| 2023 Hardiness Zone: | Zone 4b: -25°F to -20°F 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 4b: -25F to -20F | |
| 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: | 50a - Lake Superior Lacustrine Clay Plain | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 55797 - Wrenshall, MN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | -2 | 4 | 16 | 28 | 38 | 46 | 54 | 53 | 45 | 34 | 20 | 5 | 28 |
| Avg Max Temp (°F) | 20 | 27 | 38 | 52 | 67 | 75 | 80 | 77 | 68 | 55 | 37 | 24 | 52 |
| Avg Precip (In.) | 1.02 | .74 | 1.58 | 2.05 | 3.17 | 4.21 | 4.37 | 4.31 | 3.92 | 2.51 | 2.09 | .95 | 30.93 |