Whitingham, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.1 °C (low) to 11.9 °C (high). Annual precipitation averages 1444.8 Millimeters. Whitingham is located in USDA Plant Hardiness Zone 5b. 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 | -12.5 °C | -1.9 °C | 99.57 mm |
| February | -12.7 °C | -0.6 °C | 93.22 mm |
| March | -8.1 °C | 3.7 °C | 112.52 mm |
| April | -1.5 °C | 10.8 °C | 114.05 mm |
| May | 4.8 °C | 17.4 °C | 115.32 mm |
| June | 9.7 °C | 22.4 °C | 146.3 mm |
| July | 12.3 °C | 24.8 °C | 121.92 mm |
| August | 11.3 °C | 24.2 °C | 116.84 mm |
| September | 7.1 °C | 20.6 °C | 131.57 mm |
| October | 1.2 °C | 13.4 °C | 148.59 mm |
| November | -3.7 °C | 6.7 °C | 111.25 mm |
| December | -8.9 °C | 0.7 °C | 133.6 mm |
| Annual | -0.1 °C | 11.9 °C | 1444.75 mm |
| 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 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |