January Weather in Heppner, United States

Last updated: June 24, 2025

In January, the average temperature in Heppner, United States hovers around 0°C (33°F). Expect chilly conditions, with minimums plummeting to -22°C (-8°F) and maximums reaching a mild 14°C (58°F). Precipitation can bring about 60 mm (2.3 in) over roughly 13 days, contributing to an average humidity of a crisp 86%. Be prepared for a brisk and moist winter experience!

January Temperature in Heppner

In January in Heppner, the average temperature is 0°C (33°F). Maximum can reach 14°C (58°F) and minimum can be as low as -22°C (-8°F). Be prepared for a wide range of temperatures, making layered clothing essential for your travels.

January Weather in Heppner: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Heppner, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heppner, January typically has an average temperature of 0°C (33°F), with highs reaching up to 14°C (58°F) and lows dropping to around -22°C (-8°F).

Data source: Temperature data for Heppner generated using information from the Copernicus Climate Change Service.

January Precipitation in Heppner

In Heppner in January, the precipitation amount is 60 mm (2.3 in) during 13 days, indicating a relatively wet period for that time of year.

January Precipitation Trends in Heppner

The chart displays monthly precipitation patterns in Heppner, 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 Heppner, January typically receives around 60 mm (2.3 inches) of precipitation spread over approximately 13 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Heppner

In Heppner in January humidity is 86%. With an average temperature of 0°C (33°F), this humidity feels like a damp chill that permeates your clothes, making traveling uncomfortable and necessitating warm, layered clothing to stay dry and cozy.

January Average Humidity in Heppner

This chart illustrates the average monthly humidity levels in Heppner, 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 Heppner is approximately 86%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Heppner

In Heppner 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 Heppner, you can check the information here.

Maximum UV Index Levels in Heppner for January

The chart shows the monthly maximum UV Index (UVI) for Heppner 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 Heppner typically reaches 3, which falls under the moderate exposure category.

Data source: Heppner 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 Heppner Compares to Other Months

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

This table compares monthly weather conditions in Heppner, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (33°F)	60 mm (2.3 inches)	86%	moderate
February Weather	0°C (33°F)	85 mm (3.3 inches)	86%	moderate
March Weather	4°C (39°F)	69 mm (2.7 inches)	85%	high
April Weather	8°C (46°F)	69 mm (2.7 inches)	83%	very high
May Weather	12°C (55°F)	47 mm (1.8 inches)	77%	very high
June Weather	17°C (63°F)	27 mm (1.1 inches)	81%	very high
July Weather	22°C (72°F)	2 mm (0.1 inches)	76%	very high
August Weather	22°C (71°F)	10 mm (0.4 inches)	60%	very high
September Weather	16°C (61°F)	27 mm (1.1 inches)	58%	very high
October Weather	9°C (48°F)	46 mm (1.8 inches)	75%	moderate
November Weather	4°C (39°F)	65 mm (2.5 inches)	85%	moderate
December Weather	0°C (33°F)	61 mm (2.4 inches)	87%	low