Ludlow, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.3 °F (low) to 55.4 °F (high). Annual precipitation averages 48.9 Inches. Ludlow is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 8.5 °F | 29.5 °F | 3.62 in. |
| February | 8.8 °F | 32.5 °F | 2.89 in. |
| March | 18.0 °F | 40.7 °F | 3.96 in. |
| April | 29.6 °F | 53.6 °F | 3.93 in. |
| May | 41.3 °F | 67.1 °F | 4.12 in. |
| June | 51.0 °F | 74.7 °F | 4.97 in. |
| July | 55.1 °F | 79.5 °F | 4.68 in. |
| August | 53.1 °F | 77.9 °F | 3.97 in. |
| September | 45.2 °F | 71.2 °F | 3.99 in. |
| October | 34.6 °F | 57.7 °F | 4.81 in. |
| November | 25.9 °F | 45.5 °F | 3.78 in. |
| December | 16.4 °F | 34.5 °F | 4.16 in. |
| Annual | 32.3 °F | 55.4 °F | 48.88 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| 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 |