Frost dates for Blissfield 1nne, MI
At Blissfield 1nne, the median last spring frost (32°F) is Apr 29 and the median first fall frost is Oct 13, for a typical growing season of 168 days. For a 90% chance that the last frost has passed, wait until May 15. Nearby ZIP codes are in USDA hardiness zones 6a to 6b.
- Apr 29Last spring frost (median)50% chance of 32°F after this date
- May 15Safer planting date10% chance of 32°F after this date
- Oct 13First fall frost (median)50% chance of 32°F by this date
- 168 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 25 | May 9 | May 24 |
| 32°F | Apr 15 | Apr 29 | May 15 |
| 28°F | Apr 3 | Apr 16 | May 2 |
| 24°F | Mar 21 | Apr 3 | Apr 18 |
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 20 | Oct 2 | Oct 14 |
| 32°F | Sep 30 | Oct 13 | Oct 26 |
| 28°F | Oct 11 | Oct 26 | Nov 7 |
| 24°F | Oct 25 | Nov 6 | 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 | 125 days | 145 days | 165 days |
| 32°F | 147 days | 168 days | 187 days |
| 28°F | 170 days | 192 days | 212 days |
| 24°F | 197 days | 216 days | 235 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 |
|---|---|---|---|
| 49228 | 6a | -10 to -5°F | 4 km |
| 49268 | 6a | -10 to -5°F | 6 km |
| 49276 | 6a | -10 to -5°F | 9 km |
| 49238 | 6a | -10 to -5°F | 9 km |
| 49267 | 6a | -10 to -5°F | 15 km |
| 48144 | 6b | -5 to 0°F | 22 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 USC00200842, at 41.8400, -83.8608, elevation 210 m (690 ft).
- Data quality: Representative (10+ years), 11 years of freeze data.
- Average days per year at or below 32°F: 141.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Adrian 2 NNE (15 km)
- Adrian Lenawee Co Airport (18 km)
- Tecumseh (19 km)
- Dundee (22 km)
- Tipton 2wnw (29 km)
- Milan Wastewater Plant (31 km)
- Saline 4sw (32 km)
- Morenci (32 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.