| 2023 Hardiness Zone: | Zone 4b: -25°F to -20°F |
| 2012 Hardiness Zone: | Zone 4b: -25°F to -20°F |
| 1990 Hardiness Zone: | Zone 4a: -30F to -25F |
| Average First Frost Date: | Oct. 1 - Oct. 10 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 51k - McGrath Till Plain and Drumlins |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 55355 - Litchfield, MN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 0 | 7 | 20 | 34 | 47 | 56 | 61 | 58 | 48 | 36 | 22 | 6 | 33 |
| Avg Max Temp (°F) | 19 | 26 | 38 | 55 | 69 | 78 | 82 | 79 | 70 | 58 | 38 | 23 | 53 |
| Avg Precip (In.) | .79 | .66 | 1.58 | 2.32 | 3.33 | 4.85 | 3.98 | 3.69 | 2.87 | 2.15 | 1.52 | .68 | 28.42 |