August weather forecast
Manchester, MD

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Weather in August

Manchester, Maryland maintains its summer charm in August, with the weather characterized by warmth and sun-filled days. The heat of July subsides slightly, but temperatures remain considerably high, contributing to an agreeable atmosphere. Mid-summer thunderstorms can still occur, similar to July but less intense. August also sees a decrease in daylight hours, but the difference is barely noticeable. The end of the month signals the initial shift from high summer to early autumn.

Temperature

August ushers in an average high-temperature of a still moderately hot 81°F (27.2°C), aligning closely with the preceding month. In the month of August, the temperature in Manchester generally rests at an average low of 62.4°F (16.9°C).

Heat index

In August, the average heat index is calculated to be a tropical 86°F (30°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.
In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.

Humidity

In Manchester, the average relative humidity in August is 79%.

Rainfall

The months with the most rainfall are July and August, with an average 2.01" (51mm) of precipitation.

Snowfall

May through September are months without snowfall in Manchester.

Daylight

The average length of the day in August is 13h and 41min.
On the first day of the month, sunrise is at 6:07 am and sunset at 8:20 pm. On the last day of August, sunrise is at 6:35 am and sunset at 7:39 pm EDT.

Sunshine

In Manchester, the average sunshine in August 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 of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 6 during August leads to these instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Updated: Jul 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures in Manchester?

The high-temperature, in August, in Manchester, records 81°F (27.2°C), while the low-temperature is 62.4°F (16.9°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is calculated to be 86°F (30°C).

What is the average humidity in August?

In August, the average relative humidity is 79%.

What is the wettest month?

The months with the most rainfall are July and August, with an average 2.01" (51mm) of precipitation.

How much does it rain in August?

In Manchester, Maryland, during August, the rain falls for 13.5 days and regularly aggregates up to 2.01" (51mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in August?

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

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:07 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:39 pm EDT.

How long on average sun shines in August?

In Manchester, Maryland, the average sunshine duration in August is 10.1h.

What is the month with the highest UV index?

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

What is the UV index intensity in August?

The average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
Manchester, MD

Average temperature in August - Manchester, MD
  • Average high temperature in August: 81°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in August: 62.4°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

Average pressure in August
Manchester, MD

Average pressure in August - Manchester, MD
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Manchester, MD

Average wind speed in August - Manchester, MD
  • Average wind speed in August: 5mph

The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in August
Manchester, MD

Average humidity in August - Manchester, MD
  • Average humidity in August: 79%

The months with the highest relative humidity are February, May and October (80%).
The months with the lowest relative humidity are March and April (76%).

Average rainfall in August
Manchester, MD

Average rainfall in August - Manchester, MD
  • Average rainfall in August: 2.01"

The wettest months (with the highest rainfall) are July and August (2.01").
The driest month (with the least rainfall) is January (1.06").

Average rainfall days in August
Manchester, MD

Average rainfall days in August - Manchester, MD
  • Average rainfall days in August: 13.5 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (6 days).

Average snowfall in August
Manchester, MD

Average snowfall in August - Manchester, 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 and September (0").

Average snowfall days in August
Manchester, MD

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

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Manchester, 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 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 36min).

Average sunshine days in August
Manchester, MD

Average sunshine days in August - Manchester, MD
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is May (12.8 days).

Average UV index in August
Manchester, MD

Average UV index in August - Manchester, 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
Manchester, MD

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

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

Average visibility in August
Manchester, MD

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

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

Manchester, Maryland, USA

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