Waggoner, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.7 °F (low) to 63.7 °F (high). Annual precipitation averages 40.1 Inches. Waggoner 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.9 °F | 35.7 °F | 2.35 in. |
| February | 23.4 °F | 40.9 °F | 2.07 in. |
| March | 32.5 °F | 52.2 °F | 2.86 in. |
| April | 42.9 °F | 64.9 °F | 4.44 in. |
| May | 54.0 °F | 74.9 °F | 4.8 in. |
| June | 63.0 °F | 83.3 °F | 4.44 in. |
| July | 66.1 °F | 86.3 °F | 3.69 in. |
| August | 63.9 °F | 85.2 °F | 3.3 in. |
| September | 55.6 °F | 79.9 °F | 3.24 in. |
| October | 44.3 °F | 67.7 °F | 3.29 in. |
| November | 34.0 °F | 52.6 °F | 3.26 in. |
| December | 25.2 °F | 40.7 °F | 2.35 in. |
| Annual | 43.7 °F | 63.7 °F | 40.09 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |