| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 56h - Interlobate Dead Ice Moraines |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 48307 - Rochester, MI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 18 | 27 | 37 | 48 | 57 | 62 | 60 | 53 | 42 | 32 | 22 | 39 |
| Avg Max Temp (°F) | 31 | 34 | 45 | 57 | 70 | 79 | 83 | 81 | 73 | 61 | 47 | 35 | 58 |
| Avg Precip (In.) | 1.92 | 1.67 | 2.51 | 3.09 | 2.87 | 3.12 | 3.24 | 3.1 | 3.17 | 2.29 | 2.67 | 2.42 | 32.09 |