| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F | |
| 2012 Hardiness Zone: | Zone 9a: 20°F to 25°F | |
| 1990 Hardiness Zone: | Zone 9a: 20F to 25F | |
| 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: | 75a - Gulf Coast Flatwoods | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 151 - 180 days Over 86°F |
Annual Climate Data for ZIP Code 34428 - Crystal River, FL | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 46 | 47 | 53 | 57 | 64 | 70 | 72 | 72 | 70 | 62 | 54 | 48 | 60 |
| Avg Max Temp (°F) | 69 | 71 | 77 | 82 | 87 | 90 | 91 | 91 | 90 | 84 | 77 | 71 | 82 |
| Avg Precip (In.) | 3.62 | 3.11 | 4.2 | 2.7 | 3.21 | 6.45 | 7.47 | 7.8 | 6.28 | 2.57 | 2.34 | 2.71 | 52.44 |