Camden, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.6 °F (low) to 62.6 °F (high). Annual precipitation averages 39.4 Inches. Camden 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 17.5 °F | 34.4 °F | 1.93 in. |
| February | 21.2 °F | 39.3 °F | 1.95 in. |
| March | 31.0 °F | 51.1 °F | 2.55 in. |
| April | 41.8 °F | 63.7 °F | 3.99 in. |
| May | 53.0 °F | 73.7 °F | 5.06 in. |
| June | 62.6 °F | 82.5 °F | 4.8 in. |
| July | 65.9 °F | 86.1 °F | 3.93 in. |
| August | 63.7 °F | 84.6 °F | 3.72 in. |
| September | 55.1 °F | 78.6 °F | 3.52 in. |
| October | 43.7 °F | 66.2 °F | 3.15 in. |
| November | 32.8 °F | 51.9 °F | 2.71 in. |
| December | 23.2 °F | 39.3 °F | 2.07 in. |
| Annual | 42.6 °F | 62.6 °F | 39.38 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| 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 |