San Felipe, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 14.6 °C (low) to 26.5 °C (high). Annual precipitation averages 1169.2 Millimeters. San Felipe is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 11 - Dec. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.3 °C | 17 °C | 95.5 mm |
| February | 7.3 °C | 19.1 °C | 67.06 mm |
| March | 10.9 °C | 22.7 °C | 94.74 mm |
| April | 14.4 °C | 26.3 °C | 95.76 mm |
| May | 18.9 °C | 30 °C | 112.01 mm |
| June | 22.1 °C | 32.8 °C | 113.28 mm |
| July | 22.8 °C | 34.4 °C | 70.1 mm |
| August | 22.7 °C | 35.3 °C | 99.31 mm |
| September | 20.3 °C | 32.4 °C | 108.46 mm |
| October | 14.8 °C | 28 °C | 120.4 mm |
| November | 9.7 °C | 22.3 °C | 100.84 mm |
| December | 6.2 °C | 18.1 °C | 91.69 mm |
| Annual | 14.6 °C | 26.5 °C | 1169.15 mm |
| Average First Frost Date | Dec. 11 - Dec. 20 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |