April weather forecastRiverside, IA
April
Weather in April
April in Riverside, Iowa, is a moderate spring month, with an average temperature ranging between min 42.4°F (5.8°C) and max 59.4°F (15.2°C).Temperature
As Riverside, Iowa, welcomes April, the average high-temperature sees a rise, transitioning from a frosty 46.9°F (8.3°C) in March to a mild 59.4°F (15.2°C). Throughout April, a steady low-temperature average of 42.4°F (5.8°C) is noted.Humidity
In Riverside, the average relative humidity in April is 74%.Rainfall
In Riverside, Iowa, during April, the rain falls for 14.8 days and regularly aggregates up to 3.19" (81mm) of precipitation. Throughout the year, there are 144.7 rainfall days, and 30.16" (766mm) of precipitation is accumulated.Snowfall
Months with snowfall in Riverside, Iowa, are January through April, October through December. April is the last month it regularly snows. During 1.1 snowfall days, in April, Riverside aggregates 0.75" (19mm) of snow. Throughout the year, there are 34.4 snowfall days, and 14.61" (371mm) of snow is accumulated.Daylight
In April, the average length of the day in Riverside is 13h and 22min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:32 pm. On the last day of April, sunrise is at 6:03 am and sunset at 8:03 pm CDT.
Sunshine
The average sunshine in April in Riverside is 7.9h.UV index
In Riverside, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 4 in April transforms into this advice:
Put precautions into practice - Guidance to elude sunburn is provided. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Riverside, IA
- Average high temperature in April: 59.4°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in April: 42.4°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in April
Riverside, IA
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in April
Riverside, IA
- Average wind speed in April: 10.6mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in April
Riverside, IA
- Average humidity in April: 74%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Riverside, IA
- Average rainfall in April: 3.19"
The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in April
Riverside, IA
- Average rainfall days in April: 14.8 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in April
Riverside, IA
- Average snowfall in April: 0.75"
The month with the highest snowfall is February (4.57").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Riverside, IA
- Average snowfall days in April: 1.1 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Riverside, IA
- Average daylight in April: 13h and 24min
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 12min).
- Average sunshine in April: 7h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in April
Riverside, IA
- Average sunshine days in April: 12.3 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in April
Riverside, IA
- Average UV index in April: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Riverside, IA
- Average cloud cover in April: 46
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in April
Riverside, IA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
