December weather forecast
Saint Ignace, MI

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Weather in December

December, the first month of the winter in Saint Ignace, is also a subzero cold month, with an average temperature ranging between min 23°F (-5°C) and max 30.2°F (-1°C).

Temperature

Start of December brings a shift in the average high-temperature, falling from November's icy 40.3°F (4.6°C) to a freezing cold 30.2°F (-1°C). Saint Ignace records a slight downturn in temperature to an average of 23°F (-5°C) during December nights.

Humidity

The average relative humidity in December is 85%.

Rainfall

In Saint Ignace, in December, during 9.2 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. Throughout the year, there are 131 rainfall days, and 21.22" (539mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Saint Ignace are January through May, October through December. In Saint Ignace, Michigan, during December, snow falls for 19.2 days and regularly aggregates up to 5.59" (142mm) of snow. In Saint Ignace, Michigan, during the entire year, snow falls for 93.6 days and aggregates up to 27.91" (709mm) of snow.

Ocean temperature

In Saint Ignace, the average seawater temperature in December is 40.3°F (4.6°C).
Note: While participating in swimming, this is a serious life-threatening situation. Breathing becomes unmanageable, making lucid thinking almost impossible. The use of a specialized swimsuit is crucial to control thermal loss.

Daylight

December has the shortest days of the year in Saint Ignace, with an average of 8h and 42min of daylight.
On the first day of the month, sunrise is at 8:00 am and sunset at 4:55 pm. On the last day of December, in Saint Ignace, sunrise is at 8:20 am and sunset at 5:04 pm EST.

Sunshine

In Saint Ignace, the average sunshine in December is 2.3h.

UV index

January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Saint Ignace. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 1 in December translates into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

How cold is it in Saint Ignace in December?

Saint Ignace in December has an average high-temperature of 30.2°F (-1°C) and an average low-temperature of 23°F (-5°C).

What is the average humidity in December in Saint Ignace?

The average relative humidity in December is 85%.

How many days does it rain in December in Saint Ignace?

In Saint Ignace, during December, the rain falls for 9.2 days and regularly aggregates up to 1.73" (44mm) of precipitation.

How many days does it snow in December in Saint Ignace?

In December, in Saint Ignace, Michigan, it is snowing for 19.2 days. Throughout December, 5.59" (142mm) of snow is accumulated.

How cold is the water in December in Saint Ignace?

In December, the average ocean temperature in Saint Ignace is 40.3°F (4.6°C). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

What is the month with the shortest days in Saint Ignace?

With an average of 8h and 42min of daylight, December has the shortest days of the year.

What is the average length of the day in December in Saint Ignace?

In December, the average day length is 8h and 44min.

When are sunrise and sunset in December in Saint Ignace?

On the first day of December in Saint Ignace, Michigan, sunrise is at 8:00 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 8:20 am and sunset at 5:04 pm EST.

How many hours of sunshine does Saint Ignace have in December?

In December, the average sunshine duration in Saint Ignace, Michigan, is 2.3h.

When is the lowest UV index in Saint Ignace?

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

How high is the UV index in December in Saint Ignace?

In Saint Ignace, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Saint Ignace, MI

Average temperature in December - Saint Ignace, MI
  • Average high temperature in December: 30.2°F

The warmest month (with the highest average high temperature) is July (71.4°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in December: 23°F

The month with the highest average low temperature is August (58.6°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).

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Average pressure in December
Saint Ignace, MI

Average pressure in December - Saint Ignace, MI
  • Average pressure in December: 30.02"Hg

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 in December
Saint Ignace, MI

Average wind speed in December - Saint Ignace, MI
  • Average wind speed in December: 10.9mph

The windiest months (with the highest average wind speed) are November and December (10.9mph).
The calmest months (with the lowest average wind speed) are June and July (7.6mph).

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Average humidity in December
Saint Ignace, MI

Average humidity in December - Saint Ignace, MI
  • Average humidity in December: 85%

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (75%).

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Average rainfall in December
Saint Ignace, MI

Average rainfall in December - Saint Ignace, MI
  • Average rainfall in December: 1.73"

The wettest month (with the highest rainfall) is October (2.72").
The driest month (with the least rainfall) is January (1.3").

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Average rainfall days in December
Saint Ignace, MI

Average rainfall days in December - Saint Ignace, MI
  • Average rainfall days in December: 9.2 days

The month with the highest number of rainy days is October (16.5 days).
The month with the least rainy days is February (5.3 days).

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Average snowfall in December
Saint Ignace, MI

Average snowfall in December - Saint Ignace, MI
  • Average snowfall in December: 5.59"

The month with the highest snowfall is January (5.91").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Saint Ignace, MI

Average snowfall days in December - Saint Ignace, MI
  • Average snowfall days in December: 19.2 days

The month with the highest number of snowfall days is January (21.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in December
Saint Ignace, MI

Average sea temperature in December - Saint Ignace, MI
  • Average sea temperature in December: 40.3°F

The best month for swimming (with the highest average sea temperature) is August (68.6°F).
The coldest month (with the lowest average sea temperature) is March (33.1°F).

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Average daylight in December /
Average sunshine in December
Saint Ignace, MI

Average daylight in December / Average sunshine in December - Saint Ignace, MI
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in December: 2h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).

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Average sunshine days in December
Saint Ignace, MI

Average sunshine days in December - Saint Ignace, MI
  • Average sunshine days in December: 7.6 days

The month with the most sunshine days is September (16.9 days).
The month with the least sunshine days is January (7.1 days).

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Average UV index in December
Saint Ignace, MI

Average UV index in December - Saint Ignace, MI
  • Average UV index in December: 1

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 1).

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Average cloud cover in December
Saint Ignace, MI

Average cloud cover in December - Saint Ignace, MI
  • Average cloud cover in December: 75

The month with the most cloud cover is January (Cloud cover 80).
The months with the least cloud cover are July and August (Cloud cover 32).

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Average visibility in December
Saint Ignace, MI

Average visibility in December - Saint Ignace, MI
  • Average visibility in December: 5mi

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, February, March and December (5mi).

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Saint Ignace, Michigan, USA

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