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
August's onset sees an average high-temperature of a still moderately hot 82°F (27.8°C), exhibiting a slight fluctuation from the previous month. Saint David, in the month of August, anticipates a consistent average low-temperature of 63.7°F (17.6°C).Heat index
In August, the average heat index is computed to be a tropical 89.6°F (32°C). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.Factoring in the heat index, values are geared towards shaded areas with light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in August is 80%.Rainfall
In Saint David, in August, during 13.2 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. Throughout the year, there are 131.7 rainfall days, and 22.48" (571mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in August is 13h and 44min.On the first day of August, sunrise is at 5:58 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:33 pm CDT.
Sunshine
The average sunshine in August is 9.9h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Saint David. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high UV index of 6 in August translates into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What is the usual temperature for Saint David in August?
What is the average humidity in August in Saint David?
How much does it rain in Saint David in August?
When it does not snow in Saint David?
What is the average length of the day in August in Saint David?
What time are sunrise and sunset in August in Saint David?
How many hours of sunshine does Saint David have in August?
What is the month with the highest UV index in Saint David?
What is the UV index reading in August in Saint David?
Average temperature in August
Saint David, IL
- Average high temperature in August: 82°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in August: 63.7°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in August
Saint David, IL
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Saint David, IL
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in August
Saint David, IL
- Average humidity in August: 80%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Saint David, IL
- Average rainfall in August: 1.89"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is December (0.94").
Average rainfall days in August
Saint David, IL
- Average rainfall days in August: 13.2 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in August
Saint David, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (3.35").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Saint David, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Saint David, IL
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 9h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in August
Saint David, IL
- Average sunshine days in August: 14.6 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in August
Saint David, IL
- 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 David, IL
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in August
Saint David, IL
- 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).
Saint David, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
