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 weather displays an average high-temperature of a still comfortable 66.7°F (19.3°C), slightly varied from March's 63.3°F (17.4°C). During April, Simi Valley experiences a consistent low-temperature average of 50.4°F (10.2°C).Humidity
In Simi Valley, the average relative humidity in April is 60%.Rainfall
In Simi Valley, California, in April, during 6.2 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Simi Valley, California, during the entire year, the rain falls for 53.7 days and collects up to 9.61" (244mm) of precipitation.Daylight
In Simi Valley, the average length of the day in April is 13h and 4min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:16 pm. On the last day of April, sunrise is at 6:05 am and sunset at 7:38 pm PDT.
Sunshine
In April, the average sunshine in Simi Valley is 11h.UV index
In Simi Valley, the average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: In April, a regular UV index of 5 translates into these guidelines:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What is the temperature in April in Simi Valley?
What is the average humidity in April in Simi Valley?
How many days does it rain in April in Simi Valley?
How many hours of daylight does Simi Valley have in April?
When is the sunrise / sunset in April in Simi Valley?
How many hours of sunshine does Simi Valley have in April?
What is the UV index reading in April in Simi Valley?
Average temperature in April
Simi Valley, CA
- Average high temperature in April: 66.7°F
The warmest month (with the highest average high temperature) is August (82.2°F).
The month with the lowest average high temperature is December (60.1°F).
- Average low temperature in April: 50.4°F
The month with the highest average low temperature is August (63.1°F).
The coldest month (with the lowest average low temperature) is December (46.4°F).
Average pressure in April
Simi Valley, CA
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).
Average wind speed in April
Simi Valley, CA
- Average wind speed in April: 6.2mph
The windiest month (with the highest average wind speed) is December (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in April
Simi Valley, CA
- Average humidity in April: 60%
The month with the highest relative humidity is June (62%).
The month with the lowest relative humidity is November (50%).
Average rainfall in April
Simi Valley, CA
- Average rainfall in April: 0.63"
The wettest month (with the highest rainfall) is February (1.93").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in April
Simi Valley, CA
- Average rainfall days in April: 6.2 days
The month with the highest number of rainy days is March (8 days).
The months with the least rainy days are June and August (1.5 days).
Average daylight in April /
Average sunshine in April
Simi Valley, 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 0min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).
Average sunshine days in April
Simi Valley, CA
- Average sunshine days in April: 22.9 days
The month with the most sunshine days is August (25.4 days).
The month with the least sunshine days is February (20.9 days).
Average UV index in April
Simi Valley, CA
- Average UV index in April: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in April
Simi Valley, 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 5).
Average visibility in April
Simi Valley, 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).
Simi Valley, California, USA
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