August weather forecastChevy Chase, MD
August
Weather in August
The last month of the summer, August, is another warm month in Chevy Chase, Maryland, with an average temperature ranging between max 85.8°F (29.9°C) and min 68°F (20°C).Temperature
The high-temperature average in August for Chevy Chase is a warm 85.8°F (29.9°C), staying closely aligned with July's conditions. During August, Chevy Chase experiences a consistent low-temperature average of 68°F (20°C).Heat index
Throughout August, the heat index is appraised at a torrid 95°F (35°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.Know that the heat index computations account for shaded terrains and slight winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. 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. 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 highly critical for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. 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 70%.Rainfall
The month with the most rainfall is August, when the rain falls for 16.7 days and typically aggregates up to 3.82" (97mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in August in Chevy Chase is 13h and 39min.On the first day of the month, sunrise is at 6:09 am and sunset at 8:19 pm. On the last day of August, sunrise is at 6:36 am and sunset at 7:39 pm EDT.
Sunshine
In August, the average sunshine is 10.2h.UV index
May 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 hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 6 in August interprets into the following advice:
Beware of overexposure. Fair-skinned individuals risk burning 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. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Chevy Chase, MD
- Average high temperature in August: 85.8°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (39.9°F).
- Average low temperature in August: 68°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 (27°F).
Average pressure in August
Chevy Chase, MD
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in August
Chevy Chase, MD
- Average wind speed in August: 5.1mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in August
Chevy Chase, MD
- Average humidity in August: 70%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (69%).
Average rainfall in August
Chevy Chase, MD
- Average rainfall in August: 3.82"
The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.69").
Average rainfall days in August
Chevy Chase, MD
- Average rainfall days in August: 16.7 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in August
Chevy Chase, MD
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Chevy Chase, MD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (4.4 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
Chevy Chase, MD
- Average daylight in August: 13h and 36min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in August: 10h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 0min).
Average sunshine days in August
Chevy Chase, MD
- Average sunshine days in August: 12.7 days
The month with the most sunshine days is November (20.4 days).
The months with the least sunshine days are May and July (12.3 days).
Average UV index in August
Chevy Chase, 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
Chevy Chase, MD
- Average cloud cover in August: 33
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in August
Chevy Chase, MD
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
