Fishers, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.1 °C (low) to 16.6 °C (high). Annual precipitation averages 1116.6 Millimeters. Fishers 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 | -6.9 °C | 1.8 °C | 74.93 mm |
| February | -5.4 °C | 4.1 °C | 61.98 mm |
| March | -0.7 °C | 10 °C | 85.85 mm |
| April | 5.3 °C | 17.2 °C | 111.51 mm |
| May | 11.6 °C | 22.7 °C | 124.46 mm |
| June | 16.5 °C | 27.3 °C | 130.56 mm |
| July | 18.2 °C | 29 °C | 109.22 mm |
| August | 17.3 °C | 28.3 °C | 84.33 mm |
| September | 13 °C | 25.3 °C | 86.61 mm |
| October | 6.7 °C | 18.6 °C | 82.8 mm |
| November | 0.9 °C | 10.8 °C | 86.87 mm |
| December | -3.9 °C | 4.2 °C | 77.47 mm |
| Annual | 6.1 °C | 16.6 °C | 1116.59 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 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |