Arapahoe, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 37.8 °F (low) to 65.1 °F (high). Annual precipitation averages 23.6 Inches. Arapahoe is located in USDA Plant Hardiness Zone 5b. 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 | 14.7 °F | 39.5 °F | 0.44 in. |
| February | 17.3 °F | 43.4 °F | 0.66 in. |
| March | 26.1 °F | 54.8 °F | 1.22 in. |
| April | 35.7 °F | 64.5 °F | 2.31 in. |
| May | 47.3 °F | 74.0 °F | 3.61 in. |
| June | 58.4 °F | 84.9 °F | 3.46 in. |
| July | 63.5 °F | 89.6 °F | 3.72 in. |
| August | 60.9 °F | 87.3 °F | 3.1 in. |
| September | 51.1 °F | 80.8 °F | 1.76 in. |
| October | 37.1 °F | 67.7 °F | 1.86 in. |
| November | 24.6 °F | 53.1 °F | 0.88 in. |
| December | 16.3 °F | 41.3 °F | 0.62 in. |
| Annual | 37.8 °F | 65.1 °F | 23.64 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 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 |