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December Weather in Marysville, United States

Last updated: June 24, 2025

In December, the average temperature in Marysville, United States hovers around 2°C (36°F). Temperatures can range from a chilly -17°C (2°F) at their lowest to a pleasant 18°C (65°F) at their peak. Expect 91 mm (3.6 in) of precipitation over about 11 days, coupled with an average humidity of 86%. Prepare for a mix of crisp days and damp conditions!

December Temperature in Marysville

In December in Marysville, the average temperature is 2°C (36°F). Maximums can reach 18°C (65°F) and minimums can be as low as -17°C (2°F). Be prepared for a wide range of temperatures and pack accordingly for your trip.

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

The chart illustrates December temperature patterns in Marysville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marysville, December typically has an average temperature of 2°C (36°F), with highs reaching up to 18°C (65°F) and lows dropping to around -17°C (2°F).
JanFebMarAprMayJunJulAugSepOctNovDec303342516371757368574136
Data source: Temperature data for Marysville 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 Marysville

In Marysville in December, the precipitation amount is 91 mm (3.6 in) over a period of 11 days.

December Precipitation Trends in Marysville

The chart displays monthly precipitation patterns in Marysville, 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 Marysville, December typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec73991001111231361118086959391
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Marysville

In Marysville in December, humidity is 86%. With an average temperature of 2°C (36°F), this humidity feels like a biting chill that clings to your skin, making outdoor exploration uncomfortable and dampening any enthusiasm for travel.

December Average Humidity in Marysville

This chart illustrates the average monthly humidity levels in Marysville, 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 Marysville is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%88%81%82%81%78%78%82%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Marysville

In Marysville in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Marysville, you can check the information here.

Maximum UV Index Levels in Marysville for December

The chart shows the monthly maximum UV Index (UVI) for Marysville 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 Marysville typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
Data source: Marysville 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 Marysville Compares to Other Months

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

This table compares monthly weather conditions in Marysville, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)73 mm (2.9 inches)88%moderate
February Weather1°C (33°F)99 mm (3.9 inches)87%moderate
March Weather5°C (42°F)100 mm (3.9 inches)87%high
April Weather11°C (51°F)111 mm (4.4 inches)87%very high
May Weather17°C (63°F)123 mm (4.8 inches)81%very high
June Weather22°C (72°F)136 mm (5.4 inches)82%very high
July Weather24°C (76°F)111 mm (4.4 inches)81%very high
August Weather23°C (73°F)80 mm (3.1 inches)78%very high
September Weather20°C (69°F)86 mm (3.4 inches)78%very high
October Weather14°C (58°F)95 mm (3.8 inches)82%high
November Weather5°C (42°F)93 mm (3.7 inches)89%moderate
December Weather2°C (36°F)91 mm (3.6 inches)86%moderate

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