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 arrival of August coincides with an average high-temperature of a still tropical 86.5°F (30.3°C), indicating a minimal shift from July's 88°F (31.1°C). Simpson, in the month of August, anticipates a consistent average low-temperature of 66.7°F (19.3°C).Heat index
The average heat index in August is evaluated at a fiery hot 98.6°F (37°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.
Humidity
In Simpson, the average relative humidity in August is 76%.Rainfall
In Simpson, Illinois, in August, during 11.9 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Throughout the year, there are 118.3 rainfall days, and 13.03" (331mm) of precipitation is accumulated.Snowfall
In Simpson, Illinois, snow does not fall in April through October.Daylight
In Simpson, the average length of the day in August is 13h and 34min.On the first day of August in Simpson, sunrise is at 5:59 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:25 pm CDT.
Sunshine
The average sunshine in August in Simpson is 10.3h.UV index
The months with the highest UV index in Simpson are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Simpson in August?
What is the average humidity in August in Simpson?
How many days does it rain in August in Simpson?
When it does not snow in Simpson?
How many hours of daylight does Simpson have in August?
When are sunrise and sunset in August in Simpson?
How many hours of sunshine does Simpson have in August?
When is the highest UV index in Simpson?
What is the UV index intensity in August in Simpson?
Average temperature in August
Simpson, IL
- Average high temperature in August: 86.5°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).
- Average low temperature in August: 66.7°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in August
Simpson, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in August
Simpson, IL
- Average wind speed in August: 5.7mph
The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in August
Simpson, IL
- Average humidity in August: 76%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Simpson, IL
- Average rainfall in August: 1.3"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in August
Simpson, IL
- Average rainfall days in August: 11.9 days
The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).
Average snowfall in August
Simpson, IL
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Simpson, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (3.3 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
Simpson, IL
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in August: 10h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in August
Simpson, IL
- Average sunshine days in August: 16.3 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).
Average UV index in August
Simpson, IL
- Average UV index in August: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in August
Simpson, IL
- Average cloud cover in August: 30
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in August
Simpson, 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).
Simpson, Illinois, USA
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