Last frost date in Dickinson, North Dakota
May 20
Average last frost in spring. In an early year (1 in 10) it's over by May 8; in a late year (1 in 10) it comes after June 1.
September 22
Average first frost in fall. 1 year in 10 it comes by September 8.
Source: NOAA U.S. Climate Normals 1991–2020, station Dickinson (USC00322188), 0.8 miles from Dickinson, elevation 2,460 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | May 8 | May 20 | June 1 |
| First frost in fall | Sept 8 | Sept 22 | Oct 3 |
Frost-free days in an average year: 123
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 31 | Sept 12 |
| Frost (32°F) | Every year | May 20 | Sept 22 |
| Hard freeze (28°F) | Every year | May 10 | Sept 29 |
Nights at 32°F or colder in an average year: 201
What to plant now in Dickinson
- Spring planting calendar for an average last frost around May 20 Dickinson: May 20
- Fall planting calendar for an average first frost around September 20 Dickinson: September 22
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.
Nearby in North Dakota
Updated