April weather forecastStanley, IA
April
Weather in April
April in Stanley, Iowa, is a mild spring month, with an average temperature varying between 55.8°F (13.2°C) and 39.4°F (4.1°C).Temperature
April's onset is marked by a temperature increase, moving from an icy 42.4°F (5.8°C) in March to a moderate 55.8°F (13.2°C). Stanley experiences a mean low-temperature of 39.4°F (4.1°C) during April.Humidity
In Stanley, the average relative humidity in April is 74%.Rainfall
In April, the rain falls for 15 days. Throughout April, 3.23" (82mm) of precipitation is accumulated. Throughout the year, there are 135.7 rainfall days, and 29.65" (753mm) of precipitation is accumulated.Snowfall
Months with snowfall in Stanley are January through May, October through December. In April, in Stanley, it is snowing for 2.3 days. Throughout April, 1.65" (42mm) of snow is accumulated. Throughout the year, in Stanley, Iowa, there are 42.1 snowfall days, and 18.39" (467mm) of snow is accumulated.Daylight
In April, the average length of the day in Stanley is 13h and 25min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:33 pm. On the last day of April, in Stanley, sunrise is at 6:01 am and sunset at 8:06 pm CDT.
Sunshine
The average sunshine in April is 7.5h.UV index
In Stanley, Iowa, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index, 3 in April, converts into the following recommendations:
Take precautions - Protection against sunburn is recommended. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Stanley, IA
- Average high temperature in April: 55.8°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in April: 39.4°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in April
Stanley, IA
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in April
Stanley, IA
- Average wind speed in April: 10.9mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in April
Stanley, IA
- Average humidity in April: 74%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (73%).
Average rainfall in April
Stanley, IA
- Average rainfall in April: 3.23"
The wettest month (with the highest rainfall) is June (5").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in April
Stanley, IA
- Average rainfall days in April: 15 days
The month with the highest number of rainy days is June (19.4 days).
The month with the least rainy days is January (3.5 days).
Average snowfall in April
Stanley, IA
- Average snowfall in April: 1.65"
The month with the highest snowfall is February (5.08").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Stanley, IA
- Average snowfall days in April: 2.3 days
The month with the highest number of snowfall days is February (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Stanley, 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 30min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in April
Stanley, IA
- Average sunshine days in April: 12.3 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is June (7.8 days).
Average UV index in April
Stanley, IA
- Average UV index in April: 3
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in April
Stanley, IA
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in April
Stanley, 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).
