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
Festus, Missouri, observes a minor difference in average high-temperatures between July's 88°F (31.1°C) and August's 86.2°F (30.1°C). In Festus, in August, the average low-temperature is an enjoyable 66.4°F (19.1°C).Heat index
For most parts of August, the heat index is computed to be a sweltering 98.6°F (37°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.Consider that heat index readings are for situations in the shade and light wind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
The average relative humidity in August is 75%.Rainfall
In August, the rain falls for 14.6 days. Throughout August, 3.43" (87mm) of precipitation is accumulated. In Festus, during the entire year, the rain falls for 155 days and collects up to 34.92" (887mm) of precipitation.Snowfall
In Festus, Missouri, snow does not fall in April through October.Daylight
In August, the average length of the day is 13h and 36min.On the first day of August in Festus, sunrise is at 6:04 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:32 pm CDT.
Sunshine
In August, the average sunshine in Festus, Missouri, is 10.3h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 6 in August transforms into this advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. 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. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
How hot is it in Festus in August?
What is the average humidity in August in Festus?
How many days does it rain in August in Festus?
When it does not snow in Festus?
What is the average length of the day in August in Festus?
When is the sunrise / sunset in August in Festus?
How long on average sun shines in August in Festus?
What is the month with the highest UV index in Festus?
How high is the UV index in August in Festus?
Average temperature in August
Festus, MO
- Average high temperature in August: 86.2°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in August: 66.4°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 (25.2°F).
Average pressure in August
Festus, 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
Festus, MO
- Average wind speed in August: 5.2mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in August
Festus, MO
- Average humidity in August: 75%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Festus, MO
- Average rainfall in August: 3.43"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is February (1.97").
Average rainfall days in August
Festus, MO
- Average rainfall days in August: 14.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in August
Festus, MO
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.36").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Festus, MO
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6.8 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
Festus, 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 months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in August
Festus, MO
- Average sunshine days in August: 13.8 days
The month with the most sunshine days is December (19.2 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in August
Festus, 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
Festus, MO
- Average cloud cover in August: 28
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are June, July and August (Cloud cover 28).
Average visibility in August
Festus, 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).
Festus, Missouri, USA
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