Troy, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.3 °F (low) to 63.7 °F (high). Annual precipitation averages 37 Inches. Troy is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.8 °F | 35.8 °F | 0.93 in. |
| February | 20.8 °F | 41.4 °F | 1.32 in. |
| March | 30.6 °F | 53.4 °F | 2.2 in. |
| April | 41.2 °F | 64.7 °F | 3.7 in. |
| May | 52.7 °F | 74.2 °F | 5.12 in. |
| June | 62.7 °F | 83.2 °F | 4.79 in. |
| July | 66.4 °F | 86.9 °F | 5.1 in. |
| August | 64.5 °F | 86.0 °F | 3.88 in. |
| September | 55.3 °F | 78.7 °F | 3.47 in. |
| October | 43.7 °F | 67.2 °F | 3.06 in. |
| November | 31.5 °F | 52.6 °F | 1.91 in. |
| December | 21.8 °F | 40.0 °F | 1.5 in. |
| Annual | 42.3 °F | 63.7 °F | 36.98 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |