August weather forecast
Norfolk, MA

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Weather in August

The last month of the summer, August, is another warm month in Norfolk, Massachusetts, with an average temperature varying between 62.1°F (16.7°C) and 81°F (27.2°C).

Temperature

In August, Norfolk's weather conditions record an average high-temperature of a still moderately hot 81°F (27.2°C), demonstrating little divergence from the preceding month. Norfolk's nighttime temperature during August is consistently averaged at a comfortable 62.1°F (16.7°C).

Heat index

In August, the heat index is calculated to be a tropical 86°F (30°C). If one remains active during constant exposure, it might cause exhaustion and heat cramps.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.

Humidity

In August, the average relative humidity is 76%.

Rainfall

In Norfolk, in August, during 10.8 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. In Norfolk, during the entire year, the rain falls for 116.7 days and collects up to 10.91" (277mm) of precipitation.

Snowfall

June through September are months without snowfall in Norfolk.

Daylight

In August, the average length of the day is 13h and 50min.
On the first day of August in Norfolk, sunrise is at 5:39 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 7:20 pm EDT.

Sunshine

With an average of 10.2h of sunshine, August has the most sunshine of the year in Norfolk.

UV index

The months with the highest UV index in Norfolk are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In August, the maximum UV index of 6 suggests this advice:
Shield from overexposure. Defense against sun-related harm is required. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

What is the usual temperature for Norfolk in August?

In August, in Norfolk, the average high-temperature is 81°F (27.2°C), and the average low-temperature is 62.1°F (16.7°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is calculated to be 86°F (30°C).

What is the average humidity in August in Norfolk?

The average relative humidity in August in Norfolk is 76%.

How many days does it rain in August in Norfolk?

In Norfolk, in August, during 10.8 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

When it does not snow in Norfolk?

June through September are months without snowfall in Norfolk.

What is the average length of the day in August in Norfolk?

In August, the average day length is 13h and 50min.

When are sunrise and sunset in August in Norfolk?

On the first day of August in Norfolk, sunrise is at 5:39 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 7:20 pm EDT.

What month has the most sunshine in Norfolk?

The month with the most sunshine is August, with an average of 10.2h of sunshine.

How many hours of sunshine does Norfolk have in August?

The average sunshine duration in August is 10.2h.

What are the months with the highest UV index in Norfolk?

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

How high is the UV index in August in Norfolk?

In Norfolk, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high hazard to health 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
Norfolk, MA

Average temperature in August - Norfolk, MA
  • Average high temperature in August: 81°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in August: 62.1°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in August
Norfolk, MA

Average pressure in August - Norfolk, MA
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Norfolk, MA

Average wind speed in August - Norfolk, MA
  • Average wind speed in August: 5.8mph

The windiest months (with the highest average wind speed) are January, February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity in August
Norfolk, MA

Average humidity in August - Norfolk, MA
  • Average humidity in August: 76%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in August
Norfolk, MA

Average rainfall in August - Norfolk, MA
  • Average rainfall in August: 0.91"

The wettest month (with the highest rainfall) is July (1.18").
The driest month (with the least rainfall) is September (0.55").

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Average rainfall days in August
Norfolk, MA

Average rainfall days in August - Norfolk, MA
  • Average rainfall days in August: 10.8 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (6.2 days).

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Average snowfall in August
Norfolk, MA

Average snowfall in August - Norfolk, MA
  • Average snowfall in August: 0"

The month with the highest snowfall is March (1.61").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Norfolk, MA

Average snowfall days in August - Norfolk, MA
  • Average snowfall days in August: 0 days

The months with the highest number of snowfall days are January and February (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Norfolk, MA

Average daylight in August / Average sunshine in August - Norfolk, MA
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in August
Norfolk, MA

Average sunshine days in August - Norfolk, MA
  • Average sunshine days in August: 17.4 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (14.6 days).

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Average UV index in August
Norfolk, MA

Average UV index in August - Norfolk, MA
  • Average UV index in August: 6

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

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Average cloud cover in August
Norfolk, MA

Average cloud cover in August - Norfolk, MA
  • Average cloud cover in August: 35

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in August
Norfolk, MA

Average visibility in August - Norfolk, MA
  • Average visibility in August: 5mi

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

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Norfolk, Massachusetts, USA

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