July Weather in Harleysville, United States

Last updated: June 24, 2025

In July, the average temperature in Harleysville, United States is a pleasant 25°C (78°F). You can expect a range of temperatures, with the minimum dipping to 13°C (55°F) and the maximum soaring to 36°C (97°F). This month also brings about 147 mm (5.8 in) of precipitation over 14 days, resulting in an average humidity of 65%. Be prepared for a mix of sunny days and refreshing showers!

July Temperature in Harleysville

In July in Harleysville, the average temperature is 25°C (78°F). Maximums can reach 36°C (97°F), while minimums can dip as low as 13°C (55°F). It's a great time to visit for those who enjoy warm weather with some cooler evenings.

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

The chart illustrates July temperature patterns in Harleysville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harleysville, July typically has an average temperature of 25°C (78°F), with highs reaching up to 36°C (97°F) and lows dropping to around 13°C (55°F).

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

July Precipitation in Harleysville

In Harleysville in July, the total precipitation amount is 147 mm (5.8 in) over the course of 14 days.

July Precipitation Trends in Harleysville

The chart displays monthly precipitation patterns in Harleysville, 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 Harleysville, July typically receives around 147 mm (5.8 inches) of precipitation spread over approximately 14 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 Harleysville

In Harleysville in July, humidity is 65%. With an average temperature of 25°C (78°F), this humidity feels like a warm, enveloping shawl that makes traveling slightly more strenuous, requiring frequent breaks to stay refreshed and hydrated.

July Average Humidity in Harleysville

This chart illustrates the average monthly humidity levels in Harleysville, 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 Harleysville is approximately 65%, 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 Harleysville

In Harleysville 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 Harleysville.

Maximum UV Index Levels in Harleysville for July

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

Data source: Harleysville 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 Harleysville Compares to Other Months

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

This table compares monthly weather conditions in Harleysville, 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 (34°F)	67 mm (2.7 inches)	87%	moderate
February Weather	3°C (37°F)	106 mm (4.2 inches)	85%	moderate
March Weather	6°C (43°F)	105 mm (4.1 inches)	85%	high
April Weather	12°C (53°F)	104 mm (4.1 inches)	83%	very high
May Weather	17°C (63°F)	144 mm (5.7 inches)	75%	very high
June Weather	22°C (72°F)	111 mm (4.4 inches)	73%	very high
July Weather	25°C (78°F)	147 mm (5.8 inches)	65%	very high
August Weather	24°C (75°F)	163 mm (6.4 inches)	62%	very high
September Weather	21°C (69°F)	100 mm (4.0 inches)	66%	very high
October Weather	15°C (60°F)	102 mm (4.0 inches)	79%	high
November Weather	7°C (45°F)	86 mm (3.4 inches)	87%	moderate
December Weather	3°C (38°F)	101 mm (4.0 inches)	85%	low