| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F | |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F | |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F | |
| Average First Frost Date: | Nov. 21 - Nov. 30 | |
| Average Last Frost Date: | Mar. 1 - Mar. 10 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 32a - Northern Blackland Prairie | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 76537 - Jarrell, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 35 | 39 | 47 | 54 | 63 | 69 | 72 | 71 | 66 | 56 | 46 | 38 | 55 |
| Avg Max Temp (°F) | 60 | 65 | 72 | 79 | 85 | 91 | 96 | 96 | 90 | 81 | 69 | 62 | 79 |
| Avg Precip (In.) | 2.05 | 2.63 | 2.52 | 3.08 | 4.75 | 3.87 | 1.58 | 1.98 | 3.49 | 3.76 | 3.11 | 2.54 | 35.37 |