August weather forecast
Long Valley, SD

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Weather in August

August, the last month of the summer in Long Valley, is another tropical month, with an average temperature fluctuating between 87.1°F (30.6°C) and 66.9°F (19.4°C).

Temperature

The average high-temperature for August is a still hot 87.1°F (30.6°C), closely aligning with the temperature of the preceding month. In August, Long Valley experiences a temperature dip to an average of 66.9°F (19.4°C) at night.

Heat index

The heat index value during August is evaluated at a hot 89.6°F (32°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.
Heat index readings emphasize conditions of light breezes and shaded spots. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

The average relative humidity in August is 48%.

Rainfall

In Long Valley, in August, during 10.8 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. Throughout the year, in Long Valley, South Dakota, there are 95.3 rainfall days, and 13.74" (349mm) of precipitation is accumulated.

Snowfall

In Long Valley, snow does not fall in June through September.

Daylight

In Long Valley, the average length of the day in August is 13h and 55min.
On the first day of August in Long Valley, sunrise is at 5:36 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 7:22 pm MDT.

Sunshine

With an average of 11.7h of sunshine, August has the most sunshine of the year in Long Valley.

UV index

The average daily maximum UV index in August in Long Valley is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 6 during August translates into the following guidance:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Frequently asked questions

How hot is it in Long Valley in August?

Long Valley in August has an average high-temperature of 87.1°F (30.6°C) and an average low-temperature of 66.9°F (19.4°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 89.6°F (32°C).

What is the average humidity in August in Long Valley?

In August, the average relative humidity is 48%.

How much does it rain in Long Valley in August?

In Long Valley, in August, during 10.8 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

When it does not snow in Long Valley?

In Long Valley, South Dakota, snow does not fall in June through September.

What is the average length of the day in August in Long Valley?

The average day length in August in Long Valley, South Dakota, is 13h and 55min.

What time are sunrise and sunset in August in Long Valley?

In August, on the first day of the month, sunrise is at 5:36 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 7:22 pm MDT.

What month has the most sunshine in Long Valley?

August has the most sunshine of the year in Long Valley, South Dakota, with an average of 11.7h of sunshine.

How long on average sun shines in August in Long Valley?

In August, the average sunshine duration in Long Valley, South Dakota, is 11.7h.

What is the UV index reading in August in Long Valley?

The average daily maximum UV index in August in Long Valley is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health 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
Long Valley, SD

Average temperature in August - Long Valley, SD
  • Average high temperature in August: 87.1°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in August: 66.9°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

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Average pressure in August
Long Valley, SD

Average pressure in August - Long Valley, SD
  • Average pressure in August: 29.9"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in August
Long Valley, SD

Average wind speed in August - Long Valley, SD
  • Average wind speed in August: 10.2mph

The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is February (10.1mph).

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Average humidity in August
Long Valley, SD

Average humidity in August - Long Valley, SD
  • Average humidity in August: 48%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (47%).

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Average rainfall in August
Long Valley, SD

Average rainfall in August - Long Valley, SD
  • Average rainfall in August: 1.18"

The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.39").

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Average rainfall days in August
Long Valley, SD

Average rainfall days in August - Long Valley, SD
  • Average rainfall days in August: 10.8 days

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (2.6 days).

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Average snowfall in August
Long Valley, SD

Average snowfall in August - Long Valley, SD
  • Average snowfall in August: 0"

The month with the highest snowfall is February (3.15").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Long Valley, SD

Average snowfall days in August - Long Valley, SD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (8.9 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
Long Valley, SD

Average daylight in August / Average sunshine in August - Long Valley, 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: 11h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).

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Average sunshine days in August
Long Valley, SD

Average sunshine days in August - Long Valley, SD
  • Average sunshine days in August: 16.7 days

The month with the most sunshine days is December (21.1 days).
The months with the least sunshine days are April and June (14.1 days).

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Average UV index in August
Long Valley, SD

Average UV index in August - Long Valley, SD
  • Average UV index in August: 6

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in August
Long Valley, SD

Average cloud cover in August - Long Valley, SD
  • Average cloud cover in August: 18

The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 18).

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Average visibility in August
Long Valley, SD

Average visibility in August - Long Valley, SD
  • Average visibility in August: 6mi

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

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Long Valley, South Dakota, USA

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