Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August brings an average high-temperature of a still hot 87.1°F (30.6°C), showing a slight difference from July's 88.3°F (31.3°C). Throughout August, an average low-temperature of 65.8°F (18.8°C) is experienced.Heat index
August's heat index is computed to be a very hot 100.4°F (38°C). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.Always consider that heat index estimations are for light winds and places in the shade. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. 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 particularly important for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
In August, the average relative humidity is 75%.Rainfall
In Marthasville, during August, the rain falls for 13.8 days and regularly aggregates up to 3.03" (77mm) of precipitation. In Marthasville, during the entire year, the rain falls for 133.1 days and collects up to 27.24" (692mm) of precipitation.Snowfall
In Marthasville, snow does not fall in April through August and October.Daylight
In August, the average length of the day is 13h and 37min.On the first day of August, sunrise is at 6:06 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 7:35 pm CDT.
Sunshine
In August, the average sunshine is 10h.UV index
The months with the highest UV index in Marthasville are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The UV index of 6 during August translates into the following guidance:
Ward off overexposure. Defence against solar harm is crucial. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is August?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
Does it snow in August?
What is the average length of the day in August?
What time are sunrise and sunset in August?
How many hours of sunshine does Marthasville have in August?
What is the month with the highest UV index?
What is the UV index intensity in August?
Average temperature in August
Marthasville, MO
- Average high temperature in August: 87.1°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (38.1°F).
- Average low temperature in August: 65.8°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in August
Marthasville, 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 (29.92"Hg).
Average wind speed in August
Marthasville, MO
- Average wind speed in August: 5.3mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in August
Marthasville, MO
- Average humidity in August: 75%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Marthasville, MO
- Average rainfall in August: 3.03"
The wettest months (with the highest rainfall) are April and May (3.23").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days in August
Marthasville, MO
- Average rainfall days in August: 13.8 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in August
Marthasville, MO
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in August
Marthasville, MO
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Marthasville, 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 30min).
- Average sunshine in August: 10h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in August
Marthasville, MO
- Average sunshine days in August: 15.6 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in August
Marthasville, 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
Marthasville, MO
- Average cloud cover in August: 30
The months with the most cloud cover are January and February (Cloud cover 50).
The months with the least cloud cover are June, July and August (Cloud cover 30).
Average visibility in August
Marthasville, MO
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, June, July, September, October, November and December (6mi).
The months with the lowest visibility are May and August (5mi).
Marthasville, Missouri, USA
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