Monee, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.3 °F (low) to 59.5 °F (high). Annual precipitation averages 41.1 Inches. Monee is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.6 °F | 31.7 °F | 2.3 in. |
| February | 19.4 °F | 35.7 °F | 2.09 in. |
| March | 28.7 °F | 46.7 °F | 2.41 in. |
| April | 39.4 °F | 59.2 °F | 3.86 in. |
| May | 50.0 °F | 70.1 °F | 4.67 in. |
| June | 59.8 °F | 80.1 °F | 4.86 in. |
| July | 64.8 °F | 84.2 °F | 4.65 in. |
| August | 63.0 °F | 82.2 °F | 4.26 in. |
| September | 55.5 °F | 75.7 °F | 3.42 in. |
| October | 43.2 °F | 62.7 °F | 3.53 in. |
| November | 32.7 °F | 49.0 °F | 2.78 in. |
| December | 22.1 °F | 36.6 °F | 2.29 in. |
| Annual | 41.3 °F | 59.5 °F | 41.12 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |