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 advent of August denotes an average high-temperature of a still warm 82.9°F (28.3°C), subtly different from July's 84.6°F (29.2°C). Preston's nighttime temperature during August is consistently averaged at a pleasant 68.4°F (20.2°C).Heat index
August's heat index is estimated at a tropical 91.4°F (33°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
May, August and September, with an average relative humidity of 79%, are the most humid months.Rainfall
The months with the most rainfall are July and August, with an average 2.01" (51mm) of precipitation.Snowfall
In Preston, snow does not fall in April, June through October.Daylight
In August, the average length of the day is 13h and 38min.On the first day of the month, sunrise is at 6:05 am and sunset at 8:14 pm. On the last day of August, in Preston, sunrise is at 6:32 am and sunset at 7:34 pm EDT.
Sunshine
The average sunshine in August is 10.5h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Preston. 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: In August, the maximum UV index of 6 suggests these recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
How hot is August in Preston?
What are the most humid months in Preston?
What is the average humidity in August in Preston?
What is the rainiest month in Preston?
How many days does it rain in August in Preston?
When it does not snow in Preston?
What is the average length of the day in August in Preston?
What time are sunrise and sunset in August in Preston?
How many hours of sunshine does Preston have in August?
When is the highest UV index in Preston?
How high is the UV index in August in Preston?
Average temperature in August
Preston, MD
- Average high temperature in August: 82.9°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (41.2°F).
- Average low temperature in August: 68.4°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).
Average pressure in August
Preston, MD
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in August
Preston, MD
- Average wind speed in August: 6mph
The windiest month (with the highest average wind speed) is February (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in August
Preston, MD
- Average humidity in August: 79%
The months with the highest relative humidity are May, August and September (79%).
The months with the lowest relative humidity are January, March and November (74%).
Average rainfall in August
Preston, MD
- Average rainfall in August: 2.01"
The wettest months (with the highest rainfall) are July and August (2.01").
The driest months (with the least rainfall) are January and September (0.94").
Average rainfall days in August
Preston, MD
- Average rainfall days in August: 15 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is November (7.2 days).
Average snowfall in August
Preston, MD
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in August
Preston, MD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (3 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Preston, MD
- 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 30min).
- Average sunshine in August: 10h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in August
Preston, MD
- Average sunshine days in August: 12.8 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in August
Preston, MD
- 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, November and December (UV index 2).
Average cloud cover in August
Preston, MD
- Average cloud cover in August: 29
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in August
Preston, MD
- 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).
Preston, Maryland, USA
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