Frost dates for Sisseton Muni Airport, SD
At Sisseton Muni Airport, the median last spring frost (32°F) is May 3 and the median first fall frost is Sep 30, for a typical growing season of 149 days. For a 90% chance that the last frost has passed, wait until May 16. Nearby ZIP codes are in USDA hardiness zone 4b.
- May 3Last spring frost (median)50% chance of 32°F after this date
- May 16Safer planting date10% chance of 32°F after this date
- Sep 30First fall frost (median)50% chance of 32°F by this date
- 149 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 30 | May 14 | May 27 |
| 32°F | Apr 21 | May 3 | May 16 |
| 28°F | Apr 10 | Apr 24 | May 8 |
| 24°F | Apr 3 | Apr 15 | Apr 29 |
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 9 | Sep 22 | Oct 3 |
| 32°F | Sep 17 | Sep 30 | Oct 13 |
| 28°F | Sep 26 | Oct 10 | Oct 25 |
| 24°F | Oct 6 | Oct 22 | Nov 4 |
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 | 112 days | 130 days | 148 days |
| 32°F | 131 days | 149 days | 167 days |
| 28°F | 147 days | 168 days | 187 days |
| 24°F | 167 days | 188 days | 208 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
Closest ZIP codes (each is closer to another station)
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 57262 | 4b | -25 to -20°F | 6 km |
| 56219 | 4b | -25 to -20°F | 16 km |
| 57257 | 4b | -25 to -20°F | 19 km |
| 57224 | 4b | -25 to -20°F | 20 km |
| 57255 | 4b | -25 to -20°F | 21 km |
| 56211 | 4b | -25 to -20°F | 25 km |
| 57260 | 4b | -25 to -20°F | 29 km |
| 57279 | 4b | -25 to -20°F | 30 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 USW00094993, at 45.6689, -96.9914, elevation 354 m (1,161 ft).
- Data quality: Representative (10+ years), 22 years of freeze data.
- Average days per year at or below 32°F: 170.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Sisseton (4 km)
- Victor 4 N (31 km)
- Wilmot (31 km)
- Roy Lake (35 km)
- Waubay National Wild Life (38 km)
- Summit 1 W (41 km)
- Milbank 4 NW (50 km)
- Webster (56 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.