August weather forecast
Washington Grove, MD

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Weather in August

August, the last month of the summer in Washington Grove, is another warm month, with an average temperature ranging between max 84.6°F (29.2°C) and min 66.4°F (19.1°C).

Temperature

August's climate shows a minor adjustment in average high-temperatures to a moderately hot 84.6°F (29.2°C) from July's 86.9°F (30.5°C). The mean low-temperature during August nights is an enjoyable 66.4°F (19.1°C).

Heat index

The heat index value for August is estimated at a tropical 93.2°F (34°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
When assessing, remember that heat index measurements are for light winds and shaded spots. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are particularly relevant to children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.

Humidity

In August, the average relative humidity 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 Washington Grove, snow does not fall in June through October.

Daylight

In Washington Grove, the average length of the day in August is 13h and 39min.
On the first day of August in Washington Grove, 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 in Washington Grove is 10.3h.

UV index

The months with the highest UV index in Washington Grove are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In August, the maximum UV index of 6 suggests this advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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Frequently asked questions

How hot is August in Washington Grove?

The high-temperature, in August, in Washington Grove, is 84.6°F (29.2°C), while the low-temperature averages to 66.4°F (19.1°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is estimated at 93.2°F (34°C).

What is the average humidity in August in Washington Grove?

The average relative humidity in August is 73%.

What is the rainiest month in Washington Grove?

August is the month with the most rainfall. Rain falls for 16.7 days and accumulates 3.82" (97mm) of precipitation.

How much does it rain in Washington Grove in August?

In Washington Grove, in August, it is raining for 16.7 days, with typically 3.82" (97mm) of accumulated precipitation.

When it does not snow in Washington Grove?

June through October are months without snowfall in Washington Grove.

How many hours of daylight does Washington Grove have in August?

The average day length in August is 13h and 39min.

When are sunrise and sunset in August in Washington Grove?

In August, on the first day of the month, sunrise is at 6:09 am and sunset at 8:20 pm. On the last day of the month, in Washington Grove, Maryland, sunrise is at 6:37 am and sunset at 7:40 pm EDT.

How long on average sun shines in August in Washington Grove?

The average sunshine duration in August is 10.3h.

What is the month with the highest UV index in Washington Grove?

The months with the highest UV index in Washington Grove are May through August, with an average maximum UV index of 6.

How high is the UV index in August in Washington Grove?

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Washington Grove, MD

Average temperature in August - Washington Grove, 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).

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Average pressure in August
Washington Grove, MD

Average pressure in August - Washington Grove, 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).

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Average wind speed in August
Washington Grove, MD

Average wind speed in August - Washington Grove, 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).

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Average humidity in August
Washington Grove, MD

Average humidity in August - Washington Grove, 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%).

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Average rainfall in August
Washington Grove, MD

Average rainfall in August - Washington Grove, 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").

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Average rainfall days in August
Washington Grove, MD

Average rainfall days in August - Washington Grove, 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).

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Average snowfall in August
Washington Grove, MD

Average snowfall in August - Washington Grove, 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").

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Average snowfall days in August
Washington Grove, MD

Average snowfall days in August - Washington Grove, 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).

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Average daylight in August /
Average sunshine in August
Washington Grove, MD

Average daylight in August / Average sunshine in August - Washington Grove, 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).

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Average sunshine days in August
Washington Grove, MD

Average sunshine days in August - Washington Grove, 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).

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Average UV index in August
Washington Grove, MD

Average UV index in August - Washington Grove, 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).

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Average cloud cover in August
Washington Grove, MD

Average cloud cover in August - Washington Grove, 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).

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Average visibility in August
Washington Grove, MD

Average visibility in August - Washington Grove, 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).

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Washington Grove, Maryland, USA

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