Last updated: June 24, 2025
In Heilwood, United States, the average temperature in December hovers around 1°C (34°F). While the mercury can dip as low as -16°C (4°F), it can occasionally rise to a balmy 18°C (64°F). Expect about 108 mm (4.3 in) of precipitation spread over 14 days, coupled with an average humidity of 88%. Whether you're braving the chill or enjoying the brief warm spells, be prepared for a mix of seasonal elements!
In December in Heilwood, the average temperature is 1°C (34°F), with maximums reaching 18°C (64°F) and minimums dropping as low as -16°C (4°F). Be prepared for a significant range in temperatures during your travels, and pack accordingly to enjoy all that Heilwood has to offer.
In Heilwood in December, the total precipitation amount is 108 mm (4.3 in) spread over 14 days.
In Heilwood in December humidity is 88%. With an average temperature of 1°C (34°F), this humidity feels like a chilling embrace, making travel feel damp and brisk, where every breath carries a crisp bite, and the air clings to your skin, urging you to seek warmth and comfort.
In Heilwood 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 Heilwood, you can visit Hourly UV Index in Heilwood.
UV Risk Categories
Weather in Heilwood varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Heilwood, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (29°F) | 92 mm (3.6 inches) | 89% | moderate |
| February Weather | 0°C (33°F) | 127 mm (5.0 inches) | 90% | moderate |
| March Weather | 4°C (39°F) | 109 mm (4.3 inches) | 89% | high |
| April Weather | 10°C (49°F) | 130 mm (5.1 inches) | 88% | very high |
| May Weather | 16°C (60°F) | 151 mm (5.9 inches) | 80% | very high |
| June Weather | 20°C (68°F) | 130 mm (5.1 inches) | 79% | very high |
| July Weather | 23°C (73°F) | 128 mm (5.0 inches) | 74% | very high |
| August Weather | 22°C (71°F) | 91 mm (3.6 inches) | 64% | very high |
| September Weather | 18°C (65°F) | 127 mm (5.0 inches) | 67% | very high |
| October Weather | 13°C (55°F) | 114 mm (4.5 inches) | 81% | high |
| November Weather | 4°C (40°F) | 91 mm (3.6 inches) | 89% | moderate |
| December Weather | 1°C (34°F) | 108 mm (4.3 inches) | 88% | low |