April weather forecastO'Neill, IA
April
Weather in April
April is a cool spring month in O'Neill, Iowa, with an average temperature ranging between min 38.7°F (3.7°C) and max 55°F (12.8°C).Temperature
The shift from March to April brings an increase in the average high-temperature, moving from a frosty 42.8°F (6°C) to a fresh 55°F (12.8°C). Nighttime temperatures in O'Neill, Iowa, consistently average a cold 38.7°F (3.7°C) during April.Humidity
In O'Neill, Iowa, the average relative humidity in April is 77%.Rainfall
In April, in O'Neill, the rain falls for 15.5 days. Throughout April, 2.44" (62mm) of precipitation is accumulated. Throughout the year, there are 139.6 rainfall days, and 24.92" (633mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 2.6 snowfall days, in April, O'Neill aggregates 1.06" (27mm) of snow. In O'Neill, during the entire year, snow falls for 52.1 days and aggregates up to 16.54" (420mm) of snow.Daylight
The average length of the day in April is 13h and 25min.On the first day of April, sunrise is at 6:44 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:03 pm CDT.
Sunshine
The average sunshine in April is 7.4h.UV index
The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 3 during April leads to these advisories:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
O'Neill, IA
- Average high temperature in April: 55°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in April: 38.7°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in April
O'Neill, IA
- Average pressure in April: 29.94"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
O'Neill, IA
- Average wind speed in April: 10.3mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in April
O'Neill, IA
- Average humidity in April: 77%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (75%).
Average rainfall in April
O'Neill, IA
- Average rainfall in April: 2.44"
The wettest months (with the highest rainfall) are May and June (3.54").
The driest month (with the least rainfall) is December (0.98").
Average rainfall days in April
O'Neill, IA
- Average rainfall days in April: 15.5 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in April
O'Neill, IA
- Average snowfall in April: 1.06"
The month with the highest snowfall is January (4.29").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
O'Neill, IA
- Average snowfall days in April: 2.6 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
O'Neill, IA
- Average daylight in April: 13h and 24min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in April: 7h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in April
O'Neill, IA
- Average sunshine days in April: 11.3 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in April
O'Neill, IA
- Average UV index in April: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in April
O'Neill, IA
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in April
O'Neill, IA
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
