July Weather in Piscataway, United States

Last updated: June 24, 2025

In Piscataway, United States, the average temperature in July hovers around 25°C (78°F). Expect a range between a refreshing 14°C (57°F) and a sizzling 37°C (98°F). Throughout the month, anticipate 140 mm (5.5 in) of precipitation spread over approximately 14 days, with an average humidity of 62%. Get ready for a mix of warmth and moisture!

July Temperature in Piscataway

In July in Piscataway, the average temperature is 25°C (78°F). Maximum can reach 37°C (98°F), and minimum can be as low as 14°C (57°F). This makes it a great time to explore outdoor activities, so pack accordingly for both warm days and cooler evenings.

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

The chart illustrates July temperature patterns in Piscataway, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Piscataway, July typically has an average temperature of 25°C (78°F), with highs reaching up to 37°C (98°F) and lows dropping to around 14°C (57°F).

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

July Precipitation in Piscataway

In Piscataway in July, the precipitation amount is 140 mm (5.5 in) over the course of 14 days.

July Precipitation Trends in Piscataway

The chart displays monthly precipitation patterns in Piscataway, 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 Piscataway, July typically receives around 140 mm (5.5 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 Piscataway

In Piscataway in July, humidity is 62%. With an average temperature of 25°C (78°F), this humidity feels like a warm, balmy embrace, making travel enjoyable yet slightly sticky.

July Average Humidity in Piscataway

This chart illustrates the average monthly humidity levels in Piscataway, 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 Piscataway is approximately 62%, 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 Piscataway

In Piscataway 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 Piscataway.

Maximum UV Index Levels in Piscataway for July

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

Data source: Piscataway 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 Piscataway Compares to Other Months

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

This table compares monthly weather conditions in Piscataway, 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)	65 mm (2.6 inches)	84%	moderate
February Weather	3°C (37°F)	107 mm (4.2 inches)	82%	moderate
March Weather	6°C (43°F)	107 mm (4.2 inches)	81%	high
April Weather	11°C (53°F)	110 mm (4.3 inches)	78%	very high
May Weather	17°C (63°F)	129 mm (5.1 inches)	69%	very high
June Weather	22°C (72°F)	102 mm (4.0 inches)	69%	very high
July Weather	25°C (78°F)	140 mm (5.5 inches)	62%	very high
August Weather	24°C (76°F)	133 mm (5.2 inches)	65%	very high
September Weather	21°C (70°F)	89 mm (3.5 inches)	68%	very high
October Weather	16°C (60°F)	136 mm (5.4 inches)	74%	high
November Weather	8°C (46°F)	82 mm (3.2 inches)	82%	moderate
December Weather	3°C (38°F)	106 mm (4.2 inches)	80%	low