Strawn, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 53.2 °F (low) to 77.5 °F (high). Annual precipitation averages 32 Inches. Strawn is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 33.0 °F | 58.2 °F | 1.64 in. |
| February | 36.3 °F | 61.6 °F | 2.12 in. |
| March | 44.3 °F | 69.4 °F | 2.8 in. |
| April | 52.6 °F | 77.8 °F | 2.64 in. |
| May | 61.6 °F | 84.3 °F | 4.3 in. |
| June | 69.6 °F | 91.7 °F | 3.63 in. |
| July | 73.1 °F | 96.0 °F | 2.11 in. |
| August | 72.4 °F | 96.1 °F | 2.52 in. |
| September | 64.9 °F | 89.1 °F | 3.13 in. |
| October | 53.7 °F | 79.1 °F | 3.39 in. |
| November | 42.8 °F | 67.5 °F | 1.95 in. |
| December | 34.2 °F | 58.6 °F | 1.8 in. |
| Annual | 53.2 °F | 77.5 °F | 32.03 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |