Cayuga, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6 °C (low) to 17.3 °C (high). Annual precipitation averages 1061.2 Millimeters. Cayuga 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 | -7.2 °C | 1.7 °C | 66.8 mm |
| February | -5.6 °C | 4.2 °C | 57.15 mm |
| March | -0.3 °C | 10.6 °C | 76.45 mm |
| April | 5.5 °C | 18.1 °C | 109.47 mm |
| May | 11.7 °C | 23.9 °C | 117.6 mm |
| June | 16.8 °C | 28.4 °C | 125.48 mm |
| July | 18.3 °C | 29.9 °C | 107.7 mm |
| August | 17 °C | 29.2 °C | 83.57 mm |
| September | 12.7 °C | 26.5 °C | 76.45 mm |
| October | 6.5 °C | 19.7 °C | 86.87 mm |
| November | 0.8 °C | 11.1 °C | 86.36 mm |
| December | -4.1 °C | 4.4 °C | 67.31 mm |
| Annual | 6 °C | 17.3 °C | 1061.21 mm |
| 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 : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |