June Weather in Heppner, United States

Last updated: June 24, 2025

In June, the average temperature in Heppner, United States is a mild 17°C (63°F), making it a pleasant time to visit. However, temperatures can vary widely, with a minimum of 3°C (38°F) and soaring up to 42°C (108°F). Expect about 27 mm (1.1 in) of precipitation spread over 6 days, contributing to an average humidity level of 81%. Whether you enjoy warm sun or cooler evenings, there’s something for everyone this month!

June Temperature in Heppner

In June in Heppner, the average temperature is 17°C (63°F). The maximum can reach 42°C (108°F), while the minimum can drop as low as 3°C (38°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates June 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, June typically has an average temperature of 17°C (63°F), with highs reaching up to 42°C (108°F) and lows dropping to around 3°C (38°F).

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

June Precipitation in Heppner

In Heppner in June, the precipitation amount is 27 mm (1.1 in) over a period of 6 days.

June Precipitation Trends in Heppner

The chart displays monthly precipitation patterns in Heppner, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Heppner, June typically receives around 27 mm (1.1 inches) of precipitation spread over approximately 6 days.

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

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Millimeters (mm) Inches (in)

June Humidity in Heppner

In Heppner in June humidity is 81%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket enveloping you, making travel slightly oppressive and calling for frequent breaks in air-conditioned spaces to recharge and enjoy your journey comfortably.

June Average Humidity in Heppner

This chart illustrates the average monthly humidity levels in Heppner, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Heppner is approximately 81%, offering insight into how humid the weather typically is during this month.

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

June UV Index in Heppner

In Heppner in June, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Heppner.

Maximum UV Index Levels in Heppner for June

The chart shows the monthly maximum UV Index (UVI) for Heppner in June, 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 June, the maximum UV index in Heppner typically reaches 10, which falls under the very high exposure category.

Data source: Heppner June 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 June 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 June’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 June’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