Parker, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 55.3 °F (low) to 76 °F (high). Annual precipitation averages 41.2 Inches. Parker is located in USDA Plant Hardiness Zone 8b. 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 | 34.9 °F | 55.7 °F | 2.67 in. |
| February | 38.5 °F | 60.0 °F | 2.97 in. |
| March | 46.4 °F | 67.5 °F | 3.72 in. |
| April | 54.1 °F | 75.3 °F | 3.64 in. |
| May | 63.4 °F | 82.6 °F | 5.06 in. |
| June | 71.5 °F | 90.4 °F | 3.95 in. |
| July | 74.8 °F | 94.7 °F | 2.14 in. |
| August | 74.4 °F | 95.2 °F | 2.29 in. |
| September | 67.2 °F | 88.3 °F | 3.15 in. |
| October | 55.8 °F | 78.4 °F | 4.72 in. |
| November | 45.4 °F | 66.4 °F | 3.34 in. |
| December | 37.1 °F | 57.6 °F | 3.54 in. |
| Annual | 55.3 °F | 76 °F | 41.19 in. |
| 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 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |