April Weather in Summit, United States

Last updated: June 24, 2025

In April, the average temperature in Summit, United States hovers around 9°C (48°F). Expect minimums dipping to 1°C (33°F) and maximums reaching 23°C (75°F). The month brings about 120 mm (4.7 in) of precipitation spread across 15 days, making for high humidity levels at 84%. Prepare for a blend of coolness and moisture as you plan your visit!

April Temperature in Summit

In April in Summit, the average temperature is 9°C (48°F), with maximums reaching 23°C (75°F) and minimums dropping to as low as 1°C (33°F). This climate makes it a great time for travelers to enjoy mild weather and explore the outdoors with comfortable layering options.

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

The chart illustrates April temperature patterns in Summit, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Summit, April typically has an average temperature of 9°C (48°F), with highs reaching up to 23°C (75°F) and lows dropping to around 1°C (33°F).

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

April Precipitation in Summit

In Summit in April, the precipitation amount is 120 mm (4.7 in) spread over 15 days.

April Precipitation Trends in Summit

The chart displays monthly precipitation patterns in Summit, 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 Summit, April typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 15 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 Summit

In Summit in April, humidity is 84%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that envelops you, making it essential to dress in layers and stay active, as the moisture in the air can quickly lead to discomfort while traveling.

April Average Humidity in Summit

This chart illustrates the average monthly humidity levels in Summit, 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 Summit is approximately 84%, 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 Summit

In Summit in April, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Summit, you can refer to this Hourly UV Index in Summit.

Maximum UV Index Levels in Summit for April

The chart shows the monthly maximum UV Index (UVI) for Summit 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 Summit typically reaches 6, which falls under the high exposure category.

Data source: Summit 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 Summit Compares to Other Months

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

This table compares monthly weather conditions in Summit, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	187 mm (7.4 inches)	86%	low
February Weather	4°C (40°F)	193 mm (7.6 inches)	86%	moderate
March Weather	6°C (44°F)	138 mm (5.4 inches)	87%	moderate
April Weather	9°C (48°F)	120 mm (4.7 inches)	84%	high
May Weather	13°C (55°F)	69 mm (2.7 inches)	81%	very high
June Weather	16°C (60°F)	64 mm (2.5 inches)	82%	very high
July Weather	18°C (65°F)	13 mm (0.5 inches)	79%	very high
August Weather	19°C (66°F)	16 mm (0.6 inches)	63%	very high
September Weather	16°C (61°F)	97 mm (3.8 inches)	62%	high
October Weather	10°C (51°F)	153 mm (6.0 inches)	83%	moderate
November Weather	7°C (46°F)	193 mm (7.6 inches)	89%	moderate
December Weather	5°C (41°F)	208 mm (8.2 inches)	88%	low