Frost dates for Drummond, WI
At Drummond, the median last spring frost (32°F) is May 20 and the median first fall frost is Oct 1, for a typical growing season of 132 days. For a 90% chance that the last frost has passed, wait until Jun 2. Nearby ZIP codes are in USDA hardiness zones 4a to 4b.
- May 20Last spring frost (median)50% chance of 32°F after this date
- Jun 2Safer planting date10% chance of 32°F after this date
- Oct 1First fall frost (median)50% chance of 32°F by this date
- 132 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 19 | Jun 1 | Jun 14 |
| 32°F | May 5 | May 20 | Jun 2 |
| 28°F | Apr 25 | May 7 | May 23 |
| 24°F | Apr 14 | Apr 27 | May 12 |
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 7 | Sep 22 | Oct 4 |
| 32°F | Sep 19 | Oct 1 | Oct 13 |
| 28°F | Sep 30 | Oct 11 | Oct 26 |
| 24°F | Oct 7 | Oct 23 | Nov 7 |
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 | 91 days | 110 days | 129 days |
| 32°F | 113 days | 132 days | 153 days |
| 28°F | 135 days | 156 days | 175 days |
| 24°F | 157 days | 177 days | 197 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 |
|---|---|---|---|
| 54832 | 4a | -30 to -25°F | 6 km |
| 54839 | 4b | -25 to -20°F | 9 km |
| 54821 | 4a | -30 to -25°F | 15 km |
| 54856 | 4b | -25 to -20°F | 16 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 USC00472240, at 46.3333, -91.2667, elevation 408 m (1,340 ft).
- Data quality: Representative (10+ years), 14 years of freeze data.
- Average days per year at or below 32°F: 183.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Clam Lake 4w (29 km)
- Brule Ranger Station (34 km)
- Ashland Kennedy Mem Airport (36 km)
- Ashland 3s (36 km)
- Hayward Muni Airport (37 km)
- Hayward Ranger Station (41 km)
- Gordon (42 km)
- Solon Springs (43 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.