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
The arrival of April brings a significant change in White Rock's weather, with average high-temperatures climbing from March's cold 37.6°F (3.1°C) to a fresh 53.1°F (11.7°C). White Rock's average low-temperature is measured at a cold 37°F (2.8°C) during April.Humidity
In White Rock, the average relative humidity in April is 67%.Rainfall
In White Rock, during April, the rain falls for 10.8 days and regularly aggregates up to 1.65" (42mm) of precipitation. In White Rock, during the entire year, the rain falls for 102 days and collects up to 19.17" (487mm) of precipitation.Snowfall
Months with snowfall in White Rock, South Dakota, are January through May, October through December. In White Rock, South Dakota, in April, snow falls for 3.9 days, with typically accumulated 2.32" (59mm) of snow. Throughout the year, there are 54.3 snowfall days, and 19.17" (487mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 35min.On the first day of the month, sunrise is at 7:04 am and sunset at 7:55 pm. On the last day of April, sunrise is at 6:13 am and sunset at 8:33 pm CDT.
Sunshine
In White Rock, the average sunshine in April is 7.6h.UV index
In April, the average daily maximum UV index in White Rock is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 3 in April converts into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures in White Rock?
What is the average humidity in April in White Rock?
How many days does it rain in April in White Rock?
How much does it snow in White Rock in April?
What is the average length of the day in April in White Rock?
When is the sunrise / sunset in April in White Rock?
How long on average sun shines in April in White Rock?
What is the UV index reading in April in White Rock?
Average temperature in April
White Rock, SD
- Average high temperature in April: 53.1°F
The warmest months (with the highest average high temperature) are July and August (81.3°F).
The month with the lowest average high temperature is January (18.7°F).
- Average low temperature in April: 37°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (4.8°F).
Average pressure in April
White Rock, SD
- Average pressure in April: 29.96"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in April
White Rock, SD
- Average wind speed in April: 10.6mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in April
White Rock, SD
- Average humidity in April: 67%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is September (65%).
Average rainfall in April
White Rock, SD
- Average rainfall in April: 1.65"
The wettest months (with the highest rainfall) are June and July (3.03").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in April
White Rock, SD
- Average rainfall days in April: 10.8 days
The month with the highest number of rainy days is June (15.4 days).
The month with the least rainy days is February (2 days).
Average snowfall in April
White Rock, SD
- Average snowfall in April: 2.32"
The month with the highest snowfall is December (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
White Rock, SD
- Average snowfall days in April: 3.9 days
The month with the highest number of snowfall days is January (12.3 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 Rock, SD
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in April: 7h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in April
White Rock, SD
- Average sunshine days in April: 14.6 days
The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in April
White Rock, SD
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
White Rock, SD
- Average cloud cover in April: 48
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in April
White Rock, SD
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
White Rock, South Dakota, USA
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