December Weather in Twin Valley, United States

Last updated: June 24, 2025

In December, the average temperature in Twin Valley, United States hovers around -8°C (17°F). Be prepared for chilly extremes, as temperatures can plummet to a minimum of -33°C (-27°F), while occasionally reaching a mild maximum of 8°C (47°F). Expect 42 mm (1.7 in) of precipitation spread over 8 days, contributing to the region's high average humidity of 86%. Bundle up and enjoy the wintery charm!

December Temperature in Twin Valley

In December, in Twin Valley, the average temperature is -8°C (17°F). Maximums can reach 8°C (47°F), while minimums can drop as low as -33°C (-27°F). It's essential to dress warmly and prepare for extreme cold if you're traveling during this time.

December Weather in Twin Valley: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Twin Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Twin Valley, December typically has an average temperature of -8°C (17°F), with highs reaching up to 8°C (47°F) and lows dropping to around -33°C (-27°F).
JanFebMarAprMayJunJulAugSepOctNovDec10928395669726860442817
Data source: Temperature data for Twin Valley 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 Twin Valley

In Twin Valley in December, the precipitation amount is 42 mm (1.7 in) over the course of 8 days.

December Precipitation Trends in Twin Valley

The chart displays monthly precipitation patterns in Twin Valley, 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 Twin Valley, December typically receives around 42 mm (1.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec202226514980709293832442
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Twin Valley

In Twin Valley in December, humidity is 86%. With an average temperature of -8°C (17°F), this humidity feels like an icy blanket wrapping around you, making travel outside feel uncomfortably frigid and damp, as if you're stepping into a chilled, moist cloud that clings to your skin, often leading to a biting chill that seeps into your bones.

December Average Humidity in Twin Valley

This chart illustrates the average monthly humidity levels in Twin Valley, 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 Twin Valley 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 Twin Valley

In Twin Valley 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 Twin Valley, you can visit Hourly UV Index in Twin Valley.

Maximum UV Index Levels in Twin Valley for December

The chart shows the monthly maximum UV Index (UVI) for Twin Valley 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 Twin Valley typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457810987532
Data source: Twin Valley 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 Twin Valley Compares to Other Months

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

This table compares monthly weather conditions in Twin Valley, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-12°C (10°F)20 mm (0.8 inches)90%low
February Weather-13°C (9°F)22 mm (0.9 inches)92%moderate
March Weather-2°C (28°F)26 mm (1.0 inches)85%moderate
April Weather4°C (39°F)51 mm (2.0 inches)81%high
May Weather13°C (56°F)49 mm (1.9 inches)75%very high
June Weather21°C (69°F)80 mm (3.1 inches)79%very high
July Weather22°C (72°F)70 mm (2.8 inches)76%very high
August Weather20°C (68°F)92 mm (3.6 inches)78%very high
September Weather15°C (60°F)92 mm (3.6 inches)77%high
October Weather6°C (44°F)83 mm (3.3 inches)79%moderate
November Weather-2°C (28°F)24 mm (1.0 inches)86%moderate
December Weather-8°C (17°F)42 mm (1.7 inches)86%low

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