August weather forecast
Garrison, MD

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Weather in August

The last month of the summer, August, is also a moderately hot month in Garrison, Maryland, with temperature in the range of an average high of 83.1°F (28.4°C) and an average low of 66.6°F (19.2°C).

Temperature

The average high-temperature for August is a still warm 83.1°F (28.4°C), closely aligning with the temperature of the preceding month. Garrison records a consistent low-temperature of 66.6°F (19.2°C) during August nights.

Heat index

For most parts of August, the heat index is computed to be a tropical 89.6°F (32°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.
Heat index specifics point out values are for conditions of shade and a slight breeze. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.

Humidity

In Garrison, the average relative humidity in August is 75%.

Rainfall

The month with the most rainfall in Garrison is August, when the rain falls for 17.3 days and typically aggregates up to 4.37" (111mm) of precipitation.

Snowfall

In Garrison, snow does not fall in May through October.

Daylight

The average length of the day in August in Garrison is 13h and 40min.
On the first day of the month, sunrise is at 6:07 am and sunset at 8:19 pm. On the last day of August, in Garrison, sunrise is at 6:35 am and sunset at 7:39 pm EDT.

Sunshine

In August, the average sunshine in Garrison is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Garrison, Maryland. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 6 in August translates into the following instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

How hot does it get in Garrison in August?

The high-temperature, in August, in Garrison, is 83.1°F (28.4°C), while the low-temperature averages to 66.6°F (19.2°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is computed to be 89.6°F (32°C).

What is the average humidity in August in Garrison?

The average relative humidity in August in Garrison, Maryland, is 75%.

What is the wettest month in Garrison?

The month with the most rainfall in Garrison, Maryland, is August, when the rain falls for 17.3 days and typically aggregates up to 4.37" (111mm) of precipitation.

How many days does it rain in August in Garrison?

In August, the rain falls for 17.3 days. Throughout August, 4.37" (111mm) of precipitation is accumulated.

When it does not snow in Garrison?

May through October are months without snowfall in Garrison, Maryland.

How many hours of daylight does Garrison have in August?

The average day length in August in Garrison is 13h and 40min.

When is the sunrise / sunset in August in Garrison?

In August, on the first day of the month, sunrise is at 6:07 am and sunset at 8:19 pm. On the last day of the month, in Garrison, sunrise is at 6:35 am and sunset at 7:39 pm EDT.

How long on average sun shines in August in Garrison?

In Garrison, Maryland, the average sunshine duration in August is 10.3h.

When is the highest UV index in Garrison?

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

How high is the UV index in August in Garrison?

In August, the average daily maximum UV index in Garrison, Maryland, is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
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
Garrison, MD

Average temperature in August - Garrison, MD
  • Average high temperature in August: 83.1°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in August: 66.6°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

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Average pressure in August
Garrison, MD

Average pressure in August - Garrison, 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 (29.94"Hg).

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Average wind speed in August
Garrison, MD

Average wind speed in August - Garrison, MD
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in August
Garrison, MD

Average humidity in August - Garrison, MD
  • Average humidity in August: 75%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are April and July (73%).

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Average rainfall in August
Garrison, MD

Average rainfall in August - Garrison, MD
  • Average rainfall in August: 4.37"

The wettest month (with the highest rainfall) is August (4.37").
The driest months (with the least rainfall) are January and February (2.28").

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Average rainfall days in August
Garrison, MD

Average rainfall days in August - Garrison, MD
  • Average rainfall days in August: 17.3 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall in August
Garrison, MD

Average snowfall in August - Garrison, MD
  • Average snowfall in August: 0"

The month with the highest snowfall is March (3.39").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Garrison, MD

Average snowfall days in August - Garrison, MD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (6.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Garrison, MD

Average daylight in August / Average sunshine in August - Garrison, 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 24min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).

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Average sunshine days in August
Garrison, MD

Average sunshine days in August - Garrison, MD
  • Average sunshine days in August: 11.7 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (10.2 days).

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Average UV index in August
Garrison, MD

Average UV index in August - Garrison, 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
Garrison, MD

Average cloud cover in August - Garrison, MD
  • Average cloud cover in August: 32

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in August
Garrison, MD

Average visibility in August - Garrison, 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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Garrison, Maryland, USA

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