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
As March transitions into April, a change in temperatures is observed, with average highs moving from a frosty 47.8°F (8.8°C) to a refreshing 59.4°F (15.2°C). In the month of April, Onawa witnesses a consistent average low-temperature of 42.1°F (5.6°C).Humidity
The months with the lowest humidity in Onawa, Iowa, are April and October, with an average relative humidity of 66%.Rainfall
In April, the rain falls for 13.4 days. Throughout April, 2.17" (55mm) of precipitation is accumulated. In Onawa, during the entire year, the rain falls for 117.6 days and collects up to 21.89" (556mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Onawa. April is the last month it regularly snows in Onawa. During 1.5 snowfall days, in April, Onawa aggregates 1.14" (29mm) of snow. Throughout the year, in Onawa, there are 32.9 snowfall days, and 11.69" (297mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 23min.On the first day of the month, sunrise is at 7:05 am and sunset at 7:50 pm. On the last day of April, in Onawa, sunrise is at 6:20 am and sunset at 8:22 pm CDT.
Sunshine
In Onawa, the average sunshine in April is 8.1h.UV index
In April, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 4 in April leads to these guidelines:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April in Onawa?
What are the least humid months in Onawa?
What is the average humidity in April in Onawa?
How many days does it rain in April in Onawa?
What is the last month it snows in Onawa?
How many hours of daylight does Onawa have in April?
When is the sunrise / sunset in April in Onawa?
How many hours of sunshine does Onawa have in April?
What is the UV index intensity in April in Onawa?
Average temperature in April
Onawa, IA
- Average high temperature in April: 59.4°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in April: 42.1°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in April
Onawa, IA
- Average pressure in April: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in April
Onawa, IA
- Average wind speed in April: 10.9mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in April
Onawa, IA
- Average humidity in April: 66%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are April and October (66%).
Average rainfall in April
Onawa, IA
- Average rainfall in April: 2.17"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in April
Onawa, IA
- Average rainfall days in April: 13.4 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in April
Onawa, IA
- Average snowfall in April: 1.14"
The month with the highest snowfall is February (3.03").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Onawa, IA
- Average snowfall days in April: 1.5 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Onawa, IA
- Average daylight in April: 13h and 2min
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: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in April
Onawa, IA
- Average sunshine days in April: 14 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (12 days).
Average UV index in April
Onawa, IA
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in April
Onawa, IA
- Average cloud cover in April: 43
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in April
Onawa, IA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Onawa, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location