| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| 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: | 57a - Maumee Lake Plains |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 48082 - Saint Clair Shores, MI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 20 | 28 | 37 | 48 | 58 | 63 | 61 | 54 | 43 | 34 | 24 | 41 |
| Avg Max Temp (°F) | 31 | 34 | 43 | 55 | 68 | 78 | 82 | 80 | 72 | 60 | 47 | 36 | 57 |
| Avg Precip (In.) | 1.9 | 1.81 | 2.39 | 3.05 | 2.87 | 3.19 | 3.43 | 3.22 | 3.29 | 2.26 | 2.68 | 2.52 | 32.6 |