McCamey, Texas has a Hot Semi-Arid Climate climate (Köppen classification: BSh). Average annual temperatures range from 11.6 °C (low) to 26.9 °C (high). Annual precipitation averages 349.5 Millimeters. McCamey is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.2 °C | 16.1 °C | 16 mm |
| February | 2.5 °C | 18.9 °C | 12.45 mm |
| March | 6.7 °C | 23.4 °C | 15.75 mm |
| April | 10.8 °C | 27.9 °C | 19.3 mm |
| May | 16.6 °C | 32.1 °C | 37.59 mm |
| June | 21.3 °C | 35.6 °C | 47.5 mm |
| July | 22.5 °C | 36.1 °C | 35.05 mm |
| August | 22.1 °C | 35.7 °C | 45.72 mm |
| September | 18.2 °C | 32 °C | 48.01 mm |
| October | 12.3 °C | 27.4 °C | 29.72 mm |
| November | 5.2 °C | 20.8 °C | 26.42 mm |
| December | 0.9 °C | 16.3 °C | 16 mm |
| Annual | 11.6 °C | 26.9 °C | 349.51 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSh - Hot Semi-Arid Climate |