May Weather in Harlem, United States

Last updated: June 24, 2025

In Harlem, United States, the average temperature in May hovers around 12°C (55°F). Be prepared for a wide range, as temperatures can dip to a chilly -4°C (26°F) or soar up to a warm 31°C (88°F). With an average precipitation amount of 38 mm (1.5 in) spread across 6 days, and humidity levels reaching 73%, make sure to pack accordingly for your visit!

May Temperature in Harlem

In May in Harlem, the average temperature is 12°C (55°F). Maximum temperatures can reach 31°C (88°F), while the minimum can drop as low as -4°C (26°F). Be prepared for a wide range of temperatures during your travels, and pack accordingly!

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

The chart illustrates May temperature patterns in Harlem, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harlem, May typically has an average temperature of 12°C (55°F), with highs reaching up to 31°C (88°F) and lows dropping to around -4°C (26°F).

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

May Precipitation in Harlem

In Harlem in May, the total precipitation amount is 38 mm (1.5 in) spread over 6 days.

May Precipitation Trends in Harlem

The chart displays monthly precipitation patterns in Harlem, 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 Harlem, May typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 6 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Harlem

In Harlem in May, humidity is 73%. With an average temperature of 12°C (55°F), this humidity feels like a cool, damp embrace that can make traveling a bit more challenging, as the air hangs heavy and might leave you feeling chilled, especially during outdoor adventures.

May Average Humidity in Harlem

This chart illustrates the average monthly humidity levels in Harlem, 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 Harlem is approximately 73%, 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 Harlem

In Harlem in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Harlem.

Maximum UV Index Levels in Harlem for May

The chart shows the monthly maximum UV Index (UVI) for Harlem 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 Harlem typically reaches 8, which falls under the very high exposure category.

Data source: Harlem 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 Harlem Compares to Other Months

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

This table compares monthly weather conditions in Harlem, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	11 mm (0.4 inches)	85%	low
February Weather	-9°C (16°F)	26 mm (1.0 inches)	90%	moderate
March Weather	-1°C (31°F)	22 mm (0.9 inches)	82%	moderate
April Weather	5°C (41°F)	26 mm (1.0 inches)	73%	high
May Weather	12°C (55°F)	38 mm (1.5 inches)	73%	very high
June Weather	18°C (65°F)	49 mm (1.9 inches)	72%	very high
July Weather	22°C (73°F)	10 mm (0.4 inches)	74%	very high
August Weather	21°C (69°F)	28 mm (1.1 inches)	71%	very high
September Weather	15°C (59°F)	43 mm (1.7 inches)	65%	high
October Weather	6°C (44°F)	24 mm (0.9 inches)	68%	moderate
November Weather	0°C (33°F)	28 mm (1.1 inches)	81%	moderate
December Weather	-4°C (25°F)	19 mm (0.8 inches)	89%	low