Ragan, 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 17.1 °C (high). Annual precipitation averages 641.6 Millimeters. Ragan is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.2 °C | 2.7 °C | 10.92 mm |
| February | -7.3 °C | 5 °C | 16.76 mm |
| March | -2.8 °C | 11.4 °C | 35.81 mm |
| April | 2.9 °C | 16.8 °C | 61.21 mm |
| May | 8.9 °C | 22.1 °C | 107.7 mm |
| June | 15 °C | 28.1 °C | 92.96 mm |
| July | 17.5 °C | 30.7 °C | 100.84 mm |
| August | 16.3 °C | 29.4 °C | 75.44 mm |
| September | 11.2 °C | 25.7 °C | 48.26 mm |
| October | 3.9 °C | 18.4 °C | 49.28 mm |
| November | -3.4 °C | 10.7 °C | 24.38 mm |
| December | -8.2 °C | 4.1 °C | 18.03 mm |
| Annual | 3.7 °C | 17.1 °C | 641.59 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 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 | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |