Attica, Kansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.7 °C (low) to 21 °C (high). Annual precipitation averages 806.7 Millimeters. Attica is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.2 °C | 7.6 °C | 22.35 mm |
| February | -3.5 °C | 9.8 °C | 28.96 mm |
| March | 1.6 °C | 15.4 °C | 58.42 mm |
| April | 6.5 °C | 20.4 °C | 70.36 mm |
| May | 12.8 °C | 25.7 °C | 114.05 mm |
| June | 18.3 °C | 31.4 °C | 120.9 mm |
| July | 20.8 °C | 34.2 °C | 87.12 mm |
| August | 19.9 °C | 33.2 °C | 93.73 mm |
| September | 15.3 °C | 28.9 °C | 66.04 mm |
| October | 8.1 °C | 22.2 °C | 76.45 mm |
| November | 1.3 °C | 14.7 °C | 35.56 mm |
| December | -3.9 °C | 8.2 °C | 32.77 mm |
| Annual | 7.7 °C | 21 °C | 806.71 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |