August weather forecast
Cabin John, MD

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Weather in August

The last month of the summer, August, is another warm month in Cabin John, Maryland, with an average temperature fluctuating between 68°F (20°C) and 85.8°F (29.9°C).

Temperature

Cabin John's August average high-temperature settles at a moderately hot 85.8°F (29.9°C), showing a near match with the preceding month. Throughout August, the average low-temperature dips to an agreeable 68°F (20°C).

Heat index

In August, the heat index is appraised at a fiery hot 95°F (35°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In August, the average relative humidity 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

In August, the average length of the day is 13h and 38min.
On the first day of August, sunrise is at 6:10 am and sunset at 8:19 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 10.2h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

The average high-temperature and low-temperature in Cabin John during August are 85.8°F (29.9°C) and 68°F (20°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is appraised at 95°F (35°C).

What is the average humidity in August?

In August, the average relative humidity is 70%.

What is the wettest month?

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.

How many days does it rain in August?

In Cabin John, during August, the rain falls for 16.7 days and regularly aggregates up to 3.82" (97mm) of precipitation.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Cabin John have in August?

In Cabin John, the average day length in August is 13h and 38min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:10 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:40 pm EDT.

How many hours of sunshine does Cabin John have in August?

The average sunshine duration in August is 10.2h.

What are the months with the highest UV index in Cabin John?

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?

The average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to 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
Cabin John, MD

Average temperature in August - Cabin John, 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
Cabin John, MD

Average pressure in August - Cabin John, 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
Cabin John, MD

Average wind speed in August - Cabin John, 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
Cabin John, MD

Average humidity in August - Cabin John, 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
Cabin John, MD

Average rainfall in August - Cabin John, 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
Cabin John, MD

Average rainfall days in August - Cabin John, 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
Cabin John, MD

Average snowfall in August - Cabin John, 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
Cabin John, MD

Average snowfall days in August - Cabin John, 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
Cabin John, MD

Average daylight in August / Average sunshine in August - Cabin John, 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 1min

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
Cabin John, MD

Average sunshine days in August - Cabin John, 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
Cabin John, MD

Average UV index in August - Cabin John, 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
Cabin John, MD

Average cloud cover in August - Cabin John, 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
Cabin John, MD

Average visibility in August - Cabin John, 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).

Cabin John, Maryland, USA

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