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 snowfall in April
- Average snowfall 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
The arrival of April coincides with an average high-temperature of a mild 58.5°F (14.7°C), indicating a minimal shift from March's 54.9°F (12.7°C). Throughout the month of April, Rio Dell observes an average nighttime temperature of 41.5°F (5.3°C).Humidity
In April, the average relative humidity is 80%.Rainfall
In Rio Dell, in April, during 12.3 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Rio Dell, during the entire year, the rain falls for 110.9 days and collects up to 28.27" (718mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
The average length of the day in April is 13h and 19min.On the first day of April in Rio Dell, sunrise is at 6:58 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:11 pm PDT.
Sunshine
The average sunshine in April is 8.7h.UV index
The average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: During April, 4 as the daily maximum UV index converts into the following advice:
Prioritize safety - Suggestions to prevent sun damage are offered. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Frequently asked questions
What is the average April temperature in Rio Dell?
What is the average humidity in April in Rio Dell?
How much does it rain in Rio Dell in April?
When it does not snow in Rio Dell?
How many hours of daylight does Rio Dell have in April?
What time are sunrise and sunset in April in Rio Dell?
How many hours of sunshine does Rio Dell have in April?
What is the UV index intensity in April in Rio Dell?
Average temperature in April
Rio Dell, CA
- Average high temperature in April: 58.5°F
The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is December (52.9°F).
- Average low temperature in April: 41.5°F
The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is February (39.7°F).
Average pressure in April
Rio Dell, CA
- Average pressure in April: 30.06"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are August and September (29.96"Hg).
Average wind speed in April
Rio Dell, CA
- Average wind speed in April: 7.4mph
The windiest month (with the highest average wind speed) is June (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in April
Rio Dell, CA
- Average humidity in April: 80%
The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is September (73%).
Average rainfall in April
Rio Dell, CA
- Average rainfall in April: 2.28"
The wettest month (with the highest rainfall) is December (4.96").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in April
Rio Dell, CA
- Average rainfall days in April: 12.3 days
The month with the highest number of rainy days is March (17.3 days).
The months with the least rainy days are July and August (1.8 days).
Average snowfall in April
Rio Dell, CA
- Average snowfall in April: 0"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in April
Rio Dell, CA
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in April /
Average sunshine in April
Rio Dell, CA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 8h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in April
Rio Dell, CA
- Average sunshine days in April: 15.4 days
The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (11.9 days).
Average UV index in April
Rio Dell, CA
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in April
Rio Dell, CA
- Average cloud cover in April: 42
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in April
Rio Dell, CA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).
Rio Dell, California, USA
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