Monthly weather forecast and climate
Seabrook, NH

Weather in January

January, like December, in Seabrook, New Hampshire, is a wintry winter month, with temperature in the range of an average low of 21.9°F (-5.6°C) and an average high of 32.5°F (0.3°C). The coldest month is January, with an average high-temperature of 32.5°F (0.3°C) and an average low-temperature of 21.9°F (-5.6°C). Weather in January »

Weather in February

February, the last month of the winter, in Seabrook, is also a wintry month, with average temperature varying between 23°F (-5°C) and 34.5°F (1.4°C). In February, the average high-temperature is almost the same as in January - a still wintry 34.5°F (1.4°C). Weather in February »

Weather in March

March, the first month of the spring, in Seabrook, is also a wintry month, with average temperature varying between 40.5°F (4.7°C) and 29.7°F (-1.3°C). In March, the average high-temperature marginally rises, from 34.5°F (1.4°C) in February, to a still wintry 40.5°F (4.7°C). Weather in March »

Weather in April

April in Seabrook, New Hampshire, is a fresh spring month, with average temperature ranging between min 39°F (3.9°C) and max 51.4°F (10.8°C). In Seabrook, the average high-temperature increases, from a wintry 40.5°F (4.7°C) in March, to a fresh 51.4°F (10.8°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Seabrook, New Hampshire, with average temperature varying between 61°F (16.1°C) and 48.4°F (9.1°C). In May, the average high-temperature rises, from a fresh 51.4°F (10.8°C) in April, to a comfortable 61°F (16.1°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Seabrook, New Hampshire, with average temperature ranging between max 69.4°F (20.8°C) and min 56.1°F (13.4°C). In Seabrook, New Hampshire, the average high-temperature in June marginally rises, from an enjoyable 61°F (16.1°C) in May, to a pleasant 69.4°F (20.8°C). Weather in June »

Weather in July

July is a warm summer month in Seabrook, New Hampshire, with average temperature varying between 76.5°F (24.7°C) and 63.1°F (17.3°C). July is the warmest month, with an average high-temperature of 76.5°F (24.7°C) and an average low-temperature of 63.1°F (17.3°C). Weather in July »

Weather in August

August, the last month of the summer, in Seabrook, is also a moderately hot month, with average temperature ranging between min 62.4°F (16.9°C) and max 75.7°F (24.3°C). In August, the average high-temperature is essentially the same as in July - a still warm 75.7°F (24.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Seabrook, New Hampshire, with average temperature ranging between min 56.7°F (13.7°C) and max 69.4°F (20.8°C). In September, the average high-temperature slightly decreases, from a moderately hot 75.7°F (24.3°C) in August, to an agreeable 69.4°F (20.8°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Seabrook, New Hampshire, with average temperature varying between 47.8°F (8.8°C) and 58.1°F (14.5°C). In Seabrook, the average high-temperature in October decreases, from an agreeable 69.4°F (20.8°C) in September, to a mild 58.1°F (14.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Seabrook, New Hampshire, with temperature in the range of an average low of 37.6°F (3.1°C) and an average high of 47.8°F (8.8°C). In Seabrook, New Hampshire, the average high-temperature drops, from a mild 58.1°F (14.5°C) in October, to a chilly 47.8°F (8.8°C). Weather in November »

Weather in December

December, the first month of the winter, in Seabrook, is also a wintry month, with average temperature varying between 38.3°F (3.5°C) and 28.9°F (-1.7°C). In Seabrook, the average high-temperature in December decreases, from a chilly 47.8°F (8.8°C) in November, to a cold 38.3°F (3.5°C). Weather in December »
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FAQ

What is the coldest month in Seabrook?

January is the coldest month, with an average high-temperature of 32.5°F (0.3°C) and an average low-temperature of 21.9°F (-5.6°C).

How much does it rain in Seabrook?

In Seabrook, during the entire year, the rain falls for 146.5 days and collects up to 27.52" (699mm) of precipitation.

When does it snow in Seabrook?

January through April, October through December are months with snowfall.

How much does it snow in Seabrook?

In Seabrook, during the entire year, snow falls for 33 days, and aggregates up to 15.24" (387mm) of snow.

What are the months with the lowest UV index in Seabrook?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Seabrook.

When does it snow the most in Seabrook?

February is the month with the most snowfall in Seabrook. Snow falls for 8.3 days and accumulates 4.02" (102mm) of snow.

What is the month with the least sunshine in Seabrook?

February and December, with an average of 4.8h of sunshine, are months with the least sunshine in Seabrook, New Hampshire.

When it does not snow in Seabrook?

In Seabrook, New Hampshire, snow does not fall in May through September.

What is the most humid month in Seabrook?

June and July, with an average relative humidity of 79%, are most humid months in Seabrook.

When are the longest days in Seabrook?

The month with the longest days in Seabrook, New Hampshire, is June, with an average of 15.3h of daylight.

What is the warmest month in Seabrook?

July is the warmest month, with an average high-temperature of 76.5°F (24.7°C) and an average low-temperature of 63.1°F (17.3°C).

When is the highest UV index in Seabrook?

Months with the highest UV index are July and August, with an average maximum UV index of 6.

What month has the most sunshine in Seabrook?

August has the most sunshine of the year in Seabrook, New Hampshire, with an average of 10.7h of sunshine.

What is the driest month in Seabrook?

The month with the least rainfall in Seabrook, New Hampshire, is September when the rain falls for 11.5 days and typically collects 1.54" (39mm) of precipitation.

What is the rainiest month in Seabrook?

Months with the most rainfall in Seabrook are October and December, with an average 2.83" (72mm) of precipitation.

What is the least humid month in Seabrook?

With an average relative humidity of 74%, November is the least humid month.

What is the month with the shortest days in Seabrook?

With an average of 9.1h of daylight, December has the shortest days of the year.

Average temperature
Seabrook, NH

Average temperature - Seabrook, NH

The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (32.5°F).

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

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Average pressure
Seabrook, NH

Average pressure - Seabrook, NH

The month with the highest atmospheric pressure is November (30.06").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed
Seabrook, NH

Average wind speed - Seabrook, NH

The windiest month (with the highest average wind speed) is January (12.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

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Average humidity
Seabrook, NH

Average humidity - Seabrook, NH

Months with the highest relative humidity are June and July (79%).
The month with the lowest relative humidity is November (74%).

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Average rainfall
Seabrook, NH

Average rainfall - Seabrook, NH

The wettest months (with the highest rainfall) are October and December (2.83").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days
Seabrook, NH

Average rainfall days - Seabrook, NH

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (7.7 days).

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Average snowfall
Seabrook, NH

Average snowfall - Seabrook, NH

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

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Average snowfall days
Seabrook, NH

Average snowfall days - Seabrook, NH

Months with the highest number of snowfall days are January and February (8.3 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Seabrook, NH

Average daylight / Average sunshine - Seabrook, NH

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

The month with the most sunshine is August (Average sunshine: 10.7h).
Months with the least sunshine are February and December (Average sunshine: 4.8).

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Average sunshine days
Seabrook, NH

Average sunshine days - Seabrook, NH

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is April (13.1 days).

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Average UV index
Seabrook, NH

Average UV index - Seabrook, NH

Months with the highest UV index are July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average visibility
Seabrook, NH

Average visibility - Seabrook, NH

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

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