April Weather in Summit, United States

Last updated: June 24, 2025

The average temperature in Summit, United States during April reaches a pleasant 21°C (70°F). However, it can vary greatly, with minimums dipping to 5°C (41°F) and maximums soaring to 37°C (98°F). Expect minimal precipitation at just 3 mm (0.1 in) spread over 0 days, while the average humidity sits comfortably at 43%. Enjoy the ideal climate!

April Temperature in Summit

In April in Summit, the average temperature is 21°C (70°F). The maximum can reach 37°C (98°F), and the minimum can be as low as 5°C (41°F). This diverse temperature range suggests that travelers should pack accordingly for both warm days and cooler evenings.

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 21°C (70°F), with highs reaching up to 37°C (98°F) and lows dropping to around 5°C (41°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 3 mm (0.1 in) during a total of 0 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 3 mm (0.1 inches) of precipitation spread over approximately 0 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 Summit

In Summit in April humidity is 43%. With an average temperature of 21°C (70°F), this humidity feels like a comfortable balance, making it pleasant for traveling as you can explore the surroundings without the discomfort of excessive moisture in the air.

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 43%, 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 reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the 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 11, which falls under the extreme 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	11°C (52°F)	19 mm (0.7 inches)	74%	moderate
February Weather	12°C (55°F)	29 mm (1.2 inches)	71%	high
March Weather	16°C (61°F)	14 mm (0.5 inches)	60%	very high
April Weather	21°C (70°F)	3 mm (0.1 inches)	43%	extreme
May Weather	25°C (77°F)	3 mm (0.1 inches)	32%	extreme
June Weather	30°C (87°F)	7 mm (0.3 inches)	28%	extreme
July Weather	30°C (87°F)	50 mm (2.0 inches)	38%	extreme
August Weather	30°C (86°F)	42 mm (1.7 inches)	60%	extreme
September Weather	28°C (82°F)	31 mm (1.2 inches)	72%	extreme
October Weather	22°C (72°F)	10 mm (0.4 inches)	66%	very high
November Weather	17°C (63°F)	13 mm (0.5 inches)	74%	high
December Weather	12°C (53°F)	23 mm (0.9 inches)	81%	moderate