April Weather in Montclair, United States

Last updated: June 24, 2025

In April, the average temperature in Montclair, United States hovers around 14°C (58°F). Expect a range that can swing from a brisk -1°C (31°F) to a warm 33°C (92°F). With 101 mm (4.0 in) of precipitation spread over about 10 days, it's a moist time of year, complemented by an average humidity of 81%. Prepare accordingly!

April Temperature in Montclair

In April in Montclair, the average temperature is 14°C (58°F). Maximums can reach up to 33°C (92°F), while minimums can drop as low as -1°C (31°F). Pack accordingly for a range of weather conditions to fully enjoy your travels.

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

The chart illustrates April temperature patterns in Montclair, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Montclair, April typically has an average temperature of 14°C (58°F), with highs reaching up to 33°C (92°F) and lows dropping to around -1°C (31°F).

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

April Precipitation in Montclair

In Montclair in April, the precipitation amount is 101 mm (4.0 in) spread over the course of 10 days.

April Precipitation Trends in Montclair

The chart displays monthly precipitation patterns in Montclair, 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 Montclair, April typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 10 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in Montclair

In Montclair in April, humidity is 81%. With an average temperature of 14°C (58°F), this humidity feels like a warm blanket wrapping around you, making outdoor adventures sticky and challenging, while also providing a lush, vibrant atmosphere perfect for exploring.

April Average Humidity in Montclair

This chart illustrates the average monthly humidity levels in Montclair, 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 Montclair is approximately 81%, 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 Montclair

In Montclair in April, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Montclair.

Maximum UV Index Levels in Montclair for April

The chart shows the monthly maximum UV Index (UVI) for Montclair 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 Montclair typically reaches 9, which falls under the very high exposure category.

Data source: Montclair 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 Montclair Compares to Other Months

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

This table compares monthly weather conditions in Montclair, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (38°F)	61 mm (2.4 inches)	84%	moderate
February Weather	6°C (43°F)	93 mm (3.6 inches)	83%	moderate
March Weather	9°C (48°F)	79 mm (3.1 inches)	83%	high
April Weather	14°C (58°F)	101 mm (4.0 inches)	81%	very high
May Weather	20°C (67°F)	117 mm (4.6 inches)	78%	very high
June Weather	24°C (76°F)	108 mm (4.3 inches)	79%	very high
July Weather	27°C (81°F)	108 mm (4.2 inches)	74%	very high
August Weather	26°C (78°F)	153 mm (6.0 inches)	72%	very high
September Weather	23°C (73°F)	93 mm (3.6 inches)	75%	very high
October Weather	17°C (63°F)	109 mm (4.3 inches)	81%	high
November Weather	9°C (49°F)	78 mm (3.1 inches)	85%	moderate
December Weather	6°C (42°F)	89 mm (3.5 inches)	84%	moderate