August Weather in Union, United States

Last updated: June 24, 2025

In August, the average temperature in Union, United States is a comfortable 22°C (72°F). Expect a minimum of 11°C (51°F) and a maximum reaching up to 34°C (93°F). During this month, the region receives about 88 mm (3.5 in) of precipitation over 13 days, contributing to an average humidity level of 66%. Enjoy the mild conditions while preparing for occasional showers!

August Temperature in Union

In August in Union, the average temperature is 22°C (72°F). Maximum temperatures can reach 34°C (93°F), while minimum temperatures can drop as low as 11°C (51°F). This pleasant climate makes Union an ideal destination for travelers looking to enjoy mild weather and outdoor activities.

August Weather in Union: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Union, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Union, August typically has an average temperature of 22°C (72°F), with highs reaching up to 34°C (93°F) and lows dropping to around 11°C (51°F).

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

August Precipitation in Union

In Union in August, the precipitation amount is 88 mm (3.5 in) spread over 13 days.

August Precipitation Trends in Union

The chart displays monthly precipitation patterns in Union, 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 Union, August typically receives around 88 mm (3.5 inches) of precipitation spread over approximately 13 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 Union

In Union in August, humidity is 66%. With an average temperature of 22°C (72°F), this humidity feels like walking through a warm, enveloping blanket, making it essential to stay hydrated while exploring the sights and taking regular breaks in shaded areas.

August Average Humidity in Union

This chart illustrates the average monthly humidity levels in Union, 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 Union is approximately 66%, 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 Union

In Union 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 Union.

Maximum UV Index Levels in Union for August

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

Data source: Union 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 Union Compares to Other Months

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

This table compares monthly weather conditions in Union, 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 (34°F)	74 mm (2.9 inches)	87%	moderate
February Weather	4°C (40°F)	124 mm (4.9 inches)	87%	high
March Weather	7°C (44°F)	92 mm (3.6 inches)	86%	very high
April Weather	12°C (53°F)	113 mm (4.5 inches)	84%	very high
May Weather	17°C (62°F)	131 mm (5.2 inches)	83%	extreme
June Weather	20°C (69°F)	93 mm (3.7 inches)	83%	extreme
July Weather	23°C (73°F)	69 mm (2.7 inches)	79%	extreme
August Weather	22°C (72°F)	88 mm (3.5 inches)	66%	very high
September Weather	19°C (67°F)	101 mm (4.0 inches)	68%	very high
October Weather	14°C (57°F)	108 mm (4.2 inches)	78%	high
November Weather	6°C (43°F)	70 mm (2.7 inches)	89%	moderate
December Weather	3°C (39°F)	95 mm (3.7 inches)	86%	moderate