July Weather in Umatilla, United States

Last updated: June 24, 2025

The average temperature in Umatilla, United States during July is a warm 27°C (81°F). Expect a range from a chilly minimum of 12°C (54°F) to a sizzling maximum of 44°C (112°F). With 0 mm (0.0 in) of precipitation over 0 days, you'll enjoy plenty of dry weather, complemented by a comfortable average humidity of 76%.

July Temperature in Umatilla

In July in Umatilla, the average temperature is 27°C (81°F). Maximum temperatures can reach 44°C (112°F), while the minimum can dip as low as 12°C (54°F). Be prepared for a wide range of temperatures and pack accordingly for your travels!

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

The chart illustrates July temperature patterns in Umatilla, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Umatilla, July typically has an average temperature of 27°C (81°F), with highs reaching up to 44°C (112°F) and lows dropping to around 12°C (54°F).

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

July Precipitation in Umatilla

In Umatilla in July, the precipitation amount is 0 mm (0.0 in) during 0 days.

July Precipitation Trends in Umatilla

The chart displays monthly precipitation patterns in Umatilla, 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 Umatilla, July typically receives around 0 mm (0.0 inches) of precipitation spread over approximately 0 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 Umatilla

In Umatilla in July, humidity is 76%. With an average temperature of 27°C (81°F), this humidity feels like a warm blanket enveloping you, making outdoor activities feel stifling and sweat-inducing, which can be challenging for traveling.

July Average Humidity in Umatilla

This chart illustrates the average monthly humidity levels in Umatilla, 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 Umatilla is approximately 76%, 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 Umatilla

In Umatilla 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 Umatilla.

Maximum UV Index Levels in Umatilla for July

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

Data source: Umatilla 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 Umatilla Compares to Other Months

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

This table compares monthly weather conditions in Umatilla, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	35 mm (1.4 inches)	86%	low
February Weather	3°C (37°F)	46 mm (1.8 inches)	86%	moderate
March Weather	8°C (46°F)	30 mm (1.2 inches)	85%	moderate
April Weather	13°C (55°F)	24 mm (0.9 inches)	83%	high
May Weather	18°C (65°F)	15 mm (0.6 inches)	77%	very high
June Weather	23°C (73°F)	8 mm (0.3 inches)	81%	very high
July Weather	27°C (81°F)	0 mm (0.0 inches)	76%	very high
August Weather	26°C (79°F)	4 mm (0.1 inches)	60%	very high
September Weather	20°C (69°F)	9 mm (0.4 inches)	58%	high
October Weather	12°C (54°F)	26 mm (1.0 inches)	75%	moderate
November Weather	6°C (43°F)	34 mm (1.3 inches)	85%	moderate
December Weather	2°C (37°F)	33 mm (1.3 inches)	87%	low