August weather forecast
Grafton, NH

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Weather in August

The last month of the summer, August, is another warm month in Grafton, New Hampshire, with an average temperature ranging between max 77.2°F (25.1°C) and min 55.9°F (13.3°C).

Temperature

Grafton's August showcases an average high-temperature of a still moderately hot 77.2°F (25.1°C), hardly distinct from July's 79°F (26.1°C). Grafton, during the nights of August, experiences an average temperature drop to a refreshing 55.9°F (13.3°C).

Humidity

In August, the average relative humidity in Grafton is 78%.

Rainfall

In Grafton, during August, the rain falls for 10.6 days and regularly aggregates up to 0.98" (25mm) of precipitation. In Grafton, during the entire year, the rain falls for 103.3 days and collects up to 12.52" (318mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Grafton, the average length of the day in August is 13h and 55min.
On the first day of the month, sunrise is at 5:38 am and sunset at 8:10 pm. On the last day of August, sunrise is at 6:11 am and sunset at 7:24 pm EDT.

Sunshine

The month with the most sunshine in Grafton is August, with an average of 10.1h of sunshine.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index in Grafton, New Hampshire. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 5 in August transforms into the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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Frequently asked questions

What are the temperatures in Grafton in August?

August temperatures in Grafton vary between a high-temperature of 77.2°F (25.1°C) and a low-temperature of 55.9°F (13.3°C).

What is the average humidity in August in Grafton?

The average relative humidity in August in Grafton is 78%.

How many days does it rain in August in Grafton?

In August, the rain falls for 10.6 days. Throughout August, 0.98" (25mm) of precipitation is accumulated.

When it does not snow in Grafton?

June through September are months without snowfall in Grafton.

How many hours of daylight does Grafton have in August?

In Grafton, the average day length in August is 13h and 55min.

When is the sunrise / sunset in August in Grafton?

On the first day of August in Grafton, sunrise is at 5:38 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 7:24 pm EDT.

What month has the most sunshine in Grafton?

The month with the most sunshine is August, with an average of 10.1h of sunshine.

How many hours of sunshine does Grafton have in August?

In August, the average sunshine duration in Grafton, New Hampshire, is 10.1h.

What is the month with the highest UV index in Grafton?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Grafton.

What is the UV index reading in August in Grafton?

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe 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
Grafton, NH

Average temperature in August - Grafton, NH
  • Average high temperature in August: 77.2°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (25.9°F).

  • Average low temperature in August: 55.9°F

The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).

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Average pressure in August
Grafton, NH

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

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in August
Grafton, NH

Average wind speed in August - Grafton, NH
  • Average wind speed in August: 4.9mph

The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

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Average humidity in August
Grafton, NH

Average humidity in August - Grafton, NH
  • Average humidity in August: 78%

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and May (75%).

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Average rainfall in August
Grafton, NH

Average rainfall in August - Grafton, NH
  • Average rainfall in August: 0.98"

The wettest month (with the highest rainfall) is October (1.54").
The driest month (with the least rainfall) is January (0.71").

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Average rainfall days in August
Grafton, NH

Average rainfall days in August - Grafton, NH
  • Average rainfall days in August: 10.6 days

The month with the highest number of rainy days is July (11.6 days).
The month with the least rainy days is February (3.4 days).

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Average snowfall in August
Grafton, NH

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

The month with the highest snowfall is February (4.02").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Grafton, NH

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

The month with the highest number of snowfall days is February (10.1 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
Grafton, NH

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

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).

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Average sunshine days in August
Grafton, NH

Average sunshine days in August - Grafton, NH
  • Average sunshine days in August: 18.5 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is February (16.1 days).

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Average UV index in August
Grafton, NH

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in August
Grafton, NH

Average cloud cover in August - Grafton, NH
  • Average cloud cover in August: 36

The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 36).

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Average visibility in August
Grafton, NH

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

The months with the highest visibility are January, March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are February and September (4mi).

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Grafton, New Hampshire, USA

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