Warsaw, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.9 °F (low) to 66.9 °F (high). Annual precipitation averages 43.9 Inches. Warsaw is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.8 °F | 41.6 °F | 1.89 in. |
| February | 24.3 °F | 46.8 °F | 2.15 in. |
| March | 33.6 °F | 57.0 °F | 3.07 in. |
| April | 43.3 °F | 67.8 °F | 4.62 in. |
| May | 54.4 °F | 75.9 °F | 5.5 in. |
| June | 64.1 °F | 84.3 °F | 4.9 in. |
| July | 68.3 °F | 89.2 °F | 4.56 in. |
| August | 66.3 °F | 88.4 °F | 4.0 in. |
| September | 57.6 °F | 80.4 °F | 4.35 in. |
| October | 45.4 °F | 69.7 °F | 3.38 in. |
| November | 34.6 °F | 56.5 °F | 3.17 in. |
| December | 25.8 °F | 45.5 °F | 2.26 in. |
| Annual | 44.9 °F | 66.9 °F | 43.85 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |