Plan your vegetable garden in Ohio
All the statistical weather information you need to prepare a bulletproof plan for your garden in Ohio
Temperature range in Ohio
Ohio has temperatures ranging from -7°F to 92°F, with approximately 175 frost free days.
Ohio has 156 days with average temperature range from 50°F to 90°F that are suitable for growing warm season vegetables and 152 days with average temperature range from 40°F to 80°F that are suitable for growing cool season vegetables
Ohio air temperature chart based on weather statistics from 2019 to 2023
| Total frost free days (after last frost and before first frost) | 175 |
| Total days suitable to grow warm season vegetables | 156 |
| Total days suitable to grow cool season vegetables | 152 |
| Day with highest recorded temperature in past 4 years | July 20: 92°F |
| Day with lowest recorded temperature in past 4 years | January 21: -7°F |
| First expected frost date | November 01 |
| Last expected frost date | May 10 |
Notable temperature facts for gardening in Ohio
Warm season vegetables you can grow in Ohio
Days suitable for growing warm season vegetables in Ohio
Warm season vegetables can be planted in Ohio after May 15 when air temperatures are consistently above 50°F (10°C) and soil temperature is above 50°F (10°C)
Good temperature range for warm season vegetables is between 50°F and 90°F. With warm season vegetables it is important to wait until all conditions are optimal, because sudden temperature drop can stun new vegetable growth, this way delaying overall harvest.
Warm season vegetables that can be planted directly into soil in Ohio
Warm season vegetables that need to be started indoors before transplanting outdoors in Ohio
Cool season vegetables you can grow in Ohio
Days suitable for growing cool season vegetables in Ohio
Cool season vegetables can be planted in Ohio after April 24 when average air temperature is consistently above 40°F (4°C) and soil temperature is above 45°F (7°C)
Good temperature range for cool season vegetables is between 40°F and 80°F. With cool season vegetables it is important to avoid high air temperatures because exposure to high temperatures is most likely to stun growth, cause bitterness and encourage premature bolting in some plants. Plan your cool vegetable planting so they are harvested before hot weather stretch, provide them with additional shading.
Cool season vegetables that can be planted directly into soil in Ohio
Table with days suitable to grow vegetables in Ohio
Tolerable temperature range for cool season vegetables: 40°F to 80°F
Tolerable temperature range for warm season vegetables: 50°F to 90°F
| Week | Average temperature | Possible min and max temperature | Suitable for cool season vegetables | Suitable for warm season vegetables | |
|---|---|---|---|---|---|
| 1 | January 01 - January 03 | 35°F to 47°F | 23°F to 60°F | ||
| 2 | January 04 - January 10 | 29°F to 41°F | 13°F to 59°F | ||
| 3 | January 11 - January 17 | 28°F to 40°F | 13°F to 66°F | ||
| 4 | January 18 - January 24 | 22°F to 36°F | -7°F to 57°F | ||
| 5 | January 25 - January 31 | 20°F to 33°F | -5°F to 45°F | ||
| 6 | February 01 - February 07 | 24°F to 40°F | 7°F to 59°F | ||
| 7 | February 08 - February 14 | 24°F to 39°F | 8°F to 64°F | ||
| 8 | February 15 - February 21 | 24°F to 41°F | 1°F to 65°F | ||
| 9 | February 22 - February 28 | 30°F to 46°F | 19°F to 67°F | ||
| 10 | March 01 - March 07 | 30°F to 47°F | 8°F to 69°F | ||
| 11 | March 08 - March 14 | 33°F to 50°F | 15°F to 71°F | ||
| 12 | March 15 - March 21 | 34°F to 53°F | 20°F to 68°F | ||
| 13 | March 22 - March 28 | 38°F to 55°F | 22°F to 69°F | ||
| 14 | March 29 - April 04 | 37°F to 56°F | 23°F to 72°F | ||
| 15 | April 05 - April 11 | 44°F to 63°F | 32°F to 77°F | TRUE | |
| 16 | April 12 - April 18 | 43°F to 61°F | 27°F to 77°F | TRUE | |
| 17 | April 19 - April 25 | 42°F to 60°F | 28°F to 80°F | TRUE | |
| 18 | April 26 - May 02 | 46°F to 63°F | 33°F to 78°F | TRUE | |
| 19 | May 03 - May 09 | 48°F to 65°F | 37°F to 75°F | TRUE | |
| 20 | May 10 - May 16 | 48°F to 67°F | 30°F to 80°F | TRUE | |
| 21 | May 17 - May 23 | 57°F to 73°F | 41°F to 84°F | TRUE | TRUE |
| 22 | May 24 - May 30 | 59°F to 76°F | 47°F to 85°F | TRUE | TRUE |
| 23 | May 31 - June 06 | 59°F to 77°F | 46°F to 87°F | TRUE | TRUE |
| 24 | June 07 - June 13 | 61°F to 77°F | 51°F to 87°F | TRUE | TRUE |
| 25 | June 14 - June 20 | 61°F to 77°F | 50°F to 91°F | TRUE | TRUE |
| 26 | June 21 - June 27 | 64°F to 80°F | 53°F to 90°F | TRUE | TRUE |
| 27 | June 28 - July 04 | 66°F to 83°F | 56°F to 90°F | TRUE | |
| 28 | July 05 - July 11 | 68°F to 84°F | 59°F to 91°F | TRUE | |
| 29 | July 12 - July 18 | 68°F to 82°F | 62°F to 88°F | TRUE | |
| 30 | July 19 - July 25 | 68°F to 83°F | 59°F to 92°F | TRUE | |
| 31 | July 26 - August 01 | 67°F to 82°F | 60°F to 89°F | TRUE | |
| 32 | August 02 - August 08 | 66°F to 81°F | 58°F to 90°F | TRUE | |
| 33 | August 09 - August 15 | 66°F to 81°F | 57°F to 91°F | TRUE | |
| 34 | August 16 - August 22 | 65°F to 81°F | 56°F to 89°F | TRUE | |
| 35 | August 23 - August 29 | 67°F to 82°F | 57°F to 90°F | TRUE | |
| 36 | August 30 - September 05 | 65°F to 79°F | 56°F to 89°F | TRUE | TRUE |
| 37 | September 06 - September 12 | 63°F to 78°F | 55°F to 89°F | TRUE | TRUE |
| 38 | September 13 - September 19 | 60°F to 77°F | 51°F to 89°F | TRUE | TRUE |
| 39 | September 20 - September 26 | 58°F to 74°F | 46°F to 87°F | TRUE | TRUE |
| 40 | September 27 - October 03 | 57°F to 73°F | 44°F to 88°F | TRUE | TRUE |
| 41 | October 04 - October 10 | 52°F to 69°F | 40°F to 82°F | TRUE | TRUE |
| 42 | October 11 - October 17 | 51°F to 66°F | 42°F to 80°F | TRUE | TRUE |
| 43 | October 18 - October 24 | 47°F to 63°F | 35°F to 76°F | TRUE | |
| 44 | October 25 - October 31 | 48°F to 60°F | 33°F to 73°F | TRUE | |
| 45 | November 01 - November 07 | 40°F to 56°F | 29°F to 74°F | TRUE | |
| 46 | November 08 - November 14 | 39°F to 55°F | 13°F to 74°F | ||
| 47 | November 15 - November 21 | 34°F to 47°F | 20°F to 65°F | ||
| 48 | November 22 - November 28 | 35°F to 47°F | 22°F to 58°F | ||
| 49 | November 29 - December 05 | 33°F to 45°F | 20°F to 57°F | ||
| 50 | December 06 - December 12 | 33°F to 46°F | 21°F to 63°F | ||
| 51 | December 13 - December 19 | 31°F to 42°F | 12°F to 60°F | ||
| 52 | December 20 - December 26 | 28°F to 43°F | -4°F to 61°F | ||
| 53 | December 27 - December 31 | 34°F to 47°F | 12°F to 60°F |
Table with days suitable to grow vegetables in Ohio
Counties in Ohio
For more precise weather statisctics and planting information, please select a County.
Adams County
Allen County
Ashland County
Ashtabula County
Athens County
Auglaize County
Belmont County
Brown County
Butler County
Carroll County
Champaign County
Clark County
Clermont County
Clinton County
Columbiana County
Coshocton County
Crawford County
Cuyahoga County
Darke County
Defiance County
Delaware County
Erie County
Fairfield County
Fayette County
Franklin County
Fulton County
Gallia County
Geauga County
Greene County
Guernsey County
Hamilton County
Hancock County
Hardin County
Harrison County
Henry County
Highland County
Hocking County
Holmes County
Huron County
Jackson County
Jefferson County
Knox County
Lake County
Lawrence County
Licking County
Logan County
Lorain County
Lucas County
Madison County
Mahoning County
Marion County
Medina County
Meigs County
Mercer County
Miami County
Monroe County
Montgomery County
Morgan County
Morrow County
Muskingum County
Noble County
Ottawa County
Paulding County
Perry County
Pickaway County
Pike County
Portage County
Preble County
Putnam County
Richland County
Ross County
Sandusky County
Scioto County
Seneca County
Shelby County
Stark County
Summit County
Trumbull County
Tuscarawas County
Union County
Van Wert County
Vinton County
Warren County
Washington County
Wayne County
Williams County
Wood County
Wyandot County
All data is provided “as is” without warranty or any representation of accuracy, timeliness or completeness.
© 2024 Plan and Plant. All rights reserved.
Average daily temperatures were calculated using
