August weather forecast
Preston, MO

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Weather in August

The last month of the summer, August, is another tropical month in Preston, Missouri, with an average temperature varying between 86.7°F (30.4°C) and 66.4°F (19.1°C).

Temperature

August's advent presents an average high-temperature of a still tropical 86.7°F (30.4°C), indicating a slight variation from the conditions of the previous month. An average low-temperature of 66.4°F (19.1°C) is expected in Preston during August.

Heat index

Throughout August, the heat index is appraised at a torrid 98.6°F (37°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In Preston, the average relative humidity in August is 73%.

Rainfall

In August, in Preston, the rain falls for 13.8 days. Throughout August, 2.83" (72mm) of precipitation is accumulated. Throughout the year, in Preston, there are 141.9 rainfall days, and 27.52" (699mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Preston.

Daylight

In August, the average length of the day is 13h and 35min.
On the first day of August in Preston, sunrise is at 6:16 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 7:43 pm CDT.

Sunshine

In August, the average sunshine in Preston is 10.3h.

UV index

The months with the highest UV index are May 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 exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August in Preston?

In August, in Preston, the average high-temperature is 86.7°F (30.4°C), and the average low-temperature is 66.4°F (19.1°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is appraised at 98.6°F (37°C).

What is the average humidity in August in Preston?

In Preston, the average relative humidity in August is 73%.

How much does it rain in Preston in August?

In Preston, during August, the rain falls for 13.8 days and regularly aggregates up to 2.83" (72mm) of precipitation.

When it does not snow in Preston?

May through October are months without snowfall in Preston.

How many hours of daylight does Preston have in August?

In Preston, the average day length in August is 13h and 35min.

When is the sunrise / sunset in August in Preston?

On the first day of August in Preston, Missouri, sunrise is at 6:16 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 7:43 pm CDT.

How long on average sun shines in August in Preston?

The average sunshine duration in August in Preston, Missouri, is 10.3h.

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

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

How high is the UV index in August in Preston?

In August, the average daily maximum UV index in Preston, Missouri, is 6. A UV Index of 6 to 7 symbolizes 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
Preston, MO

Average temperature in August - Preston, MO
  • Average high temperature in August: 86.7°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in August: 66.4°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

Average pressure in August
Preston, MO

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
Preston, MO

Average wind speed in August - Preston, MO
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is March (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).

Average humidity in August
Preston, MO

Average humidity in August - Preston, MO
  • Average humidity in August: 73%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
Preston, MO

Average rainfall in August - Preston, MO
  • Average rainfall in August: 2.83"

The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is January (1.18").

Average rainfall days in August
Preston, MO

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

The months with the highest number of rainy days are May and July (16.7 days).
The month with the least rainy days is December (6 days).

Average snowfall in August
Preston, MO

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

The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Preston, MO

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

The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Preston, MO
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • 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 January (Average sunshine: 5h and 6min).

Average sunshine days in August
Preston, MO

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

The month with the most sunshine days is December (20.7 days).
The month with the least sunshine days is July (11.7 days).

Average UV index in August
Preston, MO

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

Average cloud cover in August
Preston, MO

Average cloud cover in August - Preston, MO
  • Average cloud cover in August: 27

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

Average visibility in August
Preston, MO

Average visibility in August - Preston, 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).

Preston, Missouri, USA

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