August weather forecast
Summersville, MO

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Weather in August

August, the last month of the summer in Summersville, is also a hot month, with an average temperature ranging between max 87.6°F (30.9°C) and min 65.8°F (18.8°C).

Temperature

August ushers in an average high-temperature of a still hot 87.6°F (30.9°C), aligning closely with the preceding month. Summersville's nighttime temperature in August demonstrates a noticeable plunge to a refreshing 65.8°F (18.8°C).

Heat index

For most parts of August, the heat index is computed to be a sweltering 102.2°F (39°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Always consider that heat index estimations are for light winds and places in the shade. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

The average relative humidity in August in Summersville is 74%.

Rainfall

In Summersville, in August, during 14.9 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, in Summersville, there are 139.5 rainfall days, and 25.87" (657mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In August, the average length of the day is 13h and 32min.
On the first day of the month, sunrise is at 6:12 am and sunset at 8:13 pm. On the last day of August, in Summersville, sunrise is at 6:37 am and sunset at 7:36 pm CDT.

Sunshine

In August, the average sunshine is 10h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: An average UV index of 6 in August transforms into this advice:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August in Summersville?

In Summersville, 87.6°F (30.9°C) is the average high-temperature and 65.8°F (18.8°C) is the average low-temperature during August. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is computed to be 102.2°F (39°C).

What is the average humidity in August in Summersville?

In August, the average relative humidity in Summersville is 74%.

How much does it rain in Summersville in August?

In August, in Summersville, the rain falls for 14.9 days. Throughout August, 2.32" (59mm) of precipitation is accumulated.

When it does not snow in Summersville?

May through October are months without snowfall.

How many hours of daylight does Summersville have in August?

In Summersville, Missouri, the average day length in August is 13h and 32min.

When are sunrise and sunset in August in Summersville?

On the first day of August in Summersville, Missouri, sunrise is at 6:12 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:36 pm CDT.

How long on average sun shines in August in Summersville?

The average sunshine duration in August in Summersville, Missouri, is 10h.

What is the month with the highest UV index in Summersville?

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

What is the UV index reading in August in Summersville?

In August, the average daily maximum UV index is 6. A UV Index estimate 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
Summersville, MO

Average temperature in August - Summersville, MO
  • Average high temperature in August: 87.6°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in August: 65.8°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 (26.1°F).

Average pressure in August
Summersville, MO

Average pressure in August - Summersville, MO
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in August
Summersville, MO

Average wind speed in August - Summersville, MO
  • Average wind speed in August: 5.1mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.1mph).

Average humidity in August
Summersville, MO

Average humidity in August - Summersville, MO
  • Average humidity in August: 74%

The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (73%).

Average rainfall in August
Summersville, MO

Average rainfall in August - Summersville, MO
  • Average rainfall in August: 2.32"

The wettest months (with the highest rainfall) are April and May (3.15").
The driest month (with the least rainfall) is September (1.22").

Average rainfall days in August
Summersville, MO

Average rainfall days in August - Summersville, MO
  • Average rainfall days in August: 14.9 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is December (7 days).

Average snowfall in August
Summersville, MO

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

The month with the highest snowfall is February (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Summersville, MO

Average snowfall days in August - Summersville, 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 June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Summersville, MO
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in August
Summersville, MO

Average sunshine days in August - Summersville, MO
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is December (20.5 days).
The months with the least sunshine days are May and June (12.6 days).

Average UV index in August
Summersville, MO

Average UV index in August - Summersville, MO
  • 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 and December (UV index 2).

Average cloud cover in August
Summersville, MO

Average cloud cover in August - Summersville, MO
  • Average cloud cover in August: 33

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in August
Summersville, MO

Average visibility in August - Summersville, MO
  • Average visibility in August: 5mi

The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).

Summersville, Missouri, USA

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