Climate and monthly weather forecast
West Harwich, MA

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Weather in January

January, like December, in West Harwich, Massachusetts, is an icy winter month, with an average temperature ranging between max 38.5°F (3.6°C) and min 30.6°F (-0.8°C). In West Harwich, the lowest temperatures are generally noted in January, averaging a high of 38.5°F (3.6°C) and a low of 30.6°F (-0.8°C). Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in West Harwich, Massachusetts, with temperature in the range of an average low of 31.1°F (-0.5°C) and an average high of 38.8°F (3.8°C). West Harwich marks the onset of February with an average high-temperature of a still icy 38.8°F (3.8°C), subtly divergent from January's 38.5°F (3.6°C). Weather in February »

Weather in March

March, the first month of the spring in West Harwich, is also an icy month, with an average temperature fluctuating between 35.6°F (2°C) and 41.4°F (5.2°C). The arrival of March denotes a barely perceptible change in the average high-temperatures to a still icy 41.4°F (5.2°C) from February's 38.8°F (3.8°C). Weather in March »

Weather in April

April in West Harwich, Massachusetts, is a frosty spring month, with an average temperature ranging between max 47.1°F (8.4°C) and min 42.4°F (5.8°C). The shift into April is marked by a modest rise in the average high-temperature, moving from March's icy 41.4°F (5.2°C) to a frosty 47.1°F (8.4°C). Weather in April »

Weather in May

May, the last month of the spring in West Harwich, is a fresh month, with an average temperature fluctuating between 51.3°F (10.7°C) and 55°F (12.8°C). West Harwich observes a slight uplift in the average high-temperature with the onset of May, adjusting from April's frosty 47.1°F (8.4°C) to a fresh 55°F (12.8°C). Weather in May »

Weather in June

June, the first month of the summer in West Harwich, is an enjoyable month, with an average temperature varying between 63.5°F (17.5°C) and 59.4°F (15.2°C). June's arrival signals a subtle increase in average high-temperatures, moving from May's cool 55°F (12.8°C) to a refreshing 63.5°F (17.5°C). Weather in June »

Weather in July

July in West Harwich, Massachusetts, is an agreeable summer month, with temperature in the range of an average high of 71.6°F (22°C) and an average low of 67.6°F (19.8°C). July's onset is marked by a subtle temperature increase, moving from a comfortable 63.5°F (17.5°C) in June to a pleasant 71.6°F (22°C). Weather in July »

Weather in August

The last month of the summer, August, is another pleasant month in West Harwich, Massachusetts, with an average temperature fluctuating between 72.1°F (22.3°C) and 68.5°F (20.3°C). August registers as the month with the highest average temperatures, reaching 72.1°F (22.3°C) at its peak and 68.5°F (20.3°C) at the lowest. Weather in August »

Weather in September

September, the first month of the autumn in West Harwich, is still a comfortable month, with an average temperature ranging between min 63°F (17.2°C) and max 67.1°F (19.5°C). West Harwich records an average high-temperature of a refreshing 67.1°F (19.5°C) as September arrives, nearly mirroring the previous month's climate. Weather in September »

Weather in October

October, like September, is another refreshing autumn month in West Harwich, Massachusetts, with an average temperature ranging between min 54.7°F (12.6°C) and max 59.9°F (15.5°C). In October, the meteorological conditions change slightly, with the average high-temperature moving from a comfortable 67.1°F (19.5°C) in September to a mild 59.9°F (15.5°C). Weather in October »

Weather in November

November, the last month of the autumn in West Harwich, is also a fresh month, with an average temperature fluctuating between 45.1°F (7.3°C) and 51.3°F (10.7°C). In West Harwich, entering November brings a subtle temperature decrement, reducing from October's refreshing 59.9°F (15.5°C) to a cool 51.3°F (10.7°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in West Harwich, Massachusetts, with an average temperature ranging between max 43.7°F (6.5°C) and min 36.9°F (2.7°C). The average high-temperature shows a slight dip in December, from November's fresh 51.3°F (10.7°C) to a frosty 43.7°F (6.5°C). Weather in December »
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

January, on average, is the coldest month in West Harwich, registering a high temperature of 38.5°F (3.6°C) and a low of 30.6°F (-0.8°C).

How much does it rain?

Throughout the year, there are 129 rainfall days, and 14.21" (361mm) of precipitation is accumulated.

When does it snow?

January through April and December are months with snowfall.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 6.4 days and accumulates 0.87" (22mm) of snow.

How many days does it snow?

In West Harwich, Massachusetts, during the entire year, snow falls for 20.8 days and aggregates up to 2.6" (66mm) of snow.

What is the month with the lowest UV index?

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

What is the month with the least sunshine?

February and December, with an average of 4.6h of sunshine, are months with the least sunshine.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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 West Harwich?

May through November are months without snowfall in West Harwich.

What is the most humid month?

June and July, with an average relative humidity of 84%, are most humid months.

When are the longest days in West Harwich?

June has the longest days of the year, with an average of 15h and 12min of daylight.

What are the months with the highest UV index?

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

What part of the year is the hottest?

During the warmest month in West Harwich, August, temperatures average a high of 72.1°F (22.3°C) and a low of 68.5°F (20.3°C).

What is the driest month?

The month with the least rainfall is August, when the rain falls for 11.2 days and typically collects 0.94" (24mm) of precipitation.

What month has the most sunshine?

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

What is the wettest month?

October is the month with the most rainfall. Rain falls for 11.6 days and accumulates 1.93" (49mm) of precipitation.

What is the least humid month?

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

What is the month with the shortest days?

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

Average temperature
West Harwich, MA

Average temperature - West Harwich, MA

The warmest month (with the highest average high temperature) is August (72.1°F).
The month with the lowest average high temperature is January (38.5°F).

The month with the highest average low temperature is August (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure
West Harwich, MA

Average pressure - West Harwich, 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).

Average wind speed
West Harwich, MA

Average wind speed - West Harwich, MA

The windiest month (with the highest average wind speed) is January (16.8mph).
The calmest months (with the lowest average wind speed) are July and August (10.9mph).

Average humidity
West Harwich, MA

Average humidity - West Harwich, MA

The months with the highest relative humidity are June and July (84%).
The month with the lowest relative humidity is November (74%).

Average rainfall
West Harwich, MA

Average rainfall - West Harwich, MA

The wettest month (with the highest rainfall) is October (1.93").
The driest month (with the least rainfall) is August (0.94").

Average rainfall days
West Harwich, MA

Average rainfall days - West Harwich, MA

The month with the highest number of rainy days is May (12.5 days).
The month with the least rainy days is February (8.3 days).

Average snowfall
West Harwich, MA

Average snowfall - West Harwich, MA

The month with the highest snowfall is January (0.87").
The months with the least snowfall are May, June, July, August, September, October and November (0").

Average snowfall days
West Harwich, MA

Average snowfall days - West Harwich, MA

The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
West Harwich, MA

Average daylight / Average sunshine - West Harwich, MA

The month with the longest days is June (Average daylight: 15h and 12min).
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 months with the least sunshine are February and December (Average sunshine: 4h and 36min).

Average sunshine days
West Harwich, MA

Average sunshine days - West Harwich, MA

The month with the most sunshine days is September (18.6 days).
The month with the least sunshine days is February (14.3 days).

Average UV index
West Harwich, MA

Average UV index - West Harwich, 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).

Average visibility
West Harwich, MA

Average visibility - West Harwich, 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).

West Harwich, Massachusetts, USA

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