Astor, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 59.1 °F (low) to 82.1 °F (high). Annual precipitation averages 55.3 Inches. Astor is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 44.2 °F | 69.2 °F | 3.13 in. |
| February | 46.9 °F | 72.2 °F | 2.47 in. |
| March | 50.4 °F | 76.7 °F | 3.17 in. |
| April | 56.7 °F | 82.9 °F | 2.87 in. |
| May | 62.8 °F | 88.0 °F | 3.9 in. |
| June | 69.8 °F | 91.0 °F | 8.15 in. |
| July | 71.4 °F | 92.5 °F | 7.6 in. |
| August | 72.3 °F | 91.9 °F | 8.41 in. |
| September | 70.4 °F | 89.0 °F | 7.16 in. |
| October | 62.6 °F | 83.7 °F | 3.77 in. |
| November | 53.7 °F | 76.2 °F | 2.09 in. |
| December | 48.1 °F | 71.3 °F | 2.58 in. |
| Annual | 59.1 °F | 82.1 °F | 55.3 in. |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |