August weather forecast
Rosemary Hills, MD

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Weather in August

August, the last month of the summer in Rosemary Hills, is also a moderately hot month, with an average temperature varying between 68.2°F (20.1°C) and 85.6°F (29.8°C).

Temperature

In Rosemary Hills, August's average high-temperature stands at a moderately hot 85.6°F (29.8°C), closely related to the preceding month. Throughout August, the temperature falls to an average low of 68.2°F (20.1°C).

Heat index

In August, the average heat index is calculated to be a torrid 95°F (35°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Note that heat index values are valued for light wind and location in the shade. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In Rosemary Hills, the average relative humidity in August is 70%.

Rainfall

The month with the most rainfall is August, when the rain falls for 16.3 days and typically aggregates up to 3.86" (98mm) of precipitation.

Snowfall

In Rosemary Hills, snow does not fall in May through October.

Daylight

In Rosemary Hills, the average length of the day in August is 13h and 39min.
On the first day of August in Rosemary Hills, sunrise is at 6:09 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:39 pm EDT.

Sunshine

In August, the average sunshine is 10.1h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 6 in August transforms into the following instructions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. 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. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

During August, Rosemary Hills experiences an average high-temperature of 85.6°F (29.8°C) and a low-temperature of 68.2°F (20.1°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 95°F (35°C).

What is the average humidity in August?

The average relative humidity in August is 70%.

What is the wettest month?

August is the month with the most rainfall. Rain falls for 16.3 days and accumulates 3.86" (98mm) of precipitation.

How many days does it rain in August?

In Rosemary Hills, in August, during 16.3 rainfall days, 3.86" (98mm) of precipitation is typically accumulated.

When it does not snow?

In Rosemary Hills, snow does not fall in May through October.

How many hours of daylight does Rosemary Hills have in August?

In August, the average day length is 13h and 39min.

When are sunrise and sunset in August in Rosemary Hills?

In August, on the first day of the month, sunrise is at 6:09 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:39 pm EDT.

How long on average sun shines in August?

The average sunshine duration in August is 10.1h.

What are the months with the highest UV index?

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

What is the UV index reading in August?

In Rosemary Hills, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health risk 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
Rosemary Hills, MD

Average temperature in August - Rosemary Hills, MD
  • Average high temperature in August: 85.6°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in August: 68.2°F

The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).

Average pressure in August
Rosemary Hills, MD

Average pressure in August - Rosemary Hills, 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
Rosemary Hills, MD

Average wind speed in August - Rosemary Hills, MD
  • Average wind speed in August: 5.2mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in August
Rosemary Hills, MD

Average humidity in August - Rosemary Hills, MD
  • Average humidity in August: 70%

The months with the highest relative humidity are May, October and December (75%).
The month with the lowest relative humidity is July (69%).

Average rainfall in August
Rosemary Hills, MD

Average rainfall in August - Rosemary Hills, MD
  • Average rainfall in August: 3.86"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (1.89").

Average rainfall days in August
Rosemary Hills, MD

Average rainfall days in August - Rosemary Hills, MD
  • Average rainfall days in August: 16.3 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in August
Rosemary Hills, MD

Average snowfall in August - Rosemary Hills, MD
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Rosemary Hills, MD

Average snowfall days in August - Rosemary Hills, MD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.6 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
Rosemary Hills, MD

Average daylight in August / Average sunshine in August - Rosemary Hills, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in August
Rosemary Hills, MD

Average sunshine days in August - Rosemary Hills, MD
  • Average sunshine days in August: 13.8 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (12 days).

Average UV index in August
Rosemary Hills, MD

Average UV index in August - Rosemary Hills, 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
Rosemary Hills, MD

Average cloud cover in August - Rosemary Hills, MD
  • Average cloud cover in August: 34

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in August
Rosemary Hills, MD

Average visibility in August - Rosemary Hills, 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).

Rosemary Hills, Maryland, USA

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