Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
July and August represent the warmest period, with an average high-temperature of 81.3°F (27.4°C).Heat index
During August, the heat index is estimated at 84.2°F (29°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.Be advised, the heat index considers values for conditions in shade and with a light breeze. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
In August, the average relative humidity in White Rock is 67%.Rainfall
In White Rock, South Dakota, in August, during 10.6 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. In White Rock, during the entire year, the rain falls for 102 days and collects up to 19.17" (487mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in August is 14h and 5min.On the first day of August, sunrise is at 6:10 am and sunset at 8:55 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 8:05 pm CDT.
Sunshine
In White Rock, the average sunshine in August is 10.3h.UV index
The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The UV index of 5 during August translates into the following guidance:
Take necessary precautions - Defending against sun damage is advocated. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the hottest in White Rock?
What is the average August temperature in White Rock?
What is the average humidity in August in White Rock?
How many days does it rain in August in White Rock?
When it does not snow in White Rock?
How many hours of daylight does White Rock have in August?
When are sunrise and sunset in August in White Rock?
How long on average sun shines in August in White Rock?
What is the UV index reading in August in White Rock?
Average temperature in August
White Rock, SD
- Average high temperature in August: 81.3°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 August: 59.5°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 August
White Rock, SD
- Average pressure in August: 29.93"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 August
White Rock, SD
- Average wind speed in August: 8.1mph
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 August
White Rock, SD
- Average humidity in August: 67%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is September (65%).
Average rainfall in August
White Rock, SD
- Average rainfall in August: 1.73"
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 August
White Rock, SD
- Average rainfall days in August: 10.6 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 August
White Rock, SD
- Average snowfall in August: 0"
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 August
White Rock, SD
- Average snowfall days in August: 0 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 August /
Average sunshine in August
White Rock, SD
- Average daylight in August: 14h and 1min
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 August: 10h and 2min
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 August
White Rock, SD
- Average sunshine days in August: 17.9 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 August
White Rock, SD
- Average UV index in August: 5
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 August
White Rock, SD
- Average cloud cover in August: 25
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 August
White Rock, SD
- Average visibility in August: 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
Weather forecast for your location
2. Allow the app to use your location