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December Weather in Fairmount, United States

Last updated: June 24, 2025

In Fairmount, United States, the average temperature in December hovers around 2°C (35°F), with a minimum dropping to a chilly -23°C (-8°F) and a maximum reaching a mild 17°C (64°F). Expect about 67 mm (2.6 in) of precipitation spread over 10 days, and brace yourself for a high average humidity of 86%.

December Temperature in Fairmount

In December in Fairmount, the average temperature is 2°C (35°F). Maximum temperatures can reach 17°C (64°F), while minimums can drop as low as -23°C (-8°F). Be sure to pack for a wide range of temperatures during your travels in this month!

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

The chart illustrates December temperature patterns in Fairmount, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fairmount, December typically has an average temperature of 2°C (35°F), with highs reaching up to 17°C (64°F) and lows dropping to around -23°C (-8°F).
JanFebMarAprMayJunJulAugSepOctNovDec293141516373767368574135
Data source: Temperature data for Fairmount 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 Fairmount

In Fairmount in December, the total precipitation amount is 67 mm (2.6 in) over a period of 10 days.

December Precipitation Trends in Fairmount

The chart displays monthly precipitation patterns in Fairmount, 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 Fairmount, December typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec768510693138105106101701038367
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Fairmount

In Fairmount in December humidity is 86%. With an average temperature of 2°C (35°F), this humidity feels like a damp chill that seeps into your bones, making traveling quite uncomfortable as your clothes cling to you and the cold air cuts through any warmth you try to find.

December Average Humidity in Fairmount

This chart illustrates the average monthly humidity levels in Fairmount, 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 Fairmount is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%86%87%81%82%81%79%78%81%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Fairmount

In Fairmount 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 Fairmount, you can visit Hourly UV Index in Fairmount.

Maximum UV Index Levels in Fairmount for December

The chart shows the monthly maximum UV Index (UVI) for Fairmount 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 Fairmount typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098642
Data source: Fairmount 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 Fairmount Compares to Other Months

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

This table compares monthly weather conditions in Fairmount, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)76 mm (3.0 inches)85%moderate
February Weather0°C (32°F)85 mm (3.3 inches)85%moderate
March Weather5°C (42°F)106 mm (4.2 inches)86%high
April Weather10°C (51°F)92 mm (3.6 inches)87%very high
May Weather17°C (64°F)138 mm (5.4 inches)81%very high
June Weather23°C (73°F)105 mm (4.1 inches)82%extreme
July Weather24°C (76°F)106 mm (4.2 inches)81%very high
August Weather23°C (73°F)101 mm (4.0 inches)79%very high
September Weather20°C (69°F)70 mm (2.8 inches)78%very high
October Weather14°C (57°F)103 mm (4.0 inches)81%high
November Weather5°C (41°F)82 mm (3.2 inches)89%moderate
December Weather2°C (35°F)67 mm (2.6 inches)86%low

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