August weather forecast
Delmont, SD

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Weather in August

August, the last month of the summer in Delmont, is another warm month, with an average temperature ranging between min 62.6°F (17°C) and max 84.4°F (29.1°C).

Temperature

As August unfolds, the average high-temperature reaches a still warm 84.4°F (29.1°C), hinting at a slight fluctuation from the previous month. A sharp divergence from daytime highs is noted during the month of August, with the average nighttime temperature settling at a comfortable 62.6°F (17°C).

Heat index

The heat index for August is appraised at a tropical 89.6°F (32°C). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.
Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.

Humidity

In Delmont, South Dakota, the average relative humidity in August is 66%.

Rainfall

In Delmont, South Dakota, during August, the rain falls for 12 days and regularly aggregates up to 1.77" (45mm) of precipitation. In Delmont, during the entire year, the rain falls for 106.8 days and collects up to 19.29" (490mm) of precipitation.

Snowfall

In Delmont, snow does not fall in May through September.

Daylight

In August, the average length of the day in Delmont is 13h and 54min.
On the first day of August in Delmont, sunrise is at 6:23 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 8:08 pm CDT.

Sunshine

The average sunshine in August is 10.5h.

UV index

The months with the highest UV index in Delmont, South Dakota, are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 6 in August translates into this advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

How hot is August in Delmont?

Delmont in August has an average high-temperature of 84.4°F (29.1°C) and an average low-temperature of 62.6°F (17°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is appraised at 89.6°F (32°C).

What is the average humidity in August in Delmont?

In Delmont, the average relative humidity in August is 66%.

How much does it rain in Delmont in August?

In Delmont, in August, during 12 rainfall days, 1.77" (45mm) of precipitation is typically accumulated.

When it does not snow in Delmont?

In Delmont, South Dakota, snow does not fall in May through September.

How many hours of daylight does Delmont have in August?

In August, the average day length in Delmont, South Dakota, is 13h and 54min.

When is the sunrise / sunset in August in Delmont?

On the first day of August in Delmont, South Dakota, sunrise is at 6:23 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 8:08 pm CDT.

How many hours of sunshine does Delmont have in August?

In Delmont, South Dakota, the average sunshine duration in August is 10.5h.

What is the month with the highest UV index in Delmont?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

How high is the UV index in August in Delmont?

In Delmont, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents 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
Delmont, SD

Average temperature in August - Delmont, SD
  • Average high temperature in August: 84.4°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in August: 62.6°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).

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Average pressure in August
Delmont, SD

Average pressure in August - Delmont, SD
  • Average pressure in August: 29.92"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in August
Delmont, SD

Average wind speed in August - Delmont, SD
  • Average wind speed in August: 8.6mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

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Average humidity in August
Delmont, SD

Average humidity in August - Delmont, SD
  • Average humidity in August: 66%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (63%).

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Average rainfall in August
Delmont, SD

Average rainfall in August - Delmont, SD
  • Average rainfall in August: 1.77"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is February (0.51").

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Average rainfall days in August
Delmont, SD

Average rainfall days in August - Delmont, SD
  • Average rainfall days in August: 12 days

The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is January (2.5 days).

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Average snowfall in August
Delmont, SD

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

The month with the highest snowfall is December (2.56").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Delmont, SD

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

The month with the highest number of snowfall days is December (7.5 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
Delmont, SD

Average daylight in August / Average sunshine in August - Delmont, 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 0min).

  • Average sunshine in August: 10h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in August
Delmont, SD

Average sunshine days in August - Delmont, SD
  • Average sunshine days in August: 15.9 days

The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is June (11.8 days).

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Average UV index in August
Delmont, SD

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

The months with the highest UV index are June, July and August (UV index 6).
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
Delmont, SD

Average cloud cover in August - Delmont, SD
  • Average cloud cover in August: 25

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 23).

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Average visibility in August
Delmont, SD

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

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