April weather forecastVacaville, CA
April
Weather in April
April in Vacaville, California, is an agreeable spring month, with an average temperature ranging between max 69.4°F (20.8°C) and min 46.2°F (7.9°C).Temperature
April introduces a marginal temperature uplift, with average high-temperatures adjusting from March's comfortable 62.8°F (17.1°C) to an agreeable 69.4°F (20.8°C). Vacaville reports a steady low-temperature average of 46.2°F (7.9°C) throughout April, revealing a large deviation from the daytime high.Humidity
The average relative humidity in April in Vacaville is 68%.Rainfall
In April, in Vacaville, the rain falls for 5.7 days. Throughout April, 0.31" (8mm) of precipitation is accumulated. In Vacaville, during the entire year, the rain falls for 47.1 days and collects up to 4.17" (106mm) of precipitation.Daylight
In April, the average length of the day in Vacaville is 13h and 14min.On the first day of April in Vacaville, sunrise is at 6:51 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 7:59 pm PDT.
Sunshine
In April, the average sunshine in Vacaville is 10.1h.UV index
The average daily maximum UV index in April in Vacaville is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In April, the maximum UV index of 5 transforms into these recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Vacaville, CA
- Average high temperature in April: 69.4°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is December (54.7°F).
- Average low temperature in April: 46.2°F
The month with the highest average low temperature is September (58.1°F).
The coldest months (with the lowest average low temperature) are January and December (41.4°F).
Average pressure in April
Vacaville, CA
- Average pressure in April: 30.02"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in April
Vacaville, CA
- Average wind speed in April: 6.2mph
The windiest months (with the highest average wind speed) are May and June (6.8mph).
The calmest months (with the lowest average wind speed) are January and November (4.7mph).
Average humidity in April
Vacaville, CA
- Average humidity in April: 68%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is September (48%).
Average rainfall in April
Vacaville, CA
- Average rainfall in April: 0.31"
The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are July, August and September (0.04").
Average rainfall days in April
Vacaville, CA
- Average rainfall days in April: 5.7 days
The month with the highest number of rainy days is March (7.2 days).
The month with the least rainy days is August (1 days).
Average daylight in April /
Average sunshine in April
Vacaville, 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 30min).
- Average sunshine in April: 10h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in April
Vacaville, CA
- Average sunshine days in April: 23.4 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is February (21.5 days).
Average UV index in April
Vacaville, 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
Vacaville, CA
- Average cloud cover in April: 28
The months with the most cloud cover are March and December (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in April
Vacaville, 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).
