August weather forecastKeldron, SD
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Keldron, South Dakota, with an average temperature ranging between min 61.9°F (16.6°C) and max 82.6°F (28.1°C).Temperature
The introduction of August notes a subtle temperature variation to a still warm 82.6°F (28.1°C) from July's 84.7°F (29.3°C). The nights of August anticipate an average low-temperature of 61.9°F (16.6°C).Heat index
The heat index value for August is evaluated at 84.2°F (29°C). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.The metrics for the heat index are tailored for both shady environments and light winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Humidity
August and September, with an average relative humidity of 51%, are the least humid months.Rainfall
In Keldron, during August, the rain falls for 11.3 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Keldron, during the entire year, the rain falls for 101.3 days and collects up to 14.25" (362mm) of precipitation.Snowfall
In Keldron, South Dakota, snow does not fall in June through September.Daylight
In Keldron, the average length of the day in August is 14h and 5min.On the first day of August, sunrise is at 5:30 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 7:26 pm MDT.
Sunshine
With an average of 11.5h of sunshine, August has the most sunshine of the year.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 6 during August translates into the following guidance:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Keldron, SD
- Average high temperature in August: 82.6°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in August: 61.9°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in August
Keldron, SD
- Average pressure in August: 29.9"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in August
Keldron, SD
- Average wind speed in August: 9.6mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).
Average humidity in August
Keldron, SD
- Average humidity in August: 51%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (51%).
Average rainfall in August
Keldron, SD
- Average rainfall in August: 1.34"
The wettest month (with the highest rainfall) is June (2.28").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in August
Keldron, 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 January (2.9 days).
Average snowfall in August
Keldron, SD
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Keldron, SD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Keldron, SD
- Average daylight in August: 14h and 6min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in August: 11h and 30min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in August
Keldron, SD
- Average sunshine days in August: 16.3 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in August
Keldron, 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
Keldron, SD
- Average cloud cover in August: 20
The months with the most cloud cover are January and February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in August
Keldron, 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).





