August weather forecastGreen Valley, MD
August
Weather in August
August, the last month of the summer in Green Valley, is another warm month, with an average temperature fluctuating between 85.8°F (29.9°C) and 68°F (20°C).Temperature
As Green Valley welcomes August, the average high-temperature records at a moderately hot 85.8°F (29.9°C), marking an insignificant deviation from the prior month. Green Valley, during the nights of August, experiences an average temperature drop to a pleasant 68°F (20°C).Heat index
During August, the heat index is evaluated at a fiery hot 95°F (35°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.Take note of the fact that heat index values are based on shaded circumstances with light airflows. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.
Humidity
The average relative humidity in August is 72%.Rainfall
The month with the most rainfall is August, when the rain falls for 15.5 days and typically aggregates up to 3.46" (88mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
The average length of the day in August in Green Valley is 13h and 40min.On the first day of August in Green Valley, sunrise is at 6:09 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:40 pm EDT.
Sunshine
The average sunshine in August is 10.3h.UV index
The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In August, the average maximum UV index of 6 translates into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Green Valley, MD
- Average high temperature in August: 85.8°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in August: 68°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).
Average pressure in August
Green Valley, 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
Green Valley, MD
- Average wind speed in August: 5mph
The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in August
Green Valley, MD
- Average humidity in August: 72%
The month with the highest relative humidity is May (76%).
The months with the lowest relative humidity are April and July (71%).
Average rainfall in August
Green Valley, MD
- Average rainfall in August: 3.46"
The wettest month (with the highest rainfall) is August (3.46").
The driest month (with the least rainfall) is January (1.57").
Average rainfall days in August
Green Valley, MD
- Average rainfall days in August: 15.5 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is November (8.1 days).
Average snowfall in August
Green Valley, MD
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in August
Green Valley, MD
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (3.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Green Valley, MD
- Average daylight in August: 13h and 42min
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 18min
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 6min).
Average sunshine days in August
Green Valley, MD
- Average sunshine days in August: 13 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in August
Green Valley, MD
- Average UV index in August: 6
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in August
Green Valley, MD
- Average cloud cover in August: 32
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in August
Green Valley, 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).





