July Weather in Dedham, United States

Last updated: June 24, 2025

In Dedham, United States, the average temperature in July hovers around 23°C (74°F). During this time, temperatures can drop to a chilly 13°C (56°F) or soar to a sizzling 38°C (100°F). Over the month, expect about 126 mm (5.0 in) of precipitation spread across 13 days, contributing to an average humidity of 67%. Stay prepared for a mix of warmth and occasional rain!

July Temperature in Dedham

In July in Dedham, the average temperature is 23°C (74°F). Maximum temperatures can reach 38°C (100°F), while the minimum can drop to as low as 13°C (56°F). This makes Dedham an ideal destination for travelers looking to enjoy warm weather with a comfortable range of temperatures.

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

The chart illustrates July temperature patterns in Dedham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dedham, July typically has an average temperature of 23°C (74°F), with highs reaching up to 38°C (100°F) and lows dropping to around 13°C (56°F).

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

July Precipitation in Dedham

In Dedham in July, the precipitation amount is 126 mm (5.0 in) over the course of 13 days.

July Precipitation Trends in Dedham

The chart displays monthly precipitation patterns in Dedham, 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 Dedham, July typically receives around 126 mm (5.0 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 Dedham

In Dedham 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 Dedham

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

In Dedham 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 Dedham.

Maximum UV Index Levels in Dedham for July

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

Data source: Dedham 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 Dedham Compares to Other Months

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

This table compares monthly weather conditions in Dedham, 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 (31°F)	70 mm (2.8 inches)	86%	moderate
February Weather	1°C (34°F)	86 mm (3.4 inches)	84%	moderate
March Weather	3°C (38°F)	94 mm (3.7 inches)	82%	moderate
April Weather	9°C (49°F)	126 mm (5.0 inches)	80%	very high
May Weather	15°C (59°F)	90 mm (3.5 inches)	72%	very high
June Weather	20°C (69°F)	87 mm (3.4 inches)	72%	very high
July Weather	23°C (74°F)	126 mm (5.0 inches)	67%	very high
August Weather	23°C (74°F)	84 mm (3.3 inches)	66%	very high
September Weather	19°C (67°F)	84 mm (3.3 inches)	71%	high
October Weather	13°C (56°F)	138 mm (5.4 inches)	78%	high
November Weather	6°C (43°F)	95 mm (3.7 inches)	84%	moderate
December Weather	1°C (35°F)	118 mm (4.6 inches)	81%	low