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January Weather in Oregon City, United States

Last updated: June 24, 2025

In January, the average temperature in Oregon City, United States hovers around 5°C (41°F), with a low of -13°C (9°F) and a high of 15°C (59°F). Prepare for a wet month, as precipitation is expected to reach 176 mm (6.9 in) over about 17 days. Don't forget your umbrella—average humidity sits at a chilly 85%!

January Temperature in Oregon City

In January in Oregon City, the average temperature is 5°C (41°F). The maximum can reach 15°C (59°F), while the minimum can be as low as -13°C (9°F). Travelers should be prepared for a wide range of temperatures during this time, making layers essential for comfort.

January Weather in Oregon City: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Oregon City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oregon City, January typically has an average temperature of 5°C (41°F), with highs reaching up to 15°C (59°F) and lows dropping to around -13°C (9°F).
JanFebMarAprMayJunJulAugSepOctNovDec413944495662686962514540
Data source: Temperature data for Oregon City 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.

January Precipitation in Oregon City

In Oregon City in January, the precipitation amount is 176 mm (6.9 in) spread over 17 days.

January Precipitation Trends in Oregon City

The chart displays monthly precipitation patterns in Oregon City, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Oregon City, January typically receives around 176 mm (6.9 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec176219154140705771078130173212
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Oregon City

In Oregon City in January, humidity is 85%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration a challenge as the cold air clings to your skin.

January Average Humidity in Oregon City

This chart illustrates the average monthly humidity levels in Oregon City, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Oregon City is approximately 85%, 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 January generated using information from the Copernicus Climate Change Service.

January UV Index in Oregon City

In Oregon City in January, 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 Oregon City, you can visit Hourly UV Index in Oregon City.

Maximum UV Index Levels in Oregon City for January

The chart shows the monthly maximum UV Index (UVI) for Oregon City in January, 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 January, the maximum UV index in Oregon City typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101098532
Data source: Oregon City January 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 January Weather in Oregon City Compares to Other Months

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

This table compares monthly weather conditions in Oregon City, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)176 mm (6.9 inches)85%low
February Weather4°C (40°F)219 mm (8.6 inches)84%moderate
March Weather7°C (44°F)154 mm (6.0 inches)85%high
April Weather10°C (50°F)140 mm (5.5 inches)83%high
May Weather13°C (56°F)70 mm (2.7 inches)83%very high
June Weather17°C (63°F)57 mm (2.2 inches)83%very high
July Weather20°C (68°F)7 mm (0.3 inches)82%very high
August Weather21°C (69°F)10 mm (0.4 inches)74%very high
September Weather17°C (63°F)78 mm (3.1 inches)71%very high
October Weather11°C (52°F)130 mm (5.1 inches)81%moderate
November Weather7°C (45°F)173 mm (6.8 inches)87%moderate
December Weather5°C (40°F)212 mm (8.3 inches)87%low

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