nomadseason

December Weather in Newberg, United States

Last updated: June 24, 2025

In December, the average temperature in Newberg, United States hovers around 5°C (42°F), but don't be surprised by the range; it can dip to a chilling -6°C (22°F) or rise to a pleasant 16°C (61°F). With 182 mm (7.2 in) of precipitation spread over 18 days, expect a fair share of rain, accompanied by an average humidity of 87% that adds to the overall cool, misty atmosphere of the season.

December Temperature in Newberg

In December in Newberg, the average temperature is 5°C (42°F). The maximum can reach 16°C (61°F), while the minimum can drop as low as -6°C (22°F). It's advisable to pack warm clothing for your trip to stay comfortable during your travels.

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

The chart illustrates December temperature patterns in Newberg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Newberg, December typically has an average temperature of 5°C (42°F), with highs reaching up to 16°C (61°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec424246525865707164544742
Data source: Temperature data for Newberg generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Newberg

In Newberg in December, the total precipitation amount is 182 mm (7.2 in) spread over 18 days.

December Precipitation Trends in Newberg

The chart displays monthly precipitation patterns in Newberg, 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 Newberg, December typically receives around 182 mm (7.2 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec1581631211054839445791144182
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Newberg

In Newberg in December humidity is 87%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel less inviting as the air becomes heavy and oppressive.

December Average Humidity in Newberg

This chart illustrates the average monthly humidity levels in Newberg, 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 Newberg is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%85%83%83%84%82%74%71%81%87%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Newberg

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

Maximum UV Index Levels in Newberg for December

The chart shows the monthly maximum UV Index (UVI) for Newberg 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 Newberg typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec23579101097532
Data source: Newberg 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 Newberg Compares to Other Months

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

This table compares monthly weather conditions in Newberg, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)158 mm (6.2 inches)85%low
February Weather5°C (42°F)163 mm (6.4 inches)84%moderate
March Weather8°C (47°F)121 mm (4.8 inches)85%moderate
April Weather11°C (52°F)105 mm (4.1 inches)83%high
May Weather15°C (58°F)48 mm (1.9 inches)83%very high
June Weather18°C (65°F)39 mm (1.5 inches)83%very high
July Weather21°C (71°F)4 mm (0.2 inches)82%very high
August Weather22°C (71°F)4 mm (0.2 inches)74%very high
September Weather18°C (65°F)57 mm (2.3 inches)71%high
October Weather12°C (54°F)91 mm (3.6 inches)81%moderate
November Weather8°C (47°F)144 mm (5.7 inches)87%moderate
December Weather5°C (42°F)182 mm (7.2 inches)87%low

Compare Newberg's Climate with Cities Worldwide