April weather forecastWhite River, SD
April
Weather in April
April is a refreshing spring month in White River, South Dakota, with an average temperature ranging between max 56.7°F (13.7°C) and min 39.2°F (4°C).Temperature
April brings a rise in White River's average high-temperature, moving from a frosty 46.6°F (8.1°C) in March to a refreshing 56.7°F (13.7°C). Throughout April, an average nighttime temperature of 39.2°F (4°C) is experienced.Humidity
In White River, the average relative humidity in April is 65%.Rainfall
In White River, during April, the rain falls for 11.8 days and regularly aggregates up to 1.77" (45mm) of precipitation. In White River, during the entire year, the rain falls for 103.9 days and collects up to 16.85" (428mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In April, it is snowing for 2.8 days. Throughout April, 1.73" (44mm) of snow is accumulated. Throughout the year, there are 39.7 snowfall days, and 14.45" (367mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 28min.On the first day of April, sunrise is at 7:22 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 8:44 pm CDT.
Sunshine
The average sunshine in April is 8h.UV index
The average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 4 during April translates into the following directions:
Take necessary precautions - Defending against sun damage is advocated. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
White River, SD
- Average high temperature in April: 56.7°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in April: 39.2°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).
Average pressure in April
White River, SD
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in April
White River, SD
- Average wind speed in April: 11.9mph
The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (9.8mph).
Average humidity in April
White River, SD
- Average humidity in April: 65%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are August and September (57%).
Average rainfall in April
White River, SD
- Average rainfall in April: 1.77"
The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in April
White River, SD
- Average rainfall days in April: 11.8 days
The month with the highest number of rainy days is June (15.3 days).
The months with the least rainy days are January and February (2.7 days).
Average snowfall in April
White River, SD
- Average snowfall in April: 1.73"
The month with the highest snowfall is December (3.19").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
White River, SD
- Average snowfall days in April: 2.8 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
White River, SD
- Average daylight in April: 13h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in April: 8h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in April
White River, SD
- Average sunshine days in April: 13.7 days
The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in April
White River, SD
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
White River, SD
- Average cloud cover in April: 42
The month with the most cloud cover is January (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in April
White River, SD
- 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).
