August weather forecast
Barstow, MD

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Weather in August

The last month of the summer, August, is also a moderately hot month in Barstow, Maryland, with an average temperature varying between 83.7°F (28.7°C) and 69.4°F (20.8°C).

Temperature

Barstow, Maryland, notes an average high-temperature of a still moderately hot 83.7°F (28.7°C) in August, displaying minor variation from July. Throughout August, an average nighttime temperature of 69.4°F (20.8°C) is experienced.

Heat index

August's mean heat index is estimated at a tropical 91.4°F (33°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.

Humidity

In Barstow, the average relative humidity in August is 76%.

Rainfall

In Barstow, during August, the rain falls for 17.7 days and regularly aggregates up to 4.33" (110mm) of precipitation. Throughout the year, there are 158.1 rainfall days, and 33.07" (840mm) of precipitation is accumulated.

Snowfall

In Barstow, snow does not fall in April through October.

Daylight

In Barstow, the average length of the day in August is 13h and 37min.
On the first day of the month, sunrise is at 6:08 am and sunset at 8:16 pm. On the last day of August, sunrise is at 6:35 am and sunset at 7:37 pm EDT.

Sunshine

The average sunshine in August 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 reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 6 during August leads to these instructions:
Resist overexposure. Safeguarding from solar damage is indispensable. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Updated: Jun 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

The high-temperature, in August, in Barstow, is 83.7°F (28.7°C), while the low-temperature averages to 69.4°F (20.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is estimated at 91.4°F (33°C).

What is the average humidity in August?

In Barstow, the average relative humidity in August is 76%.

How many days does it rain in August?

In Barstow, during August, the rain falls for 17.7 days and regularly aggregates up to 4.33" (110mm) of precipitation.

When it does not snow?

In Barstow, snow does not fall in April through October.

What is the average length of the day in August?

In August, the average day length is 13h and 37min.

What time are sunrise and sunset in August in Barstow?

On the first day of August, sunrise is at 6:08 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:37 pm EDT.

How many hours of sunshine does Barstow have in August?

The average sunshine duration in August is 10.2h.

What is the month with the highest UV index?

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 August, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents 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
Barstow, MD

Average temperature in August - Barstow, MD
  • Average high temperature in August: 83.7°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in August: 69.4°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (30°F).

Average pressure in August
Barstow, MD

Average pressure in August - Barstow, MD
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in August
Barstow, MD

Average wind speed in August - Barstow, MD
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is March (9.2mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).

Average humidity in August
Barstow, MD

Average humidity in August - Barstow, MD
  • Average humidity in August: 76%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is January (72%).

Average rainfall in August
Barstow, MD

Average rainfall in August - Barstow, MD
  • Average rainfall in August: 4.33"

The wettest month (with the highest rainfall) is July (4.41").
The driest month (with the least rainfall) is January (1.81").

Average rainfall days in August
Barstow, MD

Average rainfall days in August - Barstow, MD
  • Average rainfall days in August: 17.7 days

The month with the highest number of rainy days is August (17.7 days).
The month with the least rainy days is November (8 days).

Average snowfall in August
Barstow, MD

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

The month with the highest snowfall is January (1.85").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Barstow, MD

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

The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Barstow, MD
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
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 month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in August
Barstow, MD

Average sunshine days in August - Barstow, MD
  • Average sunshine days in August: 11.3 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (11.3 days).

Average UV index in August
Barstow, MD

Average UV index in August - Barstow, 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 and December (UV index 2).

Average cloud cover in August
Barstow, MD

Average cloud cover in August - Barstow, 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
Barstow, MD

Average visibility in August - Barstow, 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).

Barstow, Maryland, USA

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