Scottsbluff, Nebraska has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 1.7 °C (low) to 17.5 °C (high). Annual precipitation averages 377.7 Millimeters. Scottsbluff is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.3 °C | 4.6 °C | 6.86 mm |
| February | -8.2 °C | 6.1 °C | 11.18 mm |
| March | -4 °C | 11.6 °C | 20.32 mm |
| April | 0.2 °C | 15.8 °C | 39.62 mm |
| May | 6.2 °C | 21.4 °C | 76.71 mm |
| June | 11.8 °C | 28.1 °C | 67.82 mm |
| July | 15.3 °C | 32 °C | 39.37 mm |
| August | 13.8 °C | 30.9 °C | 31.24 mm |
| September | 8.3 °C | 26.1 °C | 32.77 mm |
| October | 0.9 °C | 17.9 °C | 29.97 mm |
| November | -5.2 °C | 10.6 °C | 12.7 mm |
| December | -9.8 °C | 4.9 °C | 9.14 mm |
| Annual | 1.7 °C | 17.5 °C | 377.7 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |