Bristow, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 36.7 °F (low) to 60.9 °F (high). Annual precipitation averages 24.2 Inches. Bristow 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 | 10.4 °F | 32.5 °F | 0.39 in. |
| February | 13.9 °F | 37.3 °F | 0.6 in. |
| March | 24.2 °F | 48.9 °F | 1.07 in. |
| April | 35.2 °F | 60.2 °F | 2.96 in. |
| May | 47.0 °F | 71.3 °F | 3.8 in. |
| June | 58.0 °F | 81.3 °F | 3.45 in. |
| July | 63.4 °F | 88.1 °F | 2.98 in. |
| August | 61.1 °F | 85.5 °F | 3.17 in. |
| September | 51.3 °F | 78.0 °F | 2.48 in. |
| October | 37.5 °F | 63.4 °F | 2.03 in. |
| November | 24.5 °F | 48.1 °F | 0.76 in. |
| December | 14.0 °F | 35.6 °F | 0.51 in. |
| Annual | 36.7 °F | 60.9 °F | 24.2 in. |
| 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 : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |