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December Weather in Morris, United States

Last updated: June 24, 2025

In Morris, United States, the average temperature in December hovers around -2°C (29°F), but be prepared for a range that can dip to a chilly -21°C (-6°F) at its lowest and reach a balmy 16°C (60°F) at its highest. During this month, expect 95 mm (3.7 in) of precipitation spread over 13 days, contributing to an average humidity of 86%. Stay cozy and ready for anything nature throws your way!

December Temperature in Morris

In December in Morris, the average temperature is -2°C (29°F), with maximums reaching up to 16°C (60°F) and minimums plummeting as low as -21°C (-6°F). Travelers should be prepared for a wide range of temperatures when visiting during this month.

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 -2°C (29°F), with highs reaching up to 16°C (60°F) and lows dropping to around -21°C (-6°F).
JanFebMarAprMayJunJulAugSepOctNovDec232733445665706861513729
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 95 mm (3.7 in) over the course of 13 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 95 mm (3.7 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec82958711812310813011410015310295
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 86%. With an average temperature of -2°C (29°F), this humidity feels like a damp chill that seeps through layers of clothing, making outdoor activities uncomfortable and travel plans challenging.

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 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%87%88%82%79%78%76%78%84%89%86%
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 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 Morris, you can visit Hourly UV Index in Morris.

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 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346910101098642
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 Weather-5°C (24°F)82 mm (3.2 inches)90%moderate
February Weather-3°C (27°F)95 mm (3.7 inches)90%moderate
March Weather0°C (33°F)87 mm (3.4 inches)87%high
April Weather7°C (45°F)118 mm (4.6 inches)88%very high
May Weather14°C (57°F)122 mm (4.8 inches)82%very high
June Weather18°C (65°F)108 mm (4.3 inches)79%very high
July Weather21°C (70°F)130 mm (5.1 inches)78%very high
August Weather20°C (68°F)114 mm (4.5 inches)76%very high
September Weather16°C (62°F)100 mm (4.0 inches)78%very high
October Weather11°C (52°F)153 mm (6.0 inches)84%high
November Weather3°C (37°F)102 mm (4.0 inches)89%moderate
December Weather-2°C (29°F)95 mm (3.7 inches)86%low

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