April Weather in Harlem, United States

Last updated: June 24, 2025

In Harlem, United States, the average temperature in April hovers around 5°C (41°F). Visitors should be prepared for a wide range of temperatures, as the minimum can dip to -23°C (-9°F) while the maximum can reach 27°C (81°F). Expect 26 mm (1.0 in) of precipitation spread over 6 days, and enjoy the moderate average humidity of 73% that characterizes this season.

April Temperature in Harlem

In April in Harlem, the average temperature is 5°C (41°F). The maximum can reach 27°C (81°F), while the minimum can drop as low as -23°C (-9°F). Be prepared for a wide range of temperatures when traveling to Harlem this month.

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

The chart illustrates April 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, April typically has an average temperature of 5°C (41°F), with highs reaching up to 27°C (81°F) and lows dropping to around -23°C (-9°F).

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

April Precipitation in Harlem

In Harlem in April, the precipitation amount is 26 mm (1.0 in) over the course of 6 days.

April Precipitation Trends in Harlem

The chart displays monthly precipitation patterns in Harlem, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Harlem, April typically receives around 26 mm (1.0 inches) of precipitation spread over approximately 6 days.

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

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Millimeters (mm) Inches (in)

April Humidity in Harlem

In Harlem in April, humidity is 73%. With an average temperature of 5°C (41°F), this humidity makes traveling feel quite chilly and damp, which can be uncomfortable for long periods outdoors.

April Average Humidity in Harlem

This chart illustrates the average monthly humidity levels in Harlem, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Harlem is approximately 73%, offering insight into how humid the weather typically is during this month.

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

April UV Index in Harlem

In Harlem in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Harlem.

Maximum UV Index Levels in Harlem for April

The chart shows the monthly maximum UV Index (UVI) for Harlem in April, 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 April, the maximum UV index in Harlem typically reaches 7, which falls under the high exposure category.

Data source: Harlem April 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 April 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 April’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 April’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