Climate and monthly weather forecast
Sinclair, ME

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Weather in January

January, the same as December, in Sinclair, Maine, is another subzero cold winter month, with an average temperature ranging between min 2.8°F (-16.2°C) and max 18°F (-7.8°C). In Sinclair, January records the lowest average temperatures, peaking at 18°F (-7.8°C) and reaching a low of 2.8°F (-16.2°C). Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Sinclair, Maine, with an average temperature varying between 20.3°F (-6.5°C) and 3.6°F (-15.8°C). February's onset sees an average high-temperature of a still freezing cold 20.3°F (-6.5°C), exhibiting a slight fluctuation from the previous month. Weather in February »

Weather in March

The first month of the spring, March, is also a subzero cold month in Sinclair, Maine, with an average temperature ranging between max 27.7°F (-2.4°C) and min 11.7°F (-11.3°C). The shift from February to March introduces a subtle increase in the average high-temperature, moving from 20.3°F (-6.5°C) to a still subzero cold 27.7°F (-2.4°C). Weather in March »

Weather in April

April in Sinclair, Maine, is an icy spring month, with an average temperature fluctuating between 40.8°F (4.9°C) and 26.1°F (-3.3°C). In April, the average high-temperature increases from a subzero cold 27.7°F (-2.4°C) in March to a cold 40.8°F (4.9°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderate month in Sinclair, Maine, with an average temperature varying between 58.8°F (14.9°C) and 39.6°F (4.2°C). May's arrival is marked by a notable elevation in high-temperatures, rising from a cold 40.8°F (4.9°C) in April to a moderate 58.8°F (14.9°C). Weather in May »

Weather in June

June, the first month of the summer in Sinclair, is a refreshing month, with an average temperature fluctuating between 47.3°F (8.5°C) and 67.5°F (19.7°C). A slight uplift in the average high-temperature marks June, adjusting from May's mild 58.8°F (14.9°C) to a comfortable 67.5°F (19.7°C). Weather in June »

Weather in July

July is a warm summer month in Sinclair, Maine, with an average temperature ranging between min 53.6°F (12°C) and max 74.3°F (23.5°C). In Sinclair, Maine, the peak temperatures are generally noted in July, averaging a high of 74.3°F (23.5°C) and a low of 53.6°F (12°C). Weather in July »

Weather in August

August, the last month of the summer in Sinclair, is another pleasant month, with temperature in the range of an average high of 72.3°F (22.4°C) and an average low of 52.7°F (11.5°C). Sinclair marks the onset of August with an average high-temperature of a pleasant 72.3°F (22.4°C), subtly divergent from July's 74.3°F (23.5°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a refreshing month in Sinclair, Maine, with an average temperature ranging between max 63.5°F (17.5°C) and min 45.1°F (7.3°C). In September, the average high-temperature marginally decreases from a pleasant 72.3°F (22.4°C) in August to a refreshing 63.5°F (17.5°C). Weather in September »

Weather in October

October, like September, is a frosty autumn month in Sinclair, Maine, with an average temperature fluctuating between 36°F (2.2°C) and 49.5°F (9.7°C). October brings a decrease in the average high-temperature, shifting from a refreshing 63.5°F (17.5°C) in September to a chilly 49.5°F (9.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a wintry month in Sinclair, Maine, with an average temperature fluctuating between 25.2°F (-3.8°C) and 36.5°F (2.5°C). The onset of November results in a decrease in the average high-temperature, receding from a chilly 49.5°F (9.7°C) in October to a cold 36.5°F (2.5°C). Weather in November »

Weather in December

December, the first month of the winter in Sinclair, is also a subzero cold month, with an average temperature fluctuating between 12.2°F (-11°C) and 23.9°F (-4.5°C). With the onset of December, Sinclair's average high-temperature adjusts, receding from November's wintry 36.5°F (2.5°C) to a subzero cold 23.9°F (-4.5°C). Weather in December »
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

Sinclair notes the coldest temperatures in January, with a average high of 18°F (-7.8°C) and a low of 2.8°F (-16.2°C).

How many days does it rain?

In Sinclair, during the entire year, the rain falls for 140.8 days and collects up to 30.12" (765mm) of precipitation.

When does it snow?

January through May, October through December are months with snowfall in Sinclair.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 21.3 days and accumulates 14.92" (379mm) of snow.

How many days does it snow?

Throughout the year, there are 107.8 snowfall days, and 71.34" (1812mm) of snow is accumulated.

What is the month with the lowest UV index in Sinclair?

January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the driest month?

February is the month with the least rainfall. Rain falls for 4.3 days and accumulates 1.97" (50mm) of precipitation.

What is the month with the least sunshine?

With an average of 2.1h of sunshine, February has the least sunshine of the year.

What is the most humid month?

The most humid month is March, with an average relative humidity of 94%.

When is Daylight Saving Time (DST) in Sinclair?

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.

What is the wettest month?

April is the month with the most rainfall. Rain falls for 14 days and accumulates 2.95" (75mm) of precipitation.

What is the least humid month?

May is the least humid month, with an average relative humidity of 76%.

When it does not snow?

June through September are months without snowfall.

When are the longest days?

June has the longest days of the year, with an average of 15h and 54min of daylight.

What are the months with the highest UV index?

June and July, with an average maximum UV index of 5, are months with the highest UV index.

What month is the hottest?

July tends to be the warmest month, with temperatures averaging a daily high of 74.3°F (23.5°C) and a low of 53.6°F (12°C).

What month has the most sunshine in Sinclair?

The month with the most sunshine is August, with an average of 9.5h of sunshine.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 8h and 36min of daylight.

Average temperature
Sinclair, ME

Average temperature - Sinclair, ME

The warmest month (with the highest average high temperature) is July (74.3°F).
The month with the lowest average high temperature is January (18°F).

The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is January (2.8°F).

Average pressure
Sinclair, ME

Average pressure - Sinclair, ME

The months with the highest atmospheric pressure are March, September and November (30.01"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed
Sinclair, ME

Average wind speed - Sinclair, ME

The windiest months (with the highest average wind speed) are January and February (8.2mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average rainfall
Sinclair, ME

Average rainfall - Sinclair, ME

The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is February (1.97").

Average rainfall days
Sinclair, ME

Average rainfall days - Sinclair, ME

The month with the highest number of rainy days is July (17.1 days).
The months with the least rainy days are January and February (4.3 days).

Average snowfall
Sinclair, ME

Average snowfall - Sinclair, ME

The month with the highest snowfall is January (14.92").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Sinclair, ME

Average snowfall days - Sinclair, ME

The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Sinclair, ME

Average daylight / Average sunshine - Sinclair, ME

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).

The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 6min).

Average sunshine days
Sinclair, ME

Average sunshine days - Sinclair, ME

The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is April (7.9 days).

Average UV index
Sinclair, ME

Average UV index - Sinclair, ME

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).

Average visibility
Sinclair, ME

Average visibility - Sinclair, ME

The months with the highest visibility are May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March, April and December (4mi).

Sinclair, Maine, USA

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