Last updated: June 24, 2025
In December, the average temperature in Morrison, United States hovers around 0°C (32°F), making it a chilly time of year. While the mercury can dip as low as -21°C (-6°F), it can also rise to a comfortable 21°C (69°F). Expect 49 mm (1.9 in) of precipitation over approximately 6 days, contributing to an average humidity of 84%. Prepare for the cold and dampness as you navigate this wintery landscape!
In December in Morrison, the average temperature is 0°C (32°F). The maximum can reach 21°C (69°F), while the minimum can drop to as low as -21°C (-6°F). This temperature range makes Morrison an ideal destination for travelers seeking both cold-weather activities and mild daytime explorations.
In Morrison in December, the precipitation amount is 49 mm (1.9 in) over the course of 6 days.
In Morrison in December, humidity is 84%. With an average temperature of 0°C (32°F), this humidity feels like a cold, damp chill that seeps into your clothes, making traveling uncomfortable and necessitating extra layers to stay warm despite the moisture-laden air.
In Morrison 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 Morrison, you can visit Hourly UV Index in Morrison.
UV Risk Categories
Weather in Morrison varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Morrison, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (24°F) | 57 mm (2.3 inches) | 81% | moderate |
| February Weather | -3°C (26°F) | 57 mm (2.3 inches) | 81% | moderate |
| March Weather | 4°C (40°F) | 88 mm (3.5 inches) | 81% | high |
| April Weather | 9°C (49°F) | 106 mm (4.2 inches) | 82% | very high |
| May Weather | 17°C (62°F) | 146 mm (5.7 inches) | 78% | very high |
| June Weather | 23°C (73°F) | 145 mm (5.7 inches) | 81% | very high |
| July Weather | 25°C (76°F) | 93 mm (3.7 inches) | 79% | very high |
| August Weather | 23°C (74°F) | 78 mm (3.1 inches) | 77% | very high |
| September Weather | 20°C (69°F) | 112 mm (4.4 inches) | 78% | very high |
| October Weather | 12°C (54°F) | 113 mm (4.4 inches) | 78% | high |
| November Weather | 4°C (39°F) | 50 mm (2.0 inches) | 87% | moderate |
| December Weather | 0°C (32°F) | 49 mm (1.9 inches) | 84% | low |