nomadseason

December Weather in Clatskanie, United States

Last updated: June 24, 2025

In December, the average temperature in Clatskanie, United States hovers around 4°C (40°F). Expect a chilly range, with minimum temperatures dropping to -6°C (22°F) and occasionally reaching a pleasant 13°C (56°F). During this month, you'll likely see 201 mm (7.9 in) of precipitation spread over approximately 20 days, contributing to the high average humidity of 87%. Stay warm and dry as you explore!

December Temperature in Clatskanie

In December in Clatskanie, the average temperature is 4°C (40°F). Maximums can reach 13°C (56°F), and minimums can drop as low as -6°C (22°F). Be sure to pack warm clothing and prepare for variable weather conditions during your travels.

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

The chart illustrates December temperature patterns in Clatskanie, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Clatskanie, December typically has an average temperature of 4°C (40°F), with highs reaching up to 13°C (56°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec403943485459626460504439
Data source: Temperature data for Clatskanie 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 Clatskanie

In Clatskanie in December, the precipitation amount is 201 mm (7.9 in) over the course of 20 days.

December Precipitation Trends in Clatskanie

The chart displays monthly precipitation patterns in Clatskanie, 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 Clatskanie, December typically receives around 201 mm (7.9 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec1861741471297662101082122177201
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Clatskanie

In Clatskanie in December humidity is 87%. With an average temperature of 4°C (40°F), this humidity feels like an uncomfortable chill that seeps into your bones, making it essential to dress warmly and prepare for damp conditions, which can dampen your spirits while traveling.

December Average Humidity in Clatskanie

This chart illustrates the average monthly humidity levels in Clatskanie, 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 Clatskanie 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 Clatskanie

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

Maximum UV Index Levels in Clatskanie for December

The chart shows the monthly maximum UV Index (UVI) for Clatskanie 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 Clatskanie typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec23569101087532
Data source: Clatskanie 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 Clatskanie Compares to Other Months

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

This table compares monthly weather conditions in Clatskanie, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)186 mm (7.3 inches)85%low
February Weather4°C (39°F)174 mm (6.8 inches)84%moderate
March Weather6°C (44°F)147 mm (5.8 inches)85%moderate
April Weather9°C (49°F)129 mm (5.1 inches)83%high
May Weather12°C (54°F)76 mm (3.0 inches)83%very high
June Weather15°C (59°F)62 mm (2.4 inches)83%very high
July Weather17°C (63°F)10 mm (0.4 inches)82%very high
August Weather18°C (64°F)10 mm (0.4 inches)74%very high
September Weather15°C (60°F)82 mm (3.2 inches)71%high
October Weather10°C (50°F)122 mm (4.8 inches)81%moderate
November Weather7°C (44°F)177 mm (7.0 inches)87%moderate
December Weather4°C (40°F)201 mm (7.9 inches)87%low

Compare Clatskanie's Climate with Cities Worldwide