Last updated: June 24, 2025
In December, the average temperature in Horseheads, United States hovers around -1°C (31°F). Expect minimums plunging to -19°C (-2°F) and maximums peaking at 17°C (62°F). With precipitation totaling 88 mm (3.5 in) over 12 days, and an average humidity of 86%, it's a month where warmth is a rarity, making it essential to bundle up!
In December in Horseheads, the average temperature is -1°C (31°F), with maximums reaching 17°C (62°F) and minimums dropping as low as -19°C (-2°F). Visitors should be prepared for a wide range of temperatures, making layering essential for comfort during their travels.
In Horseheads in December, the precipitation amount is 88 mm (3.5 in) over a span of 12 days.
In Horseheads in December humidity is 86%. With an average temperature of -1°C (31°F), this humidity feels like an eerie chill enveloping you, making travel uncomfortable as the damp air bites into your skin and the cold seeps through even the warmest of clothes, creating an atmosphere that is heavy and uninviting.
In Horseheads in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Horseheads, you can visit Hourly UV Index in Horseheads.
UV Risk Categories
Weather in Horseheads varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Horseheads, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (26°F) | 71 mm (2.8 inches) | 90% | moderate |
| February Weather | -2°C (28°F) | 87 mm (3.4 inches) | 90% | moderate |
| March Weather | 1°C (35°F) | 82 mm (3.2 inches) | 87% | high |
| April Weather | 8°C (46°F) | 118 mm (4.7 inches) | 88% | very high |
| May Weather | 14°C (58°F) | 128 mm (5.0 inches) | 82% | very high |
| June Weather | 19°C (66°F) | 99 mm (3.9 inches) | 79% | very high |
| July Weather | 22°C (72°F) | 137 mm (5.4 inches) | 78% | very high |
| August Weather | 21°C (70°F) | 95 mm (3.8 inches) | 76% | very high |
| September Weather | 17°C (63°F) | 93 mm (3.7 inches) | 78% | very high |
| October Weather | 11°C (53°F) | 140 mm (5.5 inches) | 84% | high |
| November Weather | 3°C (38°F) | 84 mm (3.3 inches) | 89% | moderate |
| December Weather | -1°C (31°F) | 88 mm (3.5 inches) | 86% | low |