August weather forecastFrederick, SD
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Frederick, South Dakota, with an average temperature fluctuating between 59.5°F (15.3°C) and 81.9°F (27.7°C).Temperature
The average high-temperature in August, at a still warm 81.9°F (27.7°C), reveals a modest deviation from July's 82.9°F (28.3°C). August's nights exhibit a sharp contrast from day highs, with an average temperature of 59.5°F (15.3°C).Heat index
For most parts of August, the heat index is evaluated at 84.2°F (29°C). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
August and September, with an average relative humidity of 61%, are the least humid months.Rainfall
In August, the rain falls for 10 days. Throughout August, 1.38" (35mm) of precipitation is accumulated. Throughout the year, there are 92.3 rainfall days, and 15.28" (388mm) of precipitation is accumulated.Snowfall
In Frederick, South Dakota, snow does not fall in June through September.Daylight
In August, the average length of the day is 14h and 5min.On the first day of August, sunrise is at 6:17 am and sunset at 9:02 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 8:13 pm CDT.
Sunshine
The average sunshine in August is 10.6h.UV index
The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 5 in August translates into the following instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Frederick, SD
- Average high temperature in August: 81.9°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (19.8°F).
- Average low temperature in August: 59.5°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in August
Frederick, SD
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in August
Frederick, SD
- Average wind speed in August: 8.2mph
The windiest months (with the highest average wind speed) are April and October (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.2mph).
Average humidity in August
Frederick, SD
- Average humidity in August: 61%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are August and September (61%).
Average rainfall in August
Frederick, SD
- Average rainfall in August: 1.38"
The wettest month (with the highest rainfall) is June (2.83").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in August
Frederick, SD
- Average rainfall days in August: 10 days
The month with the highest number of rainy days is June (14.3 days).
The month with the least rainy days is January (1.7 days).
Average snowfall in August
Frederick, SD
- Average snowfall in August: 0"
The months with the highest snowfall are January and December (2.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Frederick, SD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Frederick, SD
- Average daylight in August: 14h and 6min
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 36min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Frederick, SD
- Average sunshine days in August: 18.6 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.8 days).
Average UV index in August
Frederick, 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, November and December (UV index 1).
Average cloud cover in August
Frederick, SD
- Average cloud cover in August: 24
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in August
Frederick, SD
- Average visibility in August: 6mi
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and March (5mi).
