Frost dates for Kalamazoo Battle Ck Intl Airport, MI
At Kalamazoo Battle Ck Intl Airport, the median last spring frost (32°F) is Apr 28 and the median first fall frost is Oct 18, for a typical growing season of 172 days. For a 90% chance that the last frost has passed, wait until May 13. Nearby ZIP codes are in USDA hardiness zone 6a.
- Apr 28Last spring frost (median)50% chance of 32°F after this date
- May 13Safer planting date10% chance of 32°F after this date
- Oct 18First fall frost (median)50% chance of 32°F by this date
- 172 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 24 | May 8 | May 24 |
| 32°F | Apr 13 | Apr 28 | May 13 |
| 28°F | Apr 3 | Apr 17 | May 3 |
| 24°F | Mar 23 | Apr 5 | Apr 20 |
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 22 | Oct 6 | Oct 19 |
| 32°F | Oct 2 | Oct 18 | Nov 1 |
| 28°F | Oct 16 | Nov 1 | Nov 14 |
| 24°F | Nov 1 | Nov 13 | Nov 30 |
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 | 128 days | 149 days | 169 days |
| 32°F | 150 days | 172 days | 192 days |
| 28°F | 174 days | 196 days | 217 days |
| 24°F | 200 days | 220 days | 241 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 |
|---|---|---|---|
| 49001 | 6a | -10 to -5°F | 3 km |
| 49002 | 6a | -10 to -5°F | 4 km |
| 49008 | 6a | -10 to -5°F | 6 km |
| 49024 | 6a | -10 to -5°F | 6 km |
| 49048 | 6a | -10 to -5°F | 7 km |
| 49007 | 6a | -10 to -5°F | 8 km |
| 49006 | 6a | -10 to -5°F | 9 km |
| 49074 | 6a | -10 to -5°F | 10 km |
| 49088 | 6a | -10 to -5°F | 12 km |
| 49004 | 6a | -10 to -5°F | 13 km |
| 49097 | 6a | -10 to -5°F | 14 km |
| 49009 | 6a | -10 to -5°F | 14 km |
| 49087 | 6a | -10 to -5°F | 16 km |
| 49071 | 6a | -10 to -5°F | 18 km |
| 49065 | 6a | -10 to -5°F | 26 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 USW00094815, at 42.2347, -85.5519, elevation 265 m (868 ft).
- Data quality: Representative (10+ years), 20 years of freeze data.
- Average days per year at or below 32°F: 128.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Gull Lake Biological Station (22 km)
- Battle Creek Kellogg Airport (26 km)
- Battle Creek 5nw (28 km)
- Three Rivers (35 km)
- Bloomingdale (38 km)
- Allegan 5ne (43 km)
- Hastings (50 km)
- Coldwater St. School (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.