Ohio Frost Dates: Last and First Frost by Town

130 NOAA weather stations · 1991–2020 U.S. Climate Normals · Data updated 2026-10-29

Quick answer

Across Ohio's 130 NOAA stations with regular frost, the median last spring frost is April 24 and the median first fall frost is October 22. Last frost dates range from April 8 at Cleveland Burke Airport to May 10 at Dorset, so enter your ZIP code below for the station nearest you.

How frost dates vary across Ohio

Safety margin: the median 10%-risk date (May 10) is about 16 days after the median last frost. Waiting until then cuts the chance of a killing frost on tender transplants from 1 in 2 to 1 in 10.

Frost dates at Ohio's major weather stations

These National Weather Service stations, mostly at airports, have the longest and most complete records in the state.


Akron Canton Regional Airport	1,208	Apr 24	May 11	Oct 26	184
Akron Fulton Intl Airport	1,044	Apr 24	May 9	Oct 28	186
Ashtabula County Airport	924	May 2	May 20	Oct 21	171
Cincinnati	1,056	Apr 19	May 6	Oct 22	185
Cincinnati Lunken Airport	490	Apr 16	May 3	Oct 25	190
Cleveland	763	Apr 20	May 5	Nov 3	198
Cleveland Burke Airport	584	Apr 8	Apr 20	Nov 12	217
Columbus Ohio State University Airport	905	Apr 22	May 9	Oct 23	183
Columbus Port Columbus Intl Airport	810	Apr 18	May 5	Oct 27	191
Dayton Intl Airport	1,000	Apr 16	May 3	Oct 28	194
Dayton Wright Bros Airport	962	Apr 17	May 6	Oct 26	192
Defiance Memorial Airport	708	Apr 28	May 14	Oct 17	170
Elyria Lorain County Airport	794	Apr 24	May 10	Oct 24	182
Findlay Airport	800	Apr 19	May 6	Oct 23	185
Hamilton Butler County Regional Airport	634	Apr 22	May 10	Oct 18	178
Lancaster Fairfield Airport	869	Apr 26	May 12	Oct 13	169
Lima Allen County Airport	975	Apr 22	May 7	Oct 22	181
Mansfield Lahm Municipal Airport	1,295	Apr 26	May 12	Oct 22	177
Marion Municipal Airport	994	Apr 24	May 10	Oct 20	178
New Philadelphia Field	895	Apr 26	May 15	Oct 21	176
Newark Heath Airport	884	Apr 22	May 10	Oct 18	178
Sandusky	584	Apr 10	Apr 23	Nov 5	209
Toledo Express Airport	669	Apr 22	May 7	Oct 24	188
Toledo Metcalf Field	622	Apr 20	May 7	Oct 27	188
Wooster 3 SSE	1,102	Apr 24	May 12	Oct 21	177
Wooster Wayne County Airport	1,137	Apr 29	May 15	Oct 14	167
Youngstown Regional Airport	1,180	May 1	May 20	Oct 17	167
Zanesville Municipal Airport	880	Apr 26	May 14	Oct 19	177

All 130 stations in Ohio

Last frost and first frost are medians: a 50% chance of a 32°F night after (spring) or before (fall) that date. 10% risk is the spring date with only a 1-in-10 chance of a later frost. Click a column to sort.

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Akron Canton Regional Airport	1,208	Apr 24	May 11	Oct 26	184
Akron Fulton Intl Airport	1,044	Apr 24	May 9	Oct 28	186
Ashland 2 SW	1,265	Apr 30	May 15	Oct 15	168
Ashtabula County Airport	924	May 2	May 20	Oct 21	171
Athens Ou	684	Apr 25	May 12	Oct 23	179
Barnesville	1,280	Apr 27	May 13	Oct 22	177
Bellefontaine	1,176	Apr 26	May 12	Oct 20	175
Beverly Stp	624	Apr 24	May 11	Oct 22	178
Bowling Green Wwtp	675	Apr 22	May 7	Oct 25	186
Bryan 2 SE	730	Apr 26	May 11	Oct 17	170
Bucyrus	955	Apr 19	May 6	Oct 27	190
Cadiz	1,260	Apr 21	May 5	Oct 25	186
Caldwell 3SE	880	Apr 30	May 20	Oct 14	167
Cambridge	800	Apr 28	May 15	Oct 17	172
Carpenter 2 S	822	Apr 27	May 15	Oct 14	168
Celina 3 NE	866	Apr 27	May 10	Oct 19	175
Centerburg 2 SE	1,205	Apr 27	May 13	Oct 17	172
Chardon	1,130	May 5	May 21	Oct 18	164
Cheviot	891	Apr 17	May 5	Oct 26	191
Cheviot 3 W	853	Apr 16	May 3	Oct 28	193
Chillicothe Mound City	650	Apr 20	May 7	Oct 22	184
Chilo Meldahl Locks & Dam	480	Apr 16	May 4	Oct 31	196
Chippewa Lake	1,180	Apr 29	May 15	Oct 19	172
Cincinnati	1,056	Apr 19	May 6	Oct 22	185
Cincinnati Lunken Airport	490	Apr 16	May 3	Oct 25	190
Cincinnati-fernbank	500	Apr 13	May 2	Oct 31	197
Circleville	675	Apr 17	May 4	Oct 28	192
Cleveland	763	Apr 20	May 5	Nov 3	198
Cleveland Burke Airport	584	Apr 8	Apr 20	Nov 12	217
Columbus Ohio State University Airport	905	Apr 22	May 9	Oct 23	183
Columbus Port Columbus Intl Airport	810	Apr 18	May 5	Oct 27	191
Columbus Wcmh	740	Apr 20	May 7	Oct 24	185
Columbus-valley Crossing	760	Apr 23	May 8	Oct 19	177
Coshocton Agricultural Rsch Station	1,140	Apr 18	May 5	Oct 28	190
Coshocton Wpc Plt	760	Apr 27	May 16	Oct 18	174
Danville 2 W	970	May 2	May 19	Oct 8	157
Dayton Intl Airport	1,000	Apr 16	May 3	Oct 28	194
Dayton McD	720	Apr 18	May 5	Oct 25	189
Dayton Wright Bros Airport	962	Apr 17	May 6	Oct 26	192
Defiance	700	Apr 22	May 8	Oct 24	183
Defiance Memorial Airport	708	Apr 28	May 14	Oct 17	170
Dennison Wtr Wks	860	Apr 29	May 17	Oct 15	170
Dorset	980	May 10	May 27	Oct 10	154
Eaton	1,002	Apr 25	May 10	Oct 20	176
Elyria 3 E	730	Apr 22	May 7	Nov 1	192
Elyria Lorain County Airport	794	Apr 24	May 10	Oct 24	182
Fairfield	575	Apr 19	May 7	Oct 22	186
Findlay Airport	800	Apr 19	May 6	Oct 23	185
Findlay Wpcc	768	Apr 22	May 6	Oct 24	183
Franklin	679	Apr 24	May 11	Oct 19	178
Fredericktown 4 S	1,050	May 1	May 18	Oct 10	161
Fremont	600	Apr 26	May 13	Oct 23	179
Fremont Agricultural Station	664	Apr 21	May 6	Oct 24	183
Galion Wtr Wks	1,170	Apr 26	May 11	Oct 20	176
Gallipolis	578	Apr 18	May 4	Oct 28	192
Greenville Wtp	1,030	Apr 21	May 7	Oct 20	180
Hamilton Butler County Regional Airport	634	Apr 22	May 10	Oct 18	178
Hannibal Locks & Dam	620	Apr 26	May 13	Oct 26	182
Hicksville	750	Apr 28	May 13	Oct 17	170
Hillsboro	953	Apr 24	May 11	Oct 20	178
Hiram	1,230	May 1	May 18	Oct 20	170
Hoytville 2 NE	700	Apr 24	May 10	Oct 21	179
Huntsville 3N	1,034	Apr 22	May 6	Oct 27	188
Jackson 3 NW	845	Apr 22	May 11	Oct 21	181
Kenton	997	Apr 22	May 7	Oct 24	182
Kirtland-holden 2	1,030	Apr 26	May 14	Oct 31	184
Lancaster	827	Apr 22	May 9	Oct 24	183
Lancaster Fairfield Airport	869	Apr 26	May 12	Oct 13	169
Lima Allen County Airport	975	Apr 22	May 7	Oct 22	181
Lima Wwtp	850	Apr 24	May 11	Oct 24	182
Logan	722	Apr 30	May 17	Oct 14	167
London Fish Hatchery	1,120	Apr 24	May 10	Oct 18	175
Lucasville	568	Apr 21	May 9	Oct 24	185
Mansfield 5 W	1,350	Apr 30	May 17	Oct 15	167
Mansfield Lahm Municipal Airport	1,295	Apr 26	May 12	Oct 22	177
Marietta Wwtp	610	Apr 18	May 4	Oct 27	191
Marion 2 N	965	Apr 25	May 11	Oct 20	178
Marion Municipal Airport	994	Apr 24	May 10	Oct 20	178
Marysville	970	Apr 19	May 5	Oct 26	188
Mc Connellsville Lake 7	760	Apr 27	May 14	Oct 21	176
Milford	520	Apr 23	May 8	Oct 18	177
Millersburg	819	May 2	May 21	Oct 14	164
Millport 4 NE	1,170	May 2	May 20	Oct 13	165
Montpelier	860	Apr 28	May 12	Oct 18	173
Mosquito Creek Lake	910	Apr 30	May 16	Oct 23	176
Napoleon	682	Apr 24	May 7	Oct 21	179
Napoleon 1SW	670	Apr 23	May 9	Oct 24	183
New Carlisle	874	Apr 24	May 10	Oct 17	173
New Lexington 2 NW	877	Apr 30	May 16	Oct 17	168
New Philadelphia	925	Apr 30	May 17	Oct 15	167
New Philadelphia Field	895	Apr 26	May 15	Oct 21	176
Newark Heath Airport	884	Apr 22	May 10	Oct 18	178
Newark Wtr Wks	835	Apr 29	May 17	Oct 16	167
Newport	676	Apr 23	May 10	Oct 26	185
Norwalk Wwtp	670	Apr 25	May 9	Oct 25	183
Oberlin	816	Apr 27	May 14	Oct 22	178
Painesville 4 NW	600	Apr 15	Apr 27	Nov 9	209
Pandora	770	Apr 23	May 9	Oct 22	180
Paulding	725	Apr 25	May 10	Oct 19	175
Philo 3 SW	1,020	Apr 19	May 9	Oct 25	189
Piqua Wwtp	853	Apr 18	May 5	Oct 23	186
Portsmouth-sciotoville	540	Apr 17	May 5	Oct 25	191
Ravenna 2 S	1,107	Apr 21	May 7	Oct 29	189
Ripley Experiment Farm	880	Apr 29	May 16	Oct 11	162
S Point	553	Apr 16	May 4	Oct 30	196
Sandusky	584	Apr 10	Apr 23	Nov 5	209
Sidney 1 S	940	Apr 27	May 12	Oct 20	175
Springfield Wtp	951	Apr 25	May 12	Oct 19	175
Steubenville	992	Apr 29	May 15	Oct 20	175
Stow 4 SE	1,060	Apr 30	May 16	Oct 21	173
Tiffin	740	Apr 23	May 7	Oct 23	184
Toledo Express Airport	669	Apr 22	May 7	Oct 24	188
Toledo Metcalf Field	622	Apr 20	May 7	Oct 27	188
Upper Sandusky	854	Apr 29	May 14	Oct 17	171
Urbana Wwtp	1,019	Apr 24	May 10	Oct 19	179
Van Wert 1 S	790	Apr 21	May 6	Oct 26	187
Warren 3 S	900	May 8	May 25	Oct 12	157
Washington Court House	957	Apr 23	May 8	Oct 21	181
Waterloo	625	Apr 30	May 16	Oct 15	167
Wauseon Wtp	750	Apr 29	May 16	Oct 16	170
Waverly	572	Apr 21	May 9	Oct 22	182
Westerville	802	Apr 22	May 10	Oct 24	183
WFO Wilmington	1,053	Apr 17	May 4	Oct 22	187
Wilmington 3 N	1,033	Apr 20	May 6	Oct 20	180
Wooster 3 SSE	1,102	Apr 24	May 12	Oct 21	177
Wooster Experiment Station	1,020	Apr 30	May 18	Oct 12	163
Wooster Wayne County Airport	1,137	Apr 29	May 15	Oct 14	167
Xenia 6 SSE	997	Apr 18	May 4	Oct 24	188
Youngstown Regional Airport	1,180	May 1	May 20	Oct 17	167
Zanesville Municipal Airport	880	Apr 26	May 14	Oct 19	177

Frequently asked questions

When is the last frost in Ohio?

The median last spring frost (32°F) across Ohio's NOAA weather stations is April 24, based on 1991–2020 climate normals. It ranges from April 8 at Cleveland Burke Airport to May 10 at Dorset. For a safer planting date, use the 10%-risk date; the state median for that is May 10.

When is the first frost in Ohio?

The median first fall frost across Ohio's stations is October 22. The earliest median first frost is October 8 at Danville 2 W, and the latest is November 12 at Cleveland Burke Airport.

How long is the growing season in Ohio?

The median frost-free season is 179 days across Ohio's stations, from 154 days at Dorset to 217 days at Cleveland Burke Airport.

When should I plant tomatoes in Ohio?

Plant tomatoes outdoors after your local last frost, ideally after the 10%-risk date when nights stay above 50°F. At a typical Ohio station that means starting seeds indoors 6–8 weeks before April 24 and transplanting from about May 10. Check your ZIP code, because dates vary by weeks across the state.

How to use these dates

Frost dates are 30-year averages from NOAA, not forecasts. Use them to plan seed starting and planting, then watch the 10-day forecast as the date approaches. Cold air settles in valleys and low spots, so a garden at the bottom of a slope can frost a week or more later in spring than the nearest station shows.

Ready to plan? The planting calendar by ZIP code turns these dates into start-indoors, transplant and sowing dates for 30 crops.

Sources and method

Dates are the 32°F freeze probabilities published in the NOAA NCEI 1991–2020 U.S. Climate Normals for each station. Station names are NOAA's, lightly expanded for readability. See the methodology or download the full table.