Literberry, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.4 °F (low) to 63.2 °F (high). Annual precipitation averages 39.5 Inches. Literberry 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 | 18.2 °F | 35.1 °F | 2.1 in. |
| February | 21.5 °F | 40.0 °F | 1.89 in. |
| March | 30.6 °F | 51.6 °F | 2.7 in. |
| April | 41.2 °F | 64.3 °F | 4.02 in. |
| May | 52.8 °F | 74.3 °F | 4.84 in. |
| June | 62.1 °F | 83.0 °F | 4.67 in. |
| July | 65.4 °F | 86.0 °F | 3.99 in. |
| August | 63.0 °F | 84.6 °F | 3.54 in. |
| September | 54.6 °F | 79.4 °F | 3.45 in. |
| October | 43.0 °F | 67.0 °F | 3.09 in. |
| November | 32.4 °F | 52.3 °F | 2.97 in. |
| December | 23.6 °F | 40.3 °F | 2.21 in. |
| Annual | 42.4 °F | 63.2 °F | 39.47 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 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |