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
The arrival of August is marked by an average high-temperature of a still tropical 86.4°F (30.2°C), bearing a close resemblance to July. Nighttime temperatures in August average to an agreeable 68.5°F (20.3°C).Heat index
The heat index for August is calculated to be a torrid 98.6°F (37°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.Observations indicate that the heat index values are for shady locations with light wind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.
Humidity
The average relative humidity in August in Portageville is 77%.Rainfall
In August, the rain falls for 14.3 days. Throughout August, 2.64" (67mm) of precipitation is accumulated. Throughout the year, there are 156.9 rainfall days, and 37.8" (960mm) of precipitation is accumulated.Snowfall
April through September are months without snowfall.Daylight
In August, the average length of the day is 13h and 30min.On the first day of August, sunrise is at 6:05 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:27 pm CDT.
Sunshine
The average sunshine in August is 10.4h.UV index
The months with the highest UV index are May 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 average individuals.Note: A maximum UV index of 6 in August translates into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. 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. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in August?
What is the average humidity in August in Portageville?
How many days does it rain in August?
When it does not snow?
How many hours of daylight does Portageville have in August?
When is the sunrise / sunset in August?
How long on average sun shines in August?
What is the month with the highest UV index?
What is the UV index reading in August?
Average temperature in August
Portageville, MO
- Average high temperature in August: 86.4°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (43.2°F).
- Average low temperature in August: 68.5°F
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in August
Portageville, 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 (29.94"Hg).
Average wind speed in August
Portageville, MO
- Average wind speed in August: 5.8mph
The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in August
Portageville, MO
- Average humidity in August: 77%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (68%).
Average rainfall in August
Portageville, MO
- Average rainfall in August: 2.64"
The wettest months (with the highest rainfall) are March and April (4.37").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in August
Portageville, MO
- Average rainfall days in August: 14.3 days
The months with the highest number of rainy days are May and July (16.2 days).
The month with the least rainy days is November (10 days).
Average snowfall in August
Portageville, MO
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in August
Portageville, MO
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Portageville, 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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in August
Portageville, MO
- Average sunshine days in August: 14.5 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in August
Portageville, MO
- Average UV index in August: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in August
Portageville, MO
- Average cloud cover in August: 27
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 24).
Average visibility in August
Portageville, 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).
Portageville, Missouri, USA
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