December weather forecast
Byron Center, MI

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Weather in December

The first month of the winter, December, is also a wintry month in Byron Center, Michigan, with an average temperature varying between 26.1°F (-3.3°C) and 33.6°F (0.9°C).

Temperature

December weather is marked by a drop in the average high-temperature, falling from a chilly 45.3°F (7.4°C) in November to a wintry 33.6°F (0.9°C). Throughout the nights in December, Byron Center notes an average low of 26.1°F (-3.3°C), a small dip from the daytime peak.

Humidity

The average relative humidity in December is 84%.

Rainfall

In Byron Center, in December, it is raining for 7.9 days, with typically 1.3" (33mm) of accumulated precipitation. Throughout the year, there are 139.8 rainfall days, and 19.57" (497mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Byron Center, in December, during 13.9 snowfall days, 2.87" (73mm) of snow is typically accumulated. In Byron Center, during the entire year, snow falls for 64.2 days and aggregates up to 14.49" (368mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 6min of daylight.
On the first day of December in Byron Center, sunrise is at 7:54 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 8:13 am and sunset at 5:18 pm EST.

Sunshine

In December, the average sunshine is 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 estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 1 in December leads to these guidelines:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.

Frequently asked questions

How cold is it in Byron Center in December?

In December, in Byron Center, the average high-temperature is 33.6°F (0.9°C), and the average low-temperature is 26.1°F (-3.3°C).

What is the average humidity in December?

In December, the average relative humidity is 84%.

How much does it rain in December?

In Byron Center, during December, the rain falls for 7.9 days and regularly aggregates up to 1.3" (33mm) of precipitation.

How much does it snow in December?

In Byron Center, in December, during 13.9 snowfall days, 2.87" (73mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 6min of daylight.

What is the average length of the day in December?

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

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:54 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 8:13 am and sunset at 5:18 pm EST.

How long on average sun shines in December?

In Byron Center, the average sunshine duration in December is 3h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

In Byron Center, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes 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
Byron Center, MI

Average temperature in December - Byron Center, MI
  • Average high temperature in December: 33.6°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (27.7°F).

  • Average low temperature in December: 26.1°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 (18.5°F).

Average pressure in December
Byron Center, MI

Average pressure in December - Byron Center, 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).

Average wind speed in December
Byron Center, MI

Average wind speed in December - Byron Center, MI
  • Average wind speed in December: 9.4mph

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

Average humidity in December
Byron Center, MI

Average humidity in December - Byron Center, MI
  • Average humidity in December: 84%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is April (75%).

Average rainfall in December
Byron Center, MI

Average rainfall in December - Byron Center, MI
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is November (1.06").

Average rainfall days in December
Byron Center, MI

Average rainfall days in December - Byron Center, MI
  • Average rainfall days in December: 7.9 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (5.1 days).

Average snowfall in December
Byron Center, MI

Average snowfall in December - Byron Center, MI
  • Average snowfall in December: 2.87"

The month with the highest snowfall is January (4.06").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Byron Center, MI

Average snowfall days in December - Byron Center, MI
  • Average snowfall days in December: 13.9 days

The month with the highest number of snowfall days is January (17.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Byron Center, MI

Average daylight in December / Average sunshine in December - Byron Center, 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: 3h and 0min

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

Average sunshine days in December
Byron Center, MI

Average sunshine days in December - Byron Center, MI
  • Average sunshine days in December: 12.7 days

The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is January (9.7 days).

Average UV index in December
Byron Center, MI

Average UV index in December - Byron Center, MI
  • Average UV index in December: 1

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

Average cloud cover in December
Byron Center, MI

Average cloud cover in December - Byron Center, MI
  • Average cloud cover in December: 69

The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in December
Byron Center, MI

Average visibility in December - Byron Center, 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 months with the lowest visibility are January, February and December (5mi).

Byron Center, Michigan, USA

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