August weather forecastRives, MO
August
Weather in August
The last month of the summer, August, is another hot month in Rives, Missouri, with an average temperature fluctuating between 69.1°F (20.6°C) and 86.5°F (30.3°C).Temperature
As August takes hold, the average high-temperature is a still hot 86.5°F (30.3°C), nearly mirroring that of the previous month. Throughout the month of August, Rives expects an average low of 69.1°F (20.6°C).Heat index
The average heat index in August is estimated at a torrid 100.4°F (38°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
The average relative humidity in August is 77%.Rainfall
In Rives, in August, it is raining for 13.9 days, with typically 2.44" (62mm) of accumulated precipitation. In Rives, during the entire year, the rain falls for 151.4 days and collects up to 36.18" (919mm) of precipitation.Snowfall
In Rives, snow does not fall in April through September.Daylight
In August, the average length of the day is 13h and 29min.On the first day of August, sunrise is at 6:07 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:28 pm CDT.
Sunshine
In Rives, the average sunshine in August is 10.4h.UV index
The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 6 in August translates into this advice:
Guard against overexposure. Protection from sun-induced harm is essential. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Rives, MO
- Average high temperature in August: 86.5°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (44.6°F).
- Average low temperature in August: 69.1°F
The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (31.8°F).
Average pressure in August
Rives, MO
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in August
Rives, 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
Rives, 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 (67%).
Average rainfall in August
Rives, MO
- Average rainfall in August: 2.44"
The wettest month (with the highest rainfall) is March (4.09").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in August
Rives, MO
- Average rainfall days in August: 13.9 days
The month with the highest number of rainy days is May (15.8 days).
The months with the least rainy days are January, October and November (9.7 days).
Average snowfall in August
Rives, MO
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in August
Rives, MO
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.3 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
Rives, MO
- Average daylight in August: 13h and 30min
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 48min).
- Average sunshine in August: 10h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in August
Rives, MO
- Average sunshine days in August: 15.7 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is May (13.3 days).
Average UV index in August
Rives, 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, February and December (UV index 2).
Average cloud cover in August
Rives, MO
- Average cloud cover in August: 27
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in August
Rives, 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).





