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
Transitioning into August, Olmsted records an average high-temperature of a still tropical 86.4°F (30.2°C), almost identical to July's 88.2°F (31.2°C). Olmsted reports a consistent average low-temperature of 67.5°F (19.7°C) throughout August nights.Heat index
August's average heat index is appraised at a sweltering 98.6°F (37°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
In August, the average relative humidity is 76%.Rainfall
In Olmsted, Illinois, in August, during 13.6 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. Throughout the year, in Olmsted, there are 156.3 rainfall days, and 36.65" (931mm) of precipitation is accumulated.Snowfall
In Olmsted, snow does not fall in May through September.Daylight
In August, the average length of the day is 13h and 32min.On the first day of the month, sunrise is at 6:01 am and sunset at 8:03 pm. On the last day of August, sunrise is at 6:26 am and sunset at 7:26 pm CDT.
Sunshine
In Olmsted, the average sunshine in August is 10.4h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. 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: The maximum daily UV index of 6 in August interprets into the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during August?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Olmsted have in August?
What time are sunrise and sunset in August?
How long on average sun shines in August?
What are the months with the highest UV index?
What is the UV index intensity in August?
Average temperature in August
Olmsted, IL
- Average high temperature in August: 86.4°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.2°F).
- Average low temperature in August: 67.5°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in August
Olmsted, 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
Olmsted, IL
- Average wind speed in August: 5.7mph
The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in August
Olmsted, IL
- Average humidity in August: 76%
The months with the highest relative humidity are February, March, May and December (78%).
The month with the lowest relative humidity is October (69%).
Average rainfall in August
Olmsted, IL
- Average rainfall in August: 2.72"
The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in August
Olmsted, IL
- Average rainfall days in August: 13.6 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in August
Olmsted, IL
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Olmsted, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (3.8 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
Olmsted, IL
- Average daylight in August: 13h and 3min
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 42min).
- Average sunshine in August: 10h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in August
Olmsted, IL
- Average sunshine days in August: 15.1 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in August
Olmsted, 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
Olmsted, IL
- Average cloud cover in August: 27
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in August
Olmsted, 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).
Olmsted, Illinois, USA
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