July Weather in Williston, United States

Last updated: June 24, 2025

In Williston, United States, the average temperature in July hovers around 27°C (81°F), providing a warm and inviting climate. Expect minimum temperatures of 21°C (71°F) and highs reaching up to 37°C (100°F). With an average precipitation of 183 mm (7.2 in) spread across 26 days, you'll likely encounter frequent rain showers. Additionally, the average humidity level of 79% adds to the tropical feel of the month, making it essential to stay hydrated.

July Temperature in Williston

In July in Williston, the average temperature is 27°C (81°F). Maximums can reach 37°C (100°F), while minimums can drop to as low as 21°C (71°F). This makes it an ideal time for travelers seeking warm weather and outdoor adventures.

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 27°C (81°F), with highs reaching up to 37°C (100°F) and lows dropping to around 21°C (71°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 precipitation amount is 183 mm (7.2 in) over the course of 26 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 183 mm (7.2 inches) of precipitation spread over approximately 26 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 79%. With an average temperature of 27°C (81°F), this humidity feels like a warm and sticky embrace, making travel both challenging and invigorating as the air clings to your skin, urging you to seek shade or a refreshing drink.

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 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 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	14°C (57°F)	51 mm (2.0 inches)	83%	moderate
February Weather	17°C (63°F)	63 mm (2.5 inches)	82%	very high
March Weather	19°C (66°F)	34 mm (1.3 inches)	78%	very high
April Weather	21°C (71°F)	77 mm (3.0 inches)	77%	extreme
May Weather	25°C (77°F)	96 mm (3.8 inches)	75%	extreme
June Weather	27°C (80°F)	168 mm (6.6 inches)	76%	extreme
July Weather	27°C (81°F)	183 mm (7.2 inches)	79%	extreme
August Weather	27°C (81°F)	194 mm (7.6 inches)	78%	extreme
September Weather	27°C (80°F)	125 mm (4.9 inches)	83%	very high
October Weather	24°C (76°F)	77 mm (3.0 inches)	81%	very high
November Weather	18°C (65°F)	56 mm (2.2 inches)	83%	high
December Weather	15°C (60°F)	90 mm (3.6 inches)	86%	moderate