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 shift into August reveals an average high-temperature of a moderately hot 85.5°F (29.7°C), closely mirroring July's climate. Coulterville observes an average nighttime low-temperature of 66°F (18.9°C) during the month of August.Heat index
The heat index in August is computed to be a torrid 96.8°F (36°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Factoring in the heat index, values are geared towards shaded areas with light breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital 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.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.
Humidity
The average relative humidity in August is 77%.Rainfall
In Coulterville, during August, the rain falls for 12.3 days and regularly aggregates up to 1.97" (50mm) of precipitation. In Coulterville, during the entire year, the rain falls for 125.7 days and collects up to 18.31" (465mm) of precipitation.Snowfall
April through September are months without snowfall in Coulterville.Daylight
In Coulterville, Illinois, the average length of the day in August is 13h and 36min.On the first day of the month, sunrise is at 6:01 am and sunset at 8:07 pm. On the last day of August, sunrise is at 6:27 am and sunset at 7:29 pm CDT.
Sunshine
The average sunshine in August in Coulterville, Illinois, is 10.3h.UV index
The months with the highest UV index in Coulterville are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 6 in August leads to these guidelines:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is August in Coulterville?
What is the average humidity in August in Coulterville?
How many days does it rain in August in Coulterville?
When it does not snow in Coulterville?
What is the average length of the day in August in Coulterville?
When is the sunrise / sunset in August in Coulterville?
How long on average sun shines in August in Coulterville?
What is the month with the highest UV index in Coulterville?
What is the UV index reading in August in Coulterville?
Average temperature in August
Coulterville, IL
- Average high temperature in August: 85.5°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in August: 66°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 (25.3°F).
Average pressure in August
Coulterville, 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 (29.93"Hg).
Average wind speed in August
Coulterville, IL
- Average wind speed in August: 5.6mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in August
Coulterville, IL
- Average humidity in August: 77%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Coulterville, IL
- Average rainfall in August: 1.97"
The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is February (0.94").
Average rainfall days in August
Coulterville, IL
- Average rainfall days in August: 12.3 days
The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in August
Coulterville, IL
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in August
Coulterville, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (4.8 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
Coulterville, IL
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in August: 10h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in August
Coulterville, IL
- Average sunshine days in August: 15.6 days
The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is July (13 days).
Average UV index in August
Coulterville, 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
Coulterville, IL
- Average cloud cover in August: 28
The months with the most cloud cover are January and February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in August
Coulterville, 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).
Coulterville, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location