Americus, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.3 °F (low) to 66.4 °F (high). Annual precipitation averages 36.5 Inches. Americus is located in USDA Plant Hardiness Zone 6b. 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 | 19.7 °F | 40.6 °F | 0.85 in. |
| February | 23.3 °F | 45.6 °F | 1.35 in. |
| March | 32.9 °F | 56.6 °F | 2.39 in. |
| April | 42.9 °F | 66.4 °F | 3.47 in. |
| May | 54.4 °F | 75.2 °F | 5.28 in. |
| June | 64.1 °F | 84.7 °F | 4.82 in. |
| July | 68.3 °F | 89.7 °F | 4.61 in. |
| August | 66.4 °F | 88.8 °F | 3.96 in. |
| September | 57.7 °F | 80.8 °F | 3.52 in. |
| October | 44.8 °F | 69.0 °F | 2.83 in. |
| November | 33.4 °F | 55.7 °F | 1.93 in. |
| December | 23.7 °F | 43.9 °F | 1.45 in. |
| Annual | 44.3 °F | 66.4 °F | 36.46 in. |
| 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 6b : -5°F to 0°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 |