| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F 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 48312 - Sterling Heights, MI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 20 | 28 | 38 | 49 | 58 | 63 | 62 | 54 | 43 | 34 | 24 | 41 |
| Avg Max Temp (°F) | 31 | 34 | 44 | 56 | 69 | 78 | 83 | 80 | 73 | 61 | 48 | 36 | 58 |
| Avg Precip (In.) | 1.92 | 1.77 | 2.48 | 3.1 | 2.88 | 3.21 | 3.33 | 3.19 | 3.26 | 2.28 | 2.68 | 2.49 | 32.6 |