July Weather in Union, United States

Last updated: June 24, 2025

In July, the average temperature in Union, United States is a warm 27°C (81°F). Expect a range from a comfortable 18°C (64°F) to a sultry 36°C (97°F). During this time, 113 mm (4.5 in) of precipitation can be expected over 16 days, contributing to an average humidity of 80%.

July Temperature in Union

In July in Union, the average temperature is 27°C (81°F). Maximums can reach 36°C (97°F), while minimums can be as low as 18°C (64°F). Travelers should prepare for warm weather with the possibility of hot days and cooler evenings, making it ideal for outdoor activities.

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

The chart illustrates July 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, July typically has an average temperature of 27°C (81°F), with highs reaching up to 36°C (97°F) and lows dropping to around 18°C (64°F).

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

July Precipitation in Union

In Union in July, the total precipitation amount is 113 mm (4.5 in) which falls over a period of 16 days.

July Precipitation Trends in Union

The chart displays monthly precipitation patterns in Union, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Union, July typically receives around 113 mm (4.5 inches) of precipitation spread over approximately 16 days.

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

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Millimeters (mm) Inches (in)

July Humidity in Union

In Union in July humidity is 80%. With an average temperature of 27°C (81°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making travel tiring as sweat beads form quickly and the air feels thick and heavy.

July Average Humidity in Union

This chart illustrates the average monthly humidity levels in Union, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Union is approximately 80%, offering insight into how humid the weather typically is during this month.

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

July UV Index in Union

In Union in July, 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 Union.

Maximum UV Index Levels in Union for July

The chart shows the monthly maximum UV Index (UVI) for Union in July, 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 July, the maximum UV index in Union typically reaches 11, which falls under the extreme exposure category.

Data source: Union July 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 July 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 July’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 July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	95 mm (3.7 inches)	86%	moderate
February Weather	10°C (51°F)	123 mm (4.8 inches)	85%	high
March Weather	13°C (56°F)	90 mm (3.6 inches)	84%	very high
April Weather	17°C (63°F)	108 mm (4.2 inches)	82%	very high
May Weather	22°C (72°F)	115 mm (4.5 inches)	83%	extreme
June Weather	25°C (77°F)	90 mm (3.5 inches)	82%	extreme
July Weather	27°C (81°F)	113 mm (4.5 inches)	80%	extreme
August Weather	26°C (79°F)	127 mm (5.0 inches)	74%	very high
September Weather	24°C (76°F)	115 mm (4.5 inches)	75%	very high
October Weather	19°C (67°F)	97 mm (3.8 inches)	79%	very high
November Weather	11°C (53°F)	96 mm (3.8 inches)	87%	high
December Weather	9°C (49°F)	130 mm (5.1 inches)	87%	moderate