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
With the transition into August, Centralia notes an average high-temperature of a still moderately hot 83.8°F (28.8°C), closely resembling July. During August, Centralia records an average temperature of 65.8°F (18.8°C) at night.Heat index
Throughout August, the heat index is calculated to be a hot 93.2°F (34°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Heat index determinations are made taking into account the shade and light air movements. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
In August, the average relative humidity is 79%.Rainfall
In August, in Centralia, the rain falls for 7.4 days. Throughout August, 0.63" (16mm) of precipitation is accumulated. Throughout the year, in Centralia, there are 83.2 rainfall days, and 6.81" (173mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Centralia, Illinois.Daylight
In Centralia, the average length of the day in August is 13h and 37min.On the first day of the month, sunrise is at 5:59 am and sunset at 8:06 pm. On the last day of August, sunrise is at 6:25 am and sunset at 7:27 pm CDT.
Sunshine
In Centralia, the average sunshine in August is 10.1h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: In August, a daily UV index of 6 turns into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Centralia in August?
What is the average humidity in August in Centralia?
How much does it rain in Centralia in August?
When it does not snow in Centralia?
How many hours of daylight does Centralia have in August?
When are sunrise and sunset in August in Centralia?
How long on average sun shines in August in Centralia?
When is the highest UV index in Centralia?
What is the UV index intensity in August in Centralia?
Average temperature in August
Centralia, IL
- Average high temperature in August: 83.8°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in August: 65.8°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in August
Centralia, 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
Centralia, IL
- Average wind speed in August: 5.9mph
The windiest month (with the highest average wind speed) is February (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in August
Centralia, IL
- Average humidity in August: 79%
The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Centralia, IL
- Average rainfall in August: 0.63"
The wettest months (with the highest rainfall) are April and July (0.75").
The driest month (with the least rainfall) is September (0.24").
Average rainfall days in August
Centralia, IL
- Average rainfall days in August: 7.4 days
The month with the highest number of rainy days is May (10.1 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in August
Centralia, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Centralia, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Centralia, 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 30min).
- Average sunshine in August: 10h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in August
Centralia, IL
- Average sunshine days in August: 20.3 days
The months with the most sunshine days are January and December (24.5 days).
The month with the least sunshine days is May (16.8 days).
Average UV index in August
Centralia, 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, November and December (UV index 2).
Average cloud cover in August
Centralia, IL
- Average cloud cover in August: 29
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in August
Centralia, 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).
Centralia, Illinois, USA
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