August weather forecastColumbia, SD
August
Weather in August
August, the last month of the summer in Columbia, is also a moderately hot month, with temperature in the range of an average high of 83.1°F (28.4°C) and an average low of 61°F (16.1°C).Temperature
Transitioning into August, Columbia experiences an average high-temperature of a still warm 83.1°F (28.4°C), marking a minor shift from the preceding month. Columbia undergoes a major shift from daytime highs, averaging a comfortable 61°F (16.1°C) during the night in August.Heat index
In August, the heat index is calculated to be a hot 86°F (30°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.Consider that heat index readings are for situations in the shade and light wind. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humidity
The months with the lowest humidity in Columbia are August and September, with an average relative humidity of 60%.Rainfall
In Columbia, during August, the rain falls for 10.4 days and regularly aggregates up to 1.61" (41mm) of precipitation. Throughout the year, there are 97.2 rainfall days, and 18.35" (466mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Columbia, South Dakota, the average length of the day in August is 14h and 4min.On the first day of August in Columbia, sunrise is at 6:17 am and sunset at 9:01 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 8:12 pm CDT.
Sunshine
The average sunshine in August is 10.7h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Columbia. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 6 during August translates into the following directions:
Take precautions against overexposure. Protection against sun damage is needed. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Columbia, SD
- Average high temperature in August: 83.1°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 (20.7°F).
- Average low temperature in August: 61°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 (6.3°F).
Average pressure in August
Columbia, SD
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in August
Columbia, SD
- Average wind speed in August: 8.3mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in August
Columbia, SD
- Average humidity in August: 60%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (60%).
Average rainfall in August
Columbia, SD
- Average rainfall in August: 1.61"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in August
Columbia, SD
- Average rainfall days in August: 10.4 days
The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (2 days).
Average snowfall in August
Columbia, SD
- Average snowfall in August: 0"
The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Columbia, SD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Columbia, SD
- Average daylight in August: 14h and 6min
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 42min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in August
Columbia, SD
- Average sunshine days in August: 18.2 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (12.7 days).
Average UV index in August
Columbia, 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 and November (UV index 1).
Average cloud cover in August
Columbia, SD
- Average cloud cover in August: 23
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in August
Columbia, 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).





