Frost dates for Columbus Wcmh, OH
At Columbus Wcmh, the median last spring frost (32°F) is Apr 20 and the median first fall frost is Oct 24, for a typical growing season of 185 days. For a 90% chance that the last frost has passed, wait until May 7. Nearby ZIP codes are in USDA hardiness zone 6b.
- Apr 20Last spring frost (median)50% chance of 32°F after this date
- May 7Safer planting date10% chance of 32°F after this date
- Oct 24First fall frost (median)50% chance of 32°F by this date
- 185 daysGrowing season (median)between 32°F freezes
Last spring frost dates
The chance that the temperature drops to the threshold after each date.
| Temperature | 90% chance later | 50% chance later | 10% chance later |
|---|---|---|---|
| 36°F | Apr 17 | Apr 30 | May 19 |
| 32°F | Apr 5 | Apr 20 | May 7 |
| 28°F | Mar 24 | Apr 8 | Apr 25 |
| 24°F | Mar 11 | Mar 29 | Apr 12 |
First fall frost dates
The chance that the temperature has dropped to the threshold by each date.
| Temperature | 10% chance by | 50% chance by | 90% chance by |
|---|---|---|---|
| 36°F | Sep 29 | Oct 13 | Oct 25 |
| 32°F | Oct 13 | Oct 24 | Nov 4 |
| 28°F | Oct 22 | Nov 3 | Nov 16 |
| 24°F | Nov 2 | Nov 14 | Dec 1 |
Growing season length
Days between the last spring and first fall freeze, as the length reached in 9, 5 and 1 out of 10 years.
| Temperature | 9 in 10 years at least | 5 in 10 years at least | 1 in 10 years at least |
|---|---|---|---|
| 36°F | 144 days | 164 days | 182 days |
| 32°F | 164 days | 185 days | 203 days |
| 28°F | 189 days | 209 days | 229 days |
| 24°F | 211 days | 232 days | 256 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 43202 | 6b | -5 to 0°F | 1 km |
| 43210 | 6b | -5 to 0°F | 2 km |
| 43214 | 6b | -5 to 0°F | 3 km |
| 43221 | 6b | -5 to 0°F | 4 km |
| 43201 | 6b | -5 to 0°F | 4 km |
| 43212 | 6b | -5 to 0°F | 4 km |
| 43211 | 6b | -5 to 0°F | 5 km |
| 43224 | 6b | -5 to 0°F | 6 km |
| 43215 | 6b | -5 to 0°F | 7 km |
| 43222 | 6b | -5 to 0°F | 7 km |
| 43203 | 6b | -5 to 0°F | 8 km |
| 43204 | 6b | -5 to 0°F | 9 km |
| 43228 | 6b | -5 to 0°F | 11 km |
| 43119 | 6b | -5 to 0°F | 18 km |
Not the official USDA Plant Hardiness Zone Map. Zones shown here are the values published in the USDA-ARS / Oregon State University PRISM Group 2023 ZIP code tables, shown unaltered. For the official interactive map, visit planthardiness.ars.usda.gov.
About this station
- NOAA station ID USC00331785, at 40.0250, -83.0269, elevation 226 m (740 ft).
- Data quality: Representative (10+ years), 10 years of freeze data.
- Average days per year at or below 32°F: 113.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Columbus Ohio State Univ Airport (7 km)
- Columbus Port Columbus Intl Airport (13 km)
- Westerville (13 km)
- Columbus-Valley Crossing (16 km)
- Marysville (28 km)
- Centerburg 2 SE (43 km)
- Lancaster Fairfield Airport (43 km)
- London Fish Hatchery (44 km)
Sources
- NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, annual/seasonal normals by station (version 1.0.1), file dated June 27, 2023; documentation.
- USDA Agricultural Research Service and PRISM Group, Oregon State University, 2023 Plant Hardiness Zone Map ZIP code tables (CONUS, Alaska, Hawaii, Puerto Rico), files dated November 17, 2023. Data © PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 1, 2026. Official map: planthardiness.ars.usda.gov.
- U.S. Census Bureau, 2024 Gazetteer ZIP Code Tabulation Areas file, dated August 30, 2024 (ZIP centroids used to find the nearest station).
Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.