Pine Island, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 14.3 °C (low) to 26.4 °C (high). Annual precipitation averages 1189 Millimeters. Pine Island is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.8 °C | 16.7 °C | 91.95 mm |
| February | 6.9 °C | 18.7 °C | 74.93 mm |
| March | 10.4 °C | 22.3 °C | 86.11 mm |
| April | 14.1 °C | 26.1 °C | 88.9 mm |
| May | 18.6 °C | 29.8 °C | 135.13 mm |
| June | 21.9 °C | 32.9 °C | 113.54 mm |
| July | 22.8 °C | 34.4 °C | 71.88 mm |
| August | 22.6 °C | 35.2 °C | 94.74 mm |
| September | 20.1 °C | 32.4 °C | 105.41 mm |
| October | 14.5 °C | 27.9 °C | 123.19 mm |
| November | 9.4 °C | 22.1 °C | 109.73 mm |
| December | 5.7 °C | 17.7 °C | 93.47 mm |
| Annual | 14.3 °C | 26.4 °C | 1188.98 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 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 |