Climate and monthly weather forecast
Hyannis Port, MA

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Weather in January

January, like December, in Hyannis Port, Massachusetts, is a wintry winter month, with an average temperature ranging between max 38.3°F (3.5°C) and min 30.4°F (-0.9°C). The coldest month is January, with an average high-temperature of 38.3°F (3.5°C) and an average low-temperature of 30.4°F (-0.9°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Hyannis Port, Massachusetts, with temperature in the range of an average high of 38.8°F (3.8°C) and an average low of 30.9°F (-0.6°C). The onset of February brings an average high-temperature of a still wintry 38.8°F (3.8°C), nearly matching the January temperature. Weather in February »

Weather in March

March, the first month of the spring in Hyannis Port, is still a cold month, with an average temperature varying between 35.2°F (1.8°C) and 41.5°F (5.3°C). Hyannis Port, Massachusetts, records an average high-temperature of a still icy 41.5°F (5.3°C) in March, closely mirroring the climate of the previous month. Weather in March »

Weather in April

April in Hyannis Port, Massachusetts, is a frosty spring month, with an average temperature fluctuating between 42.4°F (5.8°C) and 47.1°F (8.4°C). The arrival of April brings a soft temperature shift, with the average high-temperature nudging from an icy 41.5°F (5.3°C) in March to a chilly 47.1°F (8.4°C). Weather in April »

Weather in May

May, the last month of the spring in Hyannis Port, is a moderate month, with an average temperature varying between 55.4°F (13°C) and 50.9°F (10.5°C). May signals a minor shift in the average high-temperature, moving from April's chilly 47.1°F (8.4°C) to a mild 55.4°F (13°C). Weather in May »

Weather in June

June, the first month of the summer in Hyannis Port, is an enjoyable month, with an average temperature ranging between max 63.9°F (17.7°C) and min 59.4°F (15.2°C). Hyannis Port in June observes a minor temperature shift, with average high-temperatures adjusting from a moderate 55.4°F (13°C) in May to an enjoyable 63.9°F (17.7°C). Weather in June »

Weather in July

July is a pleasant summer month in Hyannis Port, Massachusetts, with an average temperature ranging between min 67.6°F (19.8°C) and max 72°F (22.2°C). July's arrival signals a subtle increase in average high-temperatures, moving from June's refreshing 63.9°F (17.7°C) to an agreeable 72°F (22.2°C). Weather in July »

Weather in August

The last month of the summer, August, is another pleasant month in Hyannis Port, Massachusetts, with an average temperature varying between 72.5°F (22.5°C) and 68.2°F (20.1°C). In Hyannis Port, the peak temperatures are generally noted in August, averaging a high of 72.5°F (22.5°C) and a low of 68.2°F (20.1°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a comfortable month in Hyannis Port, Massachusetts, with an average temperature fluctuating between 62.8°F (17.1°C) and 67.3°F (19.6°C). Hyannis Port ushers in September with an average high-temperature of an enjoyable 67.3°F (19.6°C), showing a close resemblance to the previous month. Weather in September »

Weather in October

October, the same as September, in Hyannis Port, Massachusetts, is another mild autumn month, with temperature in the range of an average high of 59.9°F (15.5°C) and an average low of 54.5°F (12.5°C). October sees a slight reduction in average high-temperature, with a shift from an enjoyable 67.3°F (19.6°C) in September to a moderate 59.9°F (15.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Hyannis Port, Massachusetts, with temperature in the range of an average high of 51.3°F (10.7°C) and an average low of 45°F (7.2°C). November marks a gentle change in average high-temperature, declining from October's moderate 59.9°F (15.5°C) to a cool 51.3°F (10.7°C). Weather in November »

Weather in December

December, the first month of the winter in Hyannis Port, is still a chilly month, with temperature in the range of an average low of 36.5°F (2.5°C) and an average high of 43.7°F (6.5°C). The commencement of December includes a gentle temperature shift, with the average high-temperature dropping a bit from a fresh 51.3°F (10.7°C) in November to a chilly 43.7°F (6.5°C). Weather in December »
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Frequently asked questions

What are the coldest months in Hyannis Port?

Hyannis Port's coldest month, January, generally records average temperatures ranging from a high of 38.3°F (3.5°C) to a low of 30.4°F (-0.9°C).

How much does it rain in Hyannis Port?

Throughout the year, in Hyannis Port, Massachusetts, there are 157.2 rainfall days, and 31.77" (807mm) of precipitation is accumulated.

When does it snow in Hyannis Port?

January through April and December are months with snowfall.

How many days does it snow in Hyannis Port?

In Hyannis Port, during the entire year, snow falls for 24.1 days and aggregates up to 6.1" (155mm) of snow.

What is the month with the lowest UV index in Hyannis Port?

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

When does it snow the most in Hyannis Port?

The month with the most snowfall is March, when snow falls for 5.2 days and typically aggregates up to 1.93" (49mm) of snow.

When is Daylight Saving Time (DST) in Hyannis Port?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Hyannis Port, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

When it does not snow in Hyannis Port?

May through November are months without snowfall in Hyannis Port.

When are the longest days in Hyannis Port?

June has the longest days of the year, with an average of 15h and 6min of daylight.

What is the most humid month in Hyannis Port?

The most humid month is July, with an average relative humidity of 84%.

What are the months with the highest UV index in Hyannis Port?

The months with the highest UV index in Hyannis Port, Massachusetts, are July and August, with an average maximum UV index of 6.

What is the warmest month in Hyannis Port?

August proves to be the warmest month in Hyannis Port, Massachusetts, recording an average peak temperature of 72.5°F (22.5°C) and a minimum temperature of 68.2°F (20.1°C).

What is the driest month in Hyannis Port?

The month with the least rainfall in Hyannis Port, Massachusetts, is August, when the rain falls for 12.4 days and typically collects 1.73" (44mm) of precipitation.

What month has the most sunshine in Hyannis Port?

With an average of 10.8h of sunshine, August has the most sunshine of the year.

What is the rainiest month in Hyannis Port?

The month with the most rainfall is October, when the rain falls for 14.5 days and typically aggregates up to 3.7" (94mm) of precipitation.

What is the least humid month in Hyannis Port?

The least humid month in Hyannis Port, Massachusetts, is November, with an average relative humidity of 74%.

What is the month with the shortest days in Hyannis Port?

December has the shortest days of the year in Hyannis Port, with an average of 9h and 12min of daylight.

What is the month with the least sunshine in Hyannis Port?

The month with the least sunshine in Hyannis Port is December, with an average of 4.6h of sunshine.

Average temperature
Hyannis Port, MA

Average temperature - Hyannis Port, MA

The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (38.3°F).

The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).

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Average pressure
Hyannis Port, MA

Average pressure - Hyannis Port, MA

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed
Hyannis Port, MA

Average wind speed - Hyannis Port, MA

The windiest month (with the highest average wind speed) is January (16.5mph).
The calmest month (with the lowest average wind speed) is August (10.6mph).

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Average rainfall
Hyannis Port, MA

Average rainfall - Hyannis Port, MA

The wettest month (with the highest rainfall) is October (3.7").
The driest month (with the least rainfall) is August (1.73").

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Average rainfall days
Hyannis Port, MA

Average rainfall days - Hyannis Port, MA

The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is February (10.3 days).

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Average snowfall
Hyannis Port, MA

Average snowfall - Hyannis Port, MA

The month with the highest snowfall is March (1.93").
The months with the least snowfall are May, June, July, August, September, October and November (0").

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Average snowfall days
Hyannis Port, MA

Average snowfall days - Hyannis Port, MA

The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Hyannis Port, MA

Average daylight / Average sunshine - Hyannis Port, MA

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

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Average sunshine days
Hyannis Port, MA

Average sunshine days - Hyannis Port, MA

The month with the most sunshine days is August (17.7 days).
The month with the least sunshine days is February (11.4 days).

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Average UV index
Hyannis Port, MA

Average UV index - Hyannis Port, MA

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

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Average visibility
Hyannis Port, MA

Average visibility - Hyannis Port, MA

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

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Hyannis Port, Massachusetts, USA

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