| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5a: -20°F to -15°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 4b: -25F to -20F |
| Average First Frost Date: | Sep. 21 - Sep. 30 |
| Average Last Frost Date: | Jun. 1 - Jun. 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 51m - Manistee-Leelanau Shore |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 49612 - Alden, MI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 13 | 12 | 20 | 31 | 41 | 51 | 56 | 55 | 48 | 38 | 29 | 19 | 34 |
| Avg Max Temp (°F) | 28 | 31 | 40 | 54 | 68 | 76 | 81 | 78 | 70 | 59 | 44 | 33 | 55 |
| Avg Precip (In.) | 2.38 | 1.53 | 1.95 | 2.48 | 2.58 | 3 | 3.06 | 3.47 | 3.83 | 3.26 | 2.8 | 2.39 | 32.74 |