Frost dates for Hurley, WI
At Hurley, the median last spring frost (32°F) is May 24 and the median first fall frost is Sep 28, for a typical growing season of 128 days. For a 90% chance that the last frost has passed, wait until Jun 7. Nearby ZIP codes are in USDA hardiness zones 4a to 4b.
- May 24Last spring frost (median)50% chance of 32°F after this date
- Jun 7Safer planting date10% chance of 32°F after this date
- Sep 28First fall frost (median)50% chance of 32°F by this date
- 128 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 20 | Jun 3 | Jun 18 |
| 32°F | May 4 | May 24 | Jun 7 |
| 28°F | Apr 23 | May 8 | May 28 |
| 24°F | Apr 12 | Apr 27 | May 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 | Sep 2 | Sep 18 | Oct 2 |
| 32°F | Sep 13 | Sep 28 | Oct 11 |
| 28°F | Sep 22 | Oct 8 | Oct 23 |
| 24°F | Oct 3 | Oct 21 | Nov 5 |
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 | 83 days | 105 days | 126 days |
| 32°F | 105 days | 128 days | 150 days |
| 28°F | 126 days | 151 days | 174 days |
| 24°F | 151 days | 175 days | 198 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 |
|---|---|---|---|
| 54525 | 4b | -25 to -20°F | 4 km |
| 54534 | 4a | -30 to -25°F | 12 km |
| 54550 | 4a | -30 to -25°F | 14 km |
| 54536 | 4a | -30 to -25°F | 17 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 USC00473800, at 46.4625, -90.1956, elevation 440 m (1,444 ft).
- Data quality: Standard (24+ years of data), 29 years of freeze data.
- Average days per year at or below 32°F: 185.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Saxon 1wsw (19 km)
- Mellen 4 NE (36 km)
- Rest Lake (45 km)
- Madeline Island (56 km)
- Ashland 3s (56 km)
- Ashland Kennedy Mem Airport (56 km)
- Butternut 3sw (60 km)
- Park Falls Dnr HQ (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.