| 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 |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| 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 48301 - Bloomfield Hills, MI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 16 | 18 | 27 | 37 | 48 | 57 | 62 | 60 | 52 | 41 | 32 | 22 | 39 |
| Avg Max Temp (°F) | 31 | 34 | 45 | 58 | 70 | 79 | 83 | 81 | 74 | 61 | 47 | 35 | 58 |
| Avg Precip (In.) | 1.73 | 1.62 | 2.37 | 2.96 | 2.8 | 3.29 | 2.93 | 3.19 | 3.11 | 2.48 | 2.65 | 2.33 | 31.47 |