August weather forecast
Okaton, SD

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Weather in August

August, the last month of the summer in Okaton, 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 advent of August presents an average high-temperature of a still tropical 87.1°F (30.6°C), maintaining a close correlation with the preceding month. In August, the temperature drops to an average of 66.9°F (19.4°C) at night.

Heat index

Throughout August, the heat index is calculated to be a hot 89.6°F (32°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

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

Rainfall

In Okaton, in August, it is raining for 10.8 days, with typically 1.18" (30mm) of accumulated precipitation. In Okaton, during the entire year, the rain falls for 95.3 days and collects up to 13.74" (349mm) of precipitation.

Snowfall

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

Daylight

In Okaton, the average length of the day in August is 13h and 56min.
On the first day of the month, sunrise is at 6:32 am and sunset at 9:06 pm. On the last day of August, sunrise is at 7:06 am and sunset at 8:20 pm CDT.

Sunshine

August has the most sunshine of the year, with an average of 11.7h of sunshine.

UV index

In Okaton, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In August, the maximum UV index of 6 suggests these recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

The high-temperature, in August, in Okaton, is 87.1°F (30.6°C), while the low-temperature averages to 66.9°F (19.4°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 89.6°F (32°C).

What is the average humidity in August?

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

How much does it rain in August?

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

When it does not snow?

June through September are months without snowfall in Okaton.

How many hours of daylight does Okaton have in August?

In Okaton, the average day length in August is 13h and 56min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:32 am and sunset at 9:06 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 8:20 pm CDT.

What month has the most sunshine?

August has the most sunshine of the year, with an average of 11.7h of sunshine.

How long on average sun shines in August in Okaton?

In August, the average sunshine duration is 11.7h.

What is the UV index reading in August?

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

Average temperature in August - Okaton, 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).

Average pressure in August
Okaton, SD

Average pressure in August - Okaton, 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).

Average wind speed in August
Okaton, SD

Average wind speed in August - Okaton, 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).

Average humidity in August
Okaton, SD

Average humidity in August - Okaton, 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%).

Average rainfall in August
Okaton, SD

Average rainfall in August - Okaton, 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").

Average rainfall days in August
Okaton, SD

Average rainfall days in August - Okaton, 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).

Average snowfall in August
Okaton, SD

Average snowfall in August - Okaton, 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").

Average snowfall days in August
Okaton, SD

Average snowfall days in August - Okaton, 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).

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

Average daylight in August / Average sunshine in August - Okaton, 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).

Average sunshine days in August
Okaton, SD

Average sunshine days in August - Okaton, 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).

Average UV index in August
Okaton, SD

Average UV index in August - Okaton, 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).

Average cloud cover in August
Okaton, SD

Average cloud cover in August - Okaton, 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).

Average visibility in August
Okaton, SD

Average visibility in August - Okaton, 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).

Okaton, South Dakota, USA

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