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
As August unfolds, the average high-temperature reaches a warm 85.3°F (29.6°C), hinting at a slight fluctuation from the previous month. Throughout August, Columbia witnesses a nighttime temperature average of 66.6°F (19.2°C).Heat index
In August, the heat index is estimated at a torrid 95°F (35°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Evaluating the heat index requires understanding its values in the shade and with gentle winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
In Columbia, the average relative humidity in August is 76%.Rainfall
In Columbia, during August, the rain falls for 14.3 days and regularly aggregates up to 3.11" (79mm) of precipitation. In Columbia, during the entire year, the rain falls for 141 days and collects up to 29.29" (744mm) of precipitation.Snowfall
April through October are months without snowfall in Columbia.Daylight
In Columbia, the average length of the day in August is 13h and 37min.On the first day of the month, sunrise is at 6:03 am and sunset at 8:10 pm. On the last day of August, in Columbia, Illinois, sunrise is at 6:30 am and sunset at 7:31 pm CDT.
Sunshine
The average sunshine in August in Columbia is 10.2h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Columbia in August?
What is the average humidity in August in Columbia?
How much does it rain in Columbia in August?
When it does not snow in Columbia?
How many hours of daylight does Columbia have in August?
When is the sunrise / sunset in August in Columbia?
How long on average sun shines in August in Columbia?
When is the highest UV index in Columbia?
How high is the UV index in August in Columbia?
Average temperature in August
Columbia, IL
- Average high temperature in August: 85.3°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in August: 66.6°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in August
Columbia, 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 (29.92"Hg).
Average wind speed in August
Columbia, IL
- Average wind speed in August: 5.5mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in August
Columbia, IL
- Average humidity in August: 76%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Columbia, IL
- Average rainfall in August: 3.11"
The wettest month (with the highest rainfall) is May (3.58").
The driest months (with the least rainfall) are February and November (1.57").
Average rainfall days in August
Columbia, IL
- Average rainfall days in August: 14.3 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in August
Columbia, IL
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.24").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Columbia, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6.2 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
Columbia, 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 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in August
Columbia, IL
- Average sunshine days in August: 14.9 days
The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in August
Columbia, 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
Columbia, IL
- Average cloud cover in August: 28
The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are June, July and August (Cloud cover 28).
Average visibility in August
Columbia, 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).
Columbia, Illinois, USA
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