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December Weather in Underwood, United States

Last updated: June 24, 2025

In December, the average temperature in Underwood, United States hovers around -7°C (20°F), with fluctuations that can see lows of -34°C (-30°F) and highs reaching 13°C (55°F). Expect 21 mm (0.8 in) of precipitation spread over 5 days and an average humidity of 84%, making this a chilly and relatively damp month!

December Temperature in Underwood

In December in Underwood, the average temperature is -7°C (20°F). Maximum temperatures can reach 13°C (55°F), while minimums can drop as low as -34°C (-30°F). It's essential to pack warm clothing and be prepared for extreme cold when traveling during this time.

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

The chart illustrates December temperature patterns in Underwood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Underwood, December typically has an average temperature of -7°C (20°F), with highs reaching up to 13°C (55°F) and lows dropping to around -34°C (-30°F).
JanFebMarAprMayJunJulAugSepOctNovDec131128385568726959433020
Data source: Temperature data for Underwood 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 Underwood

In Underwood in December, the precipitation amount is 21 mm (0.8 in) spread over a period of 5 days.

December Precipitation Trends in Underwood

The chart displays monthly precipitation patterns in Underwood, 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 Underwood, December typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec131726274465626163441921
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Underwood

In Underwood in December, humidity is 84%. With an average temperature of -7°C (20°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and requiring extra layers to stay warm and dry.

December Average Humidity in Underwood

This chart illustrates the average monthly humidity levels in Underwood, 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 Underwood is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%88%78%75%76%79%78%78%69%71%82%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Underwood

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

Maximum UV Index Levels in Underwood for December

The chart shows the monthly maximum UV Index (UVI) for Underwood 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 Underwood typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2459810987532
Data source: Underwood 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 Underwood Compares to Other Months

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

This table compares monthly weather conditions in Underwood, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (13°F)13 mm (0.5 inches)84%low
February Weather-12°C (11°F)16 mm (0.6 inches)88%moderate
March Weather-2°C (28°F)26 mm (1.0 inches)78%moderate
April Weather3°C (39°F)27 mm (1.0 inches)75%very high
May Weather13°C (55°F)43 mm (1.7 inches)76%very high
June Weather20°C (68°F)65 mm (2.6 inches)79%very high
July Weather22°C (72°F)62 mm (2.4 inches)78%very high
August Weather20°C (69°F)61 mm (2.4 inches)78%very high
September Weather15°C (60°F)63 mm (2.5 inches)69%high
October Weather6°C (43°F)44 mm (1.7 inches)71%moderate
November Weather-1°C (30°F)19 mm (0.8 inches)82%moderate
December Weather-7°C (20°F)21 mm (0.8 inches)84%low

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