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December Weather in Blue Mounds, United States

Last updated: June 24, 2025

In December, the average temperature in Blue Mounds, United States is a brisk -2°C (29°F). Prepare for the chill, as temperatures can dip as low as -23°C (-8°F), while on milder days, they may soar to 19°C (66°F). Expect a total precipitation of 44 mm (1.7 in) over about 6 days, paired with an average humidity of 81%. Stay warm and dry!

December Temperature in Blue Mounds

In December in Blue Mounds, the average temperature is -2°C (29°F), with maximums reaching 19°C (66°F) and minimums plunging as low as -23°C (-8°F). It's essential to pack accordingly for your travels, as conditions can vary dramatically from day to night.

December Weather in Blue Mounds: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Blue Mounds, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Blue Mounds, December typically has an average temperature of -2°C (29°F), with highs reaching up to 19°C (66°F) and lows dropping to around -23°C (-8°F).
JanFebMarAprMayJunJulAugSepOctNovDec212236466071757165513629
Data source: Temperature data for Blue Mounds 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 Blue Mounds

In Blue Mounds in December, the total precipitation amount is 44 mm (1.7 in) spread over 6 days.

December Precipitation Trends in Blue Mounds

The chart displays monthly precipitation patterns in Blue Mounds, 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 Blue Mounds, December typically receives around 44 mm (1.7 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec50565893135123871131191174344
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Blue Mounds

In Blue Mounds in December humidity is 81%. With an average temperature of -2°C (29°F), this humidity feels like an uncomfortable chill that seeps into your bones, making outdoor activities less enjoyable and requiring extra layers to stay warm while traveling.

December Average Humidity in Blue Mounds

This chart illustrates the average monthly humidity levels in Blue Mounds, 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 Blue Mounds is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Blue Mounds

In Blue Mounds 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 Blue Mounds, you can visit Hourly UV Index in Blue Mounds.

Maximum UV Index Levels in Blue Mounds for December

The chart shows the monthly maximum UV Index (UVI) for Blue Mounds 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 Blue Mounds typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34589101098532
Data source: Blue Mounds 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 Blue Mounds Compares to Other Months

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

This table compares monthly weather conditions in Blue Mounds, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)50 mm (2.0 inches)85%moderate
February Weather-5°C (23°F)56 mm (2.2 inches)85%moderate
March Weather2°C (36°F)58 mm (2.3 inches)85%moderate
April Weather8°C (46°F)93 mm (3.7 inches)85%very high
May Weather15°C (60°F)135 mm (5.3 inches)78%very high
June Weather21°C (71°F)123 mm (4.9 inches)80%very high
July Weather24°C (75°F)87 mm (3.4 inches)78%very high
August Weather22°C (71°F)113 mm (4.4 inches)76%very high
September Weather18°C (65°F)119 mm (4.7 inches)79%very high
October Weather11°C (51°F)117 mm (4.6 inches)83%moderate
November Weather2°C (37°F)43 mm (1.7 inches)88%moderate
December Weather-2°C (29°F)44 mm (1.7 inches)81%low

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