Warren, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 31.9 °F (low) to 51.8 °F (high). Annual precipitation averages 50.7 Inches. Warren is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 7.2 °F | 25.2 °F | 3.32 in. |
| February | 8.1 °F | 28.3 °F | 2.78 in. |
| March | 17.1 °F | 36.8 °F | 3.6 in. |
| April | 29.3 °F | 50.3 °F | 4.09 in. |
| May | 41.5 °F | 63.6 °F | 4.14 in. |
| June | 50.1 °F | 71.5 °F | 5.38 in. |
| July | 54.9 °F | 76.3 °F | 5.35 in. |
| August | 53.1 °F | 74.7 °F | 4.76 in. |
| September | 45.7 °F | 67.5 °F | 4.12 in. |
| October | 35.4 °F | 54.5 °F | 5.24 in. |
| November | 25.4 °F | 41.8 °F | 3.67 in. |
| December | 14.7 °F | 30.9 °F | 4.2 in. |
| Annual | 31.9 °F | 51.8 °F | 50.65 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |