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 shift into April brings an increase in the average high-temperature, moving from a chilly 45.3°F (7.4°C) in March to a moderate 57.7°F (14.3°C). The average temperature in Riverside during April nights dips to a cold 39°F (3.9°C).Humidity
With an average relative humidity of 76%, April is the least humid month in Riverside.Rainfall
In Riverside, during April, the rain falls for 16.6 days and regularly aggregates up to 2.95" (75mm) of precipitation. Throughout the year, in Riverside, there are 157.2 rainfall days, and 30.43" (773mm) of precipitation is accumulated.Snowfall
Months with snowfall in Riverside are January through May, October through December. In Riverside, during April, snow falls for 0.8 days and regularly aggregates up to 0.24" (6mm) of snow. Throughout the year, there are 33.2 snowfall days, and 16.57" (421mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 20min.On the first day of April, sunrise is at 6:48 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 8:02 pm EDT.
Sunshine
In April, the average sunshine is 7.8h.UV index
The average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A typical high UV index of 3 in April suggests the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
What are April temperatures in Riverside?
What is the least humid month in Riverside?
What is the average humidity in April in Riverside?
How many days does it rain in April in Riverside?
How many days does it snow in April 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 intensity in April in Riverside?
Average temperature in April
Riverside, PA
- Average high temperature in April: 57.7°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in April: 39°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in April
Riverside, PA
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Riverside, PA
- Average wind speed in April: 8mph
The windiest months (with the highest average wind speed) are March and April (8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in April
Riverside, PA
- Average humidity in April: 76%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in April
Riverside, PA
- Average rainfall in April: 2.95"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in April
Riverside, PA
- Average rainfall days in April: 16.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in April
Riverside, PA
- Average snowfall in April: 0.24"
The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Riverside, PA
- Average snowfall days in April: 0.8 days
The month with the highest number of snowfall days is January (9.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Riverside, PA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 7h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in April
Riverside, PA
- Average sunshine days in April: 12.1 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is July (10.5 days).
Average UV index in April
Riverside, PA
- Average UV index in April: 3
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Riverside, PA
- Average cloud cover in April: 48
The months with the most cloud cover are January, February and December (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in April
Riverside, PA
- Average visibility in April: 6mi
The months with the highest visibility are March, April, November and December (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and October (5mi).
Riverside, Pennsylvania, USA
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