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December Weather in Fergus Falls, United States

Last updated: June 24, 2025

In Fergus Falls, United States, the average temperature in December hovers around -7°C (19°F), with extremes reaching as low as -30°C (-21°F) and peaking at 10°C (50°F). Expect 41 mm (1.6 in) of precipitation spread over 8 days, while the air is often characterized by a high average humidity of 86%. Be prepared for the chill and occasional dampness this season!

December Temperature in Fergus Falls

In December in Fergus Falls, the average temperature is -7°C (19°F). Maximums can reach 10°C (50°F), and minimums can be as low as -30°C (-21°F). Travelers should be prepared for chilly conditions and consider packing warm clothing for their visit.

December Weather in Fergus Falls: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Fergus Falls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fergus Falls, December typically has an average temperature of -7°C (19°F), with highs reaching up to 10°C (50°F) and lows dropping to around -30°C (-21°F).
JanFebMarAprMayJunJulAugSepOctNovDec111129395670736961453019
Data source: Temperature data for Fergus Falls 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 Fergus Falls

In Fergus Falls in December, the total precipitation amount is 41 mm (1.6 in) occurring over the course of 8 days.

December Precipitation Trends in Fergus Falls

The chart displays monthly precipitation patterns in Fergus Falls, 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 Fergus Falls, December typically receives around 41 mm (1.6 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec19223361716810012495902341
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Fergus Falls

In Fergus Falls in December, humidity is 86%. With an average temperature of -7°C (19°F), this humidity feels like a thick, chilly blanket enveloping you, making outdoor activities uncomfortable and travel feel more laborious as the cold dampness seeps into your bones.

December Average Humidity in Fergus Falls

This chart illustrates the average monthly humidity levels in Fergus Falls, 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 Fergus Falls is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%92%85%81%75%79%77%78%77%79%86%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Fergus Falls

In Fergus Falls 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 Fergus Falls, you can visit Hourly UV Index in Fergus Falls.

Maximum UV Index Levels in Fergus Falls for December

The chart shows the monthly maximum UV Index (UVI) for Fergus Falls 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 Fergus Falls typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910987532
Data source: Fergus Falls 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 Fergus Falls Compares to Other Months

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

This table compares monthly weather conditions in Fergus Falls, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (12°F)19 mm (0.7 inches)90%low
February Weather-12°C (11°F)22 mm (0.9 inches)92%moderate
March Weather-2°C (29°F)33 mm (1.3 inches)85%moderate
April Weather4°C (40°F)61 mm (2.4 inches)81%high
May Weather14°C (57°F)71 mm (2.8 inches)75%very high
June Weather21°C (70°F)68 mm (2.7 inches)79%very high
July Weather23°C (73°F)100 mm (3.9 inches)76%very high
August Weather20°C (69°F)124 mm (4.9 inches)78%very high
September Weather16°C (61°F)94 mm (3.7 inches)77%high
October Weather7°C (45°F)90 mm (3.5 inches)79%moderate
November Weather-1°C (30°F)23 mm (0.9 inches)86%moderate
December Weather-7°C (19°F)41 mm (1.6 inches)86%low

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