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 average high-temperature in August, at a still moderately hot 82.6°F (28.1°C), reveals a modest deviation from July's 84.7°F (29.3°C). Morristown observes an average low-temperature of 61.9°F (16.6°C) during August nights.Heat index
August's average heat index is estimated at 84.2°F (29°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.Heat index evaluations are typically in the context of light winds and shaded environments. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humidity
The months with the lowest humidity in Morristown are August and September, with an average relative humidity of 51%.Rainfall
In Morristown, during August, the rain falls for 11.3 days and regularly aggregates up to 1.34" (34mm) of precipitation. Throughout the year, there are 101.3 rainfall days, and 14.25" (362mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in August in Morristown is 14h and 5min.On the first day of August in Morristown, sunrise is at 5:30 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 7:26 pm MDT.
Sunshine
With an average of 11.5h of sunshine, August has the most sunshine of the year in Morristown.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 6 during August translates into the following directions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Morristown during August?
What is the least humid month in Morristown?
What is the average humidity in August in Morristown?
How many days does it rain in August in Morristown?
When it does not snow in Morristown?
How many hours of daylight does Morristown have in August?
When is the sunrise / sunset in August in Morristown?
What month has the most sunshine in Morristown?
How many hours of sunshine does Morristown have in August?
When is the highest UV index in Morristown?
What is the UV index reading in August in Morristown?
Average temperature in August
Morristown, SD
- Average high temperature in August: 82.6°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in August: 61.9°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in August
Morristown, SD
- Average pressure in August: 29.9"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in August
Morristown, SD
- Average wind speed in August: 9.6mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).
Average humidity in August
Morristown, SD
- Average humidity in August: 51%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (51%).
Average rainfall in August
Morristown, SD
- Average rainfall in August: 1.34"
The wettest month (with the highest rainfall) is June (2.28").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in August
Morristown, SD
- Average rainfall days in August: 11.3 days
The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is January (2.9 days).
Average snowfall in August
Morristown, SD
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Morristown, SD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Morristown, SD
- Average daylight in August: 14h and 1min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in August: 11h and 3min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in August
Morristown, SD
- Average sunshine days in August: 16.3 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in August
Morristown, SD
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Morristown, SD
- Average cloud cover in August: 20
The months with the most cloud cover are January and February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in August
Morristown, SD
- 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).
Morristown, South Dakota, USA
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