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December Weather in Fall River Mills, United States

Last updated: June 24, 2025

In December, the average temperature in Fall River Mills, United States hovers around 1°C (35°F). Expect a chilly minimum of -12°C (11°F) and a pleasant maximum of 17°C (63°F). With 105 mm (4.1 in) of precipitation over 11 days, staying dry will be a challenge. Don't forget to prepare for a humid atmosphere, as the average humidity sits at a brisk 86%!

December Temperature in Fall River Mills

In December in Fall River Mills, the average temperature is 1°C (35°F). The maximum can reach 17°C (63°F), while the minimum can drop to as low as -12°C (11°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

December Weather in Fall River Mills: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Fall River Mills, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fall River Mills, December typically has an average temperature of 1°C (35°F), with highs reaching up to 17°C (63°F) and lows dropping to around -12°C (11°F).
JanFebMarAprMayJunJulAugSepOctNovDec363640485667757363514234
Data source: Temperature data for Fall River Mills 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 Fall River Mills

In Fall River Mills in December, the precipitation amount is 105 mm (4.1 in) over the course of 11 days.

December Precipitation Trends in Fall River Mills

The chart displays monthly precipitation patterns in Fall River Mills, 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 Fall River Mills, December typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec13213712576491446204374105
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Fall River Mills

In Fall River Mills in December, humidity is 86%. With an average temperature of 1°C (35°F), this humidity feels like a biting chill that wraps around you, making outdoor exploration uncomfortable and requiring extra layers to stay warm while navigating the damp air.

December Average Humidity in Fall River Mills

This chart illustrates the average monthly humidity levels in Fall River Mills, 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 Fall River Mills is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%87%86%83%72%67%56%42%46%67%86%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Fall River Mills

In Fall River Mills 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 Fall River Mills, you can check the information here.

Maximum UV Index Levels in Fall River Mills for December

The chart shows the monthly maximum UV Index (UVI) for Fall River Mills 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 Fall River Mills typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579111111109643
Data source: Fall River Mills 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 Fall River Mills Compares to Other Months

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

This table compares monthly weather conditions in Fall River Mills, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)132 mm (5.2 inches)86%moderate
February Weather2°C (37°F)137 mm (5.4 inches)87%moderate
March Weather5°C (41°F)125 mm (4.9 inches)86%high
April Weather9°C (48°F)76 mm (3.0 inches)83%very high
May Weather13°C (56°F)49 mm (1.9 inches)72%extreme
June Weather19°C (67°F)14 mm (0.6 inches)67%extreme
July Weather24°C (75°F)4 mm (0.2 inches)56%extreme
August Weather23°C (73°F)6 mm (0.2 inches)42%very high
September Weather17°C (64°F)20 mm (0.8 inches)46%very high
October Weather11°C (51°F)43 mm (1.7 inches)67%high
November Weather5°C (42°F)74 mm (2.9 inches)86%moderate
December Weather1°C (35°F)105 mm (4.1 inches)86%moderate

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