April weather forecastOnslow, IA
April
Weather in April
April is a moderate spring month in Onslow, Iowa, with an average temperature varying between 39.9°F (4.4°C) and 56.1°F (13.4°C).Temperature
Onslow's transition into April is marked by a rise in the average high-temperature, advancing from a chilly 44.2°F (6.8°C) in March to a moderate 56.1°F (13.4°C). During April, Onslow experiences an average low-temperature of 39.9°F (4.4°C) at night.Humidity
The average relative humidity in April in Onslow is 76%.Rainfall
In April, the rain falls for 16 days. Throughout April, 3.15" (80mm) of precipitation is accumulated. Throughout the year, in Onslow, there are 142.5 rainfall days, and 28.27" (718mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows in Onslow. During 1.6 snowfall days, in April, Onslow aggregates 0.63" (16mm) of snow. Throughout the year, in Onslow, there are 43.2 snowfall days, and 17.17" (436mm) of snow is accumulated.Daylight
In Onslow, Iowa, the average length of the day in April is 13h and 23min.On the first day of April, sunrise is at 6:45 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:02 pm CDT.
Sunshine
In April, the average sunshine is 7.5h.UV index
In April, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In April, the maximum UV index of 4 suggests these recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Onslow, IA
- Average high temperature in April: 56.1°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in April: 39.9°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in April
Onslow, IA
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in April
Onslow, IA
- Average wind speed in April: 10.7mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in April
Onslow, IA
- Average humidity in April: 76%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in April
Onslow, IA
- Average rainfall in April: 3.15"
The wettest month (with the highest rainfall) is May (4.25").
The driest months (with the least rainfall) are January and February (1.26").
Average rainfall days in April
Onslow, IA
- Average rainfall days in April: 16 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in April
Onslow, IA
- Average snowfall in April: 0.63"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Onslow, IA
- Average snowfall days in April: 1.6 days
The month with the highest number of snowfall days is January (12.1 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
Onslow, IA
- Average daylight in April: 13h and 24min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 7h and 30min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in April
Onslow, IA
- Average sunshine days in April: 11.1 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in April
Onslow, 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
Onslow, IA
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in April
Onslow, IA
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
