August weather forecast
Derwood, MD

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Weather in August

August, the last month of the summer in Derwood, is also a moderately hot month, with an average temperature varying between 66.4°F (19.1°C) and 84.6°F (29.2°C).

Temperature

August's advent denotes a minor fluctuation in the average high-temperature to a moderately hot 84.6°F (29.2°C) from July's 86.9°F (30.5°C). Derwood anticipates an average minimum temperature of 66.4°F (19.1°C) in the month of August.

Heat index

In August, the average heat index is appraised at a tropical 93.2°F (34°C). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.

Humidity

In Derwood, the average relative humidity in August is 73%.

Rainfall

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

Snowfall

June through October are months without snowfall.

Daylight

In Derwood, Maryland, the average length of the day in August is 13h and 39min.
On the first day of August, 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 Derwood, the average sunshine in August is 10.3h.

UV index

The months with the highest UV index in Derwood are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: A daily maximum UV index of 6 in August translates into the following instructions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
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Frequently asked questions

How hot is it in Derwood in August?

The high-temperature in Derwood during August is 84.6°F (29.2°C) and the low-temperature is 66.4°F (19.1°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in August is appraised at 93.2°F (34°C).

What is the average humidity in August in Derwood?

The average relative humidity in August in Derwood is 73%.

What is the wettest month in Derwood?

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

How much does it rain in Derwood in August?

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

When it does not snow in Derwood?

June through October are months without snowfall.

How many hours of daylight does Derwood have in August?

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

What time are sunrise and sunset in August in Derwood?

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 Derwood, sunrise is at 6:37 am and sunset at 7:40 pm EDT.

How many hours of sunshine does Derwood have in August?

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

What are the months with the highest UV index in Derwood?

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

How high is the UV index in August in Derwood?

The average daily maximum UV index in August in Derwood, Maryland, is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from 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
Derwood, MD

Average temperature in August - Derwood, 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
Derwood, MD

Average pressure in August - Derwood, 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
Derwood, MD

Average wind speed in August - Derwood, 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
Derwood, MD

Average humidity in August - Derwood, 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
Derwood, MD

Average rainfall in August - Derwood, 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
Derwood, MD

Average rainfall days in August - Derwood, 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
Derwood, MD

Average snowfall in August - Derwood, 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
Derwood, MD

Average snowfall days in August - Derwood, 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
Derwood, MD

Average daylight in August / Average sunshine in August - Derwood, 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
Derwood, MD

Average sunshine days in August - Derwood, 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
Derwood, MD

Average UV index in August - Derwood, 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
Derwood, MD

Average cloud cover in August - Derwood, 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
Derwood, MD

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

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