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
A soft shift in the average high-temperature is noticeable in April, transitioning from a pleasant 70.3°F (21.3°C) in March to a warm 77.9°F (25.5°C). The low-temperature averages to a refreshing 58.3°F (14.6°C) during the nights of April.Humidity
In April, the average relative humidity is 22%.Rainfall
In April, the rain falls for 3.2 days. Throughout April, 0.12" (3mm) of precipitation is accumulated. Throughout the year, there are 44 rainfall days, and 4.21" (107mm) of precipitation is accumulated.Snowfall
January through November are months without snowfall.Daylight
In April, the average length of the day is 13h and 6min.On the first day of April, sunrise is at 6:23 am and sunset at 7:00 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 7:23 pm MST.
Sunshine
In April, the average sunshine is 10.3h.UV index
In April, the average daily maximum UV index in Riviera is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 6 in April interprets into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What is the average humidity in April in Riviera?
How much does it rain in April?
When it does not snow?
What is the average length of the day in April?
When are sunrise and sunset in April?
How many hours of sunshine does Riviera have in April?
What is the UV index intensity in April?
Average temperature in April
Riviera, AZ
- Average high temperature in April: 77.9°F
The warmest month (with the highest average high temperature) is July (100.8°F).
The month with the lowest average high temperature is December (56.3°F).
- Average low temperature in April: 58.3°F
The month with the highest average low temperature is August (81.5°F).
The coldest month (with the lowest average low temperature) is December (43.5°F).
Average pressure in April
Riviera, AZ
- Average pressure in April: 29.86"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.76"Hg).
Average wind speed in April
Riviera, AZ
- Average wind speed in April: 10.1mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is September (7.6mph).
Average humidity in April
Riviera, AZ
- Average humidity in April: 22%
The month with the highest relative humidity is January (42%).
The month with the lowest relative humidity is June (14%).
Average rainfall in April
Riviera, AZ
- Average rainfall in April: 0.12"
The wettest month (with the highest rainfall) is December (0.67").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in April
Riviera, AZ
- Average rainfall days in April: 3.2 days
The month with the highest number of rainy days is July (5.9 days).
The month with the least rainy days is June (1.1 days).
Average snowfall days in April
Riviera, AZ
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in April /
Average sunshine in April
Riviera, AZ
- Average daylight in April: 13h and 1min
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: 10h and 2min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in April
Riviera, AZ
- Average sunshine days in April: 26.9 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is July (20.3 days).
Average UV index in April
Riviera, AZ
- Average UV index in April: 6
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in April
Riviera, AZ
- Average cloud cover in April: 13
The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in April
Riviera, AZ
- 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).
Riviera, Arizona, USA
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