April weather forecastOnyx, CA
April
Weather in April
April in Onyx, California, is a refreshing spring month, with an average temperature varying between 60.4°F (15.8°C) and 37.9°F (3.3°C).Temperature
The onset of April introduces a subtle rise in the average high-temperature, nudging from a cool 54.7°F (12.6°C) in March to a moderate 60.4°F (15.8°C). A noteworthy thermal contrast characterizes Onyx's April nights, with temperatures averaging at a cold 37.9°F (3.3°C).Humidity
In April, the average relative humidity is 54%.Rainfall
In Onyx, in April, it is raining for 7.1 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, there are 61 rainfall days, and 11.81" (300mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Onyx. April is the last month it regularly snows in Onyx. During 0.8 snowfall days, in April, Onyx aggregates 0.2" (5mm) of snow. In Onyx, during the entire year, snow falls for 9.1 days and aggregates up to 9.13" (232mm) of snow.Daylight
In April, the average length of the day in Onyx is 13h and 7min.On the first day of April, sunrise is at 6:37 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:39 pm PDT.
Sunshine
In April, the average sunshine is 11.1h.UV index
In Onyx, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 4 in April leads to these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Onyx, CA
- Average high temperature in April: 60.4°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is December (48.7°F).
- Average low temperature in April: 37.9°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is December (30.9°F).
Average pressure in April
Onyx, CA
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in April
Onyx, CA
- Average wind speed in April: 7mph
The windiest months (with the highest average wind speed) are May and June (7.3mph).
The calmest months (with the lowest average wind speed) are January and September (5.4mph).
Average humidity in April
Onyx, CA
- Average humidity in April: 54%
The month with the highest relative humidity is February (59%).
The month with the lowest relative humidity is August (31%).
Average rainfall in April
Onyx, CA
- Average rainfall in April: 1.02"
The wettest month (with the highest rainfall) is January (2.48").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in April
Onyx, CA
- Average rainfall days in April: 7.1 days
The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is June (1.3 days).
Average snowfall in April
Onyx, CA
- Average snowfall in April: 0.2"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Onyx, CA
- Average snowfall days in April: 0.8 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Onyx, CA
- Average daylight in April: 13h and 6min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in April: 11h and 6min
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 42min).
Average sunshine days in April
Onyx, CA
- Average sunshine days in April: 21.3 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (19 days).
Average UV index in April
Onyx, CA
- Average UV index in April: 4
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 2).
Average cloud cover in April
Onyx, CA
- Average cloud cover in April: 19
The month with the most cloud cover is March (Cloud cover 26).
The months with the least cloud cover are August and September (Cloud cover 5).
Average visibility in April
Onyx, 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).
