July Weather in Sudbury, United States

Last updated: June 24, 2025

In July, the average temperature in Sudbury, United States is a pleasant 23°C (74°F). Expect a comfortable range, with minimums dipping to 13°C (55°F) and maximums reaching 37°C (98°F). This month also sees a total precipitation of 133 mm (5.3 in) spread over 13 days, contributing to an average humidity level of 67%. Whether you're planning to explore or relax, the weather is sure to make your experience enjoyable!

July Temperature in Sudbury

In July in Sudbury, the average temperature is 23°C (74°F), with maximums soaring to 37°C (98°F) and minimums dropping to as low as 13°C (55°F). This range makes it an ideal time for travelers to enjoy a variety of outdoor activities, from warm afternoons to cooler evenings.

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

The chart illustrates July temperature patterns in Sudbury, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sudbury, July typically has an average temperature of 23°C (74°F), with highs reaching up to 37°C (98°F) and lows dropping to around 13°C (55°F).

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

July Precipitation in Sudbury

In Sudbury in July, the precipitation amount is 133 mm (5.3 in) over the course of 13 days.

July Precipitation Trends in Sudbury

The chart displays monthly precipitation patterns in Sudbury, 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 Sudbury, July typically receives around 133 mm (5.3 inches) of precipitation spread over approximately 13 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 Sudbury

In Sudbury in July humidity is 67%. With an average temperature of 23°C (74°F), this humidity feels like a warm embrace, making outdoor exploration pleasant yet slightly sticky, perfect for leisurely strolls but requiring occasional breaks for hydration.

July Average Humidity in Sudbury

This chart illustrates the average monthly humidity levels in Sudbury, 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 Sudbury is approximately 67%, 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 Sudbury

In Sudbury in July, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Sudbury.

Maximum UV Index Levels in Sudbury for July

The chart shows the monthly maximum UV Index (UVI) for Sudbury 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 Sudbury typically reaches 9, which falls under the very high exposure category.

Data source: Sudbury 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 Sudbury Compares to Other Months

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

This table compares monthly weather conditions in Sudbury, 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 (30°F)	69 mm (2.7 inches)	86%	moderate
February Weather	0°C (32°F)	85 mm (3.3 inches)	84%	moderate
March Weather	3°C (38°F)	86 mm (3.4 inches)	82%	high
April Weather	9°C (48°F)	124 mm (4.9 inches)	80%	very high
May Weather	15°C (59°F)	86 mm (3.4 inches)	72%	very high
June Weather	20°C (69°F)	85 mm (3.4 inches)	72%	very high
July Weather	23°C (74°F)	133 mm (5.3 inches)	67%	very high
August Weather	23°C (73°F)	85 mm (3.4 inches)	66%	very high
September Weather	19°C (66°F)	79 mm (3.1 inches)	71%	high
October Weather	13°C (55°F)	132 mm (5.2 inches)	78%	high
November Weather	5°C (42°F)	97 mm (3.8 inches)	84%	moderate
December Weather	0°C (33°F)	118 mm (4.6 inches)	81%	low