May Weather in Newark, United States

Last updated: June 24, 2025

In May, the average temperature in Newark, United States hovers around 18°C (64°F). Expect a range from a chilly -1°C (31°F) to a warm 32°C (90°F). Additionally, prepare for 139 mm (5.5 in) of precipitation spread over about 15 days, coupled with an average humidity level of 81%.

May Temperature in Newark

In May in Newark, the average temperature is 18°C (64°F). Maximums can reach 32°C (90°F) and minimums can be as low as -1°C (31°F). Travelers should be prepared for a wide range of temperatures, so packing layers is advisable.

May Weather in Newark: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Newark, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Newark, May typically has an average temperature of 18°C (64°F), with highs reaching up to 32°C (90°F) and lows dropping to around -1°C (31°F).

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

May Precipitation in Newark

In Newark in May, the precipitation amount is 139 mm (5.5 in), occurring over 15 days.

May Precipitation Trends in Newark

The chart displays monthly precipitation patterns in Newark, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Newark, May typically receives around 139 mm (5.5 inches) of precipitation spread over approximately 15 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Newark

In Newark in May, humidity is 81%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making travel both refreshing and slightly stifling at the same time.

May Average Humidity in Newark

This chart illustrates the average monthly humidity levels in Newark, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Newark is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Newark

In Newark in May, 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 Newark.

Maximum UV Index Levels in Newark for May

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

Data source: Newark May 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 May Weather in Newark Compares to Other Months

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

This table compares monthly weather conditions in Newark, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	90 mm (3.5 inches)	88%	moderate
February Weather	1°C (35°F)	114 mm (4.5 inches)	88%	moderate
March Weather	6°C (43°F)	117 mm (4.6 inches)	87%	high
April Weather	11°C (52°F)	129 mm (5.1 inches)	85%	very high
May Weather	18°C (64°F)	139 mm (5.5 inches)	81%	very high
June Weather	22°C (72°F)	162 mm (6.4 inches)	82%	very high
July Weather	24°C (76°F)	127 mm (5.0 inches)	81%	very high
August Weather	23°C (73°F)	97 mm (3.8 inches)	73%	very high
September Weather	20°C (69°F)	100 mm (3.9 inches)	73%	very high
October Weather	14°C (58°F)	106 mm (4.2 inches)	78%	high
November Weather	6°C (42°F)	100 mm (3.9 inches)	89%	moderate
December Weather	2°C (37°F)	108 mm (4.3 inches)	87%	moderate