Frost dates for Greenville 2 NNE, MI
At Greenville 2 NNE, the median last spring frost (32°F) is May 18 and the median first fall frost is Sep 28, for a typical growing season of 133 days. For a 90% chance that the last frost has passed, wait until Jun 3. Nearby ZIP codes are in USDA hardiness zones 5b to 6a.
- May 18Last spring frost (median)50% chance of 32°F after this date
- Jun 3Safer planting date10% chance of 32°F after this date
- Sep 28First fall frost (median)50% chance of 32°F by this date
- 133 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 14 | Jun 1 | Jun 18 |
| 32°F | Apr 29 | May 18 | Jun 3 |
| 28°F | Apr 21 | May 4 | May 23 |
| 24°F | Apr 8 | Apr 23 | May 10 |
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 3 | Sep 19 | Oct 2 |
| 32°F | Sep 15 | Sep 28 | Oct 10 |
| 28°F | Sep 24 | Oct 7 | Oct 23 |
| 24°F | Oct 5 | Oct 23 | Nov 6 |
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 | 89 days | 109 days | 133 days |
| 32°F | 111 days | 133 days | 155 days |
| 28°F | 133 days | 155 days | 176 days |
| 24°F | 157 days | 180 days | 202 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 |
|---|---|---|---|
| 48838 | 6a | -10 to -5°F | 3 km |
| 49326 | 6a | -10 to -5°F | 8 km |
| 48885 | 5b | -15 to -10°F | 9 km |
| 48809 | 6a | -10 to -5°F | 14 km |
| 49347 | 5b | -15 to -10°F | 15 km |
| 48884 | 6a | -10 to -5°F | 16 km |
| 48888 | 5b | -15 to -10°F | 17 km |
| 48834 | 6a | -10 to -5°F | 19 km |
| 49322 | 5b | -15 to -10°F | 19 km |
| 49341 | 6a | -10 to -5°F | 22 km |
| 48852 | 5b | -15 to -10°F | 23 km |
| 48886 | 5b | -15 to -10°F | 25 km |
| 49339 | 5b | -15 to -10°F | 25 km |
| 48850 | 5b | -15 to -10°F | 26 km |
| 48829 | 5b | -15 to -10°F | 28 km |
| 49329 | 5b | -15 to -10°F | 31 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 USC00203429, at 43.2025, -85.2422, elevation 269 m (882 ft).
- Data quality: Representative (10+ years), 20 years of freeze data.
- Average days per year at or below 32°F: 162.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Ionia 2ssw (31 km)
- E Grand Rapids (42 km)
- Grand Rapids (42 km)
- Nwsfo Grand Rapids (42 km)
- Kent City 2 SW (43 km)
- Alma (52 km)
- Central Michigan Univ (57 km)
- Big Rapids Water Plant (59 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.