Climate and monthly weather forecast
South Orleans, MA

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Weather in January

January, the same as December, is a wintry winter month in South Orleans, Massachusetts, with an average temperature varying between 31.5°F (-0.3°C) and 38.8°F (3.8°C). January is the month when South Orleans sees the lowest average temperatures, with a high of 38.8°F (3.8°C) and a low of 31.5°F (-0.3°C). Weather in January »

Weather in February

February, the last month of the winter in South Orleans, is also an icy month, with an average temperature varying between 31.8°F (-0.1°C) and 39°F (3.9°C). The arrival of February sees a recorded average high-temperature of a still icy 39°F (3.9°C), showing little divergence from the previous month's conditions. Weather in February »

Weather in March

March, the first month of the spring in South Orleans, is also a wintry month, with temperature in the range of an average low of 35.6°F (2°C) and an average high of 41.2°F (5.1°C). March's presence records an average high-temperature of a still icy 41.2°F (5.1°C), closely mirroring February's climate. Weather in March »

Weather in April

April is a frosty spring month in South Orleans, Massachusetts, with an average temperature fluctuating between 46.9°F (8.3°C) and 42.4°F (5.8°C). With the onset of April, the average high-temperature subtly transitions from a cold 41.2°F (5.1°C) in March to a frosty 46.9°F (8.3°C). Weather in April »

Weather in May

May, the last month of the spring in South Orleans, is a cool month, with an average temperature ranging between min 50.4°F (10.2°C) and max 54.5°F (12.5°C). The shift into May is marked by a modest rise in the average high-temperature, moving from April's chilly 46.9°F (8.3°C) to a cool 54.5°F (12.5°C). Weather in May »

Weather in June

June, the first month of the summer in South Orleans, is an enjoyable month, with temperature in the range of an average high of 62.8°F (17.1°C) and an average low of 58.6°F (14.8°C). June's arrival signals a modest temperature shift, moving from a cool 54.5°F (12.5°C) in May to a comfortable 62.8°F (17.1°C). Weather in June »

Weather in July

July in South Orleans, Massachusetts, is a pleasant summer month, with an average temperature ranging between max 70.3°F (21.3°C) and min 66.9°F (19.4°C). July's arrival coincides with a marginal rise in the average high-temperature, moving from June's comfortable 62.8°F (17.1°C) to an agreeable 70.3°F (21.3°C). Weather in July »

Weather in August

August, the last month of the summer in South Orleans, is another pleasant month, with an average temperature varying between 67.8°F (19.9°C) and 71.4°F (21.9°C). South Orleans registers the highest average temperatures during the month of August, with peaks of 71.4°F (21.9°C) and lows of 67.8°F (19.9°C). Weather in August »

Weather in September

September, the first month of the autumn in South Orleans, is still a comfortable month, with an average temperature ranging between min 62.4°F (16.9°C) and max 66.6°F (19.2°C). South Orleans observes an average high-temperature of a comfortable 66.6°F (19.2°C) in September, barely different from 71.4°F (21.9°C) in August. Weather in September »

Weather in October

October, the same as September, in South Orleans, Massachusetts, is another mild autumn month, with an average temperature varying between 54.7°F (12.6°C) and 59.4°F (15.2°C). October's onset brings a negligible change in high-temperatures, falling from a comfortable 66.6°F (19.2°C) in September to a mild 59.4°F (15.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in South Orleans, Massachusetts, with an average temperature fluctuating between 45.5°F (7.5°C) and 51.3°F (10.7°C). A moderate decline in average high-temperatures is noted in November, moving from a moderate 59.4°F (15.2°C) in October to a cool 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 South Orleans, Massachusetts, with an average temperature ranging between min 37.6°F (3.1°C) and max 44.1°F (6.7°C). The onset of December aligns with a soft reduction in the average high-temperature, gently falling from a cool 51.3°F (10.7°C) in November to a chilly 44.1°F (6.7°C). Weather in December »

Frequently asked questions

What are the coldest months?

January brings the lowest temperatures, with an average high of 38.8°F (3.8°C) and an average low of 31.5°F (-0.3°C).

How many days does it rain?

Throughout the year, there are 78.2 rainfall days, and 5.75" (146mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through March, November and December.

How much does it snow?

Throughout the year, there are 13.2 snowfall days, and 0.94" (24mm) of snow is accumulated.

When is 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.

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 South Orleans, snow does not fall in April through October.

When are the longest days?

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

What is the most humid month?

With an average relative humidity of 85%, July is the most humid month.

What is the driest month?

The months with the least rainfall are July and August Rain falls for 7.5 days and accumulates 0.28" (7mm) of rain.

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 is the hottest time of year?

In South Orleans, August is identified by the average highest temperatures, reaching a peak of 71.4°F (21.9°C) and a low of 67.8°F (19.9°C).

What month has the most sunshine?

The month with the most sunshine is August, with an average of 10.7h of sunshine.

What is the wettest month?

October is the month with the most rainfall. Rain falls for 7.2 days and accumulates 0.87" (22mm) of precipitation.

What is the least humid month?

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

What is the snowiest month?

The month with the most snowfall is December, when snow falls for 2.4 days and typically aggregates up to 0.31" (8mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 12min of daylight.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 4.3h of sunshine.

Average temperature
South Orleans, MA

Average temperature - South Orleans, MA

The warmest month (with the highest average high temperature) is August (71.4°F).
The month with the lowest average high temperature is January (38.8°F).

The month with the highest average low temperature is August (67.8°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

Average pressure
South Orleans, MA

Average pressure - South Orleans, 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
South Orleans, MA

Average wind speed - South Orleans, MA

The windiest month (with the highest average wind speed) is January (18.3mph).
The calmest month (with the lowest average wind speed) is August (11.4mph).

Average humidity
South Orleans, MA

Average humidity - South Orleans, MA

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (74%).

Average rainfall
South Orleans, MA

Average rainfall - South Orleans, MA

The wettest month (with the highest rainfall) is October (0.87").
The driest months (with the least rainfall) are July and August (0.28").

Average rainfall days
South Orleans, MA

Average rainfall days - South Orleans, MA

The month with the highest number of rainy days is April (8.2 days).
The month with the least rainy days is February (4.8 days).

Average snowfall
South Orleans, MA

Average snowfall - South Orleans, MA

The month with the highest snowfall is December (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days
South Orleans, MA

Average snowfall days - South Orleans, MA

The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
South Orleans, MA

Average daylight / Average sunshine - South Orleans, 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 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).

Average sunshine days
South Orleans, MA

Average sunshine days - South Orleans, MA

The month with the most sunshine days is September (23.4 days).
The month with the least sunshine days is February (19.8 days).

Average UV index
South Orleans, MA

Average UV index - South Orleans, 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
South Orleans, MA

Average visibility - South Orleans, 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).

South Orleans, Massachusetts, USA

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