Camden, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 3.3 °C (low) to 12.3 °C (high). Annual precipitation averages 1339.1 Millimeters. Camden is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.8 °C | -0.4 °C | 112.52 mm |
| February | -8.1 °C | 0.6 °C | 97.28 mm |
| March | -4.3 °C | 4.6 °C | 117.09 mm |
| April | 1.2 °C | 10.6 °C | 122.68 mm |
| May | 6.3 °C | 16.2 °C | 97.28 mm |
| June | 11.3 °C | 21.1 °C | 114.05 mm |
| July | 14.6 °C | 24.3 °C | 81.79 mm |
| August | 14.2 °C | 24.2 °C | 81.53 mm |
| September | 10.8 °C | 20.5 °C | 112.78 mm |
| October | 5.7 °C | 14.2 °C | 145.54 mm |
| November | 0.8 °C | 8.4 °C | 127 mm |
| December | -4.7 °C | 2.9 °C | 129.54 mm |
| Annual | 3.3 °C | 12.3 °C | 1339.08 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |