August weather forecast and climate
Jefferson City, MO

The State Capitol building surrounded by a beautiful park in Jefferson City, Missouri
The State Capitol building surrounded by a beautiful park in Jefferson City, Missouri

Weather in August

The last month of the summer, August, is another hot month in Jefferson City, Missouri, with average temperature fluctuating between 65.8°F (18.8°C) and 87.4°F (30.8°C).

Temperature

In August, the average high-temperature is almost the same as in July - a still tropical 87.4°F (30.8°C). In Jefferson City, the average low-temperature is 65.8°F (18.8°C).

Heat index

In August, the average heat index is appraised at a very hot 100.4°F (38°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like activity, metabolic differences, differences in body mass, height, and shape, and clothing affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In August, the average relative humidity in Jefferson City is 73%.

Rainfall

In August, in Jefferson City, Missouri, the rain falls for 8.6 days. Throughout August, 0.87" (22mm) of precipitation is accumulated. Throughout the year, there are 93.7 rainfall days, and 9.29" (236mm) of precipitation is accumulated.

Snowfall

In Jefferson City snow does not fall in April through October.

Daylight

The average length of the day in Jefferson City is 13.6h.

Sunshine

The average sunshine in August is 10.3h.

UV index

Months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in August in Jefferson City?

In Jefferson City, Missouri, in August, the average high-temperature is 87.4°F (30.8°C), and the average low-temperature is 65.8°F (18.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that represents influence of the relative humidity to air temperaure, in August is appraised at 100.4°F (38°C).

What is the average humidity in August in Jefferson City?

The average relative humidity in August in Jefferson City is 73%.

How much does it rain in Jefferson City in August?

In Jefferson City, Missouri, in August, it is raining for 8.6 days, with typically 0.87" (22mm) of accumulated precipitation.

When it does not snow in Jefferson City?

In Jefferson City snow does not fall in April through October.

How many hours of daylight does Jefferson City have in August?

In August, the average length of the day in Jefferson City, Missouri, is 13.6h.

How many hours of sunshine does Jefferson City have in August?

The average sunshine in August in Jefferson City is 10.3h.

What are the months with the highest UV index in Jefferson City?

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

How high is the UV index in August in Jefferson City?

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high hazard to health from the exposure to the Sun's UV rays.

Average temperature in August
Jefferson City, MO

Average temperature in August - Jefferson City, MO
  • Average high temperature in August: 87.4°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (38.5°F).

  • Average low temperature in August: 65.8°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in August
Jefferson City, MO

Average pressure in August - Jefferson City, MO
  • Average pressure in August: 29.97"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed in August
Jefferson City, MO

Average wind speed in August - Jefferson City, MO
  • Average wind speed in August: 5.8mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in August
Jefferson City, MO

Average humidity in August - Jefferson City, MO
  • Average humidity in August: 73%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in August
Jefferson City, MO

Average rainfall in August - Jefferson City, MO
  • Average rainfall in August: 0.87"

The wettest month (with the highest rainfall) is May (1.3").
The driest month (with the least rainfall) is November (0.47").

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Average rainfall days in August
Jefferson City, MO

Average rainfall days in August - Jefferson City, MO
  • Average rainfall days in August: 8.6 days

The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is January (4 days).

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Average snowfall in August
Jefferson City, MO

Average snowfall in August - Jefferson City, MO
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.71").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Jefferson City, MO

Average snowfall days in August - Jefferson City, MO
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (5.2 days).
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
Jefferson City, MO

Average daylight in August / Average sunshine in August - Jefferson City, MO
  • Average daylight in August: 13.6h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in August: 10.3h

The month with the most sunshine is June (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.8h).

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Average sunshine days in August
Jefferson City, MO

Average sunshine days in August - Jefferson City, MO
  • Average sunshine days in August: 19.8 days

The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is May (16.7 days).

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Average UV index in August
Jefferson City, MO

Average UV index in August - Jefferson City, MO
  • Average UV index in August: 6

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Jefferson City, MO

Average cloud cover in August - Jefferson City, MO
  • Average cloud cover in August: 28

The month with the most cloud cover is February (Cloud cover 49).
Months with the least cloud cover are June and August (Cloud cover 28).

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Average visibility in August
Jefferson City, MO

Average visibility in August - Jefferson City, MO
  • Average visibility in August: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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