Mount Orab, OH frost dates
Last spring frostApr 11median date
First fall frostOct 30median date
Growing season202 daysfrost-free
Hardiness zone6bZone 6b
How Mount Orab compares
- In 8 years out of 10, the last spring frost in Mount Orab falls between March 30 and May 2, a 33-day window. The first fall frost falls between October 16 and November 10.
- The median last frost is 13 days earlier than the Ohio median of Apr 24.
- Its 202-day growing season is longer than 97% of the 1,063 Ohio places with a regular frost season (state median 180 days).
- The last frost is 11 days earlier than the zone 6b median of Apr 22. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 6b chart.
- The weather station records an average of 89 nights a year at or below 32°F.
- Compared with Cincinnati, OH, 50 km away, the last frost here is 6 days earlier than there and the growing season is 10 days longer.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 30 |
| 50% (median) | April 11 |
| 10% (safe for tender plants) | May 2 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 16 |
| 50% (median) | October 30 |
| 90% (late) | November 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 Mount Orab, OH
Mount Orab, OH frost dates — last frost Apr 11, first frost Oct 30, zone 6b. whenisthelastfrost.com
Crop
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Start indoors: Jan 17 to Jan 31Transplant outside: Mar 14 to Mar 28
Start indoors: Jan 31 to Feb 14Transplant outside: Apr 25 to May 9
Start indoors: Jan 31 to Feb 14Transplant outside: Apr 25 to May 9
Start indoors: Feb 14 to Feb 28Transplant outside: Apr 18 to May 2
Start indoors: Feb 14 to Feb 28Transplant outside: Mar 21 to Apr 4Sow outdoors: Mar 14 to Apr 18Plant for fall: Sep 4 to Oct 2
Start indoors: Feb 14 to Feb 28Transplant outside: Mar 14 to Mar 28Sow outdoors: Mar 14 to Mar 28Plant for fall: Aug 21 to Sep 11
Start indoors: Feb 14 to Feb 28Transplant outside: Mar 28 to Apr 11Plant for fall: Jul 24 to Aug 14
Start indoors: Feb 14 to Feb 28Transplant outside: Mar 21 to Apr 4Plant for fall: Jul 24 to Aug 14
Start indoors: Feb 14 to Feb 28Transplant outside: Mar 28 to Apr 11Plant for fall: Jul 24 to Aug 14
Start indoors: Feb 28 to Mar 14Transplant outside: May 2 to May 16Sow outdoors: May 2 to May 16
Start indoors: Feb 28 to Mar 14Transplant outside: Apr 18 to May 2
Sow outdoors: Feb 28 to Mar 21Plant for fall: Aug 7 to Aug 28
Sow outdoors: Feb 28 to Mar 21Plant for fall: Sep 4 to Sep 25
Sow outdoors: Mar 7 to Apr 18Plant for fall: Sep 18 to Oct 9
Start indoors: Mar 14 to Mar 21Transplant outside: Apr 25 to May 2Sow outdoors: Apr 18 to May 2Plant for fall: Aug 14 to Aug 28
Start indoors: Mar 14 to Mar 21Sow outdoors: Apr 18 to May 2Plant for fall: Aug 21 to Sep 4
Start indoors: Mar 14 to Mar 21Sow outdoors: Apr 18 to May 2
Start indoors: Mar 14 to Mar 21Transplant outside: Apr 25 to May 9
Sow outdoors: Mar 21 to Apr 18Plant for fall: Aug 7 to Aug 21
Sow outdoors: Mar 21 to Apr 18Plant for fall: Aug 21 to Sep 4
Sow outdoors: Mar 21 to Apr 11
Sow outdoors: Mar 28 to Apr 25Plant for fall: Aug 21 to Sep 4
Sow outdoors: Mar 28 to Apr 18Plant for fall: Sep 4 to Sep 25
Sow outdoors: Apr 18 to May 9Plant for fall: Aug 14 to Aug 28
Sow outdoors: Apr 18 to May 2
Transplant outside: Apr 25 to May 16
Plant for fall: Oct 16 to Nov 20
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Mount Orab, OH
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 17 – Jan 31 | Mar 14 – Mar 28 | — | — |
| Peppers | Jan 31 – Feb 14 | Apr 25 – May 9 | — | — |
| Eggplant | Jan 31 – Feb 14 | Apr 25 – May 9 | — | — |
| Tomatoes | Feb 14 – Feb 28 | Apr 18 – May 2 | — | — |
| Lettuce | Feb 14 – Feb 28 | Mar 21 – Apr 4 | Mar 14 – Apr 18 | Sep 4 – Oct 2 |
| Kale | Feb 14 – Feb 28 | Mar 14 – Mar 28 | Mar 14 – Mar 28 | Aug 21 – Sep 11 |
| Broccoli | Feb 14 – Feb 28 | Mar 28 – Apr 11 | — | Jul 24 – Aug 14 |
| Cabbage | Feb 14 – Feb 28 | Mar 21 – Apr 4 | — | Jul 24 – Aug 14 |
| Cauliflower | Feb 14 – Feb 28 | Mar 28 – Apr 11 | — | Jul 24 – Aug 14 |
| Okra | Feb 28 – Mar 14 | May 2 – May 16 | May 2 – May 16 | — |
| Basil | Feb 28 – Mar 14 | Apr 18 – May 2 | — | — |
| Peas | — | — | Feb 28 – Mar 21 | Aug 7 – Aug 28 |
| Spinach | — | — | Feb 28 – Mar 21 | Sep 4 – Sep 25 |
| Radishes | — | — | Mar 7 – Apr 18 | Sep 18 – Oct 9 |
| Cucumbers | Mar 14 – Mar 21 | Apr 25 – May 2 | Apr 18 – May 2 | Aug 14 – Aug 28 |
| Zucchini & Summer Squash | Mar 14 – Mar 21 | — | Apr 18 – May 2 | Aug 21 – Sep 4 |
| Winter Squash & Pumpkins | Mar 14 – Mar 21 | — | Apr 18 – May 2 | — |
| Melons & Watermelon | Mar 14 – Mar 21 | Apr 25 – May 9 | — | — |
| Carrots | — | — | Mar 21 – Apr 18 | Aug 7 – Aug 21 |
| Beets | — | — | Mar 21 – Apr 18 | Aug 21 – Sep 4 |
| Potatoes | — | — | Mar 21 – Apr 11 | — |
| Swiss Chard | — | — | Mar 28 – Apr 25 | Aug 21 – Sep 4 |
| Cilantro | — | — | Mar 28 – Apr 18 | Sep 4 – Sep 25 |
| Green Beans | — | — | Apr 18 – May 9 | Aug 14 – Aug 28 |
| Sweet Corn | — | — | Apr 18 – May 2 | — |
| Sweet Potatoes | — | Apr 25 – May 16 | — | — |
| Garlic | — | — | — | Oct 16 – Nov 20 |
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 Augusta, KY weather station, 31 km away (elevation 509 ft (155 m)).
Frost dates near Mount Orab
- Williamsburg Apr 23 · Oct 18
- Hamersville Apr 11 · Oct 30
- Sardinia Apr 29 · Oct 11
- Fayetteville Apr 19 · Oct 22
- Bethel Apr 16 · Oct 31
- Mowrystown Apr 24 · Oct 20
- Batavia Apr 23 · Oct 18
- Owensville Apr 23 · Oct 18
- Feesburg Apr 11 · Oct 30
- Newtonsville Apr 23 · Oct 18
Frequently asked questions
When is the last frost in Mount Orab, OH?
The median last spring frost in Mount Orab, OH is April 11. There is still about a 10% chance of frost after May 2, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Mount Orab, OH?
The median first fall frost is October 30, with about a 10% chance of frost before October 16.
How long is the growing season in Mount Orab, OH?
About 202 days between the median last spring frost and first fall frost.
What planting zone is Mount Orab, OH?
Mount Orab, OH is in USDA hardiness zone 6b.