Climate and monthly weather forecast
Napoleon, MI

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Weather in January

January, like December, is another subzero cold winter month in Napoleon, Michigan, with temperature in the range of an average low of 17.1°F (-8.3°C) and an average high of 27.9°F (-2.3°C). Temperature readings reach their annual highs in January, averaging 27.9°F (-2.3°C) and a minimum average of 17.1°F (-8.3°C). Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Napoleon, Michigan, with an average temperature ranging between max 31.3°F (-0.4°C) and min 18.5°F (-7.5°C). Napoleon's February showcases an average high-temperature of a still subzero cold 31.3°F (-0.4°C), hardly distinct from January's 27.9°F (-2.3°C). Weather in February »

Weather in March

March, the first month of the spring in Napoleon, is a chilly month, with an average temperature ranging between max 42.8°F (6°C) and min 28°F (-2.2°C). The beginning of March marks a shift in the average high-temperature, moving from February's freezing cold 31.3°F (-0.4°C) to a frosty 42.8°F (6°C). Weather in March »

Weather in April

April is a cool spring month in Napoleon, Michigan, with an average temperature varying between 37.9°F (3.3°C) and 54.1°F (12.3°C). Napoleon experiences a temperature shift with the start of April, with average high-temperatures moving from a frosty 42.8°F (6°C) in March to a cool 54.1°F (12.3°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Napoleon, Michigan, with an average temperature varying between 49.6°F (9.8°C) and 66.7°F (19.3°C). With the onset of May, Napoleon sees a temperature rise, with the average high-temperature moving from April's fresh 54.1°F (12.3°C) to a refreshing 66.7°F (19.3°C). Weather in May »

Weather in June

June, the first month of the summer in Napoleon, is a warm month, with an average temperature varying between 74.8°F (23.8°C) and 57.6°F (14.2°C). Napoleon, Michigan, in June denotes a subtle temperature transition, adjusting from an average high of a refreshing 66.7°F (19.3°C) in May to a moderately hot 74.8°F (23.8°C). Weather in June »

Weather in July

July, like June, in Napoleon, Michigan, is another warm summer month, with an average temperature fluctuating between 79.2°F (26.2°C) and 61.3°F (16.3°C). Napoleon's July weather reaches an average high of 79.2°F (26.2°C) and an average low of 61.3°F (16.3°C), making it the warmest month. Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Napoleon, Michigan, with an average temperature fluctuating between 77.5°F (25.3°C) and 59.7°F (15.4°C). August brings a marginal elevation to a still warm 77.5°F (25.3°C) from July's 79.2°F (26.2°C) in Napoleon's average high-temperatures. Weather in August »

Weather in September

September, the first month of the autumn in Napoleon, is also an agreeable month, with temperature in the range of an average high of 71.6°F (22°C) and an average low of 53.8°F (12.1°C). With the commencement of September, Napoleon records a moderate temperature decline, with the average high easing from August's warm 77.5°F (25.3°C) to a pleasant 71.6°F (22°C). Weather in September »

Weather in October

October, the same as September, in Napoleon, Michigan, is another mild autumn month, with an average temperature ranging between min 43.7°F (6.5°C) and max 58.5°F (14.7°C). October comes with a drop in the average high-temperature, falling from September's pleasant 71.6°F (22°C) to a moderate 58.5°F (14.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Napoleon, Michigan, with an average temperature fluctuating between 45.3°F (7.4°C) and 32.7°F (0.4°C). Arrival of November comes with a reduction in the average high-temperature, falling from a refreshing 58.5°F (14.7°C) in October to a chilly 45.3°F (7.4°C). Weather in November »

Weather in December

December, the first month of the winter in Napoleon, is also an icy month, with an average temperature ranging between min 25.2°F (-3.8°C) and max 34.2°F (1.2°C). Transition from November to December is accompanied by a temperature drop, with average high-temperatures decreasing from a chilly 45.3°F (7.4°C) to a wintry 34.2°F (1.2°C). Weather in December »
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Frequently asked questions

What is the coldest time of year in Napoleon?

Temperature records mark January as the coldest month, with highs averaging 27.9°F (-2.3°C) and lows at 17.1°F (-8.3°C).

What are the most humid months in Napoleon?

The months with the highest humidity in Napoleon, Michigan, are January and February, with an average relative humidity of 87%.

How many days does it rain in Napoleon?

In Napoleon, during the entire year, the rain falls for 144.6 days and collects up to 20.2" (513mm) of precipitation.

When does it snow in Napoleon?

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

How many days does it snow in Napoleon?

In Napoleon, during the entire year, snow falls for 51.4 days and aggregates up to 13.11" (333mm) of snow.

What is the month with the least sunshine in Napoleon?

January has the least sunshine of the year, with an average of 2.9h of sunshine.

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

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

What is the snowiest month in Napoleon?

The month with the most snowfall in Napoleon is February, when snow falls for 11.6 days and typically aggregates up to 3.66" (93mm) of snow.

When is Daylight Saving Time (DST) in Napoleon?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Napoleon, 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 least humid month in Napoleon?

With an average relative humidity of 77%, April is the least humid month in Napoleon.

What is the rainiest month in Napoleon?

The month with the most rainfall in Napoleon is May, when the rain falls for 18.1 days and typically aggregates up to 2.83" (72mm) of precipitation.

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

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

When it does not snow in Napoleon?

June through September are months without snowfall in Napoleon.

When are the longest days in Napoleon?

June has the longest days of the year in Napoleon, Michigan, with an average of 15h and 12min of daylight.

What is the hottest time of year in Napoleon?

In Napoleon, Michigan, the average temperatures in July are the highest, with a peak at 79.2°F (26.2°C) and a low of 61.3°F (16.3°C).

What month has the most sunshine in Napoleon?

With an average of 10.1h of sunshine, July has the most sunshine of the year in Napoleon, Michigan.

What is the driest month in Napoleon?

The month with the least rainfall in Napoleon is December, when the rain falls for 6.5 days and typically collects 0.87" (22mm) of precipitation.

What is the month with the shortest days in Napoleon?

The month with the shortest days is December, with an average of 9h and 12min of daylight.

Average temperature
Napoleon, MI

Average temperature - Napoleon, MI

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (27.9°F).

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

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Average pressure
Napoleon, MI

Average pressure - Napoleon, MI

The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed
Napoleon, MI

Average wind speed - Napoleon, MI

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).

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Average humidity
Napoleon, MI

Average humidity - Napoleon, MI

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (77%).

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Average rainfall
Napoleon, MI

Average rainfall - Napoleon, MI

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is December (0.87").

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Average rainfall days
Napoleon, MI

Average rainfall days - Napoleon, MI

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (4.8 days).

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Average snowfall
Napoleon, MI

Average snowfall - Napoleon, MI

The month with the highest snowfall is February (3.66").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Napoleon, MI

Average snowfall days - Napoleon, MI

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Napoleon, MI

Average daylight / Average sunshine - Napoleon, MI

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

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Average sunshine days
Napoleon, MI

Average sunshine days - Napoleon, MI

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (9.9 days).

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Average UV index
Napoleon, MI

Average UV index - Napoleon, MI

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

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Average visibility
Napoleon, MI

Average visibility - Napoleon, MI

The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).

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Napoleon, Michigan, USA

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