| 2023 Hardiness Zone: | Zone 4b: -25°F to -20°F | |
| 2012 Hardiness Zone: | Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F | |
| 1990 Hardiness Zone: | Zone 4a: -30F to -25F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 47b - Des Moines Lobe | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 56215 - Benson, MN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 0 | 8 | 21 | 34 | 47 | 56 | 61 | 59 | 49 | 37 | 22 | 7 | 33 |
| Avg Max Temp (°F) | 20 | 27 | 39 | 56 | 71 | 79 | 83 | 81 | 72 | 59 | 39 | 24 | 54 |
| Avg Precip (In.) | .88 | .71 | 1.66 | 2.12 | 3.02 | 4.47 | 3.89 | 3.81 | 2.59 | 2.41 | 1.44 | .64 | 27.64 |