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January Weather in Grand Ronde, United States

Last updated: June 24, 2025

In January, the average temperature in Grand Ronde, United States hovers around 5°C (41°F). Expect a chilly range, with minimums dipping to -10°C (14°F) and highs reaching up to 14°C (58°F). The region experiences 194 mm (7.6 in) of precipitation over approximately 17 days, contributing to an average humidity of 85%. Be prepared for wet and cool conditions!

January Temperature in Grand Ronde

In January in Grand Ronde, the average temperature is 5°C (41°F), with maximums reaching up to 14°C (58°F) and minimums dropping as low as -10°C (14°F). Travelers should prepare for a wide range of temperatures and pack accordingly to enjoy their visit comfortably.

January Weather in Grand Ronde: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Grand Ronde, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grand Ronde, January typically has an average temperature of 5°C (41°F), with highs reaching up to 14°C (58°F) and lows dropping to around -10°C (14°F).
JanFebMarAprMayJunJulAugSepOctNovDec414044495560656661524541
Data source: Temperature data for Grand Ronde 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 Grand Ronde

In Grand Ronde in January, the total precipitation amount is 194 mm (7.6 in), measured over a span of 17 days.

January Precipitation Trends in Grand Ronde

The chart displays monthly precipitation patterns in Grand Ronde, 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 Grand Ronde, January typically receives around 194 mm (7.6 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec19418015012663495668105178210
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Grand Ronde

In Grand Ronde 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 Grand Ronde

This chart illustrates the average monthly humidity levels in Grand Ronde, 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 Grand Ronde 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 Grand Ronde

In Grand Ronde 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 Grand Ronde, you can visit Hourly UV Index in Grand Ronde.

Maximum UV Index Levels in Grand Ronde for January

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

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

This table compares monthly weather conditions in Grand Ronde, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)194 mm (7.6 inches)85%low
February Weather5°C (41°F)180 mm (7.1 inches)84%moderate
March Weather7°C (45°F)150 mm (5.9 inches)85%moderate
April Weather9°C (49°F)126 mm (4.9 inches)83%high
May Weather13°C (55°F)63 mm (2.5 inches)83%very high
June Weather16°C (61°F)49 mm (1.9 inches)83%very high
July Weather18°C (65°F)5 mm (0.2 inches)82%very high
August Weather19°C (66°F)6 mm (0.2 inches)74%very high
September Weather16°C (61°F)68 mm (2.7 inches)71%high
October Weather11°C (52°F)105 mm (4.1 inches)81%moderate
November Weather7°C (46°F)178 mm (7.0 inches)87%moderate
December Weather5°C (41°F)210 mm (8.3 inches)87%low

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