August weather forecast
Lee's Summit, MO

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A series of scenic cascading waterfalls on a unique creek in Lee
A series of scenic cascading waterfalls on a unique creek in Lee's Summit, Missouri, with cliffs and large rocks visible in the misty white water

Weather in August

August weather in Lee's Summit sees a slight cooldown from July's peak, though it remains within the core of summer. Daylight hours begin to truncate, signaling the slow approach of autumn. While it continues to be humid, with temperatures remaining high, rainfall remains fairly consistent. The receding heat makes the nights more pleasant, indicating the onset of fall. With plenty of sunlight still available, outdoor activities prevail in August.

Temperature

Lee's Summit records an average high-temperature of a warm 84.7°F (29.3°C) in August, maintaining a close correlation with July's 86.5°F (30.3°C). Lee's Summit, in August, witnesses an average low-temperature of 66.6°F (19.2°C).

Heat index

The heat index value for August is estimated at a torrid 95°F (35°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', determines the feeling of heat when you account for the relative humidity. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In Lee's Summit, the average relative humidity in August is 76%.

Rainfall

In Lee's Summit, in August, it is raining for 14.7 days, with typically 3.07" (78mm) of accumulated precipitation. Throughout the year, in Lee's Summit, there are 137.8 rainfall days, and 29.53" (750mm) of precipitation is accumulated.

Snowfall

In Lee's Summit, snow does not fall in June through September.

Daylight

In August, the average length of the day is 13h and 38min.
On the first day of August in Lee's Summit, sunrise is at 6:19 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:48 pm CDT.

Sunshine

In Lee's Summit, Missouri, the average sunshine in August 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 value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 6 in August interprets into the following advice:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Frequently asked questions

How hot does it get in August?

An average high-temperature, in August, in Lee's Summit, is 84.7°F (29.3°C) and the average low-temperature is 66.6°F (19.2°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is estimated at 95°F (35°C).

What is the average humidity in August in Lee's Summit?

In August, the average relative humidity is 76%.

How many days does it rain in August?

In Lee's Summit, during August, the rain falls for 14.7 days and regularly aggregates up to 3.07" (78mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in August?

The average day length in August is 13h and 38min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:19 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:48 pm CDT.

How long on average sun shines in August?

In Lee's Summit, the average sunshine duration in August is 10.2h.

What are the months with the highest UV index?

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

How high is the UV index in August?

In Lee's Summit, 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 unsafe 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
Lee's Summit, MO

Average temperature in August - Lee
  • Average high temperature in August: 84.7°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.4°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 (23.2°F).

Average pressure in August
Lee's Summit, MO

Average pressure in August - Lee
  • 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
Lee's Summit, MO

Average wind speed in August - Lee
  • Average wind speed in August: 6.4mph

The windiest months (with the highest average wind speed) are February, March and April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in August
Lee's Summit, MO

Average humidity in August - Lee
  • Average humidity in August: 76%

The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Lee's Summit, MO

Average rainfall in August - Lee
  • Average rainfall in August: 3.07"

The wettest month (with the highest rainfall) is May (4.29").
The driest month (with the least rainfall) is January (0.98").

Average rainfall days in August
Lee's Summit, MO

Average rainfall days in August - Lee
  • Average rainfall days in August: 14.7 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (5.6 days).

Average snowfall in August
Lee's Summit, MO

Average snowfall in August - Lee
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.83").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Lee's Summit, MO

Average snowfall days in August - Lee
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Lee's Summit, MO

Average daylight in August / Average sunshine in August - Lee
  • 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 month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in August
Lee's Summit, MO

Average sunshine days in August - Lee
  • Average sunshine days in August: 13.6 days

The month with the most sunshine days is December (22.2 days).
The month with the least sunshine days is June (11.8 days).

Average UV index in August
Lee's Summit, MO

Average UV index in August - Lee
  • 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, November and December (UV index 2).

Average cloud cover in August
Lee's Summit, MO

Average cloud cover in August - Lee
  • Average cloud cover in August: 27

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in August
Lee's Summit, MO

Average visibility in August - Lee
  • 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).

Lee's Summit, Missouri, USA

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