Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Transitioning into August, Onaka records an average high-temperature of a still moderately hot 83.8°F (28.8°C), almost identical to July's 85.8°F (29.9°C). An average temperature of 63°F (17.2°C) is recorded during the nights in August.Heat index
In August, the heat index is computed to be a hot 86°F (30°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.Bear in mind that the heat index values are determined for shaded areas and light breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
August and September, with an average relative humidity of 56%, are the least humid months.Rainfall
In Onaka, during August, the rain falls for 11.3 days and regularly aggregates up to 1.42" (36mm) of precipitation. Throughout the year, there are 97.8 rainfall days, and 16.65" (423mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Onaka, the average length of the day in August is 14h and 2min.On the first day of August, sunrise is at 6:23 am and sunset at 9:04 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 8:16 pm CDT.
Sunshine
The average sunshine in August in Onaka is 10.7h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: In August, the maximum UV index of 6 translates into these guidelines:
Inhibit overexposure. Warding off sun damage is of utmost importance. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in August?
What are the least humid months?
What is the average humidity in August in Onaka?
How many days does it rain in August?
When it does not snow in Onaka?
What is the average length of the day in August?
What time are sunrise and sunset in August?
How long on average sun shines in August?
What are the months with the highest UV index in Onaka?
What is the UV index reading in August?
Average temperature in August
Onaka, SD
- Average high temperature in August: 83.8°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (22.6°F).
- Average low temperature in August: 63°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).
Average pressure in August
Onaka, SD
- Average pressure in August: 29.9"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
Onaka, SD
- Average wind speed in August: 9.7mph
The windiest month (with the highest average wind speed) is April (11.8mph).
The calmest month (with the lowest average wind speed) is August (9.7mph).
Average humidity in August
Onaka, SD
- Average humidity in August: 56%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (56%).
Average rainfall in August
Onaka, SD
- Average rainfall in August: 1.42"
The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in August
Onaka, SD
- Average rainfall days in August: 11.3 days
The month with the highest number of rainy days is June (14.4 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in August
Onaka, SD
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.04").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Onaka, SD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Onaka, SD
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in August: 10h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in August
Onaka, SD
- Average sunshine days in August: 16.7 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (13.1 days).
Average UV index in August
Onaka, 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 1).
Average cloud cover in August
Onaka, SD
- Average cloud cover in August: 22
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 22).
Average visibility in August
Onaka, 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).
Onaka, South Dakota, USA
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