July Weather in Harrisburg, United States

Last updated: June 24, 2025

In Harrisburg, United States, the average temperature in July hovers around 20°C (68°F). Temperatures can dip to a chilly 7°C (45°F) at night, while soaring to a scorching 36°C (97°F) during the day. Expect minimal precipitation of just 2 mm (0.1 in) over 0 days, contributing to a comfortable average humidity level of 82%.

July Temperature in Harrisburg

In July in Harrisburg, the average temperature is 20°C (68°F). The maximum can reach 36°C (97°F), and the minimum can be as low as 7°C (45°F). This makes it a great time to visit, as you can enjoy warm days while still having cooler evenings to relax.

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

The chart illustrates July temperature patterns in Harrisburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harrisburg, July typically has an average temperature of 20°C (68°F), with highs reaching up to 36°C (97°F) and lows dropping to around 7°C (45°F).

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

July Precipitation in Harrisburg

In Harrisburg in July, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

July Precipitation Trends in Harrisburg

The chart displays monthly precipitation patterns in Harrisburg, 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 Harrisburg, July typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 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 Harrisburg

In Harrisburg in July humidity is 82%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that makes traveling a bit sluggish but surprisingly refreshing, as long as you take breaks in shaded areas to cool off.

July Average Humidity in Harrisburg

This chart illustrates the average monthly humidity levels in Harrisburg, 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 Harrisburg is approximately 82%, 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 Harrisburg

In Harrisburg 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 Harrisburg.

Maximum UV Index Levels in Harrisburg for July

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

Data source: Harrisburg 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 Harrisburg Compares to Other Months

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

This table compares monthly weather conditions in Harrisburg, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (42°F)	160 mm (6.3 inches)	85%	low
February Weather	5°C (41°F)	192 mm (7.5 inches)	84%	moderate
March Weather	7°C (45°F)	140 mm (5.5 inches)	85%	high
April Weather	10°C (50°F)	125 mm (4.9 inches)	83%	high
May Weather	13°C (56°F)	64 mm (2.5 inches)	83%	very high
June Weather	17°C (62°F)	48 mm (1.9 inches)	83%	very high
July Weather	20°C (68°F)	2 mm (0.1 inches)	82%	very high
August Weather	20°C (69°F)	6 mm (0.2 inches)	74%	very high
September Weather	17°C (63°F)	71 mm (2.8 inches)	71%	very high
October Weather	11°C (53°F)	91 mm (3.6 inches)	81%	moderate
November Weather	8°C (46°F)	143 mm (5.6 inches)	87%	moderate
December Weather	5°C (41°F)	195 mm (7.7 inches)	87%	low