Winslow, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 39.1 °F (low) to 60.8 °F (high). Annual precipitation averages 30.9 Inches. Winslow is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 12.6 °F | 31.6 °F | 0.67 in. |
| February | 16.5 °F | 35.9 °F | 0.91 in. |
| March | 26.9 °F | 48.9 °F | 1.66 in. |
| April | 37.9 °F | 61.7 °F | 3.21 in. |
| May | 50.0 °F | 72.2 °F | 4.54 in. |
| June | 61.0 °F | 82.4 °F | 4.88 in. |
| July | 64.8 °F | 85.7 °F | 3.26 in. |
| August | 62.2 °F | 83.6 °F | 3.82 in. |
| September | 52.7 °F | 77.5 °F | 3.21 in. |
| October | 40.0 °F | 64.7 °F | 2.25 in. |
| November | 27.3 °F | 49.1 °F | 1.35 in. |
| December | 17.2 °F | 35.7 °F | 1.12 in. |
| Annual | 39.1 °F | 60.8 °F | 30.88 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |