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
A rise in the average high-temperature is observed during April, moving from a frosty 44.2°F (6.8°C) in March to a moderate 56.1°F (13.4°C). In Green Island, the expected average low-temperature for April is an icy 39.7°F (4.3°C).Humidity
The average relative humidity in April in Green Island is 76%.Rainfall
In April, the rain falls for 16.3 days. Throughout April, 3.39" (86mm) of precipitation is accumulated. Throughout the year, in Green Island, there are 145.6 rainfall days, and 28.9" (734mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 1.6 snowfall days, in April, Green Island aggregates 0.67" (17mm) of snow. Throughout the year, there are 40.1 snowfall days, and 16.61" (422mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 23min.On the first day of April in Green Island, sunrise is at 6:42 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 7:59 pm CDT.
Sunshine
In April, the average sunshine in Green Island is 7.5h.UV index
In Green Island, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In April, a regular UV index of 4 translates into these guidelines:
Take precautions - Protection against skin and eye damage is obliged. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the temperature in April in Green Island?
What is the average humidity in April in Green Island?
How much does it rain in Green Island in April?
What is the last month it snows in Green Island?
What is the average length of the day in April in Green Island?
What time are sunrise and sunset in April in Green Island?
How many hours of sunshine does Green Island have in April?
What is the UV index reading in April in Green Island?
Average temperature in April
Green Island, IA
- Average high temperature in April: 56.1°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 (25.7°F).
- Average low temperature in April: 39.7°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in April
Green Island, 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
Green Island, IA
- Average wind speed in April: 10.3mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in April
Green Island, IA
- Average humidity in April: 76%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (75%).
Average rainfall in April
Green Island, IA
- Average rainfall in April: 3.39"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in April
Green Island, IA
- Average rainfall days in April: 16.3 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in April
Green Island, IA
- Average snowfall in April: 0.67"
The month with the highest snowfall is January (4.61").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Green Island, IA
- Average snowfall days in April: 1.6 days
The month with the highest number of snowfall days is January (10.6 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
Green Island, 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: 7h and 3min
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 42min).
Average sunshine days in April
Green Island, IA
- Average sunshine days in April: 10.6 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (9.5 days).
Average UV index in April
Green Island, IA
- Average UV index in April: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Green Island, IA
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in April
Green Island, 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).
Green Island, Iowa, USA
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