Climate and monthly weather forecast
Grand Marais, MI

Weather in January

January, like December, is another subzero cold winter month in Grand Marais, Michigan, with an average temperature varying between 22.8°F (-5.1°C) and 13.8°F (-10.1°C). The coldest month is January, with an average high-temperature of 22.8°F (-5.1°C) and an average low-temperature of 13.8°F (-10.1°C). Weather in January »

Weather in February

February, the last month of the winter in Grand Marais, is another freezing cold month, with an average temperature ranging between min 13.6°F (-10.2°C) and max 23.2°F (-4.9°C). In February, the average high-temperature is practically the same as in January - a still subzero cold 23.2°F (-4.9°C). Weather in February »

Weather in March

The first month of the spring, March, is a wintry month in Grand Marais, Michigan, with an average temperature ranging between max 32.4°F (0.2°C) and min 21.6°F (-5.8°C). In Grand Marais, the average high-temperature in March increases from a subzero cold 23.2°F (-4.9°C) in February to a cold 32.4°F (0.2°C). Weather in March »

Weather in April

April is a frosty spring month in Grand Marais, Michigan, with an average temperature ranging between max 43.5°F (6.4°C) and min 30.9°F (-0.6°C). In Grand Marais, Michigan, the average high-temperature in April increases from a wintry 32.4°F (0.2°C) in March to a frosty 43.5°F (6.4°C). Weather in April »

Weather in May

May, the last month of the spring in Grand Marais, is a moderate month, with an average temperature varying between 57°F (13.9°C) and 41.2°F (5.1°C). In Grand Marais, the average high-temperature in May increases from a frosty 43.5°F (6.4°C) in April to a moderate 57°F (13.9°C). Weather in May »

Weather in June

The first month of the summer, June, is a comfortable month in Grand Marais, Michigan, with an average temperature fluctuating between 48.4°F (9.1°C) and 66°F (18.9°C). In June, the average high-temperature slightly increases from a mild 57°F (13.9°C) in May to an enjoyable 66°F (18.9°C). Weather in June »

Weather in July

July is an agreeable summer month in Grand Marais, Michigan, with temperature in the range of an average low of 55°F (12.8°C) and an average high of 72.1°F (22.3°C). July is the warmest month, with an average high-temperature of 72.1°F (22.3°C) and an average low-temperature of 55°F (12.8°C). Weather in July »

Weather in August

August, the last month of the summer in Grand Marais, is another pleasant month, with an average temperature fluctuating between 71.8°F (22.1°C) and 56.8°F (13.8°C). In Grand Marais, Michigan, the average high-temperature in August is relatively the same as in July - a still pleasant 71.8°F (22.1°C). Weather in August »

Weather in September

September, the first month of the autumn in Grand Marais, is also an enjoyable month, with an average temperature varying between 51.6°F (10.9°C) and 65.1°F (18.4°C). In Grand Marais, the average high-temperature in September slightly decreases from an agreeable 71.8°F (22.1°C) in August to a comfortable 65.1°F (18.4°C). Weather in September »

Weather in October

October, the same as September, is another fresh autumn month in Grand Marais, Michigan, with an average temperature varying between 42.3°F (5.7°C) and 51.1°F (10.6°C). In October, the average high-temperature decreases from an enjoyable 65.1°F (18.4°C) in September to a fresh 51.1°F (10.6°C). Weather in October »

Weather in November

November, the last month of the autumn in Grand Marais, is another cold month, with an average temperature varying between 39.2°F (4°C) and 31.3°F (-0.4°C). In Grand Marais, the average high-temperature in November decreases from a fresh 51.1°F (10.6°C) in October to a cold 39.2°F (4°C). Weather in November »

Weather in December

December, the first month of the winter in Grand Marais, is also a subzero cold month, with an average temperature ranging between max 28.8°F (-1.8°C) and min 21°F (-6.1°C). In December, the average high-temperature drops from a cold 39.2°F (4°C) in November to a freezing cold 28.8°F (-1.8°C). Weather in December »
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FAQ

What is the coldest month in Grand Marais?

January is the coldest month in Grand Marais, with an average high-temperature of 22.8°F (-5.1°C) and an average low-temperature of 13.8°F (-10.1°C).

What is the most humid month in Grand Marais?

The months with the highest humidity in Grand Marais are January and February, with an average relative humidity of 91%.

How much does it rain in Grand Marais?

Throughout the year, in Grand Marais, Michigan, there are 123.2 rainfall days, and 22.17" (563mm) of precipitation is accumulated.

When does it snow in Grand Marais?

Months with snowfall in Grand Marais, Michigan, are January through May, October through December.

When does it snow the most in Grand Marais?

January is the month with the most snowfall. Snow falls for 24.8 days and accumulates 10.08" (256mm) of snow.

How many days does it snow in Grand Marais?

Throughout the year, in Grand Marais, Michigan, there are 108.1 snowfall days, and 48.31" (1227mm) of snow is accumulated.

What is the month with the least sunshine in Grand Marais?

With an average of 1.6h of sunshine, January has the least sunshine of the year.

What is the month with the lowest UV index in Grand Marais?

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Grand Marais.

What is the driest month in Grand Marais?

March is the month with the least rainfall. Rain falls for 8.1 days and accumulates 1.5" (38mm) of precipitation.

What are the months with the coldest ocean in Grand Marais?

March and April, with an average ocean temperature of 35.6°F (2°C), are months with the coldest seawater.

When is Daylight Saving Time (DST) in Grand Marais?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Grand Marais, 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.

What is the least humid month in Grand Marais?

With an average relative humidity of 73%, May is the least humid month.

When it does not snow in Grand Marais?

June through September are months without snowfall in Grand Marais, Michigan.

When are the longest days in Grand Marais?

The month with the longest days in Grand Marais is June, with an average of 15h and 47min of daylight.

When is the highest UV index in Grand Marais?

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

What is the warmest month in Grand Marais?

With an average high-temperature of 72.1°F (22.3°C) and an average low-temperature of 55°F (12.8°C), July is the warmest month.

What month has the most sunshine in Grand Marais?

With an average of 9.9h of sunshine, July has the most sunshine of the year in Grand Marais.

What month is the ocean warmest in Grand Marais?

With an average ocean temperature of 59°F (15°C), August is the month with the warmest seawater in Grand Marais, Michigan.

What is the rainiest month in Grand Marais?

October is the month with the most rainfall in Grand Marais. Rain falls for 15.3 days and accumulates 2.8" (71mm) of precipitation.

What is the month with the shortest days in Grand Marais?

The month with the shortest days in Grand Marais, Michigan, is December, with an average of 8h and 38min of daylight.

Average temperature
Grand Marais, MI

Average temperature - Grand Marais, MI

The warmest month (with the highest average high temperature) is July (72.1°F).
The month with the lowest average high temperature is January (22.8°F).

The month with the highest average low temperature is August (56.8°F).
The coldest month (with the lowest average low temperature) is February (13.6°F).

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Average pressure
Grand Marais, MI

Average pressure - Grand Marais, MI

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed
Grand Marais, MI

Average wind speed - Grand Marais, MI

The windiest month (with the highest average wind speed) is November (10.1mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity
Grand Marais, MI

Average humidity - Grand Marais, MI

The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (73%).

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Average rainfall
Grand Marais, MI

Average rainfall - Grand Marais, MI

The wettest month (with the highest rainfall) is October (2.8").
The driest month (with the least rainfall) is March (1.5").

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Average rainfall days
Grand Marais, MI

Average rainfall days - Grand Marais, MI

The month with the highest number of rainy days is October (15.3 days).
The month with the least rainy days is February (3.1 days).

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Average snowfall
Grand Marais, MI

Average snowfall - Grand Marais, MI

The month with the highest snowfall is January (10.08").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Grand Marais, MI

Average snowfall days - Grand Marais, MI

The month with the highest number of snowfall days is January (24.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature
Grand Marais, MI

Average sea temperature - Grand Marais, MI

The best month for swimming (with the highest average sea temperature) is August (59°F).
The coldest months (with the lowest average sea temperature) are March and April (36°F).

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Average daylight / Average sunshine
Grand Marais, MI

Average daylight / Average sunshine - Grand Marais, MI

The month with the longest days is June (Average daylight: 15h and 47min).
The month with the shortest days is December (Average daylight: 8h and 38min).

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).

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Average sunshine days
Grand Marais, MI

Average sunshine days - Grand Marais, MI

The month with the most sunshine days is June (16.3 days).
The month with the least sunshine days is January (5.8 days).

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Average UV index
Grand Marais, MI

Average UV index - Grand Marais, MI

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, November and December (UV index 1).

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Average visibility
Grand Marais, MI

Average visibility - Grand Marais, MI

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).

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