August weather forecast
Rockwell, MD

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Weather in August

August, the last month of the summer in Rockwell, is also a moderately hot month, with temperature in the range of an average low of 67.3°F (19.6°C) and an average high of 83.5°F (28.6°C).

Temperature

Welcoming August, Rockwell notes an average high-temperature of a still moderately hot 83.5°F (28.6°C), nearly consistent with July's 85.6°F (29.8°C). The average temperature during August nights dips to a comfortable 67.3°F (19.6°C).

Heat index

The heat index value for August is calculated to be a hot 89.6°F (32°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

In August, the average relative humidity is 73%.

Rainfall

The month with the most rainfall is August, when the rain falls for 15.9 days and typically aggregates up to 3.74" (95mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in August is 13h and 40min.
On the first day of August, sunrise is at 6:07 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:38 pm EDT.

Sunshine

The average sunshine in August in Rockwell is 10.4h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 6 in August translates into this advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

In August, in Rockwell, the average high-temperature is 83.5°F (28.6°C), and the average low-temperature is 67.3°F (19.6°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 89.6°F (32°C).

What is the average humidity in August?

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

What is the rainiest month?

August is the month with the most rainfall. Rain falls for 15.9 days and accumulates 3.74" (95mm) of precipitation.

How many days does it rain in August?

In Rockwell, in August, during 15.9 rainfall days, 3.74" (95mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall in Rockwell.

What is the average length of the day in August?

In Rockwell, the average day length in August is 13h and 40min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:07 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:38 pm EDT.

How long on average sun shines in August?

The average sunshine duration in August is 10.4h.

What are the months with the highest UV index?

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

What is the UV index intensity in August?

In Rockwell, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Rockwell, MD

Average temperature in August - Rockwell, MD
  • Average high temperature in August: 83.5°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in August: 67.3°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in August
Rockwell, MD

Average pressure in August - Rockwell, 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).

Average wind speed in August
Rockwell, MD

Average wind speed in August - Rockwell, MD
  • Average wind speed in August: 5.4mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in August
Rockwell, MD

Average humidity in August - Rockwell, MD
  • Average humidity in August: 73%

The months with the highest relative humidity are May and October (77%).
The month with the lowest relative humidity is July (71%).

Average rainfall in August
Rockwell, MD

Average rainfall in August - Rockwell, MD
  • Average rainfall in August: 3.74"

The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (2.05").

Average rainfall days in August
Rockwell, MD

Average rainfall days in August - Rockwell, MD
  • Average rainfall days in August: 15.9 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9.7 days).

Average snowfall in August
Rockwell, MD

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

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Rockwell, MD

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

The month with the highest number of snowfall days is January (4.9 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
Rockwell, MD

Average daylight in August / Average sunshine in August - Rockwell, 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 month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in August
Rockwell, MD

Average sunshine days in August - Rockwell, MD
  • Average sunshine days in August: 13 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).

Average UV index in August
Rockwell, MD

Average UV index in August - Rockwell, 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).

Average cloud cover in August
Rockwell, MD

Average cloud cover in August - Rockwell, MD
  • Average cloud cover in August: 31

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in August
Rockwell, MD

Average visibility in August - Rockwell, MD
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Rockwell, Maryland, USA

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