| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F |
| 2012 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 74b - Loess Plains |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 38343 - Humboldt, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 27 | 30 | 39 | 47 | 57 | 65 | 69 | 67 | 59 | 47 | 39 | 30 | 48 |
| Avg Max Temp (°F) | 45 | 51 | 61 | 70 | 79 | 86 | 90 | 89 | 83 | 73 | 60 | 50 | 70 |
| Avg Precip (In.) | 4.2 | 4.24 | 5.12 | 4.92 | 5.48 | 4.64 | 4.56 | 3.05 | 3.96 | 3.4 | 4.97 | 5.48 | 54.03 |