| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F |
| Average First Frost Date: | Oct. 1 - Oct. 10 |
| Average Last Frost Date: | May 21 - May 31 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 50aa - Menominee-Drummond Lakeshore |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 49878 - Rapid River, MI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 6 | 9 | 18 | 30 | 41 | 49 | 55 | 54 | 47 | 37 | 26 | 14 | 32 |
| Avg Max Temp (°F) | 25 | 28 | 37 | 48 | 62 | 71 | 76 | 75 | 67 | 55 | 41 | 30 | 51 |
| Avg Precip (In.) | 1.76 | 1.13 | 2.04 | 2.26 | 2.78 | 3.25 | 3.3 | 3.66 | 3.51 | 2.81 | 2.56 | 1.81 | 30.86 |