| 2023 Hardiness Zone: | Zone 9b: 25°F to 30°F | |
| 2012 Hardiness Zone: | Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F | |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F | |
| Average First Frost Date: | Jan. 21 - Jan. 31 | |
| Average Last Frost Date: | Jan. 21 - Jan. 31 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 34a - Northern Humid Gulf Coastal Prairies | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 77414 - Bay City, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 45 | 48 | 55 | 60 | 68 | 73 | 75 | 74 | 70 | 61 | 54 | 46 | 61 |
| Avg Max Temp (°F) | 64 | 68 | 74 | 80 | 85 | 90 | 93 | 93 | 90 | 83 | 74 | 67 | 80 |
| Avg Precip (In.) | 3.82 | 2.9 | 2.92 | 3.12 | 4.85 | 4.7 | 3.8 | 3.55 | 5.72 | 4.99 | 3.97 | 3.27 | 47.61 |