July Weather in Johnstown, United States

Last updated: June 24, 2025

In July, the average temperature in Johnstown, United States is a pleasant 22°C (72°F). However, temperatures can range from a cool 10°C (50°F) to a warm 33°C (92°F). Expect some rain during this period, with an average precipitation of 121 mm (4.8 in) spread over 15 days. Additionally, the average humidity sits at a comfortable 74%, making it a unique time to experience the local climate.

July Temperature in Johnstown

In July in Johnstown, the average temperature is 22°C (72°F). The maximum can reach 33°C (92°F), while the minimum can drop to as low as 10°C (50°F). This makes for comfortable weather, perfect for exploring and enjoying outdoor activities.

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

The chart illustrates July temperature patterns in Johnstown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Johnstown, July typically has an average temperature of 22°C (72°F), with highs reaching up to 33°C (92°F) and lows dropping to around 10°C (50°F).

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

July Precipitation in Johnstown

In Johnstown in July, the precipitation amount is 121 mm (4.8 in) during a period of 15 days.

July Precipitation Trends in Johnstown

The chart displays monthly precipitation patterns in Johnstown, 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 Johnstown, July typically receives around 121 mm (4.8 inches) of precipitation spread over approximately 15 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 Johnstown

In Johnstown in July, humidity is 74%. With an average temperature of 22°C (72°F), this humidity feels like a warm blanket enveloping you, making it a bit uncomfortable for traveling, as every step feels heavier and the air is thick.

July Average Humidity in Johnstown

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

In Johnstown 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 Johnstown.

Maximum UV Index Levels in Johnstown for July

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

Data source: Johnstown 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 Johnstown Compares to Other Months

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

This table compares monthly weather conditions in Johnstown, 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 (28°F)	91 mm (3.6 inches)	89%	moderate
February Weather	0°C (33°F)	131 mm (5.1 inches)	90%	moderate
March Weather	4°C (39°F)	114 mm (4.5 inches)	89%	high
April Weather	9°C (49°F)	133 mm (5.2 inches)	88%	very high
May Weather	15°C (60°F)	152 mm (6.0 inches)	80%	very high
June Weather	19°C (67°F)	145 mm (5.7 inches)	79%	very high
July Weather	22°C (72°F)	121 mm (4.8 inches)	74%	very high
August Weather	21°C (70°F)	98 mm (3.9 inches)	64%	very high
September Weather	18°C (65°F)	126 mm (5.0 inches)	67%	very high
October Weather	12°C (55°F)	115 mm (4.5 inches)	81%	high
November Weather	4°C (40°F)	91 mm (3.6 inches)	89%	moderate
December Weather	1°C (34°F)	115 mm (4.5 inches)	88%	low