July Weather in Williston, United States

Last updated: June 24, 2025

In Williston, United States, the average temperature in July hovers around 28°C (82°F), with a refreshing minimum of 17°C (64°F) and a sizzling maximum of 38°C (101°F). During this time, expect about 143 mm (5.6 in) of precipitation spread over 17 days, which contributes to the notably high average humidity of 80%. Enjoy the warm embrace of tropical weather, but don't forget your umbrella!

July Temperature in Williston

In July in Williston, the average temperature is 28°C (82°F). Maximum temperatures can reach 38°C (101°F), while minimums can drop to as low as 17°C (64°F). This makes Williston an ideal destination for travelers looking to enjoy warm weather along with some cooler evenings.

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

The chart illustrates July temperature patterns in Williston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Williston, July typically has an average temperature of 28°C (82°F), with highs reaching up to 38°C (101°F) and lows dropping to around 17°C (64°F).

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

July Precipitation in Williston

In Williston in July, the total precipitation amount is 143 mm (5.6 in) spread over 17 days.

July Precipitation Trends in Williston

The chart displays monthly precipitation patterns in Williston, 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 Williston, July typically receives around 143 mm (5.6 inches) of precipitation spread over approximately 17 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 Williston

In Williston in July, humidity is 80%. With an average temperature of 28°C (82°F), this humidity feels like a warm, thick blanket enveloping you, making outdoor activities sweaty and demanding frequent breaks in the shade while traveling.

July Average Humidity in Williston

This chart illustrates the average monthly humidity levels in Williston, 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 Williston 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 Williston

In Williston 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 Williston.

Maximum UV Index Levels in Williston for July

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

Data source: Williston 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 Williston Compares to Other Months

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

This table compares monthly weather conditions in Williston, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	88 mm (3.4 inches)	86%	moderate
February Weather	12°C (54°F)	110 mm (4.3 inches)	81%	high
March Weather	15°C (59°F)	81 mm (3.2 inches)	81%	very high
April Weather	18°C (66°F)	117 mm (4.6 inches)	79%	very high
May Weather	23°C (74°F)	102 mm (4.0 inches)	75%	extreme
June Weather	26°C (79°F)	111 mm (4.4 inches)	75%	extreme
July Weather	28°C (82°F)	143 mm (5.6 inches)	80%	extreme
August Weather	27°C (81°F)	144 mm (5.7 inches)	81%	extreme
September Weather	25°C (78°F)	78 mm (3.1 inches)	83%	very high
October Weather	21°C (69°F)	78 mm (3.1 inches)	78%	very high
November Weather	13°C (55°F)	60 mm (2.4 inches)	85%	high
December Weather	11°C (51°F)	122 mm (4.8 inches)	87%	moderate