Matteson, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.1 °F (low) to 59.6 °F (high). Annual precipitation averages 40.5 Inches. Matteson 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 | 31.8 °F | 2.27 in. |
| February | 19.4 °F | 35.7 °F | 2.09 in. |
| March | 28.7 °F | 46.7 °F | 2.41 in. |
| April | 39.3 °F | 59.6 °F | 3.91 in. |
| May | 49.9 °F | 70.4 °F | 4.56 in. |
| June | 59.8 °F | 80.3 °F | 4.7 in. |
| July | 64.3 °F | 84.1 °F | 4.55 in. |
| August | 62.7 °F | 82.3 °F | 4.16 in. |
| September | 55.1 °F | 75.9 °F | 3.28 in. |
| October | 43.0 °F | 63.0 °F | 3.5 in. |
| November | 32.3 °F | 49.0 °F | 2.76 in. |
| December | 22.3 °F | 36.8 °F | 2.29 in. |
| Annual | 41.1 °F | 59.6 °F | 40.48 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 |