Last updated: June 24, 2025
In December, the average temperature in Watchtower, United States hovers around 1°C (33°F), where the climate can take you on a rollercoaster ride with minimums plunging to -20°C (-3°F) and peaking at a balmy 16°C (62°F). Expect 112 mm (4.4 in) of precipitation spread over 11 days, while the air remains comfortably humid at 80%. Perfect for cozy indoor activities or braving the chill!
In December in Watchtower, the average temperature is 1°C (33°F). The maximum can reach 16°C (62°F), while the minimum can drop as low as -20°C (-3°F). Pack warm clothing and be prepared for a mix of chilly days and mild afternoons if you plan to travel during this time.
In Watchtower in December, the precipitation amount is 112 mm (4.4 in) that occurs over the course of 11 days.
In Watchtower in December, humidity is 80%. With an average temperature of 1°C (33°F), this humidity feels like a damp chill that seeps into your bones, making travel outdoors an invigorating yet biting experience.
In Watchtower 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 Watchtower, you can visit Hourly UV Index in Watchtower.
UV Risk Categories
Weather in Watchtower varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Watchtower, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (29°F) | 79 mm (3.1 inches) | 84% | moderate |
| February Weather | 0°C (31°F) | 104 mm (4.1 inches) | 82% | moderate |
| March Weather | 3°C (37°F) | 96 mm (3.8 inches) | 81% | high |
| April Weather | 9°C (48°F) | 141 mm (5.5 inches) | 78% | very high |
| May Weather | 15°C (59°F) | 131 mm (5.1 inches) | 69% | very high |
| June Weather | 20°C (68°F) | 106 mm (4.2 inches) | 69% | very high |
| July Weather | 23°C (74°F) | 137 mm (5.4 inches) | 62% | very high |
| August Weather | 22°C (72°F) | 128 mm (5.0 inches) | 65% | very high |
| September Weather | 18°C (65°F) | 103 mm (4.1 inches) | 68% | very high |
| October Weather | 13°C (55°F) | 155 mm (6.1 inches) | 74% | high |
| November Weather | 5°C (41°F) | 100 mm (3.9 inches) | 82% | moderate |
| December Weather | 1°C (33°F) | 112 mm (4.4 inches) | 80% | low |