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 April begins, there is an increase in the average high-temperature, moving from a frosty 43.3°F (6.3°C) in March to a mild 56.3°F (13.5°C). During the month of April, the temperature generally drops to a low average of 39.9°F (4.4°C).Humidity
In Coster, the average relative humidity in April is 73%.Rainfall
In Coster, in April, during 15.9 rainfall days, 3.43" (87mm) of precipitation is typically accumulated. In Coster, during the entire year, the rain falls for 148.3 days and collects up to 31.02" (788mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Coster, in April, snow falls for 2.3 days, with typically accumulated 2.01" (51mm) of snow. Throughout the year, there are 53.2 snowfall days, and 22.4" (569mm) of snow is accumulated.Daylight
In Coster, the average length of the day in April is 13h and 25min.On the first day of April, sunrise is at 6:51 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 8:10 pm CDT.
Sunshine
The average sunshine in April is 7.6h.UV index
In Coster, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In April, the maximum UV index of 3 translates into these guidelines:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the average humidity in April in Coster?
How many days does it rain in April?
How many days does it snow in April?
What is the average length of the day in April?
When is the sunrise / sunset in April?
How many hours of sunshine does Coster have in April?
What is the UV index reading in April?
Average temperature in April
Coster, IA
- Average high temperature in April: 56.3°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (24.1°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 (11.8°F).
Average pressure in April
Coster, IA
- Average pressure in April: 29.93"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in April
Coster, IA
- Average wind speed in April: 10.8mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in April
Coster, IA
- Average humidity in April: 73%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Coster, IA
- Average rainfall in April: 3.43"
The wettest month (with the highest rainfall) is June (4.76").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in April
Coster, IA
- Average rainfall days in April: 15.9 days
The month with the highest number of rainy days is June (20.1 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in April
Coster, IA
- Average snowfall in April: 2.01"
The month with the highest snowfall is February (5.51").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Coster, IA
- Average snowfall days in April: 2.3 days
The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Coster, IA
- Average daylight in April: 13h and 2min
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 4min
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 48min).
Average sunshine days in April
Coster, IA
- Average sunshine days in April: 11.1 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (7.8 days).
Average UV index in April
Coster, IA
- Average UV index in April: 3
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in April
Coster, IA
- Average cloud cover in April: 48
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in April
Coster, IA
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Coster, Iowa, USA
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