Climate and monthly weather forecast
West Dennis, MA

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Weather in January

January, the same as December, is an icy winter month in West Dennis, Massachusetts, with an average temperature ranging between max 38.5°F (3.6°C) and min 30.6°F (-0.8°C). During the coldest month, January, temperatures average 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 another cold month in West Dennis, Massachusetts, with an average temperature fluctuating between 31.1°F (-0.5°C) and 38.8°F (3.8°C). February ushers in an average high-temperature of a still cold 38.8°F (3.8°C), aligning closely with the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is still a cold month in West Dennis, Massachusetts, with an average temperature fluctuating between 35.6°F (2°C) and 41.4°F (5.2°C). In the transition from February to March, West Dennis reports an average high-temperature of a still cold 41.4°F (5.2°C), indicating a close resemblance to the prior month. Weather in March »

Weather in April

April in West Dennis, Massachusetts, is a chilly spring month, with temperature in the range of an average low of 42.4°F (5.8°C) and an average high of 47.1°F (8.4°C). The shift from March to April sees a slight increase in the average high-temperature, transitioning from a wintry 41.4°F (5.2°C) to a chilly 47.1°F (8.4°C). Weather in April »

Weather in May

The last month of the spring, May, is a fresh month in West Dennis, Massachusetts, with an average temperature varying between 51.3°F (10.7°C) and 55°F (12.8°C). West Dennis in May experiences a slight uptick in the average high-temperature, 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

The first month of the summer, June, is a refreshing month in West Dennis, Massachusetts, with an average temperature ranging between min 59.4°F (15.2°C) and max 63.5°F (17.5°C). June brings a slight increase in the average high-temperature, progressing from a fresh 55°F (12.8°C) in May to a refreshing 63.5°F (17.5°C). Weather in June »

Weather in July

July is a pleasant summer month in West Dennis, Massachusetts, with an average temperature varying between 71.6°F (22°C) and 67.6°F (19.8°C). The coming of July brings a minor shift in West Dennis's weather, with average high-temperatures adjusting from June's comfortable 63.5°F (17.5°C) to an agreeable 71.6°F (22°C). Weather in July »

Weather in August

The last month of the summer, August, is also an agreeable month in West Dennis, Massachusetts, with an average temperature ranging between max 72.1°F (22.3°C) and min 68.5°F (20.3°C). August temperatures tend to peak at an average high of 72.1°F (22.3°C) and dip to a low of 68.5°F (20.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an enjoyable month in West Dennis, Massachusetts, with temperature in the range of an average high of 67.1°F (19.5°C) and an average low of 63°F (17.2°C). West Dennis ushers in September with an average high-temperature of a comfortable 67.1°F (19.5°C), showing a close resemblance to the previous month. Weather in September »

Weather in October

October, like September, is another mild autumn month in West Dennis, Massachusetts, with temperature in the range of an average high of 59.9°F (15.5°C) and an average low of 54.7°F (12.6°C). Transitioning from September to October involves a subtle drop in average high-temperatures, descending from an enjoyable 67.1°F (19.5°C) to a mild 59.9°F (15.5°C). Weather in October »

Weather in November

November, the last month of the autumn in West Dennis, is another cool month, with an average temperature ranging between max 51.3°F (10.7°C) and min 45.1°F (7.3°C). The arrival of November corresponds with a light shift in temperature, down from a refreshing 59.9°F (15.5°C) in October to a fresh 51.3°F (10.7°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in West Dennis, Massachusetts, with an average temperature ranging between min 36.9°F (2.7°C) and max 43.7°F (6.5°C). The commencement of December indicates a gentle shift in the average high-temperature, receding from November's cool 51.3°F (10.7°C) to a chilly 43.7°F (6.5°C). Weather in December »

Frequently asked questions

What part of the year is the coldest?

January proves to be the coldest month, recording an average maximum temperature of 38.5°F (3.6°C) and a minimum temperature of 30.6°F (-0.8°C).

How much does it rain?

In West Dennis, during the entire year, the rain falls for 129 days and collects up to 14.21" (361mm) of precipitation.

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

What are the months with the lowest UV index?

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

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.

What is the month with the coldest ocean?

The month with the coldest seawater is March, with an average ocean temperature of 39°F (3.9°C).

When is Daylight Saving Time (DST) in West Dennis?

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 Dennis, snow does not fall in May through November.

What are the most humid months?

The months with the highest humidity in West Dennis are June and July, with an average relative humidity of 84%.

When are the longest days?

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

When is the highest UV index?

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

What time of the year is the hottest?

The highest temperatures are recorded in August, with averages reaching a high of 72.1°F (22.3°C) and a low of 68.5°F (20.3°C).

What is the driest month in West Dennis?

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 is the month with the warmest ocean?

The month with the warmest seawater is August, with an average ocean temperature of 67.5°F (19.7°C).

What month has the most sunshine?

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

What is the rainiest month?

The month with the most rainfall is October, when the rain falls for 11.6 days and typically aggregates up to 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 Dennis, MA

Average temperature - West Dennis, 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 Dennis, MA

Average pressure - West Dennis, 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 Dennis, MA

Average wind speed - West Dennis, 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 Dennis, MA

Average humidity - West Dennis, 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 Dennis, MA

Average rainfall - West Dennis, 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 Dennis, MA

Average rainfall days - West Dennis, 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 Dennis, MA

Average snowfall - West Dennis, 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 Dennis, MA

Average snowfall days - West Dennis, 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 sea temperature
West Dennis, MA

Average sea temperature - West Dennis, MA

The best month for swimming (with the highest average sea temperature) is August (67.5°F).
The coldest month (with the lowest average sea temperature) is March (39°F).

Average daylight / Average sunshine
West Dennis, MA

Average daylight / Average sunshine - West Dennis, 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 Dennis, MA

Average sunshine days - West Dennis, 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 Dennis, MA

Average UV index - West Dennis, 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 Dennis, MA

Average visibility - West Dennis, 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 Dennis, Massachusetts, USA

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