August Weather in Mill Creek, United States

Last updated: June 24, 2025

In August, the average temperature in Mill Creek, United States hovers around 20°C (68°F), with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 30°C (86°F). Expect an average humidity level of 73%, accompanied by approximately 144 mm (5.7 in) of precipitation spread over 16 days. Stay prepared for a mix of weather as you enjoy your time in this vibrant locale!

August Temperature in Mill Creek

In August in Mill Creek, the average temperature is 20°C (68°F). Maximums can reach 30°C (86°F), and minimums can be as low as 10°C (50°F). This makes it an ideal time for travelers to enjoy pleasant weather while exploring the beauty of Mill Creek.

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

The chart illustrates August 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, August typically has an average temperature of 20°C (68°F), with highs reaching up to 30°C (86°F) and lows dropping to around 10°C (50°F).

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

August Precipitation in Mill Creek

In Mill Creek in August, the total precipitation amount is 144 mm (5.7 in), which occurs over a span of 16 days.

August Precipitation Trends in Mill Creek

The chart displays monthly precipitation patterns in Mill Creek, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Mill Creek, August typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 16 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Mill Creek

In Mill Creek in August, humidity is 73%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making outdoor activities somewhat sticky, yet the atmosphere remains pleasant for leisurely strolls and sightseeing.

August Average Humidity in Mill Creek

This chart illustrates the average monthly humidity levels in Mill Creek, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Mill Creek is approximately 73%, offering insight into how humid the weather typically is during this month.

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

August UV Index in Mill Creek

In Mill Creek in August, 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 Mill Creek.

Maximum UV Index Levels in Mill Creek for August

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

Data source: Mill Creek August 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 August 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 August’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 August’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