June Weather in Mill Creek, United States

Last updated: June 24, 2025

In June, the average temperature in Mill Creek, United States is a pleasant 19°C (66°F). Expect a range from a cool 5°C (40°F) to a warm 28°C (83°F). With an average humidity of 84%, you may feel the moisture in the air, especially with 141 mm (5.6 in) of precipitation spread over 17 days. Prepare for a mix of weather as you enjoy your time here!

June Temperature in Mill Creek

In June in Mill Creek, the average temperature is 19°C (66°F). The maximum can reach 28°C (83°F), and the minimum can be as low as 5°C (40°F). This temperature range makes Mill Creek an ideal destination for travelers seeking a mild climate with pleasant days and cool evenings.

June Weather in Mill Creek: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Mill Creek, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mill Creek, June typically has an average temperature of 19°C (66°F), with highs reaching up to 28°C (83°F) and lows dropping to around 5°C (40°F).

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

June Precipitation in Mill Creek

In Mill Creek, in June, the precipitation amount is 141 mm (5.6 in) over the course of 17 days.

June Precipitation Trends in Mill Creek

The chart displays monthly precipitation patterns in Mill Creek, 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 Mill Creek, June typically receives around 141 mm (5.6 inches) of precipitation spread over approximately 17 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 Mill Creek

In Mill Creek in June, humidity is 84%. With an average temperature of 19°C (66°F), this humidity feels like a warm, sticky embrace that can make traveling uncomfortable and exhausting, as the air clings to your skin, and every step taken feels heavier in the sultry atmosphere.

June Average Humidity in Mill Creek

This chart illustrates the average monthly humidity levels in Mill Creek, 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 Mill Creek is approximately 84%, 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 Mill Creek

In Mill Creek in June, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Mill Creek.

Maximum UV Index Levels in Mill Creek for June

The chart shows the monthly maximum UV Index (UVI) for Mill Creek 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 Mill Creek typically reaches 11, which falls under the extreme exposure category.

Data source: Mill Creek 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 Mill Creek Compares to Other Months

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

This table compares monthly weather conditions in Mill Creek, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	104 mm (4.1 inches)	88%	moderate
February Weather	2°C (36°F)	158 mm (6.2 inches)	88%	moderate
March Weather	5°C (41°F)	127 mm (5.0 inches)	88%	high
April Weather	10°C (50°F)	160 mm (6.3 inches)	86%	very high
May Weather	15°C (60°F)	174 mm (6.9 inches)	82%	extreme
June Weather	19°C (66°F)	141 mm (5.6 inches)	84%	extreme
July Weather	21°C (70°F)	120 mm (4.7 inches)	82%	extreme
August Weather	20°C (68°F)	144 mm (5.7 inches)	73%	very high
September Weather	18°C (64°F)	116 mm (4.6 inches)	73%	very high
October Weather	13°C (55°F)	129 mm (5.1 inches)	81%	high
November Weather	5°C (41°F)	91 mm (3.6 inches)	89%	moderate
December Weather	2°C (36°F)	129 mm (5.1 inches)	86%	moderate