Pawcatuck, Connecticut has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 42.7 °F (low) to 59.3 °F (high). Annual precipitation averages 47.7 Inches. Pawcatuck is located in USDA Plant Hardiness Zone 7a. 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 | 21.7 °F | 38.3 °F | 3.9 in. |
| February | 23.1 °F | 40.0 °F | 3.39 in. |
| March | 30.1 °F | 46.1 °F | 4.94 in. |
| April | 39.2 °F | 55.7 °F | 4.51 in. |
| May | 48.8 °F | 65.0 °F | 3.5 in. |
| June | 58.3 °F | 74.0 °F | 3.76 in. |
| July | 64.2 °F | 79.9 °F | 3.03 in. |
| August | 63.0 °F | 79.0 °F | 3.66 in. |
| September | 56.0 °F | 73.3 °F | 3.58 in. |
| October | 45.2 °F | 62.9 °F | 4.67 in. |
| November | 35.4 °F | 53.0 °F | 4.0 in. |
| December | 27.8 °F | 44.0 °F | 4.74 in. |
| Annual | 42.7 °F | 59.3 °F | 47.68 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 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |