August weather forecast and climate
Mount Washington, NH

Weather in August

The last month of the summer, August, is another pleasant month in Mount Washington, New Hampshire, with average temperature varying between 73°F (22.8°C) and 52.9°F (11.6°C).

Temperature

In Mount Washington, the average high-temperature in August is relatively the same as in July - an agreeable 73°F (22.8°C). In Mount Washington, the average low-temperature is 52.9°F (11.6°C).

Humidity

In August, the average relative humidity is 80%.

Rainfall

In Mount Washington, during August, the rain falls for 15 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Mount Washington, during the entire year, the rain falls for 144.9 days and collects up to 20.08" (510mm) of precipitation.

Snowfall

June through September are months without snowfall in Mount Washington.

Daylight

In Mount Washington, the average length of the day is 14h.

Sunshine

The month with the most sunshine in Mount Washington is August, with an average of 9.8h of sunshine.

UV index

The average daily maximum UV index in August is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in August in Mount Washington?

In August, the average relative humidity in Mount Washington, New Hampshire, is 80%.

How much does it rain in Mount Washington in August?

In Mount Washington, in August, it is raining for 15 days, with typically 1.34" (34mm) of accumulated precipitation.

When it does not snow in Mount Washington?

In Mount Washington, New Hampshire, snow does not fall in June through September.

How many hours of daylight does Mount Washington have in August?

In August, the average length of the day in Mount Washington is 14h.

What month has the most sunshine in Mount Washington?

With an average of 9.8h of sunshine, August has the most sunshine of the year.

How many hours of sunshine does Mount Washington have in August?

In August, the average sunshine in Mount Washington is 9.8h.

How high is the UV index in August in Mount Washington?

In August, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to the UV radiation.

Average temperature in August
Mount Washington, NH

Average temperature in August - Mount Washington, NH
  • Average high temperature in August: 73°F

The warmest month (with the highest average high temperature) is July (75°F).
The month with the lowest average high temperature is January (21.7°F).

  • Average low temperature in August: 52.9°F

The month with the highest average low temperature is July (54.7°F).
The coldest month (with the lowest average low temperature) is January (8.4°F).

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Average pressure in August
Mount Washington, NH

Average pressure in August - Mount Washington, NH
  • Average pressure in August: 29.96"

The month with the highest atmospheric pressure is November (30.06").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in August
Mount Washington, NH

Average wind speed in August - Mount Washington, NH
  • Average wind speed in August: 4.4mph

The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

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Average humidity in August
Mount Washington, NH

Average humidity in August - Mount Washington, NH
  • Average humidity in August: 80%

The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (77%).

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Average rainfall in August
Mount Washington, NH

Average rainfall in August - Mount Washington, NH
  • Average rainfall in August: 1.34"

The wettest month (with the highest rainfall) is April (2.44").
The driest month (with the least rainfall) is September (0.94").

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Average rainfall days in August
Mount Washington, NH

Average rainfall days in August - Mount Washington, NH
  • Average rainfall days in August: 15 days

The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is November (8 days).

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Average snowfall in August
Mount Washington, NH

Average snowfall in August - Mount Washington, NH
  • Average snowfall in August: 0"

The month with the highest snowfall is January (11.42").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Mount Washington, NH

Average snowfall days in August - Mount Washington, NH
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (20.4 days).
Months with the least snowfall days are July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Mount Washington, NH

Average daylight in August / Average sunshine in August - Mount Washington, NH
  • Average daylight in August: 14h

The month with the longest days is June (Average daylight: 15.5h).
The month with the shortest days is December (Average daylight: 8.9h).

  • Average sunshine in August: 9.8h

The month with the most sunshine is August (Average sunshine: 9.8h).
The month with the least sunshine is February (Average sunshine: 3.5h).

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Average sunshine days in August
Mount Washington, NH

Average sunshine days in August - Mount Washington, NH
  • Average sunshine days in August: 12.4 days

The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is February (7.8 days).

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Average UV index in August
Mount Washington, NH

Average UV index in August - Mount Washington, NH
  • Average UV index in August: 4

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in August
Mount Washington, NH

Average cloud cover in August - Mount Washington, NH
  • Average cloud cover in August: 41

The month with the most cloud cover is February (Cloud cover 64).
Months with the least cloud cover are July, August and September (Cloud cover 41).

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Average visibility in August
Mount Washington, NH

Average visibility in August - Mount Washington, NH
  • Average visibility in August: 4mi

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

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