August weather forecast
Myrtle, MO

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Weather in August

August, the last month of the summer in Myrtle, is another tropical month, with an average temperature ranging between min 68.2°F (20.1°C) and max 88°F (31.1°C).

Temperature

With the onset of August, the average high-temperature registers at a still tropical 88°F (31.1°C), subtly different from July's 89.2°F (31.8°C). Nighttime temperatures in Myrtle, Missouri, hover around an average low of 68.2°F (20.1°C) in August.

Heat index

During August, the heat index is estimated at a very hot 102.2°F (39°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. 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 extremely significant 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.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In August, the average relative humidity is 74%.

Rainfall

In Myrtle, in August, it is raining for 14.3 days, with typically 2.8" (71mm) of accumulated precipitation. In Myrtle, during the entire year, the rain falls for 148.3 days and collects up to 35.87" (911mm) of precipitation.

Snowfall

In Myrtle, Missouri, snow does not fall in April through September.

Daylight

In August, the average length of the day is 13h and 31min.
On the first day of the month, sunrise is at 6:12 am and sunset at 8:10 pm. On the last day of August, in Myrtle, Missouri, sunrise is at 6:36 am and sunset at 7:34 pm CDT.

Sunshine

The average sunshine in August is 10.4h.

UV index

The average daily maximum UV index in August in Myrtle is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Fend off overexposure. Sun protection is vital. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Myrtle in August?

In Myrtle, 88°F (31.1°C) is the average high-temperature and 68.2°F (20.1°C) is the average low-temperature during August. In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is estimated at 102.2°F (39°C).

What is the average humidity in August in Myrtle?

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

How much does it rain in Myrtle in August?

In August, in Myrtle, Missouri, the rain falls for 14.3 days. Throughout August, 2.8" (71mm) of precipitation is accumulated.

When it does not snow in Myrtle?

April through September are months without snowfall in Myrtle, Missouri.

What is the average length of the day in August in Myrtle?

In Myrtle, Missouri, the average day length in August is 13h and 31min.

When are sunrise and sunset in August in Myrtle?

On the first day of August in Myrtle, sunrise is at 6:12 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:34 pm CDT.

How many hours of sunshine does Myrtle have in August?

The average sunshine duration in August in Myrtle, Missouri, is 10.4h.

What is the UV index reading in August in Myrtle?

In Myrtle, Missouri, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
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
Myrtle, MO

Average temperature in August - Myrtle, MO
  • Average high temperature in August: 88°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 (43.5°F).

  • Average low temperature in August: 68.2°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

Average pressure in August
Myrtle, MO

Average pressure in August - Myrtle, 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 (29.93"Hg).

Average wind speed in August
Myrtle, MO

Average wind speed in August - Myrtle, MO
  • Average wind speed in August: 5.6mph

The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

Average humidity in August
Myrtle, MO

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

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Myrtle, MO

Average rainfall in August - Myrtle, MO
  • Average rainfall in August: 2.8"

The wettest month (with the highest rainfall) is April (4.53").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in August
Myrtle, MO

Average rainfall days in August - Myrtle, MO
  • Average rainfall days in August: 14.3 days

The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (8.6 days).

Average snowfall in August
Myrtle, MO

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

The month with the highest snowfall is February (1.14").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in August
Myrtle, MO

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

The months with the highest number of snowfall days are January and February (2.8 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in August: 10h and 2min

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).

Average sunshine days in August
Myrtle, MO

Average sunshine days in August - Myrtle, MO
  • Average sunshine days in August: 15.1 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (13.5 days).

Average UV index in August
Myrtle, MO

Average UV index in August - Myrtle, MO
  • Average UV index in August: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in August
Myrtle, MO

Average cloud cover in August - Myrtle, MO
  • Average cloud cover in August: 29

The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in August
Myrtle, MO

Average visibility in August - Myrtle, 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).

Myrtle, Missouri, USA

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