Frost dates for Warren 3 S, OH
At Warren 3 S, the median last spring frost (32°F) is May 8 and the median first fall frost is Oct 12, for a typical growing season of 157 days. For a 90% chance that the last frost has passed, wait until May 25. Nearby ZIP codes are in USDA hardiness zone 6a.
- May 8Last spring frost (median)50% chance of 32°F after this date
- May 25Safer planting date10% chance of 32°F after this date
- Oct 12First fall frost (median)50% chance of 32°F by this date
- 157 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 | May 2 | May 19 | Jun 3 |
| 32°F | Apr 23 | May 8 | May 25 |
| 28°F | Apr 13 | Apr 27 | May 15 |
| 24°F | Mar 30 | Apr 15 | May 1 |
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 19 | Oct 2 | Oct 14 |
| 32°F | Sep 30 | Oct 12 | Oct 26 |
| 28°F | Oct 8 | Oct 26 | Nov 7 |
| 24°F | Oct 23 | Nov 5 | Nov 20 |
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 | 114 days | 134 days | 156 days |
| 32°F | 134 days | 157 days | 178 days |
| 28°F | 156 days | 179 days | 202 days |
| 24°F | 180 days | 205 days | 225 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 |
|---|---|---|---|
| 44485 | 6a | -10 to -5°F | 5 km |
| 44446 | 6a | -10 to -5°F | 5 km |
| 44484 | 6a | -10 to -5°F | 6 km |
| 44440 | 6a | -10 to -5°F | 7 km |
| 44481 | 6a | -10 to -5°F | 8 km |
| 44437 | 6a | -10 to -5°F | 8 km |
| 44430 | 6a | -10 to -5°F | 9 km |
| 44515 | 6a | -10 to -5°F | 12 km |
| 44509 | 6a | -10 to -5°F | 14 km |
| 44444 | 6a | -10 to -5°F | 14 km |
| 44451 | 6a | -10 to -5°F | 14 km |
| 44510 | 6a | -10 to -5°F | 15 km |
| 44511 | 6a | -10 to -5°F | 18 km |
| 44429 | 6a | -10 to -5°F | 18 km |
| 44507 | 6a | -10 to -5°F | 19 km |
| 44412 | 6a | -10 to -5°F | 21 km |
| 44406 | 6a | -10 to -5°F | 22 km |
| 44401 | 6a | -10 to -5°F | 22 km |
| 44512 | 6a | -10 to -5°F | 23 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 USC00338769, at 41.2019, -80.8106, elevation 274 m (900 ft).
- Data quality: Standard (24+ years of data), 30 years of freeze data.
- Average days per year at or below 32°F: 147.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Mosquito Creek Lake (11 km)
- Youngstown Regional Airport (13 km)
- Hiram (21 km)
- Ravenna 2 S (40 km)
- Millport 4 NE (48 km)
- Chardon (53 km)
- Stow 4 SE (54 km)
- Dorset (55 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.