Climate and monthly weather forecast
South Thomaston, ME

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Weather in January

January, the same as December, in South Thomaston, Maine, is another subzero cold winter month, with an average temperature fluctuating between 31.8°F (-0.1°C) and 22.1°F (-5.5°C). January is the coldest month, with an average high-temperature of 31.8°F (-0.1°C) and an average low-temperature of 22.1°F (-5.5°C). Weather in January »

Weather in February

February, the last month of the winter in South Thomaston, is an icy month, with an average temperature fluctuating between 32.7°F (0.4°C) and 23.2°F (-4.9°C). Transitioning from January to February, South Thomaston observes an average high-temperature of an icy 32.7°F (0.4°C), differing subtly from the previous month. Weather in February »

Weather in March

The first month of the spring, March, is also an icy month in South Thomaston, Maine, with an average temperature varying between 28.8°F (-1.8°C) and 37.6°F (3.1°C). The arrival of March sees a recorded average high-temperature of a still wintry 37.6°F (3.1°C), showing little divergence from the previous month's conditions. Weather in March »

Weather in April

April is a chilly spring month in South Thomaston, Maine, with temperature in the range of an average low of 37.8°F (3.2°C) and an average high of 45.9°F (7.7°C). As April sets, the average high-temperature shows a slight increase, moving up from a wintry 37.6°F (3.1°C) in March to a chilly 45.9°F (7.7°C). Weather in April »

Weather in May

The last month of the spring, May, is a fresh month in South Thomaston, Maine, with an average temperature fluctuating between 46.2°F (7.9°C) and 54.1°F (12.3°C). The onset of May brings a minor temperature shift, with the average high-temperature moving from a chilly 45.9°F (7.7°C) in April to a cool 54.1°F (12.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a comfortable month in South Thomaston, Maine, with an average temperature varying between 53.2°F (11.8°C) and 61.2°F (16.2°C). The shift into June brings a slight increase in the average high-temperature, moving from a cool 54.1°F (12.3°C) in May to an enjoyable 61.2°F (16.2°C). Weather in June »

Weather in July

July, the same as June, is another refreshing summer month in South Thomaston, Maine, with temperature in the range of an average low of 60.3°F (15.7°C) and an average high of 67.8°F (19.9°C). July brings a slight elevation in the average high-temperature, transitioning from June's refreshing 61.2°F (16.2°C) to a still enjoyable 67.8°F (19.9°C). Weather in July »

Weather in August

The last month of the summer, August, is a pleasant month in South Thomaston, Maine, with an average temperature ranging between min 60.6°F (15.9°C) and max 68.7°F (20.4°C). In South Thomaston, Maine, the month of August registers the highest temperatures, averaging 68.7°F (20.4°C) at the peak and 60.6°F (15.9°C) at the lowest. Weather in August »

Weather in September

The first month of the autumn, September, is still a comfortable month in South Thomaston, Maine, with an average temperature fluctuating between 55.6°F (13.1°C) and 63.3°F (17.4°C). September sees a slight reduction in average high-temperature, with a shift from an agreeable 68.7°F (20.4°C) in August to a refreshing 63.3°F (17.4°C). Weather in September »

Weather in October

October, the same as September, is a cool autumn month in South Thomaston, Maine, with an average temperature ranging between min 47.5°F (8.6°C) and max 55°F (12.8°C). The start of October involves a subtle temperature drop, shifting from a comfortable 63.3°F (17.4°C) in September to a cool 55°F (12.8°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in South Thomaston, Maine, with an average temperature fluctuating between 45.5°F (7.5°C) and 37.4°F (3°C). November shows a mild decline in the average high-temperature, falling from October's fresh 55°F (12.8°C) to a chilly 45.5°F (7.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in South Thomaston, Maine, with an average temperature ranging between min 28.4°F (-2°C) and max 37°F (2.8°C). The shift from November to December includes a minor decrease in the average high-temperature, lightly dropping from a chilly 45.5°F (7.5°C) to a cold 37°F (2.8°C). Weather in December »
Updated: Feb 12, 2024 | Published by: Weather U.S. | Resources

Frequently asked questions

What is the coldest time of year in South Thomaston?

January, characterized by an average high temperature of 31.8°F (-0.1°C) and a low temperature of 22.1°F (-5.5°C), is generally the coldest month in South Thomaston.

How many days does it rain in South Thomaston?

In South Thomaston, during the entire year, the rain falls for 144.8 days and collects up to 30.63" (778mm) of precipitation.

When does it snow in South Thomaston?

Months with snowfall in South Thomaston, Maine, are January through April, November and December.

When does it snow the most in South Thomaston?

The month with the most snowfall in South Thomaston, Maine, is January, when snow falls for 8.5 days and typically aggregates up to 2.83" (72mm) of snow.

How many days does it snow in South Thomaston?

Throughout the year, there are 33.1 snowfall days, and 12.36" (314mm) of snow is accumulated.

What are the months with the lowest UV index in South Thomaston?

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

What month is the ocean coldest in South Thomaston?

The month with the coldest seawater is March, with an average ocean temperature of 37.9°F (3.3°C).

When is Daylight Saving Time (DST) in South Thomaston?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in South Thomaston, Maine, 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 Thomaston?

May through October are months without snowfall in South Thomaston, Maine.

When are the longest days in South Thomaston?

With an average of 15h and 24min of daylight, June has the longest days of the year.

What is the month with the highest UV index in South Thomaston?

June through August, with an average maximum UV index of 5, are months with the highest UV index in South Thomaston, Maine.

What is the most humid month in South Thomaston?

July is the most humid month in South Thomaston, Maine, with an average relative humidity of 85%.

What part of the year is the hottest in South Thomaston?

August, on average, is the warmest month in South Thomaston, registering a high temperature of 68.7°F (20.4°C) and a low of 60.6°F (15.9°C).

When is the ocean warmest in South Thomaston?

The month with the warmest seawater is August, with an average ocean temperature of 60.4°F (15.8°C).

What month has the most sunshine in South Thomaston?

The month with the most sunshine in South Thomaston, Maine, is August, with an average of 10.5h of sunshine.

What is the driest month in South Thomaston?

September is the month with the least rainfall in South Thomaston, Maine. Rain falls for 10.4 days and accumulates 1.81" (46mm) of precipitation.

What is the least humid month in South Thomaston?

The least humid month is November, with an average relative humidity of 75%.

What is the wettest month in South Thomaston?

December is the month with the most rainfall. Rain falls for 11.3 days and accumulates 3.35" (85mm) of precipitation.

What is the month with the shortest days in South Thomaston?

The month with the shortest days in South Thomaston, Maine, is December, with an average of 9h and 0min of daylight.

What is the month with the least sunshine in South Thomaston?

With an average of 4.5h of sunshine, December has the least sunshine of the year in South Thomaston, Maine.

Average temperature
South Thomaston, ME

Average temperature - South Thomaston, ME

The warmest month (with the highest average high temperature) is August (68.7°F).
The month with the lowest average high temperature is January (31.8°F).

The month with the highest average low temperature is August (60.6°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).

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Average pressure
South Thomaston, ME

Average pressure - South Thomaston, ME

The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed
South Thomaston, ME

Average wind speed - South Thomaston, ME

The windiest month (with the highest average wind speed) is January (14.9mph).
The calmest months (with the lowest average wind speed) are July and August (8.2mph).

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Average humidity
South Thomaston, ME

Average humidity - South Thomaston, ME

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (75%).

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Average rainfall
South Thomaston, ME

Average rainfall - South Thomaston, ME

The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.81").

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Average rainfall days
South Thomaston, ME

Average rainfall days - South Thomaston, ME

The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is January (7.9 days).

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Average snowfall
South Thomaston, ME

Average snowfall - South Thomaston, ME

The month with the highest snowfall is January (2.83").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
South Thomaston, ME

Average snowfall days - South Thomaston, ME

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average sea temperature
South Thomaston, ME

Average sea temperature - South Thomaston, ME

The best month for swimming (with the highest average sea temperature) is August (60.4°F).
The coldest month (with the lowest average sea temperature) is March (37.8°F).

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Average daylight / Average sunshine
South Thomaston, ME

Average daylight / Average sunshine - South Thomaston, ME

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).

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Average sunshine days
South Thomaston, ME

Average sunshine days - South Thomaston, ME

The month with the most sunshine days is September (18 days).
The month with the least sunshine days is April (11.5 days).

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Average UV index
South Thomaston, ME

Average UV index - South Thomaston, ME

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average visibility
South Thomaston, ME

Average visibility - South Thomaston, ME

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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South Thomaston, Maine, USA

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