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December Weather in North Valley, United States

Last updated: June 24, 2025

In December, the average temperature in North Valley, United States hovers around 2°C (35°F). Expect a broad range, with minimums dipping to -17°C (2°F) and maximums reaching up to 17°C (63°F). The region sees around 14 mm (0.6 in) of precipitation over 4 days, accompanied by an average humidity of 79%. Stay prepared!

December Temperature in North Valley

In December in North Valley, the average temperature is 2°C (35°F). Maximums can reach 17°C (63°F), while minimums can drop as low as -17°C (2°F). Be prepared for chilly conditions and pack appropriately when traveling to this destination during this time.

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

The chart illustrates December temperature patterns in North Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In North Valley, December typically has an average temperature of 2°C (35°F), with highs reaching up to 17°C (63°F) and lows dropping to around -17°C (2°F).
JanFebMarAprMayJunJulAugSepOctNovDec333747566575767569554535
Data source: Temperature data for North 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 North Valley

In North Valley in December, the total precipitation amount is 14 mm (0.6 in) spread over a duration of 4 days.

December Precipitation Trends in North Valley

The chart displays monthly precipitation patterns in North 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 North Valley, December typically receives around 14 mm (0.6 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec202220221924682634452114
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in North Valley

In North Valley in December humidity is 79%. With an average temperature of 2°C (35°F), this humidity feels like a cold, damp blanket wrapped around you, making travel uncomfortable and the chill seem to penetrate deeper, causing you to seek warmth at every opportunity.

December Average Humidity in North Valley

This chart illustrates the average monthly humidity levels in North 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 North Valley is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%79%66%60%57%55%57%65%72%78%81%79%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in North Valley

In North Valley in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in North Valley for better planning.

Maximum UV Index Levels in North Valley for December

The chart shows the monthly maximum UV Index (UVI) for North 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 North Valley typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec479111213121211864
Data source: North 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 North Valley Compares to Other Months

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

This table compares monthly weather conditions in North Valley, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)20 mm (0.8 inches)78%moderate
February Weather3°C (37°F)22 mm (0.9 inches)79%high
March Weather8°C (47°F)20 mm (0.8 inches)66%very high
April Weather13°C (56°F)22 mm (0.9 inches)60%extreme
May Weather18°C (65°F)19 mm (0.7 inches)57%extreme
June Weather24°C (75°F)24 mm (0.9 inches)55%extreme
July Weather25°C (77°F)68 mm (2.7 inches)56%extreme
August Weather24°C (75°F)26 mm (1.0 inches)65%extreme
September Weather21°C (69°F)34 mm (1.3 inches)72%extreme
October Weather13°C (55°F)45 mm (1.8 inches)78%very high
November Weather7°C (45°F)21 mm (0.8 inches)81%high
December Weather2°C (35°F)14 mm (0.6 inches)79%moderate

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