| 2023 Hardiness Zone: | Zone 3b: -35°F to -30°F Zone 4a: -30°F to -25°F | |
| 2012 Hardiness Zone: | Zone 3b: -35°F to -30°F | |
| 1990 Hardiness Zone: | Zone 3b: -35F to -30F | |
| 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: | 50m - Mesabi Range | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 55746 - Hibbing, MN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | -6 | 1 | 13 | 27 | 40 | 49 | 55 | 52 | 43 | 33 | 18 | 3 | 27 |
| Avg Max Temp (°F) | 15 | 23 | 35 | 50 | 65 | 73 | 77 | 75 | 65 | 53 | 33 | 20 | 49 |
| Avg Precip (In.) | .81 | .6 | 1.03 | 1.56 | 2.63 | 4.33 | 4.54 | 3.59 | 3.18 | 2.46 | 1.38 | .74 | 26.84 |