April weather forecastCastella, CA
April
Weather in April
April is a refreshing spring month in Castella, California, with an average temperature varying between 56.1°F (13.4°C) and 33.4°F (0.8°C).Temperature
The start of April is characterized by a subtle increase in the average high-temperature, transitioning from a chilly 47.5°F (8.6°C) in March to a mild 56.1°F (13.4°C). A significant drop from the day's peak to an average low-temperature of 33.4°F (0.8°C) is noted during the nights in April in Castella.Humidity
In Castella, the average relative humidity in April is 71%.Rainfall
In April, the rain falls for 14.3 days. Throughout April, 2.6" (66mm) of precipitation is accumulated. Throughout the year, there are 113.4 rainfall days, and 31.3" (795mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Castella. In Castella, California, in April, during 1.8 snowfall days, 1.93" (49mm) of snow is typically accumulated. Throughout the year, there are 28.7 snowfall days, and 45.51" (1156mm) of snow is accumulated.Daylight
In Castella, the average length of the day in April is 13h and 21min.On the first day of April, sunrise is at 6:50 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 8:05 pm PDT.
Sunshine
In Castella, the average sunshine in April is 10h.UV index
The average daily maximum UV index in April in Castella is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 3 in April transforms into this advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Castella, CA
- Average high temperature in April: 56.1°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (41°F).
- Average low temperature in April: 33.4°F
The months with the highest average low temperature are July and August (51.4°F).
The coldest month (with the lowest average low temperature) is December (26.8°F).
Average pressure in April
Castella, CA
- Average pressure in April: 30.03"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in April
Castella, CA
- Average wind speed in April: 5.6mph
The windiest month (with the highest average wind speed) is March (5.7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in April
Castella, CA
- Average humidity in April: 71%
The month with the highest relative humidity is March (81%).
The month with the lowest relative humidity is August (44%).
Average rainfall in April
Castella, CA
- Average rainfall in April: 2.6"
The wettest month (with the highest rainfall) is March (5.55").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in April
Castella, CA
- Average rainfall days in April: 14.3 days
The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (2.7 days).
Average snowfall in April
Castella, CA
- Average snowfall in April: 1.93"
The month with the highest snowfall is January (12.6").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Castella, CA
- Average snowfall days in April: 1.8 days
The month with the highest number of snowfall days is December (6.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Castella, CA
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 10h and 0min
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 12min).
Average sunshine days in April
Castella, CA
- Average sunshine days in April: 13 days
The month with the most sunshine days is August (25.7 days).
The month with the least sunshine days is March (11.1 days).
Average UV index in April
Castella, CA
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Castella, CA
- Average cloud cover in April: 34
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in April
Castella, CA
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
