August weather forecast
Columbia, MO

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The iconic and famed historical columns in Columbia, Missouri
The iconic and famed historical columns in Columbia, Missouri

Weather in August

The last full month of summer, August, maintains the steady heat of July, providing ample opportunity for outdoor fun. On an average, the temperature fluctuates between a comfortable 65.8°F (18.8°C) to a warm 86°F (30°C), setting the stage for a myriad of activities. August's inviting climate encourages water sports and outings to the city's myriad parks and picnic spots. Despite the inevitable retreat of summer, Columbia retains its sunny energy through this month, carrying forward the lively vibes into the fall. A variety of food and music festivals color the city's cultural calendar, catering to different tastes and interests.

Temperature

August in Columbia notes an average high-temperature of a still tropical 86°F (30°C), subtly differing from July's 87.6°F (30.9°C). August brings an average low-temperature of 65.8°F (18.8°C) to Columbia.

Heat index

In August, the heat index is evaluated at a torrid 96.8°F (36°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. 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.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In August, the average relative humidity is 75%.

Rainfall

In Columbia, Missouri, in August, it is raining for 8.2 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, in Columbia, there are 95.5 rainfall days, and 8.62" (219mm) of precipitation is accumulated.

Snowfall

In Columbia, snow does not fall in April through September.

Daylight

In Columbia, the average length of the day in August is 13h and 38min.
On the first day of the month, sunrise is at 6:10 am and sunset at 8:20 pm. On the last day of August, in Columbia, sunrise is at 6:38 am and sunset at 7:40 pm CDT.

Sunshine

In August, the average sunshine in Columbia is 10.1h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In August, the average maximum UV index of 6 translates into the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

How hot is August in Columbia?

During August, Columbia experiences an average high-temperature of 86°F (30°C) and a low-temperature of 65.8°F (18.8°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is evaluated at 96.8°F (36°C).

What is the average humidity in August in Columbia?

In Columbia, Missouri, the average relative humidity in August is 75%.

How many days does it rain in August in Columbia?

In Columbia, during August, the rain falls for 8.2 days and regularly aggregates up to 0.67" (17mm) of precipitation.

When it does not snow in Columbia?

April through September are months without snowfall in Columbia, Missouri.

What is the average length of the day in August in Columbia?

In Columbia, the average day length in August is 13h and 38min.

When are sunrise and sunset in August in Columbia?

On the first day of August in Columbia, sunrise is at 6:10 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:40 pm CDT.

How many hours of sunshine does Columbia have in August?

In August, the average sunshine duration in Columbia is 10.1h.

What are the months with the highest UV index in Columbia?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in August in Columbia?

In Columbia, Missouri, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Columbia, MO

Average temperature in August - Columbia, MO
  • Average high temperature in August: 86°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in August: 65.8°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (23°F).

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Average pressure in August
Columbia, MO

Average pressure in August - Columbia, MO
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in August
Columbia, MO

Average wind speed in August - Columbia, MO
  • Average wind speed in August: 6.2mph

The windiest months (with the highest average wind speed) are January and March (9.4mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).

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Average humidity in August
Columbia, MO

Average humidity in August - Columbia, MO
  • Average humidity in August: 75%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Columbia, MO

Average rainfall in August - Columbia, MO
  • Average rainfall in August: 0.67"

The wettest month (with the highest rainfall) is May (1.3").
The driest months (with the least rainfall) are January and February (0.43").

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Average rainfall days in August
Columbia, MO

Average rainfall days in August - Columbia, MO
  • Average rainfall days in August: 8.2 days

The months with the highest number of rainy days are April and May (11.3 days).
The month with the least rainy days is January (3.8 days).

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Average snowfall in August
Columbia, MO

Average snowfall in August - Columbia, MO
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August and September (0").

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Average snowfall days in August
Columbia, MO

Average snowfall days in August - Columbia, MO
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Columbia, MO

Average daylight in August / Average sunshine in August - Columbia, MO
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
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 months with the least sunshine are January and February (Average sunshine: 4h and 42min).

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Average sunshine days in August
Columbia, MO

Average sunshine days in August - Columbia, MO
  • Average sunshine days in August: 19.8 days

The month with the most sunshine days is December (23.7 days).
The month with the least sunshine days is May (15.6 days).

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Average UV index in August
Columbia, MO

Average UV index in August - Columbia, MO
  • 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).

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Average cloud cover in August
Columbia, MO

Average cloud cover in August - Columbia, MO
  • Average cloud cover in August: 29

The months with the most cloud cover are January, February and March (Cloud cover 49).
The months with the least cloud cover are June, July and August (Cloud cover 29).

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Average visibility in August
Columbia, MO

Average visibility in August - Columbia, MO
  • 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).

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Columbia, Missouri, USA

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