| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F | |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 57e - Saginaw Lake Plain | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 48638 - Saginaw, MI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 16 | 17 | 26 | 36 | 47 | 57 | 61 | 59 | 51 | 41 | 32 | 22 | 39 |
| Avg Max Temp (°F) | 30 | 33 | 44 | 57 | 71 | 80 | 84 | 81 | 74 | 61 | 47 | 35 | 58 |
| Avg Precip (In.) | 1.63 | 1.31 | 2.21 | 2.84 | 2.82 | 3.66 | 2.43 | 3.37 | 3.97 | 2.69 | 2.66 | 1.97 | 31.56 |