December weather forecast
Monroe, MI

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Weather in December

December wraps up the year with Monroe, Michigan covered in snow and cold temperatures prevailing. The arrival of winter is signified by shorter days, longer nights, and less sunshine. Among the significant shifts this month is the recorded snowfall of 0.39" (10mm). The festive season adds charm to the snow-covered city, with lights illuminating the nights against the contrasting white backdrop. As December ends, residents anticipate the continuity of winter into the new year.

Temperature

December indicates a shift in the average high-temperature, from November's chilly 46.6°F (8.1°C) to a wintry 35.8°F (2.1°C). Monroe's nighttime temperatures in December see a subtle dip to an average of 27.3°F (-2.6°C).

Humidity

The average relative humidity in December is 82%.

Rainfall

In Monroe, in December, it is raining for 6.1 days, with typically 0.43" (11mm) of accumulated precipitation. In Monroe, during the entire year, the rain falls for 103.1 days and collects up to 8.66" (220mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Monroe, in December, snow falls for 6.8 days, with typically accumulated 0.39" (10mm) of snow. Throughout the year, there are 32.9 snowfall days, and 3.27" (83mm) of snow is accumulated.

Ocean temperature

In Monroe, in December, the average water temperature is 37.8°F (3.2°C).
Note: When swimming, this is deemed life-endangering and extremely risky. The painful cold water instigates fast-paced hyperventilation. Wearing a specialized swimsuit is necessary to lessen thermal harm.

Daylight

The month with the shortest days in Monroe, Michigan, is December, with an average of 9h and 12min of daylight.
On the first day of December in Monroe, sunrise is at 7:42 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:12 pm EST.

Sunshine

In December, the average sunshine is 3.6h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 1 during December leads to these instructions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Experience reduced UV exposure by about half when donning a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Feb 12, 2024 | Published by: Weather U.S. | Resources

Frequently asked questions

How cold is it in Monroe in December?

The high-temperature during December is 35.8°F (2.1°C) and the low-temperature is 27.3°F (-2.6°C).

What is the average humidity in December in Monroe?

In December, the average relative humidity is 82%.

How many days does it rain in December in Monroe?

In Monroe, Michigan, in December, during 6.1 rainfall days, 0.43" (11mm) of precipitation is typically accumulated.

How much does it snow in Monroe in December?

In December, in Monroe, Michigan, it is snowing for 6.8 days. Throughout December, 0.39" (10mm) of snow is accumulated.

What is the ocean temperature in December in Monroe?

In December, the average ocean temperature in Monroe, Michigan, is 37.8°F (3.2°C). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

What is the month with the shortest days in Monroe?

With an average of 9h and 12min of daylight, December has the shortest days of the year in Monroe.

What is the average length of the day in December in Monroe?

The average day length in December in Monroe is 9h and 11min.

When is the sunrise / sunset in December in Monroe?

On the first day of December, sunrise is at 7:42 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:12 pm EST.

How many hours of sunshine does Monroe have in December?

In December, the average sunshine duration in Monroe, Michigan, is 3.6h.

When is the lowest UV index in Monroe?

The month with the lowest UV index is December, with an average maximum UV index of 1.

How high is the UV index in December in Monroe?

The average daily maximum UV index in December in Monroe, Michigan, is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
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
Monroe, MI

Average temperature in December - Monroe, MI
  • Average high temperature in December: 35.8°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in December: 27.3°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19°F).

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Average pressure in December
Monroe, MI

Average pressure in December - Monroe, MI
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Monroe, MI

Average wind speed in December - Monroe, MI
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in December
Monroe, MI

Average humidity in December - Monroe, MI
  • Average humidity in December: 82%

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in December
Monroe, MI

Average rainfall in December - Monroe, MI
  • Average rainfall in December: 0.43"

The wettest months (with the highest rainfall) are May, June and August (1.06").
The driest month (with the least rainfall) is September (0.39").

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Average rainfall days in December
Monroe, MI

Average rainfall days in December - Monroe, MI
  • Average rainfall days in December: 6.1 days

The month with the highest number of rainy days is May (12.2 days).
The month with the least rainy days is January (4.3 days).

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Average snowfall in December
Monroe, MI

Average snowfall in December - Monroe, MI
  • Average snowfall in December: 0.39"

The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Monroe, MI

Average snowfall days in December - Monroe, MI
  • Average snowfall days in December: 6.8 days

The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average sea temperature in December
Monroe, MI

Average sea temperature in December - Monroe, MI
  • Average sea temperature in December: 37.8°F

The best month for swimming (with the highest average sea temperature) is August (76.4°F).
The coldest month (with the lowest average sea temperature) is February (32.6°F).

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Average daylight in December /
Average sunshine in December
Monroe, MI

Average daylight in December / Average sunshine in December - Monroe, MI
  • Average daylight in December: 9h and 1min

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).

  • Average sunshine in December: 3h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in December
Monroe, MI

Average sunshine days in December - Monroe, MI
  • Average sunshine days in December: 20.1 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is April (14.9 days).

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Average UV index in December
Monroe, MI

Average UV index in December - Monroe, MI
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Monroe, MI

Average cloud cover in December - Monroe, MI
  • Average cloud cover in December: 62

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in December
Monroe, MI

Average visibility in December - Monroe, MI
  • Average visibility in December: 6mi

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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Monroe, Michigan, USA

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