| 2023 Hardiness Zone: | Zone 3b: -35°F to -30°F Zone 3a: -40°F to -35°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 4a: -30°F to -25°F | |
| 1990 Hardiness Zone: | Zone 3a: -40F to -35F | |
| Average First Frost Date: | Sep.11 - Sep. 20 | |
| Average Last Frost Date: | Jun. 1 - Jun. 10 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 50n - Boundary Lakes and Hills | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 55731 - Ely, MN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | -8 | -1 | 11 | 26 | 41 | 50 | 56 | 54 | 44 | 33 | 18 | 1 | 27 |
| Avg Max Temp (°F) | 15 | 23 | 35 | 50 | 65 | 73 | 77 | 75 | 64 | 51 | 33 | 19 | 48 |
| Avg Precip (In.) | 1.02 | .74 | 1.2 | 1.58 | 2.86 | 4.21 | 3.86 | 3.87 | 3.64 | 2.5 | 1.68 | .93 | 28.1 |