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 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
Riverside's average high-temperature in April sits at a still agreeable 73°F (22.8°C), showing little difference from the previous month. The significant decline in Riverside's temperature, from day to night, averages of 50.5°F (10.3°C) in April.Humidity
In April, the average relative humidity is 53%.Rainfall
In Riverside, in April, during 5.8 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. Throughout the year, there are 49 rainfall days, and 7.32" (186mm) of precipitation is accumulated.Snowfall
In Riverside, snow does not fall in January, March through December.Daylight
In April, the average length of the day in Riverside is 13h and 4min.On the first day of April, sunrise is at 6:35 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:32 pm PDT.
Sunshine
The average sunshine in April in Riverside is 11h.UV index
The average daily maximum UV index in April in Riverside is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In April, the maximum UV index of 5 translates into these guidelines:
Heed the precautions - Suggestions to avoid sunburn are made. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Riverside?
What is the average humidity in April in Riverside?
How much does it rain in Riverside in April?
When it does not snow in Riverside?
How many hours of daylight does Riverside have in April?
When is the sunrise / sunset in April in Riverside?
How long on average sun shines in April in Riverside?
What is the UV index reading in April in Riverside?
Average temperature in April
Riverside, CA
- Average high temperature in April: 73°F
The warmest month (with the highest average high temperature) is August (91.2°F).
The month with the lowest average high temperature is December (63.3°F).
- Average low temperature in April: 50.5°F
The month with the highest average low temperature is August (66.4°F).
The coldest month (with the lowest average low temperature) is December (45.9°F).
Average pressure in April
Riverside, CA
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in April
Riverside, CA
- Average wind speed in April: 5.5mph
The windiest month (with the highest average wind speed) is May (5.6mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity in April
Riverside, CA
- Average humidity in April: 53%
The month with the highest relative humidity is May (56%).
The month with the lowest relative humidity is August (43%).
Average rainfall in April
Riverside, CA
- Average rainfall in April: 0.63"
The wettest months (with the highest rainfall) are February and December (1.61").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in April
Riverside, CA
- Average rainfall days in April: 5.8 days
The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1.1 days).
Average snowfall days in April
Riverside, CA
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in April /
Average sunshine in April
Riverside, 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 July and August (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 48min).
Average sunshine days in April
Riverside, CA
- Average sunshine days in April: 23.6 days
The month with the most sunshine days is June (27.9 days).
The month with the least sunshine days is February (21.6 days).
Average UV index in April
Riverside, CA
- Average UV index in April: 5
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in April
Riverside, CA
- Average cloud cover in April: 20
The months with the most cloud cover are February and March (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in April
Riverside, 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).
Riverside, California, USA
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