July Weather in Norristown, United States

Last updated: June 24, 2025

In July, the average temperature in Norristown, United States is a warm 26°C (79°F). Temperatures can range from a cool 14°C (58°F) to a sweltering 37°C (99°F). During this month, expect 131 mm (5.2 in) of precipitation spread over approximately 13 days, accompanied by an average humidity of 74%. Prepare for a mix of warmth and occasional showers!

July Temperature in Norristown

In July in Norristown, the average temperature is 26°C (79°F). The maximum can reach 37°C (99°F) and the minimum can be as low as 14°C (58°F). It's a great time to visit if you enjoy warm weather and comfortable evenings.

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

The chart illustrates July temperature patterns in Norristown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Norristown, July typically has an average temperature of 26°C (79°F), with highs reaching up to 37°C (99°F) and lows dropping to around 14°C (58°F).

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

July Precipitation in Norristown

In Norristown in July, the precipitation amount is 131 mm (5.2 in) over the course of 13 days.

July Precipitation Trends in Norristown

The chart displays monthly precipitation patterns in Norristown, 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 Norristown, July typically receives around 131 mm (5.2 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 Norristown

In Norristown in July humidity is 74%. With an average temperature of 26°C (79°F), this humidity feels like a warm, enveloping blanket, making it essential for travelers to stay hydrated and take frequent breaks in shaded areas to fully enjoy the vibrant surroundings.

July Average Humidity in Norristown

This chart illustrates the average monthly humidity levels in Norristown, 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 Norristown is approximately 74%, 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 Norristown

In Norristown 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 Norristown.

Maximum UV Index Levels in Norristown for July

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

Data source: Norristown 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 Norristown Compares to Other Months

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

This table compares monthly weather conditions in Norristown, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	63 mm (2.5 inches)	84%	moderate
February Weather	4°C (39°F)	108 mm (4.3 inches)	83%	moderate
March Weather	7°C (44°F)	107 mm (4.2 inches)	83%	high
April Weather	12°C (55°F)	105 mm (4.1 inches)	81%	very high
May Weather	18°C (65°F)	133 mm (5.2 inches)	78%	very high
June Weather	23°C (74°F)	102 mm (4.0 inches)	79%	very high
July Weather	26°C (79°F)	131 mm (5.2 inches)	74%	very high
August Weather	25°C (77°F)	134 mm (5.3 inches)	72%	very high
September Weather	22°C (71°F)	93 mm (3.7 inches)	75%	very high
October Weather	16°C (61°F)	106 mm (4.2 inches)	81%	high
November Weather	8°C (47°F)	83 mm (3.3 inches)	85%	moderate
December Weather	4°C (40°F)	100 mm (4.0 inches)	84%	moderate