August weather forecast
Denby, SD

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Weather in August

The last month of the summer, August, is also a moderately hot month in Denby, South Dakota, with temperature in the range of an average high of 85.6°F (29.8°C) and an average low of 64°F (17.8°C).

Temperature

The arrival of August sees an average high-temperature of a moderately hot 85.6°F (29.8°C), hardly diverging from July's 87.6°F (30.9°C). In August, the nighttime temperature in Denby plummets remarkably from the daily apex to a steady average of 64°F (17.8°C).

Heat index

The heat index value for August is evaluated at a hot 86°F (30°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.
Heat index evaluations are typically in the context of light winds and shaded environments. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

August is the least humid month in Denby, South Dakota, with an average relative humidity of 48%.

Rainfall

In Denby, during August, the rain falls for 7.3 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, in Denby, there are 86.7 rainfall days, and 13.66" (347mm) of precipitation is accumulated.

Snowfall

In Denby, snow does not fall in June through August.

Daylight

In August, the average length of the day in Denby is 13h and 53min.
On the first day of the month, sunrise is at 5:40 am and sunset at 8:10 pm. On the last day of August, sunrise is at 6:13 am and sunset at 7:25 pm MDT.

Sunshine

August has the most sunshine of the year, with an average of 11.8h of sunshine.

UV index

The average daily maximum UV index in August in Denby is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 6 during August translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
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Frequently asked questions

How hot is it in Denby in August?

August temperatures vary between a high-temperature of 85.6°F (29.8°C) and a low-temperature of 64°F (17.8°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 86°F (30°C).

What is the least humid month in Denby?

August is the least humid month in Denby, South Dakota, with an average relative humidity of 48%.

What is the average humidity in August in Denby?

In Denby, the average relative humidity in August is 48%.

How much does it rain in Denby in August?

In August, in Denby, South Dakota, the rain falls for 7.3 days. Throughout August, 0.91" (23mm) of precipitation is accumulated.

When it does not snow in Denby?

June through August are months without snowfall in Denby.

Does it snow in Denby in August?

In Denby, in August, it doesn't snow. In September, it regularly snows.

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

The average day length in August in Denby, South Dakota, is 13h and 53min.

When is the sunrise / sunset in August in Denby?

In August, on the first day of the month, sunrise is at 5:40 am and sunset at 8:10 pm. On the last day of the month, in Denby, sunrise is at 6:13 am and sunset at 7:25 pm MDT.

What month has the most sunshine in Denby?

With an average of 11.8h of sunshine, August has the most sunshine of the year.

How long on average sun shines in August in Denby?

In August, the average sunshine duration in Denby, South Dakota, is 11.8h.

What is the UV index intensity in August in Denby?

In August, the average daily maximum UV index in Denby, South Dakota, is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
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
Denby, SD

Average temperature in August - Denby, SD
  • Average high temperature in August: 85.6°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is December (32.4°F).

  • Average low temperature in August: 64°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).

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Average pressure in August
Denby, SD

Average pressure in August - Denby, SD
  • Average pressure in August: 29.91"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in August
Denby, SD

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

The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (10.2mph).

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Average humidity in August
Denby, SD

Average humidity in August - Denby, SD
  • Average humidity in August: 48%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (48%).

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Average rainfall in August
Denby, SD

Average rainfall in August - Denby, SD
  • Average rainfall in August: 0.91"

The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is January (0.55").

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Average rainfall days in August
Denby, SD

Average rainfall days in August - Denby, SD
  • Average rainfall days in August: 7.3 days

The month with the highest number of rainy days is May (13.1 days).
The months with the least rainy days are February and December (2.5 days).

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Average snowfall in August
Denby, SD

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

The month with the highest snowfall is February (4.02").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in August
Denby, SD

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

The month with the highest number of snowfall days is February (11.5 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 11h and 5min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

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Average sunshine days in August
Denby, SD

Average sunshine days in August - Denby, SD
  • Average sunshine days in August: 22.3 days

The month with the most sunshine days is September (22.8 days).
The month with the least sunshine days is April (13.2 days).

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Average UV index in August
Denby, SD

Average UV index in August - Denby, SD
  • Average UV index in August: 6

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Denby, SD

Average cloud cover in August - Denby, SD
  • Average cloud cover in August: 16

The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in August
Denby, SD

Average visibility in August - Denby, 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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Denby, South Dakota, USA

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