July Weather in Johnstown, United States

Last updated: June 24, 2025

In July, the average temperature in Johnstown, United States is a comfortable 24°C (75°F). Daily highs can reach up to 33°C (91°F), while it can drop to a cooler 13°C (55°F) at night. Expect about 114 mm (4.5 in) of precipitation spread over 12 days throughout the month, accompanied by an average humidity of 81%. Stay prepared for a mix of warmth and occasional showers!

July Temperature in Johnstown

In July, in Johnstown, the average temperature is 24°C (75°F), with maximums reaching up to 33°C (91°F) and minimums dropping to as low as 13°C (55°F). This makes it an ideal destination for travelers seeking pleasant weather and a comfortable climate.

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 24°C (75°F), with highs reaching up to 33°C (91°F) and lows dropping to around 13°C (55°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 114 mm (4.5 in) spread over 12 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 114 mm (4.5 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

July Humidity in Johnstown

In Johnstown in July humidity is 81%. With an average temperature of 24°C (75°F), this humidity feels like a warm, thick blanket enveloping you, making traveling a bit sticky and sweaty, yet still inviting for those who enjoy the rich, tropical atmosphere.

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 81%, 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	-1°C (30°F)	86 mm (3.4 inches)	88%	moderate
February Weather	1°C (34°F)	110 mm (4.3 inches)	87%	moderate
March Weather	5°C (42°F)	111 mm (4.4 inches)	87%	high
April Weather	11°C (51°F)	125 mm (4.9 inches)	87%	very high
May Weather	17°C (63°F)	129 mm (5.1 inches)	81%	very high
June Weather	22°C (71°F)	151 mm (5.9 inches)	82%	very high
July Weather	24°C (75°F)	114 mm (4.5 inches)	81%	very high
August Weather	23°C (73°F)	76 mm (3.0 inches)	78%	very high
September Weather	20°C (68°F)	88 mm (3.4 inches)	78%	very high
October Weather	14°C (57°F)	102 mm (4.0 inches)	82%	high
November Weather	5°C (41°F)	100 mm (3.9 inches)	89%	moderate
December Weather	2°C (36°F)	104 mm (4.1 inches)	86%	low