August weather forecast
Ideal, SD

Share

Weather in August

The last month of the summer, August, is also a moderately hot month in Ideal, South Dakota, with an average temperature ranging between min 63.9°F (17.7°C) and max 85.8°F (29.9°C).

Temperature

Ideal's transition from July to August introduces an average high-temperature of a moderately hot 85.8°F (29.9°C), marking an insignificant variation from the 88°F (31.1°C). August nights see a notable contrast from daytime highs, with the nighttime temperature averaging at a refreshing 63.9°F (17.7°C).

Heat index

In August, the average heat index is calculated to be a tropical 89.6°F (32°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.
Records show heat index calculations are tailored for shaded regions and mild winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of 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. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

August and September, with an average relative humidity of 57%, are the least humid months.

Rainfall

In Ideal, during August, the rain falls for 11.8 days and regularly aggregates up to 1.46" (37mm) of precipitation. Throughout the year, there are 103.9 rainfall days, and 16.85" (428mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in August is 13h and 55min.
On the first day of August in Ideal, sunrise is at 6:30 am and sunset at 9:01 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 8:16 pm CDT.

Sunshine

The average sunshine in August is 11h.

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 threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

In August, the average high-temperature and low-temperature in Ideal are 85.8°F (29.9°C) and 63.9°F (17.7°C) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in August is calculated to be 89.6°F (32°C).

What is the least humid month?

The months with the lowest humidity are August and September, with an average relative humidity of 57%.

What is the average humidity in August?

The average relative humidity in August is 57%.

How many days does it rain in August?

In Ideal, during August, the rain falls for 11.8 days and regularly aggregates up to 1.46" (37mm) of precipitation.

When it does not snow?

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

How many hours of daylight does Ideal have in August?

In August, the average day length is 13h and 55min.

When is the sunrise / sunset in August in Ideal?

On the first day of August in Ideal, sunrise is at 6:30 am and sunset at 9:01 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 8:16 pm CDT.

How many hours of sunshine does Ideal have in August?

In August, the average sunshine duration is 11h.

What are the months with the highest UV index?

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

What is the UV index intensity in August?

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health risk 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
Ideal, SD

Average temperature in August - Ideal, SD
  • Average high temperature in August: 85.8°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in August: 63.9°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

Average pressure in August
Ideal, SD

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

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

Average wind speed in August
Ideal, SD

Average wind speed in August - Ideal, SD
  • Average wind speed in August: 9.8mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (9.8mph).

Average humidity in August
Ideal, SD

Average humidity in August - Ideal, SD
  • Average humidity in August: 57%

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are August and September (57%).

Average rainfall in August
Ideal, SD

Average rainfall in August - Ideal, SD
  • Average rainfall in August: 1.46"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in August
Ideal, SD

Average rainfall days in August - Ideal, SD
  • Average rainfall days in August: 11.8 days

The month with the highest number of rainy days is June (15.3 days).
The months with the least rainy days are January and February (2.7 days).

Average snowfall in August
Ideal, SD

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

The month with the highest snowfall is December (3.19").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Ideal, SD

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

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Ideal, 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 0min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in August
Ideal, SD

Average sunshine days in August - Ideal, SD
  • Average sunshine days in August: 15.4 days

The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in August
Ideal, SD

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

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in August
Ideal, SD

Average cloud cover in August - Ideal, SD
  • Average cloud cover in August: 20

The month with the most cloud cover is January (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 20).

Average visibility in August
Ideal, SD

Average visibility in August - Ideal, 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).

Ideal, South Dakota, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location