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
The start of August in Vermillion marks an average high-temperature of a still warm 82.4°F (28°C), hardly distinguishable from the conditions in July. An average nighttime temperature of 61.3°F (16.3°C) is observed in Vermillion, South Dakota, during August.Heat index
During August, the heat index is appraised at a hot 87.8°F (31°C). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
In August, the average relative humidity in Vermillion, South Dakota, is 73%.Rainfall
In Vermillion, in August, during 13.7 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Vermillion, during the entire year, the rain falls for 116.6 days and collects up to 21.26" (540mm) of precipitation.Snowfall
In Vermillion, snow does not fall in June through September.Daylight
The average length of the day in August is 13h and 52min.On the first day of the month, sunrise is at 6:20 am and sunset at 8:47 pm. On the last day of August, sunrise is at 6:52 am and sunset at 8:03 pm CDT.
Sunshine
In Vermillion, the average sunshine in August is 10.1h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: In August, the maximum UV index of 6 suggests these recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
Is it hot in Vermillion during August?
What is the average humidity in August in Vermillion?
How much does it rain in Vermillion in August?
When it does not snow in Vermillion?
What is the average length of the day in August in Vermillion?
When are sunrise and sunset in August in Vermillion?
How long on average sun shines in August in Vermillion?
What is the month with the highest UV index in Vermillion?
What is the UV index intensity in August in Vermillion?
Average temperature in August
Vermillion, SD
- Average high temperature in August: 82.4°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in August: 61.3°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 (12.9°F).
Average pressure in August
Vermillion, SD
- Average pressure in August: 29.94"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in August
Vermillion, SD
- Average wind speed in August: 8.1mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in August
Vermillion, SD
- Average humidity in August: 73%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (65%).
Average rainfall in August
Vermillion, SD
- Average rainfall in August: 2.24"
The wettest month (with the highest rainfall) is June (3.35").
The driest months (with the least rainfall) are January and February (0.63").
Average rainfall days in August
Vermillion, SD
- Average rainfall days in August: 13.7 days
The month with the highest number of rainy days is June (17.3 days).
The months with the least rainy days are January and February (2.8 days).
Average snowfall in August
Vermillion, SD
- Average snowfall in August: 0"
The months with the highest snowfall are January and February (2.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Vermillion, SD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Vermillion, SD
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 10h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in August
Vermillion, SD
- Average sunshine days in August: 15.1 days
The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in August
Vermillion, 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 January (UV index 1).
Average cloud cover in August
Vermillion, SD
- Average cloud cover in August: 28
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in August
Vermillion, 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).
Vermillion, South Dakota, USA
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