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January Weather in La Grande, United States

Last updated: June 24, 2025

In January, the average temperature in La Grande, United States hovers around -3°C (28°F). Expect fluctuations, with minimums plunging as low as -24°C (-12°F) and maximums reaching up to 6°C (44°F). The region experiences significant precipitation, totaling 86 mm (3.4 in) over approximately 14 days, while maintaining an average humidity of 86%. Get ready for a chilly, damp month!

January Temperature in La Grande

In January in La Grande, the average temperature is -3°C (28°F). The maximum can reach 6°C (44°F), while the minimum can drop as low as -24°C (-12°F). Travelers should be prepared for cold weather and pack appropriate winter gear.

January Weather in La Grande: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in La Grande, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In La Grande, January typically has an average temperature of -3°C (28°F), with highs reaching up to 6°C (44°F) and lows dropping to around -24°C (-12°F).
JanFebMarAprMayJunJulAugSepOctNovDec272735415058686657443529
Data source: Temperature data for La Grande 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 La Grande

In La Grande in January, the precipitation amount is 86 mm (3.4 in) over the course of 14 days.

January Precipitation Trends in La Grande

The chart displays monthly precipitation patterns in La Grande, 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 La Grande, January typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec861308986774441635647996
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in La Grande

In La Grande in January, humidity is 86%. With an average temperature of -3°C (28°F), this humidity feels like a biting chill that seeps through layers of clothing, making travel outside quite uncomfortable and necessitating frequent warm-up breaks indoors.

January Average Humidity in La Grande

This chart illustrates the average monthly humidity levels in La Grande, 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 La Grande is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%85%83%77%81%77%60%58%75%85%87%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in La Grande

In La Grande in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in La Grande, you can check the information here.

Maximum UV Index Levels in La Grande for January

The chart shows the monthly maximum UV Index (UVI) for La Grande 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 La Grande typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357810101098542
Data source: La Grande 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 La Grande Compares to Other Months

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

This table compares monthly weather conditions in La Grande, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (28°F)86 mm (3.4 inches)86%moderate
February Weather-3°C (28°F)130 mm (5.1 inches)86%moderate
March Weather2°C (36°F)89 mm (3.5 inches)85%high
April Weather5°C (42°F)86 mm (3.4 inches)83%very high
May Weather10°C (50°F)77 mm (3.0 inches)77%very high
June Weather14°C (58°F)44 mm (1.7 inches)81%very high
July Weather20°C (68°F)3 mm (0.1 inches)76%very high
August Weather19°C (67°F)16 mm (0.6 inches)60%very high
September Weather14°C (57°F)35 mm (1.4 inches)58%very high
October Weather6°C (44°F)64 mm (2.5 inches)75%moderate
November Weather2°C (35°F)79 mm (3.1 inches)85%moderate
December Weather-2°C (29°F)96 mm (3.8 inches)87%low

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