April Weather in American Canyon, United States

Last updated: June 24, 2025

In April, the average temperature in American Canyon, United States hovers around 15°C (60°F). However, temperatures can vary significantly, dipping as low as 3°C (38°F) and soaring to a maximum of 33°C (92°F). Expect about 33 mm (1.3 in) of precipitation spread over 5 days, contributing to a notable average humidity of 81%.

April Temperature in American Canyon

In April in American Canyon, the average temperature is 15°C (60°F). The maximum can reach 33°C (92°F), and the minimum can be as low as 3°C (38°F). This diverse temperature range makes it advisable for travelers to pack layers to stay comfortable throughout the day.

April Weather in American Canyon: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in American Canyon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In American Canyon, April typically has an average temperature of 15°C (60°F), with highs reaching up to 33°C (92°F) and lows dropping to around 3°C (38°F).

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

April Precipitation in American Canyon

In American Canyon in April, the precipitation amount is 33 mm (1.3 in) over the course of 5 days.

April Precipitation Trends in American Canyon

The chart displays monthly precipitation patterns in American Canyon, 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 American Canyon, April typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 5 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 American Canyon

In American Canyon in April, humidity is 81%. With an average temperature of 15°C (60°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sluggish and draining, which can challenge even the best-prepared traveler.

April Average Humidity in American Canyon

This chart illustrates the average monthly humidity levels in American Canyon, 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 American Canyon 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 American Canyon

In American Canyon 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 American Canyon.

Maximum UV Index Levels in American Canyon for April

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

Data source: American Canyon 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 American Canyon Compares to Other Months

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

This table compares monthly weather conditions in American Canyon, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	119 mm (4.7 inches)	84%	moderate
February Weather	11°C (53°F)	113 mm (4.5 inches)	84%	moderate
March Weather	12°C (55°F)	81 mm (3.2 inches)	83%	high
April Weather	15°C (60°F)	33 mm (1.3 inches)	81%	very high
May Weather	18°C (64°F)	19 mm (0.8 inches)	74%	very high
June Weather	21°C (70°F)	2 mm (0.1 inches)	64%	extreme
July Weather	21°C (70°F)	0 mm (0.0 inches)	44%	extreme
August Weather	21°C (71°F)	0 mm (0.0 inches)	36%	very high
September Weather	21°C (70°F)	1 mm (0.0 inches)	44%	very high
October Weather	18°C (65°F)	29 mm (1.1 inches)	65%	high
November Weather	13°C (56°F)	43 mm (1.7 inches)	84%	moderate
December Weather	10°C (50°F)	91 mm (3.6 inches)	83%	moderate