Frost dates for Northgate 5 ESE, ND
At Northgate 5 ESE, the median last spring frost (32°F) is May 20 and the median first fall frost is Sep 19, for a typical growing season of 121 days. For a 90% chance that the last frost has passed, wait until Jun 2. Nearby ZIP codes are in USDA hardiness zones 3b to 4a.
- May 20Last spring frost (median)50% chance of 32°F after this date
- Jun 2Safer planting date10% chance of 32°F after this date
- Sep 19First fall frost (median)50% chance of 32°F by this date
- 121 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 17 | May 29 | Jun 15 |
| 32°F | May 9 | May 20 | Jun 2 |
| 28°F | Apr 29 | May 11 | May 24 |
| 24°F | Apr 16 | May 2 | May 15 |
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 | Aug 25 | Sep 9 | Sep 20 |
| 32°F | Sep 7 | Sep 19 | Sep 28 |
| 28°F | Sep 14 | Sep 26 | Oct 8 |
| 24°F | Sep 22 | Oct 5 | Oct 18 |
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 | 79 days | 101 days | 119 days |
| 32°F | 102 days | 121 days | 135 days |
| 28°F | 120 days | 137 days | 154 days |
| 24°F | 134 days | 154 days | 175 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 |
|---|---|---|---|
| 58721 | 4a | -30 to -25°F | 17 km |
| 58737 | 3b | -35 to -30°F | 18 km |
| 58772 | 3b | -35 to -30°F | 34 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 USW00094084, at 48.9675, -102.1703, elevation 561 m (1,842 ft).
- Data quality: Representative (10+ years), 14 years of freeze data.
- Average days per year at or below 32°F: 202.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Kenmare 1 WSW (34 km)
- Mohall (54 km)
- Powers Lake 1n (56 km)
- Stanley 3 NNW (70 km)
- Foxholm 7 N (72 km)
- Crosby (83 km)
- Wildrose 3nw (84 km)
- Tioga 1e (84 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.