April weather forecastAmerican Canyon, CA
April
Weather in April
April, the same as March, is another enjoyable spring month in American Canyon, California, with an average temperature fluctuating between 67.1°F (19.5°C) and 46°F (7.8°C).Temperature
American Canyon's transition into April is marked by a minor temperature shift, moving from a comfortable 61.3°F (16.3°C) in March to a still refreshing 67.1°F (19.5°C). The low-temperature average for American Canyon during April stands at a frosty 46°F (7.8°C).Humidity
In American Canyon, the average relative humidity in April is 69%.Rainfall
In American Canyon, in April, during 7.3 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. Throughout the year, there are 68.2 rainfall days, and 11.93" (303mm) of precipitation is accumulated.Daylight
In American Canyon, the average length of the day in April is 13h and 13min.On the first day of April, sunrise is at 6:52 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 7:59 pm PDT.
Sunshine
The average sunshine in April is 10.2h.UV index
The average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 5 during April leads to these advisories:
Undertake precautions - Guarding against sun damage is counselled. Around midday, solar radiation is most harmful; hence, exposure should be limited. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
American Canyon, CA
- Average high temperature in April: 67.1°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is December (54.9°F).
- Average low temperature in April: 46°F
The month with the highest average low temperature is August (56.5°F).
The coldest months (with the lowest average low temperature) are January and December (42.3°F).
Average pressure in April
American Canyon, CA
- Average pressure in April: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
American Canyon, CA
- Average wind speed in April: 6.2mph
The windiest month (with the highest average wind speed) is May (6.6mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).
Average humidity in April
American Canyon, CA
- Average humidity in April: 69%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is September (58%).
Average rainfall in April
American Canyon, CA
- Average rainfall in April: 0.67"
The wettest month (with the highest rainfall) is February (2.32").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in April
American Canyon, CA
- Average rainfall days in April: 7.3 days
The month with the highest number of rainy days is March (11.9 days).
The month with the least rainy days is August (0.9 days).
Average daylight in April /
Average sunshine in April
American Canyon, CA
- Average daylight in April: 13h and 12min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in April: 10h and 12min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in April
American Canyon, CA
- Average sunshine days in April: 21.8 days
The months with the most sunshine days are July and August (29.1 days).
The month with the least sunshine days is March (18.3 days).
Average UV index in April
American Canyon, CA
- Average UV index in April: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in April
American Canyon, CA
- Average cloud cover in April: 28
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in April
American Canyon, CA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
