apr 16.
- The weather station records an average of 107 nights a year at or below 32°F.
- Compared with Pittsburgh, PA, 77 km away, the last frost here is 6 days earlier than there and the growing season is 11 days longer.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 4 |
| 50% (median) | April 18 |
| 10% (safe for tender plants) | May 6 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 18 |
| 50% (median) | November 1 |
| 90% (late) | November 13 |
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 Colerain, OH
Colerain, OH frost dates — last frost Apr 18, first frost Nov 1, zone 7a. whenisthelastfrost.com
Crop
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Start indoors: Jan 24 to Feb 7Transplant outside: Mar 21 to Apr 4
Start indoors: Feb 7 to Feb 21Transplant outside: May 2 to May 16
Start indoors: Feb 7 to Feb 21Transplant outside: May 2 to May 16
Start indoors: Feb 21 to Mar 7Transplant outside: Apr 25 to May 9
Start indoors: Feb 21 to Mar 7Transplant outside: Mar 28 to Apr 11Sow outdoors: Mar 21 to Apr 25Plant for fall: Sep 6 to Oct 4
Start indoors: Feb 21 to Mar 7Transplant outside: Mar 21 to Apr 4Sow outdoors: Mar 21 to Apr 4Plant for fall: Aug 23 to Sep 13
Start indoors: Feb 21 to Mar 7Transplant outside: Apr 4 to Apr 18Plant for fall: Jul 26 to Aug 16
Start indoors: Feb 21 to Mar 7Transplant outside: Mar 28 to Apr 11Plant for fall: Jul 26 to Aug 16
Start indoors: Feb 21 to Mar 7Transplant outside: Apr 4 to Apr 18Plant for fall: Jul 26 to Aug 16
Start indoors: Mar 7 to Mar 21Transplant outside: May 9 to May 23Sow outdoors: May 9 to May 23
Start indoors: Mar 7 to Mar 21Transplant outside: Apr 25 to May 9
Sow outdoors: Mar 7 to Mar 28Plant for fall: Aug 9 to Aug 30
Sow outdoors: Mar 7 to Mar 28Plant for fall: Sep 6 to Sep 27
Sow outdoors: Mar 14 to Apr 25Plant for fall: Sep 20 to Oct 11
Start indoors: Mar 21 to Mar 28Transplant outside: May 2 to May 9Sow outdoors: Apr 25 to May 9Plant for fall: Aug 16 to Aug 30
Start indoors: Mar 21 to Mar 28Sow outdoors: Apr 25 to May 9Plant for fall: Aug 23 to Sep 6
Start indoors: Mar 21 to Mar 28Sow outdoors: Apr 25 to May 9
Start indoors: Mar 21 to Mar 28Transplant outside: May 2 to May 16
Sow outdoors: Mar 28 to Apr 25Plant for fall: Aug 9 to Aug 23
Sow outdoors: Mar 28 to Apr 25Plant for fall: Aug 23 to Sep 6
Sow outdoors: Mar 28 to Apr 18
Sow outdoors: Apr 4 to May 2Plant for fall: Aug 23 to Sep 6
Sow outdoors: Apr 4 to Apr 25Plant for fall: Sep 6 to Sep 27
Sow outdoors: Apr 25 to May 16Plant for fall: Aug 16 to Aug 30
Sow outdoors: Apr 25 to May 9
Transplant outside: May 2 to May 23
Plant for fall: Oct 18 to Nov 22
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Colerain, OH
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 24 – Feb 7 | Mar 21 – Apr 4 | — | — |
| Peppers | Feb 7 – Feb 21 | May 2 – May 16 | — | — |
| Eggplant | Feb 7 – Feb 21 | May 2 – May 16 | — | — |
| Tomatoes | Feb 21 – Mar 7 | Apr 25 – May 9 | — | — |
| Lettuce | Feb 21 – Mar 7 | Mar 28 – Apr 11 | Mar 21 – Apr 25 | Sep 6 – Oct 4 |
| Kale | Feb 21 – Mar 7 | Mar 21 – Apr 4 | Mar 21 – Apr 4 | Aug 23 – Sep 13 |
| Broccoli | Feb 21 – Mar 7 | Apr 4 – Apr 18 | — | Jul 26 – Aug 16 |
| Cabbage | Feb 21 – Mar 7 | Mar 28 – Apr 11 | — | Jul 26 – Aug 16 |
| Cauliflower | Feb 21 – Mar 7 | Apr 4 – Apr 18 | — | Jul 26 – Aug 16 |
| Okra | Mar 7 – Mar 21 | May 9 – May 23 | May 9 – May 23 | — |
| Basil | Mar 7 – Mar 21 | Apr 25 – May 9 | — | — |
| Peas | — | — | Mar 7 – Mar 28 | Aug 9 – Aug 30 |
| Spinach | — | — | Mar 7 – Mar 28 | Sep 6 – Sep 27 |
| Radishes | — | — | Mar 14 – Apr 25 | Sep 20 – Oct 11 |
| Cucumbers | Mar 21 – Mar 28 | May 2 – May 9 | Apr 25 – May 9 | Aug 16 – Aug 30 |
| Zucchini & Summer Squash | Mar 21 – Mar 28 | — | Apr 25 – May 9 | Aug 23 – Sep 6 |
| Winter Squash & Pumpkins | Mar 21 – Mar 28 | — | Apr 25 – May 9 | — |
| Melons & Watermelon | Mar 21 – Mar 28 | May 2 – May 16 | — | — |
| Carrots | — | — | Mar 28 – Apr 25 | Aug 9 – Aug 23 |
| Beets | — | — | Mar 28 – Apr 25 | Aug 23 – Sep 6 |
| Potatoes | — | — | Mar 28 – Apr 18 | — |
| Swiss Chard | — | — | Apr 4 – May 2 | Aug 23 – Sep 6 |
| Cilantro | — | — | Apr 4 – Apr 25 | Sep 6 – Sep 27 |
| Green Beans | — | — | Apr 25 – May 16 | Aug 16 – Aug 30 |
| Sweet Corn | — | — | Apr 25 – May 9 | — |
| Sweet Potatoes | — | May 2 – May 23 | — | — |
| 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 Pike Island(Lock & Dam), WV weather station, 10 km away (elevation 640 ft (195 m)).
Frost dates near Colerain
- Barton Apr 20 · Oct 29
- Maynard Apr 20 · Oct 29
- Lansing Apr 20 · Oct 29
- Blaine Apr 20 · Oct 29
- Mount Pleasant Apr 18 · Nov 1
- Bridgeport Apr 20 · Oct 29
- Martins Ferry Apr 20 · Oct 29
- Harrisville Apr 21 · Oct 25
- Yorkville Apr 18 · Nov 1
- Fairpoint Apr 21 · Oct 25
Frequently asked questions
When is the last frost in Colerain, OH?
The median last spring frost in Colerain, OH is April 18. There is still about a 10% chance of frost after May 6, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Colerain, OH?
The median first fall frost is November 1, with about a 10% chance of frost before October 18.
How long is the growing season in Colerain, OH?
About 197 days between the median last spring frost and first fall frost.
What planting zone is Colerain, OH?
Colerain, OH is in USDA hardiness zone 7a.