August weather forecastSaint Francis, SD
August
Weather in August
August, the last month of the summer in Saint Francis, is also a moderately hot month, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 84.6°F (29.2°C).Temperature
As August unfolds, the average high-temperature reaches a warm 84.6°F (29.2°C), hinting at a slight fluctuation from the previous month. The low-temperature averages to an enjoyable 63.1°F (17.3°C) during the nights of August.Heat index
The average heat index in August is calculated to be a tropical 87.8°F (31°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.One should consider that heat index numbers are for shaded settings and light wind. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important 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
In August, the average relative humidity in Saint Francis is 58%.Rainfall
In Saint Francis, in August, it is raining for 12.1 days, with typically 1.65" (42mm) of accumulated precipitation. In Saint Francis, during the entire year, the rain falls for 109.2 days and collects up to 16.89" (429mm) of precipitation.Snowfall
June through August are months without snowfall in Saint Francis.Daylight
In Saint Francis, the average length of the day in August is 13h and 53min.On the first day of August, sunrise is at 6:35 am and sunset at 9:04 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 8:19 pm CDT.
Sunshine
In Saint Francis, the average sunshine in August is 10.8h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Saint Francis. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 during August translates into the following directions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Saint Francis, SD
- Average high temperature in August: 84.6°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in August: 63.1°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in August
Saint Francis, SD
- Average pressure in August: 29.91"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
Saint Francis, SD
- Average wind speed in August: 10.6mph
The windiest month (with the highest average wind speed) is April (13.1mph).
The calmest months (with the lowest average wind speed) are July and August (10.6mph).
Average humidity in August
Saint Francis, SD
- Average humidity in August: 58%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is September (56%).
Average rainfall in August
Saint Francis, SD
- Average rainfall in August: 1.65"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in August
Saint Francis, SD
- Average rainfall days in August: 12.1 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (2.4 days).
Average snowfall in August
Saint Francis, SD
- Average snowfall in August: 0"
The month with the highest snowfall is December (2.76").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Saint Francis, SD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Saint Francis, SD
- Average daylight in August: 13h and 54min
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 48min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in August
Saint Francis, SD
- Average sunshine days in August: 14.1 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in August
Saint Francis, 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 2).
Average cloud cover in August
Saint Francis, SD
- Average cloud cover in August: 21
The month with the most cloud cover is February (Cloud cover 44).
The months with the least cloud cover are July, August and September (Cloud cover 21).
Average visibility in August
Saint Francis, 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).
