Climate and monthly weather forecast
Lewiston, ME

Weather in January

January, the same as December, in Lewiston, Maine, is another subzero cold winter month, with an average temperature ranging between min 13.3°F (-10.4°C) and max 27°F (-2.8°C). With an average high-temperature of 27°F (-2.8°C) and an average low-temperature of 13.3°F (-10.4°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Lewiston, Maine, with an average temperature ranging between max 29.1°F (-1.6°C) and min 14.4°F (-9.8°C). In February, the average high-temperature is practically the same as in January - a still freezing cold 29.1°F (-1.6°C). Weather in February »

Weather in March

March, the first month of the spring in Lewiston, is a wintry month, with temperature in the range of an average low of 22.5°F (-5.3°C) and an average high of 37.4°F (3°C). In March, the average high-temperature slightly increases from a subzero cold 29.1°F (-1.6°C) in February to a cold 37.4°F (3°C). Weather in March »

Weather in April

April is a fresh spring month in Lewiston, Maine, with temperature in the range of an average low of 33.6°F (0.9°C) and an average high of 50.2°F (10.1°C). In Lewiston, the average high-temperature in April rises from a cold 37.4°F (3°C) in March to a cool 50.2°F (10.1°C). Weather in April »

Weather in May

May, the last month of the spring in Lewiston, is a comfortable month, with temperature in the range of an average low of 44.1°F (6.7°C) and an average high of 63.1°F (17.3°C). In Lewiston, the average high-temperature in May rises from a cool 50.2°F (10.1°C) in April to a comfortable 63.1°F (17.3°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Lewiston, Maine, with an average temperature ranging between max 70.5°F (21.4°C) and min 51.3°F (10.7°C). In Lewiston, the average high-temperature in June slightly increases from an enjoyable 63.1°F (17.3°C) in May to an agreeable 70.5°F (21.4°C). Weather in June »

Weather in July

July in Lewiston, Maine, is a warm summer month, with temperature in the range of an average high of 77.5°F (25.3°C) and an average low of 57.7°F (14.3°C). July is the warmest month, with an average high-temperature of 77.5°F (25.3°C) and an average low-temperature of 57.7°F (14.3°C). Weather in July »

Weather in August

August, the last month of the summer in Lewiston, is another warm month, with an average temperature varying between 76.8°F (24.9°C) and 56.5°F (13.6°C). In August, the average high-temperature is almost the same as in July - a still moderately hot 76.8°F (24.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Lewiston, Maine, with an average temperature ranging between min 50.2°F (10.1°C) and max 70°F (21.1°C). In September, the average high-temperature slightly decreases from a warm 76.8°F (24.9°C) in August to a pleasant 70°F (21.1°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Lewiston, Maine, with an average temperature varying between 56.5°F (13.6°C) and 41.9°F (5.5°C). In Lewiston, the average high-temperature in October drops from an agreeable 70°F (21.1°C) in September to a moderate 56.5°F (13.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Lewiston, Maine, with an average temperature ranging between min 31.1°F (-0.5°C) and max 43.9°F (6.6°C). In Lewiston, Maine, the average high-temperature in November decreases from a mild 56.5°F (13.6°C) in October to a frosty 43.9°F (6.6°C). Weather in November »

Weather in December

December, the first month of the winter in Lewiston, is also a wintry month, with an average temperature ranging between min 22.1°F (-5.5°C) and max 32.7°F (0.4°C). In December, the average high-temperature decreases from a chilly 43.9°F (6.6°C) in November to a wintry 32.7°F (0.4°C). Weather in December »
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FAQ

What is the coldest month in Lewiston?

The coldest month in Lewiston is January, with an average high-temperature of 27°F (-2.8°C) and an average low-temperature of 13.3°F (-10.4°C).

How much does it rain in Lewiston?

In Lewiston, Maine, during the entire year, the rain falls for 103.5 days and collects up to 14.96" (380mm) of precipitation.

When does it snow in Lewiston?

Months with snowfall in Lewiston are January through May, October through December.

How much does it snow in Lewiston?

Throughout the year, in Lewiston, Maine, there are 36.8 snowfall days, and 18.31" (465mm) of snow is accumulated.

What are the months with the lowest UV index in Lewiston?

The months with the lowest UV index in Lewiston are January through March, October through December, with an average maximum UV index of 2.

What is the most humid month in Lewiston?

February is the most humid month, with an average relative humidity of 84%.

What is the snowiest month in Lewiston?

February is the month with the most snowfall in Lewiston, Maine. Snow falls for 8.1 days and accumulates 4.72" (120mm) of snow.

What is the month with the least sunshine in Lewiston?

With an average of 4.6h of sunshine, February has the least sunshine of the year.

When is Daylight Saving Time (DST) in Lewiston?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Lewiston, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from EDT to EST.

When it does not snow in Lewiston?

June through September are months without snowfall in Lewiston, Maine.

When are the longest days in Lewiston?

The month with the longest days is June, with an average of 15h and 26min of daylight.

What is the warmest month in Lewiston?

With an average high-temperature of 77.5°F (25.3°C) and an average low-temperature of 57.7°F (14.3°C), July is the warmest month in Lewiston.

When is the highest UV index in Lewiston?

July is the month with the highest UV index in Lewiston, Maine, with an average maximum UV index of 6.

What month has the most sunshine in Lewiston?

With an average of 10.1h of sunshine, August has the most sunshine of the year in Lewiston, Maine.

What is the driest month in Lewiston?

The month with the least rainfall is September, when the rain falls for 7.4 days and typically collects 0.67" (17mm) of precipitation.

What is the wettest month in Lewiston?

October is the month with the most rainfall in Lewiston. Rain falls for 9.3 days and accumulates 1.69" (43mm) of precipitation.

What is the least humid month in Lewiston?

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

What is the month with the shortest days in Lewiston?

December has the shortest days of the year in Lewiston, with an average of 8h and 57min of daylight.

Average temperature
Lewiston, ME

Average temperature - Lewiston, ME

The warmest month (with the highest average high temperature) is July (25.3°C).
The month with the lowest average high temperature is January (-2.8°C).

The month with the highest average low temperature is July (14.3°C).
The coldest month (with the lowest average low temperature) is January (-10.4°C).

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Average pressure
Lewiston, ME

Average pressure - Lewiston, ME

The month with the highest atmospheric pressure is November (1017.5mbar).
The month with the lowest atmospheric pressure is June (1012.8mbar).

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Average wind speed
Lewiston, ME

Average wind speed - Lewiston, ME

The windiest month (with the highest average wind speed) is March (12.1km/h).
The calmest month (with the lowest average wind speed) is August (7.9km/h).

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Average rainfall
Lewiston, ME

Average rainfall - Lewiston, ME

The wettest month (with the highest rainfall) is October (43mm).
The driest month (with the least rainfall) is September (17mm).

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Average rainfall days
Lewiston, ME

Average rainfall days - Lewiston, ME

The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is February (4 days).

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Average snowfall
Lewiston, ME

Average snowfall - Lewiston, ME

The month with the highest snowfall is February (120mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days
Lewiston, ME

Average snowfall days - Lewiston, ME

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Lewiston, ME

Average daylight / Average sunshine - Lewiston, ME

The month with the longest days is June (Average daylight: 15h and 26min).
The month with the shortest days is December (Average daylight: 8h and 57min).

The month with the most sunshine is August (Average sunshine: 10.1h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days
Lewiston, ME

Average sunshine days - Lewiston, ME

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (16.2 days).

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Average UV index
Lewiston, ME

Average UV index - Lewiston, ME

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average visibility
Lewiston, ME

Average visibility - Lewiston, ME

The months with the highest visibility are January, November and December (9km).
The months with the lowest visibility are February, March, April, May, June, July, August, September and October (8km).

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