Climate and monthly weather forecast
Union, ME

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Weather in January

January, the same as December, in Union, Maine, is another subzero cold winter month, with an average temperature varying between 29.8°F (-1.2°C) and 19.9°F (-6.7°C). With an average high-temperature of 29.8°F (-1.2°C) and an average low-temperature of 19.9°F (-6.7°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Union, Maine, with an average temperature fluctuating between 20.7°F (-6.3°C) and 31.3°F (-0.4°C). The arrival of February is marked by an average high-temperature of a still freezing cold 31.3°F (-0.4°C), bearing a close resemblance to January. Weather in February »

Weather in March

March, the first month of the spring in Union, is a wintry month, with an average temperature fluctuating between 27°F (-2.8°C) and 37.2°F (2.9°C). March signifies a subtle uplift in the average high-temperature, adjusting from a subzero cold 31.3°F (-0.4°C) in February to an icy 37.2°F (2.9°C). Weather in March »

Weather in April

April is a frosty spring month in Union, Maine, with an average temperature varying between 36.7°F (2.6°C) and 46.9°F (8.3°C). In April, the average high-temperature increases from a cold 37.2°F (2.9°C) in March to a chilly 46.9°F (8.3°C). Weather in April »

Weather in May

The last month of the spring, May, is a refreshing month in Union, Maine, with an average temperature varying between 45.1°F (7.3°C) and 56.1°F (13.4°C). The arrival of May signals an increase in the average high-temperature, moving from a frosty 46.9°F (8.3°C) in April to a moderate 56.1°F (13.4°C). Weather in May »

Weather in June

The first month of the summer, June, is an enjoyable month in Union, Maine, with temperature in the range of an average low of 52.7°F (11.5°C) and an average high of 63.7°F (17.6°C). June signals a minor shift in the average high-temperature, moving from May's mild 56.1°F (13.4°C) to a comfortable 63.7°F (17.6°C). Weather in June »

Weather in July

July in Union, Maine, is a pleasant summer month, with an average temperature ranging between max 70.3°F (21.3°C) and min 59.4°F (15.2°C). Union observes a slight ascent in average high-temperatures during July, adjusting from an enjoyable 63.7°F (17.6°C) in June to an agreeable 70.3°F (21.3°C). Weather in July »

Weather in August

August, the last month of the summer in Union, is also an agreeable month, with an average temperature fluctuating between 70.7°F (21.5°C) and 59.4°F (15.2°C). Union's temperature records reveal August as the warmest month, marked by average highs of 70.7°F (21.5°C) and lows of 59.4°F (15.2°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a refreshing month in Union, Maine, with an average temperature varying between 64.9°F (18.3°C) and 54°F (12.2°C). September signals a slight drop in average high-temperature, sliding from August's pleasant 70.7°F (21.5°C) to a refreshing 64.9°F (18.3°C). Weather in September »

Weather in October

October, the same as September, in Union, Maine, is a moderate autumn month, with an average temperature varying between 45.9°F (7.7°C) and 55.4°F (13°C). The move into October indicates a reduction in the average high-temperature, down from September's refreshing 64.9°F (18.3°C) to a mild 55.4°F (13°C). Weather in October »

Weather in November

November, the last month of the autumn in Union, is another chilly month, with temperature in the range of an average low of 35.8°F (2.1°C) and an average high of 44.8°F (7.1°C). The transition into November indicates a reduction in the average high-temperature, down to a chilly 44.8°F (7.1°C) from October's refreshing 55.4°F (13°C). Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in Union, Maine, with an average temperature fluctuating between 26.6°F (-3°C) and 35.8°F (2.1°C). The arrival of December signals a shift in temperature, down from a frosty 44.8°F (7.1°C) in November to a wintry 35.8°F (2.1°C). Weather in December »
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Frequently asked questions

What is the coldest time of year in Union?

The month of January sees the average lowest temperatures in Union, reaching 29.8°F (-1.2°C) at the peak and 19.9°F (-6.7°C) at the low.

How much does it rain in Union?

Throughout the year, in Union, there are 122.8 rainfall days, and 13.43" (341mm) of precipitation is accumulated.

When does it snow in Union?

January through April, November and December are months with snowfall in Union, Maine.

When does it snow the most in Union?

The month with the most snowfall is January, when snow falls for 8 days and typically aggregates up to 1.69" (43mm) of snow.

How many days does it snow in Union?

Throughout the year, in Union, there are 32.6 snowfall days, and 7.05" (179mm) of snow is accumulated.

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

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

When is Daylight Saving Time (DST) in Union?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Union, 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.

What is the wettest month in Union?

The wettest months are April, November and December, with an average 1.42" (36mm) of rainfall.

When it does not snow in Union?

In Union, Maine, snow does not fall in May through October.

What is the most humid month in Union?

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

When are the longest days in Union?

With an average of 15h and 30min of daylight, June has the longest days of the year in Union, Maine.

What are the months with the highest UV index in Union?

The months with the highest UV index are June through August, with an average maximum UV index of 5.

What part of the year is the hottest in Union?

The warmest period in Union, Maine, is August, when temperatures fluctuate between an average high of 70.7°F (21.5°C) and a low of 59.4°F (15.2°C).

What month has the most sunshine in Union?

With an average of 10.5h of sunshine, August has the most sunshine of the year in Union.

What is the driest month in Union?

September is the month with the least rainfall in Union. Rain falls for 8.3 days and accumulates 0.75" (19mm) of precipitation.

What is the least humid month in Union?

The least humid month is November, with an average relative humidity of 76%.

What is the month with the shortest days in Union?

The month with the shortest days is December, with an average of 8h and 54min of daylight.

What is the month with the least sunshine in Union?

December has the least sunshine of the year, with an average of 4.6h of sunshine.

Average temperature
Union, ME

Average temperature - Union, ME

The warmest month (with the highest average high temperature) is August (70.7°F).
The month with the lowest average high temperature is January (29.8°F).

The months with the highest average low temperature are July and August (59.4°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

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Average pressure
Union, ME

Average pressure - Union, 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
Union, ME

Average wind speed - Union, ME

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).

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Average humidity
Union, ME

Average humidity - Union, ME

The months with the highest relative humidity are June and July (84%).
The month with the lowest relative humidity is November (76%).

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Average rainfall
Union, ME

Average rainfall - Union, ME

The wettest months (with the highest rainfall) are April, November and December (1.42").
The driest month (with the least rainfall) is September (0.75").

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Average rainfall days
Union, ME

Average rainfall days - Union, ME

The month with the highest number of rainy days is April (13.2 days).
The months with the least rainy days are January and February (6.8 days).

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Average snowfall
Union, ME

Average snowfall - Union, ME

The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Union, ME

Average snowfall days - Union, ME

The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Union, ME

Average daylight / Average sunshine - Union, ME

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

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 36min).

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Average sunshine days
Union, ME

Average sunshine days - Union, ME

The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is April (13.8 days).

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Average UV index
Union, ME

Average UV index - Union, 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
Union, ME

Average visibility - Union, 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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Union, Maine, USA

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