August weather forecast
Chilmark, MA

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Weather in August

August, the last month of the summer in Chilmark, is a moderately hot month, with an average temperature varying between 73.9°F (23.3°C) and 69.4°F (20.8°C).

Temperature

August is the month when Chilmark's temperatures reach their peak, with averages of 73.9°F (23.3°C) and lows of 69.4°F (20.8°C).

Humidity

The average relative humidity in August is 80%.

Rainfall

The months with the least rainfall are August and November Rain falls for 13.3 days and accumulates 1.73" (44mm) of rain.

Snowfall

April through November are months without snowfall.

Daylight

The average length of the day in August is 13h and 47min.
On the first day of the month, sunrise is at 5:38 am and sunset at 7:59 pm. On the last day of August, in Chilmark, sunrise is at 6:09 am and sunset at 7:17 pm EDT.

Sunshine

With an average of 10.7h of sunshine, August has the most sunshine of the year in Chilmark.

UV index

The months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 6 in August leads to these recommendations:
Shield from overexposure. Defense against sun-related harm is required. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

What are the warmest months in Chilmark?

August is the month when Chilmark, Massachusetts, experiences its warmest temperatures, averaging a high of 73.9°F (23.3°C) and a low of 69.4°F (20.8°C).

What is the average August temperature in Chilmark?

Chilmark in August has an average high-temperature of 73.9°F (23.3°C) and an average low-temperature of 69.4°F (20.8°C).

What is the average humidity in August in Chilmark?

In August, the average relative humidity in Chilmark is 80%.

What is the driest month in Chilmark?

August and November are months with the least rain in Chilmark when the rain falls for 13.3 days and typically aggregates up to 1.73" (44mm) of rain.

How many days does it rain in August in Chilmark?

In August, in Chilmark, the rain falls for 13.3 days. Throughout August, 1.73" (44mm) of precipitation is accumulated.

When it does not snow in Chilmark?

April through November are months without snowfall in Chilmark.

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

In Chilmark, the average day length in August is 13h and 47min.

When is the sunrise / sunset in August in Chilmark?

On the first day of August, sunrise is at 5:38 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 7:17 pm EDT.

What month has the most sunshine in Chilmark?

The month with the most sunshine in Chilmark, Massachusetts, is August, with an average of 10.7h of sunshine.

How many hours of sunshine does Chilmark have in August?

The average sunshine duration in August in Chilmark, Massachusetts, is 10.7h.

When is the highest UV index in Chilmark?

The months with the highest UV index in Chilmark are July and August, with an average maximum UV index of 6.

What is the UV index reading in August in Chilmark?

In Chilmark, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to 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
Chilmark, MA

Average temperature in August - Chilmark, MA
  • Average high temperature in August: 73.9°F

The warmest month (with the highest average high temperature) is August (73.9°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in August: 69.4°F

The month with the highest average low temperature is August (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

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Average pressure in August
Chilmark, MA

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

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in August
Chilmark, MA

Average wind speed in August - Chilmark, MA
  • Average wind speed in August: 10.9mph

The windiest month (with the highest average wind speed) is January (16.2mph).
The calmest months (with the lowest average wind speed) are July and August (10.9mph).

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Average humidity in August
Chilmark, MA

Average humidity in August - Chilmark, MA
  • Average humidity in August: 80%

The months with the highest relative humidity are May, June and July (83%).
The month with the lowest relative humidity is November (74%).

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Average rainfall in August
Chilmark, MA

Average rainfall in August - Chilmark, MA
  • Average rainfall in August: 1.73"

The wettest month (with the highest rainfall) is October (3.07").
The driest months (with the least rainfall) are August and November (1.73").

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Average rainfall days in August
Chilmark, MA

Average rainfall days in August - Chilmark, MA
  • Average rainfall days in August: 13.3 days

The month with the highest number of rainy days is April (14.5 days).
The month with the least rainy days is February (8.6 days).

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Average snowfall in August
Chilmark, MA

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

The month with the highest snowfall is March (1.18").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in August
Chilmark, MA

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

The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in August: 10h and 4min

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

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Average sunshine days in August
Chilmark, MA

Average sunshine days in August - Chilmark, MA
  • Average sunshine days in August: 15.9 days

The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is April (13.5 days).

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Average UV index in August
Chilmark, MA

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

The months with the highest UV index are 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
Chilmark, MA

Average cloud cover in August - Chilmark, MA
  • Average cloud cover in August: 27

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in August
Chilmark, MA

Average visibility in August - Chilmark, MA
  • 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).

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Chilmark, Massachusetts, USA

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