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December Weather in Morrison, United States

Last updated: June 24, 2025

In December, the average temperature in Morrison, United States is a cool 7°C (46°F), with a potential range from a brisk -9°C (16°F) to a mild 22°C (72°F). Prepare for some precipitation, as the area receives an average of 144 mm (5.7 in) over approximately 10 days, contributing to a high average humidity of 88%. Make sure to pack accordingly!

December Temperature in Morrison

In December in Morrison, the average temperature is 7°C (46°F), with maximums reaching 22°C (72°F) and minimums dropping as low as -9°C (16°F). This range of temperatures makes Morrison an interesting destination for travelers who enjoy experiencing a mix of cool and warm weather.

December Weather in Morrison: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Morrison, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Morrison, December typically has an average temperature of 7°C (46°F), with highs reaching up to 22°C (72°F) and lows dropping to around -9°C (16°F).
JanFebMarAprMayJunJulAugSepOctNovDec414653596975797773634945
Data source: Temperature data for Morrison generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Morrison

In Morrison in December, the precipitation amount is 144 mm (5.7 in) over a duration of 10 days.

December Precipitation Trends in Morrison

The chart displays monthly precipitation patterns in Morrison, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Morrison, December typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec10817818214711812411311411011674144
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Morrison

In Morrison in December humidity is 88%. With an average temperature of 7°C (46°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and requiring you to dress in layers to stay warm and dry while exploring.

December Average Humidity in Morrison

This chart illustrates the average monthly humidity levels in Morrison, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Morrison is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%85%82%83%82%78%67%64%75%87%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Morrison

In Morrison in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Morrison, you can check the information here.

Maximum UV Index Levels in Morrison for December

The chart shows the monthly maximum UV Index (UVI) for Morrison in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Morrison typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36810111111109753
Data source: Morrison December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Morrison Compares to Other Months

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.

This table compares monthly weather conditions in Morrison, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)108 mm (4.2 inches)87%moderate
February Weather8°C (46°F)178 mm (7.0 inches)87%high
March Weather12°C (53°F)182 mm (7.2 inches)85%very high
April Weather15°C (59°F)147 mm (5.8 inches)82%very high
May Weather21°C (69°F)117 mm (4.6 inches)83%extreme
June Weather24°C (75°F)123 mm (4.9 inches)82%extreme
July Weather26°C (79°F)113 mm (4.5 inches)78%extreme
August Weather25°C (77°F)114 mm (4.5 inches)67%very high
September Weather23°C (73°F)110 mm (4.3 inches)64%very high
October Weather17°C (63°F)116 mm (4.6 inches)74%high
November Weather9°C (49°F)74 mm (2.9 inches)87%moderate
December Weather7°C (46°F)144 mm (5.7 inches)88%moderate

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