| 2023 Hardiness Zone: | Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F | |
| 2012 Hardiness Zone: | Zone 4a: -30°F to -25°F | |
| 1990 Hardiness Zone: | Zone 3b: -35F to -30F | |
| Average First Frost Date: | Sep. 21 - Sep. 30 | |
| Average Last Frost Date: | May 21 - May 31 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 43a - Missouri Plateau | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 58601 - Dickinson, ND | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 1 | 8 | 17 | 29 | 40 | 49 | 54 | 52 | 41 | 30 | 16 | 5 | 29 |
| Avg Max Temp (°F) | 24 | 31 | 41 | 55 | 67 | 76 | 83 | 83 | 71 | 58 | 39 | 28 | 54 |
| Avg Precip (In.) | .36 | .38 | .69 | 1.65 | 2.31 | 3.47 | 2.19 | 1.62 | 1.59 | 1.32 | .61 | .36 | 16.56 |