Frost dates for Eau Claire 4 NE, MI
At Eau Claire 4 NE, the median last spring frost (32°F) is Apr 22 and the median first fall frost is Oct 30, for a typical growing season of 189 days. For a 90% chance that the last frost has passed, wait until May 7. Nearby ZIP codes are in USDA hardiness zone 6a.
- Apr 22Last spring frost (median)50% chance of 32°F after this date
- May 7Safer planting date10% chance of 32°F after this date
- Oct 30First fall frost (median)50% chance of 32°F by this date
- 189 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 18 | May 1 | May 20 |
| 32°F | Apr 6 | Apr 22 | May 7 |
| 28°F | Mar 27 | Apr 9 | Apr 24 |
| 24°F | Mar 14 | Mar 30 | Apr 14 |
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 | Oct 3 | Oct 17 | Nov 1 |
| 32°F | Oct 15 | Oct 30 | Nov 12 |
| 28°F | Oct 27 | Nov 9 | Nov 25 |
| 24°F | Nov 3 | Nov 20 | Dec 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 | 146 days | 166 days | 185 days |
| 32°F | 167 days | 189 days | 209 days |
| 28°F | 192 days | 213 days | 233 days |
| 24°F | 213 days | 233 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 |
|---|---|---|---|
| 49111 | 6a | -10 to -5°F | 4 km |
| 49102 | 6a | -10 to -5°F | 7 km |
| 49126 | 6a | -10 to -5°F | 11 km |
| 49103 | 6a | -10 to -5°F | 13 km |
| 49057 | 6a | -10 to -5°F | 19 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 USC00202445, at 42.0153, -86.2430, elevation 256 m (840 ft).
- Data quality: Representative (10+ years), 23 years of freeze data.
- Average days per year at or below 32°F: 122.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Dowagiac 1 W (10 km)
- Benton Harbor Airport (19 km)
- Benton Harbor Airport (19 km)
- Niles (20 km)
- S Haven (43 km)
- Bloomingdale (47 km)
- Three Rivers (51 km)
- Kalamazoo Battle Ck Intl Airport (62 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.