| 2023 Hardiness Zone: | Zone 3b: -35°F to -30°F Zone 4b: -25°F to -20°F Zone 5a: -20°F to -15°F Zone 4a: -30°F to -25°F | |
| 2012 Hardiness Zone: | Zone 3b: -35°F to -30°F Zone 3a: -40°F to -35°F Zone 4b: -25°F to -20°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: | 50t - North Shore Highlands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 55616 - Two Harbors, MN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 4 | 10 | 20 | 30 | 39 | 46 | 54 | 56 | 47 | 37 | 25 | 11 | 32 |
| Avg Max Temp (°F) | 22 | 27 | 36 | 48 | 59 | 68 | 74 | 73 | 65 | 53 | 38 | 26 | 49 |
| Avg Precip (In.) | 1.03 | .76 | 1.64 | 2.09 | 3 | 4.2 | 4.32 | 4 | 4.12 | 2.47 | 2.18 | 1.09 | 30.89 |