Monument, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3.1 °C (low) to 19.2 °C (high). Annual precipitation averages 513.6 Millimeters. Monument is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.9 °C | 6.1 °C | 8.64 mm |
| February | -7.7 °C | 7.8 °C | 12.45 mm |
| March | -3.4 °C | 13.5 °C | 25.4 mm |
| April | 1.4 °C | 18.2 °C | 45.72 mm |
| May | 7.8 °C | 23.7 °C | 74.68 mm |
| June | 13.9 °C | 30.2 °C | 67.56 mm |
| July | 16.9 °C | 33.1 °C | 95.25 mm |
| August | 15.7 °C | 31.6 °C | 74.42 mm |
| September | 10.6 °C | 27.4 °C | 40.89 mm |
| October | 3.1 °C | 19.9 °C | 38.86 mm |
| November | -3.6 °C | 12.4 °C | 16.51 mm |
| December | -8.2 °C | 6.6 °C | 13.21 mm |
| Annual | 3.1 °C | 19.2 °C | 513.59 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |