Monroe, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3.8 °C (low) to 16.4 °C (high). Annual precipitation averages 717.8 Millimeters. Monroe 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 | -10.6 °C | 0.5 °C | 16 mm |
| February | -8.3 °C | 3.1 °C | 17.78 mm |
| March | -2.8 °C | 9.9 °C | 40.64 mm |
| April | 3.1 °C | 16.7 °C | 73.91 mm |
| May | 9.7 °C | 22.6 °C | 117.35 mm |
| June | 15.7 °C | 28.1 °C | 115.06 mm |
| July | 18 °C | 30.3 °C | 81.79 mm |
| August | 16.6 °C | 28.9 °C | 83.57 mm |
| September | 11.4 °C | 25.5 °C | 63.75 mm |
| October | 4.1 °C | 18.3 °C | 54.36 mm |
| November | -3.1 °C | 9.7 °C | 31.75 mm |
| December | -8.6 °C | 2.6 °C | 21.84 mm |
| Annual | 3.8 °C | 16.4 °C | 717.8 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |