August weather forecast
Barnard, SD

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Weather in August

The last month of the summer, August, is another warm month in Barnard, South Dakota, with an average temperature varying between 59.5°F (15.3°C) and 81.9°F (27.7°C).

Temperature

Barnard signifies an average high-temperature of a still moderately hot 81.9°F (27.7°C) in August, closely mirroring the 82.9°F (28.3°C) of July. August nights show a substantial disparity from the daytime peak with an average low-temperature of 59.5°F (15.3°C).

Heat index

During August, the heat index is evaluated at 84.2°F (29°C). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.
Given the heat index, its values are aligned with shaded sites and gentle winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.

Humidity

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

Rainfall

In Barnard, during August, the rain falls for 10 days and regularly aggregates up to 1.38" (35mm) of precipitation. In Barnard, during the entire year, the rain falls for 92.3 days and collects up to 15.28" (388mm) of precipitation.

Snowfall

In Barnard, snow does not fall in June through September.

Daylight

The average length of the day in August is 14h and 4min.
On the first day of August in Barnard, sunrise is at 6:18 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

In August, the average sunshine is 10.6h.

UV index

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index, 5 in August, converts into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.

Frequently asked questions

What is the usual temperature for Barnard in August?

The high-temperature, in August, in Barnard, records 81.9°F (27.7°C), while the low-temperature is 59.5°F (15.3°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is evaluated at 84.2°F (29°C).

What are the least humid months?

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 Barnard, the average relative humidity in August is 61%.

How many days does it rain in August?

In Barnard, in August, it is raining for 10 days, with typically 1.38" (35mm) of accumulated precipitation.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in August in Barnard?

In August, the average day length is 14h and 4min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:18 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.

How long on average sun shines in August?

In Barnard, the average sunshine duration in August is 10.6h.

What is the UV index intensity in August?

In Barnard, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from 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
Barnard, SD

Average temperature in August - Barnard, 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
Barnard, SD

Average pressure in August - Barnard, 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
Barnard, SD

Average wind speed in August - Barnard, 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
Barnard, SD

Average humidity in August - Barnard, 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
Barnard, SD

Average rainfall in August - Barnard, 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
Barnard, SD

Average rainfall days in August - Barnard, 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
Barnard, SD

Average snowfall in August - Barnard, 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
Barnard, SD

Average snowfall days in August - Barnard, 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
Barnard, SD

Average daylight in August / Average sunshine in August - Barnard, 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).

Average sunshine days in August
Barnard, SD

Average sunshine days in August - Barnard, 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
Barnard, SD

Average UV index in August - Barnard, 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
Barnard, SD

Average cloud cover in August - Barnard, 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
Barnard, SD

Average visibility in August - Barnard, 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).

Barnard, South Dakota, USA

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