Monthly weather forecast and climate
Mount Washington, NH

Weather in January

January, like December, is another subzero cold winter month in Mount Washington, New Hampshire, with average temperature varying between 21.7°F (-5.7°C) and 8.4°F (-13.1°C). January is the coldest month, with an average high-temperature of 21.7°F (-5.7°C) and an average low-temperature of 8.4°F (-13.1°C). Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Mount Washington, New Hampshire, with average temperature ranging between min 10.2°F (-12.1°C) and max 23.7°F (-4.6°C). In February, the average high-temperature is essentially the same as in January - a still freezing cold 23.7°F (-4.6°C). Weather in February »

Weather in March

The first month of the spring, March, is a wintry month in Mount Washington, New Hampshire, with average temperature fluctuating between 18°F (-7.8°C) and 32.5°F (0.3°C). In Mount Washington, New Hampshire, the average high-temperature in March slightly increases, from a subzero cold 23.7°F (-4.6°C) in February, to a cold 32.5°F (0.3°C). Weather in March »

Weather in April

April in Mount Washington, New Hampshire, is a frosty spring month, with average temperature varying between 45.7°F (7.6°C) and 29.8°F (-1.2°C). In Mount Washington, the average high-temperature in April increases, from a wintry 32.5°F (0.3°C) in March, to a chilly 45.7°F (7.6°C). Weather in April »

Weather in May

May, the last month of the spring, in Mount Washington, is an enjoyable month, with average temperature varying between 41.4°F (5.2°C) and 60.8°F (16°C). In Mount Washington, the average high-temperature increases considerably, from a chilly 45.7°F (7.6°C) in April, to an enjoyable 60.8°F (16°C). Weather in May »

Weather in June

June, the first month of the summer, in Mount Washington, is an agreeable month, with average temperature varying between 48.6°F (9.2°C) and 68.2°F (20.1°C). In June, the average high-temperature marginally rises, from a comfortable 60.8°F (16°C) in May, to an agreeable 68.2°F (20.1°C). Weather in June »

Weather in July

July in Mount Washington, New Hampshire, is a moderately hot summer month, with average temperature varying between 54.7°F (12.6°C) and 75°F (23.9°C). July is the warmest month, with an average high-temperature of 75°F (23.9°C) and an average low-temperature of 54.7°F (12.6°C). Weather in July »

Weather in August

The last month of the summer, August, is also an agreeable month in Mount Washington, New Hampshire, with average temperature varying between 52.9°F (11.6°C) and 73°F (22.8°C). In Mount Washington, New Hampshire, the average high-temperature is practically the same as in July - a pleasant 73°F (22.8°C). Weather in August »

Weather in September

September, the first month of the autumn, in Mount Washington, is still a comfortable month, with temperature in the range of an average low of 46.9°F (8.3°C) and an average high of 66°F (18.9°C). In September, the average high-temperature slightly decreases, from an agreeable 73°F (22.8°C) in August, to an enjoyable 66°F (18.9°C). Weather in September »

Weather in October

October, like September, in Mount Washington, New Hampshire, is another fresh autumn month, with average temperature ranging between min 37°F (2.8°C) and max 50.7°F (10.4°C). In Mount Washington, the average high-temperature declines considerably, from an enjoyable 66°F (18.9°C) in September, to a fresh 50.7°F (10.4°C). Weather in October »

Weather in November

November, the last month of the autumn, in Mount Washington, is also a wintry month, with average temperature ranging between min 25.9°F (-3.4°C) and max 37.8°F (3.2°C). In Mount Washington, the average high-temperature decreases, from a cool 50.7°F (10.4°C) in October, to a cold 37.8°F (3.2°C). Weather in November »

Weather in December

The first month of the winter, December, is also a subzero cold month in Mount Washington, New Hampshire, with average temperature varying between 16.7°F (-8.5°C) and 26.8°F (-2.9°C). In December, the average high-temperature drops, from a wintry 37.8°F (3.2°C) in November, to a freezing cold 26.8°F (-2.9°C). Weather in December »
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FAQ

What is the coldest month in Mount Washington?

January is the coldest month, with an average high-temperature of 21.7°F (-5.7°C) and an average low-temperature of 8.4°F (-13.1°C).

How many days does it rain in Mount Washington?

In Mount Washington, New Hampshire, during the entire year, the rain falls for 144.9 days and collects up to 20.08" (510mm) of precipitation.

When does it snow in Mount Washington?

Months with snowfall are January through May, October through December.

How many days does it snow in Mount Washington?

Throughout the year, in Mount Washington, New Hampshire, there are 116.2 snowfall days, and 68.07" (1729mm) of snow is accumulated.

What is the snowiest month in Mount Washington?

January is the month with the most snowfall in Mount Washington, New Hampshire. Snow falls for 20.4 days and accumulates 11.42" (290mm) of snow.

What is the most humid month in Mount Washington?

The most humid month in Mount Washington, New Hampshire, is February, with an average relative humidity of 90%.

What is the month with the least sunshine in Mount Washington?

The month with the least sunshine in Mount Washington, New Hampshire, is February, with an average of 3.5h of sunshine.

What are the months with the lowest UV index in Mount Washington?

Months with the lowest UV index in Mount Washington, New Hampshire, are February and December, with an average maximum UV index of 1.

What is the rainiest month in Mount Washington?

April is the month with the most rainfall in Mount Washington. Rain falls for 12.8 days and accumulates 2.44" (62mm) of precipitation.

What is the least humid month in Mount Washington?

With an average relative humidity of 77%, May is the least humid month.

When it does not snow in Mount Washington?

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

When are the longest days in Mount Washington?

The month with the longest days in Mount Washington is June, with an average of 15.5h of daylight.

What are the months with the highest UV index in Mount Washington?

June and July, with an average maximum UV index of 5, are months with the highest UV index.

What is the warmest month in Mount Washington?

The warmest month is July, with an average high-temperature of 75°F (23.9°C) and an average low-temperature of 54.7°F (12.6°C).

What month has the most sunshine in Mount Washington?

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

What is the driest month in Mount Washington?

The month with the least rainfall in Mount Washington, New Hampshire, is September when the rain falls for 10.6 days and typically collects 0.94" (24mm) of precipitation.

What is the month with the shortest days in Mount Washington?

With an average of 8.9h of daylight, December has the shortest days of the year in Mount Washington, New Hampshire.

Average temperature
Mount Washington, NH

Average temperature - Mount Washington, NH

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).

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
Mount Washington, NH

Average pressure - Mount Washington, NH

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
Mount Washington, NH

Average wind speed - Mount Washington, NH

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
Mount Washington, NH

Average humidity - Mount Washington, NH

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
Mount Washington, NH

Average rainfall - Mount Washington, NH

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
Mount Washington, NH

Average rainfall days - Mount Washington, NH

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
Mount Washington, NH

Average snowfall - Mount Washington, NH

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
Mount Washington, NH

Average snowfall days - Mount Washington, NH

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 / Average sunshine
Mount Washington, NH

Average daylight / Average sunshine - Mount Washington, NH

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

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
Mount Washington, NH

Average sunshine days - Mount Washington, NH

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 visibility
Mount Washington, NH

Average visibility - Mount Washington, NH

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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