August weather forecast
Chillicothe, MO

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Weather in August

August, the last month of the summer in Chillicothe, is also a moderately hot month, with an average temperature varying between 64.6°F (18.1°C) and 83.7°F (28.7°C).

Temperature

The advent of August reveals an average high-temperature of a still moderately hot 83.7°F (28.7°C), showing minimal difference from the prior month. In the month of August, the nighttime temperature dips to a steady average of 64.6°F (18.1°C).

Heat index

August's mean heat index is estimated at a hot 93.2°F (34°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. 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 highly critical for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.

Humidity

The average relative humidity in August is 79%.

Rainfall

In Chillicothe, in August, it is raining for 13.8 days, with typically 2.64" (67mm) of accumulated precipitation. Throughout the year, there are 137.4 rainfall days, and 28.82" (732mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in August is 13h and 41min.
On the first day of August, sunrise is at 6:13 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 7:46 pm CDT.

Sunshine

The average sunshine in August is 10h.

UV index

The months with the highest UV index in Chillicothe are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, the average maximum UV index of 6 translates into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

During August, Chillicothe experiences an average high-temperature of 83.7°F (28.7°C) and a low-temperature of 64.6°F (18.1°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is estimated at 93.2°F (34°C).

What is the average humidity in August?

In Chillicothe, the average relative humidity in August is 79%.

How much does it rain in August?

In Chillicothe, during August, the rain falls for 13.8 days and regularly aggregates up to 2.64" (67mm) of precipitation.

When it does not snow in Chillicothe?

In Chillicothe, snow does not fall in June through September.

How many hours of daylight does Chillicothe have in August?

In Chillicothe, the average day length in August is 13h and 41min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:13 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 7:46 pm CDT.

How many hours of sunshine does Chillicothe have in August?

In Chillicothe, the average sunshine duration in August is 10h.

When is the highest UV index?

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

What is the UV index reading in August?

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

Average temperature in August - Chillicothe, MO
  • Average high temperature in August: 83.7°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in August: 64.6°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 (20.5°F).

Average pressure in August
Chillicothe, MO

Average pressure in August - Chillicothe, MO
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in August
Chillicothe, MO

Average wind speed in August - Chillicothe, MO
  • Average wind speed in August: 6.3mph

The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in August
Chillicothe, MO

Average humidity in August - Chillicothe, MO
  • Average humidity in August: 79%

The months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Chillicothe, MO

Average rainfall in August - Chillicothe, MO
  • Average rainfall in August: 2.64"

The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is February (1.14").

Average rainfall days in August
Chillicothe, MO

Average rainfall days in August - Chillicothe, MO
  • Average rainfall days in August: 13.8 days

The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is January (5.5 days).

Average snowfall in August
Chillicothe, MO

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

The month with the highest snowfall is January (4.41").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Chillicothe, MO

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

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Chillicothe, 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 24min).

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in August
Chillicothe, MO

Average sunshine days in August - Chillicothe, MO
  • Average sunshine days in August: 15 days

The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is June (11.6 days).

Average UV index in August
Chillicothe, MO

Average UV index in August - Chillicothe, 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).

Average cloud cover in August
Chillicothe, MO

Average cloud cover in August - Chillicothe, MO
  • Average cloud cover in August: 28

The months with the most cloud cover are January and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in August
Chillicothe, MO

Average visibility in August - Chillicothe, 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).

Chillicothe, Missouri, USA

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