August weather forecast
Frankfort, SD

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Weather in August

August, the last month of the summer in Frankfort, is also a moderately hot month, with an average temperature fluctuating between 84.4°F (29.1°C) and 61.3°F (16.3°C).

Temperature

Frankfort marks the onset of August with an average high-temperature of a still warm 84.4°F (29.1°C), a subtle shift from July's 85.6°F (29.8°C). Frankfort's August nights see a large temperature deviation, with temperatures resting at a low of 61.3°F (16.3°C).

Heat index

The heat index in August is estimated at a tropical 89.6°F (32°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.
When referencing the heat index, its values are suitable for shady environments and light breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

In August, the average relative humidity is 62%.

Rainfall

In Frankfort, in August, during 11.3 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, there are 97.6 rainfall days, and 17.83" (453mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Frankfort, the average length of the day in August is 14h and 1min.
On the first day of the month, sunrise is at 6:19 am and sunset at 8:59 pm. On the last day of August, sunrise is at 6:55 am and sunset at 8:11 pm CDT.

Sunshine

In August, the average sunshine in Frankfort is 10.8h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, an average UV index of 6 transforms into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

In Frankfort, in August, the average high-temperature is 84.4°F (29.1°C), and the average low-temperature is 61.3°F (16.3°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is estimated at 89.6°F (32°C).

What is the average humidity in August?

In Frankfort, the average relative humidity in August is 62%.

How much does it rain in August?

In Frankfort, in August, during 11.3 rainfall days, 1.77" (45mm) of precipitation is typically accumulated.

When it does not snow?

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

How many hours of daylight does Frankfort have in August?

The average day length in August is 14h and 1min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:19 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 8:11 pm CDT.

How many hours of sunshine does Frankfort have in August?

The average sunshine duration in August is 10.8h.

When is the highest UV index?

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

What is the UV index intensity in August?

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

Average temperature in August - Frankfort, 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 (22.5°F).

  • Average low temperature in August: 61.3°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).

Average pressure in August
Frankfort, SD

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

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in August
Frankfort, SD

Average wind speed in August - Frankfort, SD
  • Average wind speed in August: 8.5mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (8.5mph).

Average humidity in August
Frankfort, SD

Average humidity in August - Frankfort, SD
  • Average humidity in August: 62%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is September (60%).

Average rainfall in August
Frankfort, SD

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

The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is January (0.51").

Average rainfall days in August
Frankfort, SD

Average rainfall days in August - Frankfort, SD
  • Average rainfall days in August: 11.3 days

The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is February (1.9 days).

Average snowfall in August
Frankfort, SD

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

The month with the highest snowfall is February (4.09").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Frankfort, SD

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

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Frankfort, SD
  • Average daylight in August: 14h and 0min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in August: 10h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in August
Frankfort, SD

Average sunshine days in August - Frankfort, SD
  • Average sunshine days in August: 16.9 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (12.2 days).

Average UV index in August
Frankfort, SD

Average UV index in August - Frankfort, 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 and February (UV index 1).

Average cloud cover in August
Frankfort, SD

Average cloud cover in August - Frankfort, SD
  • Average cloud cover in August: 23

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 22).

Average visibility in August
Frankfort, SD

Average visibility in August - Frankfort, 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).

Frankfort, South Dakota, USA

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