August weather forecast
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 also a hot month in Jefferson City, Missouri, with an average temperature varying between 65.8°F (18.8°C) and 87.4°F (30.8°C).

Temperature

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

Heat index

In August, the average heat index is evaluated at a torrid 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 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 'feels like', 'felt air temperature', 'apparent temperature', or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, pregnancy, metabolic differences). 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. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. 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 is 73%.

Rainfall

In Jefferson City, Missouri, in August, during 8.6 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. In Jefferson City, Missouri, during the entire year, the rain falls for 93.7 days and collects up to 9.29" (236mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in August is 13h and 37min.
On the first day of August, sunrise is at 6:10 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:40 pm CDT.

Sunshine

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

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 6 in August transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in August in Jefferson City?

In Jefferson City, 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. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 100.4°F (38°C).

What is the average humidity in August in Jefferson City?

The average relative humidity in August is 73%.

How much does it rain in Jefferson City in August?

In August, in Jefferson City, Missouri, the rain falls for 8.6 days. Throughout August, 0.87" (22mm) of precipitation is accumulated.

When it does not snow in Jefferson City?

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

What is the average length of the day in August in Jefferson City?

The average day length in August is 13h and 37min.

When is the sunrise / sunset in August in Jefferson City?

On the first day of August, sunrise is at 6:10 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:40 pm CDT.

How long on average sun shines in August in Jefferson City?

In August, the average sunshine duration in Jefferson City is 10.3h.

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

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

What is the UV index intensity in August in Jefferson City?

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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"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).

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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").
The 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).
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
Jefferson City, MO

Average daylight in August / Average sunshine in August - Jefferson City, MO
  • Average daylight in August: 13h and 37min

The month with the longest days is June (Average daylight: 14h and 49min).
The month with the shortest days is December (Average daylight: 9h and 32min).

  • Average sunshine in August: 10h and 18min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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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

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
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).
The 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

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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