August weather forecast
Frederick, SD

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Weather in August

The last month of the summer, August, is also a moderately hot month in Frederick, South Dakota, with temperature in the range of an average high of 81.9°F (27.7°C) and an average low of 59.5°F (15.3°C).

Temperature

August's presence records an average high-temperature of a still moderately hot 81.9°F (27.7°C), closely mirroring July's climate. Frederick's nighttime temperature in August demonstrates a noticeable plunge to a mild 59.5°F (15.3°C).

Heat index

August's heat index is appraised at 84.2°F (29°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.
The metrics for the heat index are tailored for both shady environments and light winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

The months with the lowest humidity in Frederick are August and September, with an average relative humidity of 61%.

Rainfall

In Frederick, in August, it is raining for 10 days, with typically 1.38" (35mm) of accumulated precipitation. In Frederick, during the entire year, the rain falls for 92.3 days and collects up to 15.28" (388mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Frederick, the average length of the day in August is 14h and 5min.
On the first day of the month, sunrise is at 6:17 am and sunset at 9:02 pm. On the last day of August, in Frederick, sunrise is at 6:54 am and sunset at 8:13 pm CDT.

Sunshine

In August, the average sunshine in Frederick is 10.6h.

UV index

The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: A maximum daily UV index of 5 during August morphs into the following directions:
Act with care - The need to guard against sun damage is communicated. To protect against the Sun's most potent rays, avoid direct exposure around midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Frequently asked questions

What is the usual temperature for Frederick in August?

August temperatures in Frederick, South Dakota, vary between a high-temperature of 81.9°F (27.7°C) and a low-temperature of 59.5°F (15.3°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is appraised at 84.2°F (29°C).

What are the least humid months in Frederick?

The months with the lowest humidity are August and September, with an average relative humidity of 61%.

What is the average humidity in August in Frederick?

The average relative humidity in August in Frederick is 61%.

How many days does it rain in August in Frederick?

In Frederick, South Dakota, in August, during 10 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

When it does not snow in Frederick?

June through September are months without snowfall in Frederick.

How many hours of daylight does Frederick have in August?

In Frederick, the average day length in August is 14h and 5min.

What time are sunrise and sunset in August in Frederick?

In August, on the first day of the month, sunrise is at 6:17 am and sunset at 9:02 pm. On the last day of the month, in Frederick, South Dakota, sunrise is at 6:54 am and sunset at 8:13 pm CDT.

How long on average sun shines in August in Frederick?

The average sunshine duration in August in Frederick is 10.6h.

How high is the UV index in August in Frederick?

In Frederick, South Dakota, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Frederick, SD

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).

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Average pressure in August
Frederick, SD

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).

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Average wind speed in August
Frederick, SD

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).

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Average humidity in August
Frederick, SD

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%).

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Average rainfall in August
Frederick, SD

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").

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Average rainfall days in August
Frederick, SD

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).

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Average snowfall in August
Frederick, SD

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").

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Average snowfall days in August
Frederick, SD

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).

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Average daylight in August /
Average sunshine in August
Frederick, SD

Average daylight in August / Average sunshine in August - Frederick, 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 4min

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).

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Average sunshine days in August
Frederick, SD

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).

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Average UV index in August
Frederick, SD

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).

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Average cloud cover in August
Frederick, SD

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).

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Average visibility in August
Frederick, SD

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).

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Frederick, South Dakota, USA

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