August weather forecast
Hagerstown, MD

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Bright pink blossoms of flowers, clean paths, a bridge, and scenic trees in the neat lawns of a city park in Hagerstown, Maryland
Bright pink blossoms of flowers, clean paths, a bridge, and scenic trees in the neat lawns of a city park in Hagerstown, Maryland

Weather in August

A subtle decrease in temperature marks August weather in Hagerstown. While rainfall is less prevalent compared to July, humidity levels remain constant signalling typical summer's end. Hints of autumn can be faintly observed towards the month's latter part. The crossword of pre-fall and post-summer weather promotes intriguing changes in flora. Plan for diverse weather conditions as August can surprise with its transition phase.

Temperature

August registers an average high-temperature of a still moderately hot 82.2°F (27.9°C), slightly varied from July's 84.6°F (29.2°C). In Hagerstown, the August nights cool down to an average low of 61.5°F (16.4°C).

Heat index

In August, the heat index is estimated at a tropical 87.8°F (31°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.
Keep in mind the heat index values are meant for areas in shade and with light wind. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. 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.

Humidity

The average relative humidity in August is 77%.

Rainfall

In August, the rain falls for 16.6 days. Throughout August, 2.76" (70mm) of precipitation is accumulated. Throughout the year, there are 164.7 rainfall days, and 29.17" (741mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 41min.
On the first day of the month, sunrise is at 6:10 am and sunset at 8:23 pm. On the last day of August, sunrise is at 6:38 am and sunset at 7:43 pm EDT.

Sunshine

In Hagerstown, the average sunshine in August is 10.3h.

UV index

The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 5 during August translates into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

Frequently asked questions

What is the usual temperature for Hagerstown in August?

The average high-temperature, in August, in Hagerstown, is 82.2°F (27.9°C), while the average low-temperature is 61.5°F (16.4°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in August is estimated at 87.8°F (31°C).

What is the average humidity in August?

In August, the average relative humidity is 77%.

How much does it rain in August?

In Hagerstown, during August, the rain falls for 16.6 days and regularly aggregates up to 2.76" (70mm) of precipitation.

When it does not snow?

In Hagerstown, snow does not fall in May through September.

How many hours of daylight does Hagerstown have in August?

In August, the average day length is 13h and 41min.

When are sunrise and sunset in August?

On the first day of August in Hagerstown, sunrise is at 6:10 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:43 pm EDT.

How long on average sun shines in August?

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

What is the UV index intensity in August?

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average max. wind speed
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
Hagerstown, MD

Average temperature in August - Hagerstown, MD
  • Average high temperature in August: 82.2°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in August: 61.5°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

Average pressure in August
Hagerstown, MD

Average pressure in August - Hagerstown, MD
  • Average pressure in August: 30"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
Hagerstown, MD

Average wind speed in August - Hagerstown, MD
  • Average wind speed in August: 4.5mph

The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in August
Hagerstown, MD

Average humidity in August - Hagerstown, MD
  • Average humidity in August: 77%

The months with the highest relative humidity are May and October (79%).
The months with the lowest relative humidity are April and July (75%).

Average rainfall in August
Hagerstown, MD

Average rainfall in August - Hagerstown, MD
  • Average rainfall in August: 2.76"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (1.97").

Average rainfall days in August
Hagerstown, MD

Average rainfall days in August - Hagerstown, MD
  • Average rainfall days in August: 16.6 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.8 days).

Average snowfall in August
Hagerstown, MD

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

The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Hagerstown, MD

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

The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Hagerstown, 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 24min).

  • Average sunshine in August: 10h and 2min

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 42min).

Average sunshine days in August
Hagerstown, MD

Average sunshine days in August - Hagerstown, MD
  • Average sunshine days in August: 12.3 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in August
Hagerstown, MD

Average UV index in August - Hagerstown, MD
  • Average UV index in August: 5

The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in August
Hagerstown, MD

Average cloud cover in August - Hagerstown, MD
  • Average cloud cover in August: 33

The months with the most cloud cover are January, February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in August
Hagerstown, MD

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

The months with the highest visibility are April, June, July, August, November and December (6mi).
The months with the lowest visibility are January, February, March, May, September and October (5mi).

Hagerstown, Maryland, USA

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