Guy, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.9 °C (low) to 21.9 °C (high). Annual precipitation averages 1339.9 Millimeters. Guy 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. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.3 °C | 9.6 °C | 92.2 mm |
| February | 1.2 °C | 11.8 °C | 99.57 mm |
| March | 5.4 °C | 16.6 °C | 131.32 mm |
| April | 10.3 °C | 22 °C | 137.16 mm |
| May | 15.4 °C | 26.6 °C | 140.46 mm |
| June | 19.9 °C | 30.9 °C | 91.95 mm |
| July | 21.7 °C | 33.2 °C | 97.79 mm |
| August | 21.2 °C | 33 °C | 102.87 mm |
| September | 17.5 °C | 29.3 °C | 89.15 mm |
| October | 11.5 °C | 22.8 °C | 107.19 mm |
| November | 5.8 °C | 15.8 °C | 128.27 mm |
| December | 1.4 °C | 10.6 °C | 121.92 mm |
| Annual | 10.9 °C | 21.9 °C | 1339.85 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |