Bartley, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 37.2 °F (low) to 65.2 °F (high). Annual precipitation averages 22.5 Inches. Bartley 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.0 °F | 40.4 °F | 0.39 in. |
| February | 16.6 °F | 44.0 °F | 0.61 in. |
| March | 25.5 °F | 55.4 °F | 1.1 in. |
| April | 35.0 °F | 64.0 °F | 2.22 in. |
| May | 46.8 °F | 73.7 °F | 3.3 in. |
| June | 58.0 °F | 84.7 °F | 3.53 in. |
| July | 63.4 °F | 89.8 °F | 3.57 in. |
| August | 60.8 °F | 87.5 °F | 2.97 in. |
| September | 50.6 °F | 80.5 °F | 1.63 in. |
| October | 36.4 °F | 67.5 °F | 1.73 in. |
| November | 23.8 °F | 53.5 °F | 0.82 in. |
| December | 15.3 °F | 41.8 °F | 0.61 in. |
| Annual | 37.2 °F | 65.2 °F | 22.48 in. |
| 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 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |