Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April's arrival shows an average high-temperature of a pleasant 69.6°F (20.9°C), hardly different from the previous month. Castaic encounters a substantial decline from its daily high to a low-temperature of 47.5°F (8.6°C) during April nights.Humidity
In Castaic, the average relative humidity in April is 53%.Rainfall
In April, the rain falls for 4.9 days. Throughout April, 0.51" (13mm) of precipitation is accumulated. Throughout the year, there are 42.2 rainfall days, and 6.77" (172mm) of precipitation is accumulated.Daylight
In April, the average length of the day is 13h and 5min.On the first day of April, sunrise is at 6:40 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 7:38 pm PDT.
Sunshine
The average sunshine in April is 11.1h.UV index
In Castaic, the average daily maximum UV index in April 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 suggests these recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April?
What is the average humidity in April?
How many days does it rain in April?
What is the average length of the day in April?
When are sunrise and sunset in April?
How long on average sun shines in April?
How high is the UV index in April?
Average temperature in April
Castaic, CA
- Average high temperature in April: 69.6°F
The warmest month (with the highest average high temperature) is August (88.2°F).
The month with the lowest average high temperature is December (59.5°F).
- Average low temperature in April: 47.5°F
The month with the highest average low temperature is August (63.7°F).
The coldest month (with the lowest average low temperature) is December (42.3°F).
Average pressure in April
Castaic, CA
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in April
Castaic, CA
- Average wind speed in April: 6.6mph
The windiest months (with the highest average wind speed) are January and December (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in April
Castaic, CA
- Average humidity in April: 53%
The month with the highest relative humidity is March (56%).
The months with the lowest relative humidity are August and October (43%).
Average rainfall in April
Castaic, CA
- Average rainfall in April: 0.51"
The wettest month (with the highest rainfall) is December (1.42").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in April
Castaic, CA
- Average rainfall days in April: 4.9 days
The month with the highest number of rainy days is March (6.9 days).
The month with the least rainy days is June (0.7 days).
Average daylight in April /
Average sunshine in April
Castaic, CA
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in April: 11h and 1min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in April
Castaic, CA
- Average sunshine days in April: 25 days
The month with the most sunshine days is August (28.7 days).
The month with the least sunshine days is February (21.5 days).
Average UV index in April
Castaic, 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 February, November and December (UV index 3).
Average cloud cover in April
Castaic, CA
- Average cloud cover in April: 17
The month with the most cloud cover is March (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in April
Castaic, 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).
Castaic, California, USA
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