December weather forecast
Caledonia, MI

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Weather in December

The first month of the winter, December, is also a wintry month in Caledonia, Michigan, with temperature in the range of an average low of 25.3°F (-3.7°C) and an average high of 33.4°F (0.8°C).

Temperature

As November transitions to December, the average high-temperature falls from a frosty 45.1°F (7.3°C) to a cold 33.4°F (0.8°C). In Caledonia, the December nights are characterized by an average low-temperature of 25.3°F (-3.7°C), a minor dip from daytime readings.

Humidity

In Caledonia, Michigan, the average relative humidity in December is 85%.

Rainfall

In Caledonia, in December, during 7.4 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Caledonia, Michigan, during the entire year, the rain falls for 136.2 days and collects up to 18.98" (482mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Caledonia, during December, snow falls for 14.9 days and regularly aggregates up to 2.95" (75mm) of snow. In Caledonia, during the entire year, snow falls for 65.8 days and aggregates up to 14.17" (360mm) of snow.

Daylight

December has the shortest days of the year in Caledonia, with an average of 9h and 6min of daylight.
On the first day of the month, sunrise is at 7:53 am and sunset at 5:09 pm. On the last day of December, sunrise is at 8:12 am and sunset at 5:18 pm EST.

Sunshine

The average sunshine in December is 2.9h.

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 threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: An average UV index of 1 in December transforms into this advice:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
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Frequently asked questions

How cold is December in Caledonia?

The high-temperature, in December, in Caledonia, records 33.4°F (0.8°C), while the low-temperature is 25.3°F (-3.7°C).

What is the average humidity in December in Caledonia?

In December, the average relative humidity is 85%.

How many days does it rain in December in Caledonia?

In Caledonia, Michigan, during December, the rain falls for 7.4 days and regularly aggregates up to 1.26" (32mm) of precipitation.

How many days does it snow in December in Caledonia?

In Caledonia, in December, during 14.9 snowfall days, 2.95" (75mm) of snow is typically accumulated.

What is the month with the shortest days in Caledonia?

With an average of 9h and 6min of daylight, December has the shortest days of the year in Caledonia, Michigan.

How many hours of daylight does Caledonia have in December?

In Caledonia, the average day length in December is 9h and 5min.

When is the sunrise / sunset in December in Caledonia?

On the first day of December in Caledonia, Michigan, sunrise is at 7:53 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 8:12 am and sunset at 5:18 pm EST.

How long on average sun shines in December in Caledonia?

In December, the average sunshine duration in Caledonia is 2.9h.

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

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

How high is the UV index in December in Caledonia?

In Caledonia, Michigan, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Caledonia, MI

Average temperature in December - Caledonia, MI
  • Average high temperature in December: 33.4°F

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (27.5°F).

  • Average low temperature in December: 25.3°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 (17.8°F).

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Average pressure in December
Caledonia, MI

Average pressure in December - Caledonia, MI
  • Average pressure in December: 30.07"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
Caledonia, MI

Average wind speed in December - Caledonia, MI
  • Average wind speed in December: 9.3mph

The windiest months (with the highest average wind speed) are February and April (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

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Average humidity in December
Caledonia, MI

Average humidity in December - Caledonia, MI
  • Average humidity in December: 85%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in December
Caledonia, MI

Average rainfall in December - Caledonia, MI
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is October (2.32").
The driest month (with the least rainfall) is February (1.06").

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Average rainfall days in December
Caledonia, MI

Average rainfall days in December - Caledonia, MI
  • Average rainfall days in December: 7.4 days

The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is February (5 days).

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Average snowfall in December
Caledonia, MI

Average snowfall in December - Caledonia, MI
  • Average snowfall in December: 2.95"

The month with the highest snowfall is January (4.13").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Caledonia, MI

Average snowfall days in December - Caledonia, MI
  • Average snowfall days in December: 14.9 days

The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 2h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

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Average sunshine days in December
Caledonia, MI

Average sunshine days in December - Caledonia, MI
  • Average sunshine days in December: 11.2 days

The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is February (9.5 days).

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Average UV index in December
Caledonia, MI

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

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

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Average cloud cover in December
Caledonia, MI

Average cloud cover in December - Caledonia, MI
  • Average cloud cover in December: 70

The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in December
Caledonia, MI

Average visibility in December - Caledonia, MI
  • Average visibility in December: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

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Caledonia, Michigan, USA

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