December weather forecast
Marcellus, MI

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Weather in December

December, the first month of the winter in Marcellus, is also an icy month, with an average temperature varying between 34.9°F (1.6°C) and 25.9°F (-3.4°C).

Temperature

With December's onset, the weather shows a temperature decrease, transitioning from a frosty 46°F (7.8°C) in November to a wintry 34.9°F (1.6°C). Marcellus's nighttime average temperature in December drops marginally from the daytime highs, settling at a freezing cold 25.9°F (-3.4°C).

Humidity

In Marcellus, the average relative humidity in December is 84%.

Rainfall

The months with the least rainfall are January, February, November and December Rain falls for 6 days and accumulates 0.63" (16mm) of rain.

Snowfall

Months with snowfall are January through May, October through December. In Marcellus, during December, snow falls for 8.7 days and regularly aggregates up to 0.59" (15mm) of snow. Throughout the year, there are 41.8 snowfall days, and 5.98" (152mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 12min of daylight.
On the first day of December in Marcellus, Michigan, sunrise is at 7:52 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 5:21 pm EST.

Sunshine

In Marcellus, the average sunshine in December is 3.3h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.
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. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

An average high-temperature, in December, in Marcellus, is 34.9°F (1.6°C) and the average low-temperature is 25.9°F (-3.4°C).

What is the average humidity in December?

The average relative humidity in December is 84%.

What is the driest month?

The months with the least rainfall are January, February, November and December Rain falls for 6 days and accumulates 0.63" (16mm) of rain.

How much does it rain in December?

In Marcellus, in December, during 6 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

How much does it snow in December?

In December, it is snowing for 8.7 days. Throughout December, 0.59" (15mm) of snow is accumulated.

What is the month with the shortest days?

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

How many hours of daylight does Marcellus have in December?

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

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:52 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 5:21 pm EST.

How long on average sun shines in December?

In Marcellus, the average sunshine duration in December is 3.3h.

What is the month with the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's 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
Marcellus, MI

Average temperature in December - Marcellus, MI
  • Average high temperature in December: 34.9°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in December: 25.9°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).

Average pressure in December
Marcellus, MI

Average pressure in December - Marcellus, 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).

Average wind speed in December
Marcellus, MI

Average wind speed in December - Marcellus, MI
  • Average wind speed in December: 9.7mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in December
Marcellus, MI

Average humidity in December - Marcellus, MI
  • Average humidity in December: 84%

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

Average rainfall in December
Marcellus, MI

Average rainfall in December - Marcellus, MI
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is May (1.73").
The driest months (with the least rainfall) are January, February, November and December (0.63").

Average rainfall days in December
Marcellus, MI

Average rainfall days in December - Marcellus, MI
  • Average rainfall days in December: 6 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (4.4 days).

Average snowfall in December
Marcellus, MI

Average snowfall in December - Marcellus, MI
  • Average snowfall in December: 0.59"

The month with the highest snowfall is January (1.61").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Marcellus, MI

Average snowfall days in December - Marcellus, MI
  • Average snowfall days in December: 8.7 days

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Marcellus, 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 2min

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 48min).

Average sunshine days in December
Marcellus, MI

Average sunshine days in December - Marcellus, MI
  • Average sunshine days in December: 18.5 days

The months with the most sunshine days are November and December (18.5 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in December
Marcellus, MI

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

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

Average cloud cover in December
Marcellus, MI

Average cloud cover in December - Marcellus, MI
  • Average cloud cover in December: 66

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in December
Marcellus, MI

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

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

Marcellus, Michigan, USA

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