Frost dates for Albert Lea 3se, MN
At Albert Lea 3se, the median last spring frost (32°F) is Apr 27 and the median first fall frost is Oct 9, for a typical growing season of 164 days. For a 90% chance that the last frost has passed, wait until May 10. Nearby ZIP codes are in USDA hardiness zones 4b to 5a.
- Apr 27Last spring frost (median)50% chance of 32°F after this date
- May 10Safer planting date10% chance of 32°F after this date
- Oct 9First fall frost (median)50% chance of 32°F by this date
- 164 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 7 | May 20 |
| 32°F | Apr 12 | Apr 27 | May 10 |
| 28°F | Apr 2 | Apr 15 | Apr 30 |
| 24°F | Mar 24 | Apr 7 | Apr 22 |
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 18 | Oct 1 | Oct 14 |
| 32°F | Sep 26 | Oct 9 | Oct 23 |
| 28°F | Oct 5 | Oct 19 | Nov 1 |
| 24°F | Oct 15 | Oct 29 | Nov 13 |
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 | 130 days | 147 days | 164 days |
| 32°F | 145 days | 164 days | 183 days |
| 28°F | 164 days | 186 days | 204 days |
| 24°F | 184 days | 204 days | 222 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 |
|---|---|---|---|
| 56007 | 5a | -20 to -15°F | 6 km |
| 56043 | 5a | -20 to -15°F | 8 km |
| 56036 | 5a | -20 to -15°F | 9 km |
| 56089 | 5a | -20 to -15°F | 13 km |
| 56016 | 5a | -20 to -15°F | 18 km |
| 56045 | 4b | -25 to -20°F | 19 km |
| 56029 | 5a | -20 to -15°F | 21 km |
| 56035 | 4b | -25 to -20°F | 24 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 USC00210075, at 43.6064, -93.3019, elevation 375 m (1,230 ft).
- Data quality: Standard (24+ years of data), 30 years of freeze data.
- Average days per year at or below 32°F: 158.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Austin Waste Water Plant Facility (27 km)
- Wells (38 km)
- Waseca S Rsch & Outreach Center (55 km)
- Owatonna (55 km)
- Grand Meadow (60 km)
- Winnebago (72 km)
- Rochester Intl Airport (73 km)
- Byron 4north (76 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.