| 2023 Hardiness Zone: | Zone 4a: -30°F to -25°F | |
| 2012 Hardiness Zone: | Zone 3b: -35°F to -30°F 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 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 51l - Wadena/Todd Drumlins and Osakis Till Plain | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 56482 - Wadena, MN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | -5 | 2 | 15 | 29 | 43 | 53 | 57 | 55 | 45 | 33 | 18 | 3 | 29 |
| Avg Max Temp (°F) | 16 | 24 | 35 | 53 | 68 | 75 | 79 | 78 | 68 | 55 | 35 | 21 | 51 |
| Avg Precip (In.) | .93 | .6 | 1.57 | 1.97 | 3.01 | 4.27 | 3.79 | 3.18 | 2.63 | 2.5 | 1.44 | .61 | 26.49 |