August weather forecast
Sherman, SD

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Weather in August

The last month of the summer, August, is another warm month in Sherman, South Dakota, with an average temperature varying between 59.4°F (15.2°C) and 80.6°F (27°C).

Temperature

The advent of August brings an average high-temperature of a still moderately hot 80.6°F (27°C), exhibiting minor difference from the previous month. In August, the average low-temperature records at a mild 59.4°F (15.2°C) during the nights.

Heat index

For most parts of August, the heat index is calculated to be 84.2°F (29°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.
Note that heat index values are valued for light wind and location in the shade. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.

Humidity

The average relative humidity in August in Sherman is 73%.

Rainfall

In Sherman, in August, during 13.3 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Sherman, during the entire year, the rain falls for 116.4 days and collects up to 21.38" (543mm) of precipitation.

Snowfall

June through September are months without snowfall in Sherman.

Daylight

In Sherman, the average length of the day in August is 13h and 56min.
On the first day of the month, sunrise is at 6:15 am and sunset at 8:48 pm. On the last day of August, sunrise is at 6:49 am and sunset at 8:02 pm CDT.

Sunshine

The average sunshine in August is 10.1h.

UV index

In Sherman, South Dakota, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In August, the average maximum UV index of 5 translates into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
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Frequently asked questions

What are August temperatures in Sherman?

The average high-temperature and low-temperature in Sherman during August are 80.6°F (27°C) and 59.4°F (15.2°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in August is calculated to be 84.2°F (29°C).

What is the average humidity in August in Sherman?

In Sherman, South Dakota, the average relative humidity in August is 73%.

How much does it rain in Sherman in August?

In Sherman, in August, it is raining for 13.3 days, with typically 2.28" (58mm) of accumulated precipitation.

When it does not snow in Sherman?

June through September are months without snowfall.

How many hours of daylight does Sherman have in August?

In Sherman, South Dakota, the average day length in August is 13h and 56min.

What time are sunrise and sunset in August in Sherman?

On the first day of August in Sherman, South Dakota, sunrise is at 6:15 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 8:02 pm CDT.

How long on average sun shines in August in Sherman?

In August, the average sunshine duration in Sherman, South Dakota, is 10.1h.

How high is the UV index in August in Sherman?

In August, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health risk 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
Sherman, SD

Average temperature in August - Sherman, SD
  • Average high temperature in August: 80.6°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (22.3°F).

  • Average low temperature in August: 59.4°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).

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Average pressure in August
Sherman, SD

Average pressure in August - Sherman, 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).

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Average wind speed in August
Sherman, SD

Average wind speed in August - Sherman, SD
  • Average wind speed in August: 8.3mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is July (8.2mph).

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Average humidity in August
Sherman, SD

Average humidity in August - Sherman, SD
  • Average humidity in August: 73%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (67%).

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Average rainfall in August
Sherman, SD

Average rainfall in August - Sherman, SD
  • Average rainfall in August: 2.28"

The wettest month (with the highest rainfall) is June (3.27").
The driest month (with the least rainfall) is January (0.63").

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Average rainfall days in August
Sherman, SD

Average rainfall days in August - Sherman, SD
  • Average rainfall days in August: 13.3 days

The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.8 days).

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Average snowfall in August
Sherman, SD

Average snowfall in August - Sherman, SD
  • Average snowfall in August: 0"

The month with the highest snowfall is February (4.29").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Sherman, SD

Average snowfall days in August - Sherman, SD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (10.3 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
Sherman, SD

Average daylight in August / Average sunshine in August - Sherman, SD
  • Average daylight in August: 13h and 5min

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 August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in August
Sherman, SD

Average sunshine days in August - Sherman, SD
  • Average sunshine days in August: 14.9 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is June (10.6 days).

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Average UV index in August
Sherman, SD

Average UV index in August - Sherman, 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).

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Average cloud cover in August
Sherman, SD

Average cloud cover in August - Sherman, SD
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in August
Sherman, SD

Average visibility in August - Sherman, SD
  • Average visibility in August: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

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Sherman, South Dakota, USA

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