August weather forecast
Marlborough, NH

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Weather in August

The last month of the summer, August, is also a moderately hot month in Marlborough, New Hampshire, with an average temperature varying between 56.8°F (13.8°C) and 78.1°F (25.6°C).

Temperature

The arrival of August marks a slight shift to an average high-temperature of a still moderately hot 78.1°F (25.6°C) from July's 79.9°F (26.6°C). During August, Marlborough records an average temperature of 56.8°F (13.8°C) at night.

Humidity

In August, the average relative humidity is 77%.

Rainfall

In Marlborough, during August, the rain falls for 12 days and regularly aggregates up to 0.94" (24mm) of precipitation. In Marlborough, during the entire year, the rain falls for 125.1 days and collects up to 11.69" (297mm) of precipitation.

Snowfall

In Marlborough, snow does not fall in June through September.

Daylight

In August, the average length of the day is 13h and 53min.
On the first day of August, sunrise is at 5:40 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 7:24 pm EDT.

Sunshine

The month with the most sunshine in Marlborough is August, with an average of 10.3h of sunshine.

UV index

In Marlborough, New Hampshire, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 5 in August leads to these recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

What are the temperatures in Marlborough in August?

During August, Marlborough experiences an average high-temperature of 78.1°F (25.6°C) and a low-temperature of 56.8°F (13.8°C).

What is the average humidity in August in Marlborough?

The average relative humidity in August in Marlborough is 77%.

How much does it rain in Marlborough in August?

In August, in Marlborough, the rain falls for 12 days. Throughout August, 0.94" (24mm) of precipitation is accumulated.

When it does not snow in Marlborough?

June through September are months without snowfall in Marlborough, New Hampshire.

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

The average day length in August in Marlborough is 13h and 53min.

When is the sunrise / sunset in August in Marlborough?

In August, on the first day of the month, sunrise is at 5:40 am and sunset at 8:09 pm. On the last day of the month, in Marlborough, New Hampshire, sunrise is at 6:13 am and sunset at 7:24 pm EDT.

What month has the most sunshine in Marlborough?

The month with the most sunshine in Marlborough, New Hampshire, is August, with an average of 10.3h of sunshine.

How long on average sun shines in August in Marlborough?

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

What is the UV index reading in August in Marlborough?

The average daily maximum UV index in August in Marlborough is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Marlborough, NH

Average temperature in August - Marlborough, NH
  • Average high temperature in August: 78.1°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in August: 56.8°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

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Average pressure in August
Marlborough, NH

Average pressure in August - Marlborough, NH
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in August
Marlborough, NH

Average wind speed in August - Marlborough, NH
  • Average wind speed in August: 5.1mph

The windiest months (with the highest average wind speed) are January, February and March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in August
Marlborough, NH

Average humidity in August - Marlborough, NH
  • Average humidity in August: 77%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in August
Marlborough, NH

Average rainfall in August - Marlborough, NH
  • Average rainfall in August: 0.94"

The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is March (0.75").

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Average rainfall days in August
Marlborough, NH

Average rainfall days in August - Marlborough, NH
  • Average rainfall days in August: 12 days

The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (6.3 days).

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Average snowfall in August
Marlborough, NH

Average snowfall in August - Marlborough, NH
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.64").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Marlborough, NH

Average snowfall days in August - Marlborough, NH
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (9.4 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
Marlborough, NH

Average daylight in August / Average sunshine in August - Marlborough, NH
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in August
Marlborough, NH

Average sunshine days in August - Marlborough, NH
  • Average sunshine days in August: 15.8 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (13.8 days).

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Average UV index in August
Marlborough, NH

Average UV index in August - Marlborough, NH
  • Average UV index in August: 5

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

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Average cloud cover in August
Marlborough, NH

Average cloud cover in August - Marlborough, NH
  • Average cloud cover in August: 35

The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in August
Marlborough, NH

Average visibility in August - Marlborough, NH
  • Average visibility in August: 5mi

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

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Marlborough, New Hampshire, USA

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