Paw Paw, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 38 °F (low) to 58.2 °F (high). Annual precipitation averages 37.1 Inches. Paw Paw is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 12.3 °F | 28.6 °F | 1.58 in. |
| February | 16.0 °F | 33.1 °F | 1.7 in. |
| March | 25.9 °F | 45.5 °F | 2.24 in. |
| April | 36.3 °F | 59.0 °F | 3.48 in. |
| May | 48.2 °F | 70.7 °F | 4.81 in. |
| June | 58.1 °F | 79.6 °F | 4.74 in. |
| July | 61.6 °F | 82.5 °F | 3.98 in. |
| August | 59.3 °F | 80.6 °F | 3.79 in. |
| September | 51.2 °F | 75.1 °F | 3.55 in. |
| October | 39.5 °F | 62.2 °F | 2.91 in. |
| November | 28.8 °F | 47.0 °F | 2.41 in. |
| December | 18.4 °F | 34.1 °F | 1.86 in. |
| Annual | 38 °F | 58.2 °F | 37.05 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°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 |