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
An average high-temperature of a still warm 81.9°F (27.7°C) marks August, exhibiting a close resemblance to the conditions in July. Mount Vernon in August experiences a low-temperature average of 68.9°F (20.5°C).Heat index
The heat index for August is calculated to be a hot 86°F (30°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.Note that heat index values are valued for light wind and location in the shade. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Humidity
With an average relative humidity of 69%, August is the least humid month.Rainfall
In Mount Vernon, in August, it is raining for 16.5 days, with typically 3.31" (84mm) of accumulated precipitation. Throughout the year, there are 156.5 rainfall days, and 33.19" (843mm) of precipitation is accumulated.Snowfall
In Mount Vernon, snow does not fall in May through October.Daylight
The average length of the day in August is 13h and 46min.On the first day of the month, sunrise is at 5:52 am and sunset at 8:11 pm. On the last day of August, sunrise is at 6:21 am and sunset at 7:28 pm EDT.
Sunshine
The average sunshine in August is 10.4h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.Note: In August, an average UV index of 6 transforms into the following instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average August temperature?
What is the least humid month?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
How many hours of daylight does Mount Vernon have in August?
When is the sunrise / sunset in August?
How many hours of sunshine does Mount Vernon have in August?
What is the month with the highest UV index?
What is the UV index intensity in August?
Average temperature in August
Mount Vernon, NY
- Average high temperature in August: 81.9°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in August: 68.9°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in August
Mount Vernon, NY
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Mount Vernon, NY
- Average wind speed in August: 6.4mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity in August
Mount Vernon, NY
- Average humidity in August: 69%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (69%).
Average rainfall in August
Mount Vernon, NY
- Average rainfall in August: 3.31"
The wettest month (with the highest rainfall) is July (3.74").
The driest month (with the least rainfall) is February (2.01").
Average rainfall days in August
Mount Vernon, NY
- Average rainfall days in August: 16.5 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is January (8 days).
Average snowfall in August
Mount Vernon, NY
- Average snowfall in August: 0"
The month with the highest snowfall is March (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Mount Vernon, NY
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Mount Vernon, NY
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 10h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in August
Mount Vernon, NY
- Average sunshine days in August: 12.4 days
The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in August
Mount Vernon, NY
- 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, March, November and December (UV index 2).
Average cloud cover in August
Mount Vernon, NY
- Average cloud cover in August: 30
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in August
Mount Vernon, NY
- 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).
Mount Vernon, New York, USA
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