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December Weather in Morris, United States

Last updated: June 24, 2025

In December, the average temperature in Morris, United States hovers around 8°C (46°F). Expect chilly days with temperatures ranging from a minimum of -6°C (21°F) to a maximum of 24°C (76°F). With an average humidity of 87%, the atmosphere feels quite damp. Be prepared for some rain, as you'll likely encounter 66 mm (2.6 in) of precipitation over 6 days.

December Temperature in Morris

In December in Morris, the average temperature is 8°C (46°F). Maximums can reach 24°C (76°F), while minimums can drop to as low as -6°C (21°F). Be prepared for a wide range of temperatures if you're traveling during this time!

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

The chart illustrates December temperature patterns in Morris, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Morris, December typically has an average temperature of 8°C (46°F), with highs reaching up to 24°C (76°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec414355607079838177635246
Data source: Temperature data for Morris 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 Morris

In Morris in December, the precipitation amount is 66 mm (2.6 in) over the course of 6 days.

December Precipitation Trends in Morris

The chart displays monthly precipitation patterns in Morris, 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 Morris, December typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec818410715019879801001001365566
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Morris

In Morris in December, humidity is 87%. With an average temperature of 8°C (46°F), this humidity feels like a chilly, damp fog clinging to your skin, making outdoor activities a bit uncomfortable and causing even mild exertion to leave you feeling clammy and cold.

December Average Humidity in Morris

This chart illustrates the average monthly humidity levels in Morris, 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 Morris is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%75%75%83%82%78%68%64%71%82%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Morris

In Morris 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 Morris, you can check the information here.

Maximum UV Index Levels in Morris for December

The chart shows the monthly maximum UV Index (UVI) for Morris 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 Morris typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46710101111109753
Data source: Morris 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 Morris Compares to Other Months

Weather in Morris varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Morris, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Morris, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)81 mm (3.2 inches)79%moderate
February Weather6°C (43°F)84 mm (3.3 inches)78%high
March Weather13°C (55°F)107 mm (4.2 inches)75%high
April Weather16°C (61°F)150 mm (5.9 inches)75%very high
May Weather21°C (71°F)198 mm (7.8 inches)83%very high
June Weather26°C (80°F)79 mm (3.1 inches)81%extreme
July Weather28°C (83°F)80 mm (3.2 inches)78%extreme
August Weather27°C (81°F)100 mm (3.9 inches)68%very high
September Weather25°C (77°F)100 mm (3.9 inches)64%very high
October Weather17°C (64°F)136 mm (5.4 inches)71%high
November Weather11°C (52°F)55 mm (2.2 inches)82%moderate
December Weather8°C (46°F)66 mm (2.6 inches)87%moderate

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