July Weather in Keystone, United States

Last updated: June 24, 2025

In Keystone, United States, the average temperature in July hovers around 24°C (76°F), creating a pleasant climate for outdoor activities. Expect a minimum of 12°C (53°F) and a maximum of 34°C (94°F), offering a diverse range of weather experiences. During this month, anticipate 91 mm (3.6 in) of precipitation over approximately 10 days, contributing to an average humidity of 79% that keeps the air refreshingly cool.

July Temperature in Keystone

In July in Keystone, the average temperature is 24°C (76°F). The maximum can reach 34°C (94°F), while the minimum can be as low as 12°C (53°F). This pleasant climate makes Keystone an ideal destination for outdoor activities and exploration during this time.

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

The chart illustrates July temperature patterns in Keystone, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Keystone, July typically has an average temperature of 24°C (76°F), with highs reaching up to 34°C (94°F) and lows dropping to around 12°C (53°F).

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

July Precipitation in Keystone

In Keystone in July, the precipitation amount totals 91 mm (3.6 in) over a span of 10 days.

July Precipitation Trends in Keystone

The chart displays monthly precipitation patterns in Keystone, 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 Keystone, July typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 10 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 Keystone

In Keystone in July, humidity is 79%. With an average temperature of 24°C (76°F), this humidity feels like a thick blanket wrapped around you, making traveling somewhat uncomfortable and sticky, as you navigate through the warmth while constantly seeking shade and hydration.

July Average Humidity in Keystone

This chart illustrates the average monthly humidity levels in Keystone, 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 Keystone is approximately 79%, 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 Keystone

In Keystone in July, 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 Keystone.

Maximum UV Index Levels in Keystone for July

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

Data source: Keystone 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 Keystone Compares to Other Months

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

This table compares monthly weather conditions in Keystone, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	45 mm (1.8 inches)	81%	moderate
February Weather	-5°C (23°F)	52 mm (2.1 inches)	81%	moderate
March Weather	3°C (38°F)	73 mm (2.9 inches)	81%	high
April Weather	9°C (48°F)	85 mm (3.3 inches)	82%	very high
May Weather	16°C (62°F)	162 mm (6.4 inches)	78%	very high
June Weather	23°C (73°F)	143 mm (5.6 inches)	81%	extreme
July Weather	24°C (76°F)	91 mm (3.6 inches)	79%	very high
August Weather	22°C (72°F)	64 mm (2.5 inches)	77%	very high
September Weather	20°C (67°F)	121 mm (4.8 inches)	78%	very high
October Weather	11°C (52°F)	143 mm (5.6 inches)	78%	high
November Weather	3°C (38°F)	45 mm (1.8 inches)	87%	moderate
December Weather	-1°C (30°F)	40 mm (1.6 inches)	84%	moderate