April weather forecastRiver Junction, IA
April
Weather in April
April is a mild spring month in River Junction, Iowa, with temperature in the range of an average low of 42.3°F (5.7°C) and an average high of 58.6°F (14.8°C).Temperature
With the onset of April, River Junction's average high-temperature sees a rise, moving from March's frosty 46.6°F (8.1°C) to a moderate 58.6°F (14.8°C). Throughout April, an average low-temperature of 42.3°F (5.7°C) is expected.Humidity
In April, the average relative humidity is 74%.Rainfall
In River Junction, Iowa, during April, the rain falls for 15.3 days and regularly aggregates up to 3.19" (81mm) of precipitation. In River Junction, during the entire year, the rain falls for 140.4 days and collects up to 29.57" (751mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 1.3 snowfall days, in April, River Junction aggregates 0.67" (17mm) of snow. In River Junction, during the entire year, snow falls for 37.7 days and aggregates up to 16.42" (417mm) of snow.Daylight
In River Junction, Iowa, the average length of the day in April is 13h and 22min.On the first day of April, sunrise is at 6:47 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:03 pm CDT.
Sunshine
In River Junction, the average sunshine in April is 7.8h.UV index
In April, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In April, the maximum UV index of 4 translates into these guidelines:
Heed the precautions - It is counselled to guard against solar damage. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
River Junction, IA
- Average high temperature in April: 58.6°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in April: 42.3°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in April
River Junction, 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
River Junction, IA
- Average wind speed in April: 10.7mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in April
River Junction, 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 (72%).
Average rainfall in April
River Junction, IA
- Average rainfall in April: 3.19"
The wettest month (with the highest rainfall) is May (4.69").
The driest months (with the least rainfall) are January and February (1.34").
Average rainfall days in April
River Junction, IA
- Average rainfall days in April: 15.3 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (5 days).
Average snowfall in April
River Junction, IA
- Average snowfall in April: 0.67"
The month with the highest snowfall is January (5.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
River Junction, IA
- Average snowfall days in April: 1.3 days
The month with the highest number of snowfall days is January (10.9 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
River Junction, 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 48min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in April
River Junction, IA
- Average sunshine days in April: 12.8 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10 days).
Average UV index in April
River Junction, IA
- Average UV index in April: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in April
River Junction, IA
- Average cloud cover in April: 47
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in April
River Junction, 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).
