| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 71g - Eastern Highland Rim |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 37150 - Red Boiling Springs, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 26 | 29 | 37 | 45 | 54 | 62 | 66 | 64 | 57 | 46 | 37 | 30 | 46 |
| Avg Max Temp (°F) | 46 | 51 | 61 | 70 | 78 | 85 | 88 | 88 | 82 | 72 | 60 | 50 | 69 |
| Avg Precip (In.) | 4.51 | 4.12 | 5.64 | 4.15 | 5.25 | 4.78 | 4.55 | 4.01 | 4.14 | 3.33 | 4.5 | 5.33 | 54.31 |