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December Weather in Sudden Valley, United States

Last updated: June 24, 2025

In December, the average temperature in Sudden Valley, United States hovers around 2°C (37°F), where chilly days can dip to a minimum of -16°C (4°F), while occasionally reaching a maximum of 11°C (53°F). Expect considerable precipitation, with about 271 mm (10.7 in) falling over 19 days, accompanied by a high average humidity level of 89%. Stay prepared for the damp and cold!

December Temperature in Sudden Valley

In December in Sudden Valley, the average temperature is 2°C (37°F). The maximum can reach 11°C (53°F), while the minimum can be as low as -16°C (4°F). Be prepared for potentially chilly weather when traveling during this time.

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

The chart illustrates December temperature patterns in Sudden Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sudden Valley, December typically has an average temperature of 2°C (37°F), with highs reaching up to 11°C (53°F) and lows dropping to around -16°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec373540455257626357484236
Data source: Temperature data for Sudden 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 Sudden Valley

In Sudden Valley in December, the precipitation amount is 271 mm (10.7 in) over the course of 19 days.

December Precipitation Trends in Sudden Valley

The chart displays monthly precipitation patterns in Sudden 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 Sudden Valley, December typically receives around 271 mm (10.7 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec24022819415294803726150225307271
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sudden Valley

In Sudden Valley in December humidity is 89%. With an average temperature of 2°C (37°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and requiring extra layers and a good waterproof jacket to keep warm and dry.

December Average Humidity in Sudden Valley

This chart illustrates the average monthly humidity levels in Sudden 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 Sudden Valley is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%88%86%82%82%85%77%76%88%88%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sudden Valley

In Sudden Valley in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Sudden Valley.

Maximum UV Index Levels in Sudden Valley for December

The chart shows the monthly maximum UV Index (UVI) for Sudden 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 Sudden Valley typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Sudden 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 Sudden Valley Compares to Other Months

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

This table compares monthly weather conditions in Sudden Valley, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)240 mm (9.4 inches)87%low
February Weather1°C (35°F)228 mm (9.0 inches)86%moderate
March Weather4°C (40°F)194 mm (7.6 inches)88%moderate
April Weather7°C (45°F)152 mm (6.0 inches)86%high
May Weather11°C (52°F)94 mm (3.7 inches)82%very high
June Weather14°C (57°F)80 mm (3.2 inches)82%very high
July Weather16°C (62°F)36 mm (1.4 inches)85%very high
August Weather17°C (63°F)26 mm (1.0 inches)77%very high
September Weather14°C (58°F)150 mm (5.9 inches)76%high
October Weather9°C (48°F)225 mm (8.9 inches)88%moderate
November Weather6°C (42°F)307 mm (12.1 inches)88%low
December Weather2°C (37°F)271 mm (10.7 inches)89%low

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