July Weather in Williamstown, United States

Last updated: June 24, 2025

In July, the average temperature in Williamstown, United States is a pleasant 25°C (77°F). Expect a minimum of 15°C (59°F) and a maximum of 35°C (94°F), making it a delightful time to explore the area. During this month, you can anticipate around 119 mm (4.7 in) of precipitation over 12 days, contributing to an average humidity of 81%. Be prepared for the warm, humid days ahead!

July Temperature in Williamstown

In July in Williamstown, the average temperature is 25°C (77°F), with maximums reaching 35°C (94°F) and minimums dropping to as low as 15°C (59°F). This pleasant climate makes it an ideal time for traveling and exploring the area's outdoor attractions.

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

The chart illustrates July temperature patterns in Williamstown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Williamstown, July typically has an average temperature of 25°C (77°F), with highs reaching up to 35°C (94°F) and lows dropping to around 15°C (59°F).

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

July Precipitation in Williamstown

In Williamstown in July, the total precipitation amount is 119 mm (4.7 in), falling over a span of 12 days.

July Precipitation Trends in Williamstown

The chart displays monthly precipitation patterns in Williamstown, 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 Williamstown, July typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 12 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 Williamstown

In Williamstown in July, humidity is 81%. With an average temperature of 25°C (77°F), this humidity feels like walking through a warm, thick blanket, making traveling quite challenging as you may feel sticky and sluggish, requiring frequent breaks to stay refreshed and hydrated.

July Average Humidity in Williamstown

This chart illustrates the average monthly humidity levels in Williamstown, 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 Williamstown is approximately 81%, 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 Williamstown

In Williamstown 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 Williamstown.

Maximum UV Index Levels in Williamstown for July

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

Data source: Williamstown 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 Williamstown Compares to Other Months

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

This table compares monthly weather conditions in Williamstown, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (35°F)	82 mm (3.2 inches)	88%	moderate
February Weather	4°C (39°F)	122 mm (4.8 inches)	88%	moderate
March Weather	8°C (46°F)	133 mm (5.2 inches)	87%	high
April Weather	13°C (55°F)	135 mm (5.3 inches)	85%	very high
May Weather	19°C (66°F)	131 mm (5.2 inches)	81%	very high
June Weather	23°C (73°F)	167 mm (6.6 inches)	82%	very high
July Weather	25°C (77°F)	119 mm (4.7 inches)	81%	very high
August Weather	24°C (75°F)	88 mm (3.5 inches)	73%	very high
September Weather	21°C (71°F)	107 mm (4.2 inches)	73%	very high
October Weather	15°C (60°F)	104 mm (4.1 inches)	78%	high
November Weather	7°C (45°F)	91 mm (3.6 inches)	89%	moderate
December Weather	4°C (40°F)	116 mm (4.6 inches)	87%	moderate