December weather forecast and climate
Monroe, MI

Weather in December

December, the first month of the winter, in Monroe, is also a wintry month, with temperature in the range of an average low of 27.3°F (-2.6°C) and an average high of 35.8°F (2.1°C).

Temperature

In Monroe, Michigan, the average high-temperature decreases, from a frosty 46.6°F (8.1°C) in November, to a cold 35.8°F (2.1°C). The average low-temperature, in December, is 27.3°F (-2.6°C).

Humidity

In Monroe, the average relative humidity is 82%.

Rainfall

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

Snowfall

Months with snowfall in Monroe are January through April, November and December. In Monroe, during December, snow falls for 6.8 days and regularly aggregates up to 0.39" (10mm) of snow. In Monroe, during the entire year, snow falls for 32.9 days, and aggregates up to 3.27" (83mm) of snow.

Ocean temperature

In Monroe, Michigan, the average seawater temperature is 37.8°F (3.2°C).
Note: 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.

Daylight

With an average of 9.2h of daylight, December has the shortest days of the year.

Sunshine

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

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index in Monroe. A UV Index estimate of 2, and below, represents a low threat to health from the exposure to the Sun's UV radiation for the average person.
Note: In December, the average maximum UV index of 1 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in December in Monroe?

In Monroe, the average relative humidity in December is 82%.

How many days does it rain in December in Monroe?

In December, in Monroe, Michigan, the rain falls for 6.1 days. Throughout December, 0.43" (11mm) of precipitation is accumulated.

How many days does it snow in December in Monroe?

In December, in Monroe, 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 Monroe, Michigan, in December, the average water temperature is 37.8°F (3.2°C). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

What is the month with the shortest days in Monroe?

The month with the shortest days in Monroe is December, with an average of 9.2h of daylight.

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

In December, the average length of the day in Monroe is 9.2h.

How many hours of sunshine does Monroe have in December?

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

When is the lowest UV index in Monroe?

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

How high is the UV index in December in Monroe?

In Monroe, Michigan, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in December
Monroe, MI

Average temperature in December - Monroe, MI
  • Average high temperature in December: 2.1°C

The warmest month (with the highest average high temperature) is July (26.8°C).
The month with the lowest average high temperature is January (-1.3°C).

  • Average low temperature in December: -2.6°C

The month with the highest average low temperature is July (17.8°C).
The coldest month (with the lowest average low temperature) is January (-7.2°C).

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Average pressure in December
Monroe, MI

Average pressure in December - Monroe, MI
  • Average pressure in December: 1018.8mbar

The month with the highest atmospheric pressure is November (1019.4mbar).
The month with the lowest atmospheric pressure is June (1013.5mbar).

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Average wind speed in December
Monroe, MI

Average wind speed in December - Monroe, MI
  • Average wind speed in December: 15.9km/h

The windiest month (with the highest average wind speed) is January (16.7km/h).
The calmest month (with the lowest average wind speed) is July (10.7km/h).

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Average humidity in December
Monroe, MI

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

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: 11mm

The wettest months (with the highest rainfall) are May, June and August (27mm).
The driest month (with the least rainfall) is September (10mm).

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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: 10mm

The month with the highest snowfall is February (26mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

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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).
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: 3.2°C

The best month for swimming (with the highest average sea temperature) is August (24.7°C).
The coldest month (with the lowest average sea temperature) is February (0.3°C).

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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: 9.2h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in December: 3.6h

The month with the most sunshine is July (Average sunshine: 10.3h).
The month with the least sunshine is January (Average sunshine: 3.2h).

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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

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: 9km

The month with the highest visibility is October (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, November and December (9km).

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