Franklin, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3.7 °C (low) to 18.1 °C (high). Annual precipitation averages 648.5 Millimeters. Franklin is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.9 °C | 3.5 °C | 12.19 mm |
| February | -8.3 °C | 5.8 °C | 18.29 mm |
| March | -3 °C | 12.2 °C | 35.81 mm |
| April | 2.6 °C | 17.9 °C | 61.21 mm |
| May | 9.2 °C | 23.4 °C | 108.2 mm |
| June | 15.4 °C | 29.4 °C | 94.74 mm |
| July | 18.3 °C | 32.2 °C | 99.06 mm |
| August | 16.9 °C | 30.8 °C | 79.25 mm |
| September | 11.4 °C | 26.8 °C | 45.72 mm |
| October | 3.7 °C | 19.4 °C | 49.28 mm |
| November | -3.4 °C | 11.4 °C | 25.91 mm |
| December | -8.4 °C | 4.7 °C | 18.8 mm |
| Annual | 3.7 °C | 18.1 °C | 648.46 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 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 | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |