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
As August takes hold, the average high-temperature is a warm 84.6°F (29.2°C), nearly mirroring that of the previous month. Gaithersburg records an average nighttime low-temperature of 66.4°F (19.1°C) throughout August.Heat index
For most parts of August, the heat index is estimated at a hot 93.2°F (34°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
The average relative humidity in August in Gaithersburg is 73%.Rainfall
August is the month with the most rainfall. Rain falls for 16.7 days and accumulates 3.82" (97mm) of precipitation.Snowfall
In Gaithersburg, snow does not fall in June through October.Daylight
In Gaithersburg, the average length of the day in August is 13h and 39min.On the first day of August in Gaithersburg, 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
In August, the average sunshine is 10.3h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Gaithersburg, Maryland. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: The daily maximum UV index of 6 in August interprets into the following advice:
Guard against overexposure. Protection from sun-induced harm is essential. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
Is it hot in Gaithersburg during August?
What is the average humidity in August in Gaithersburg?
What is the wettest month in Gaithersburg?
How much does it rain in Gaithersburg in August?
When it does not snow in Gaithersburg?
How many hours of daylight does Gaithersburg have in August?
When is the sunrise / sunset in August in Gaithersburg?
How long on average sun shines in August in Gaithersburg?
When is the highest UV index in Gaithersburg?
What is the UV index reading in August in Gaithersburg?
Average temperature in August
Gaithersburg, MD
- Average high temperature in August: 84.6°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in August: 66.4°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in August
Gaithersburg, 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
Gaithersburg, MD
- Average wind speed in August: 4.9mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in August
Gaithersburg, MD
- Average humidity in August: 73%
The months with the highest relative humidity are May, October and December (77%).
The month with the lowest relative humidity is July (72%).
Average rainfall in August
Gaithersburg, 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 (1.73").
Average rainfall days in August
Gaithersburg, MD
- Average rainfall days in August: 16.7 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in August
Gaithersburg, MD
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.76").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in August
Gaithersburg, MD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Gaithersburg, MD
- Average daylight in August: 13h and 4min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).
Average sunshine days in August
Gaithersburg, MD
- Average sunshine days in August: 11.9 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in August
Gaithersburg, 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, February, November and December (UV index 2).
Average cloud cover in August
Gaithersburg, 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
Gaithersburg, 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).
Gaithersburg, Maryland, USA
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