December weather forecast
Luther, MI

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Weather in December

The first month of the winter, December, is also a subzero cold month in Luther, Michigan, with an average temperature fluctuating between 23°F (-5°C) and 30.4°F (-0.9°C).

Temperature

December shows a mild decline in the average high-temperature, falling from November's icy 41.9°F (5.5°C) to a subzero cold 30.4°F (-0.9°C). Luther observes a minimal variance in temperature, with a consistent average low of 23°F (-5°C) during the nights of December.

Humidity

The average relative humidity in December in Luther is 88%.

Rainfall

In December, the rain falls for 6.5 days. Throughout December, 1.54" (39mm) of precipitation is accumulated. In Luther, during the entire year, the rain falls for 129.1 days and collects up to 21.14" (537mm) of precipitation.

Snowfall

Months with snowfall in Luther, Michigan, are January through May, October through December. In Luther, during December, snow falls for 18.3 days and regularly aggregates up to 5.39" (137mm) of snow. In Luther, during the entire year, snow falls for 85.5 days and aggregates up to 25.47" (647mm) of snow.

Daylight

With an average of 9h and 0min of daylight, December has the shortest days of the year in Luther.
On the first day of the month, sunrise is at 7:58 am and sunset at 5:05 pm. On the last day of December, sunrise is at 8:17 am and sunset at 5:14 pm EST.

Sunshine

In Luther, the average sunshine in December is 2.2h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Luther?

In Luther, in December, the average high-temperature is 30.4°F (-0.9°C), and the average low-temperature is 23°F (-5°C).

What is the average humidity in December in Luther?

The average relative humidity in December in Luther, Michigan, is 88%.

How many days does it rain in December in Luther?

In December, in Luther, Michigan, the rain falls for 6.5 days. Throughout December, 1.54" (39mm) of precipitation is accumulated.

How many days does it snow in December in Luther?

In Luther, in December, snow falls for 18.3 days, with typically accumulated 5.39" (137mm) of snow.

What is the month with the shortest days in Luther?

With an average of 9h and 0min of daylight, December has the shortest days of the year in Luther, Michigan.

How many hours of daylight does Luther have in December?

In Luther, the average day length in December is 8h and 57min.

When are sunrise and sunset in December in Luther?

In December, on the first day of the month, sunrise is at 7:58 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 8:17 am and sunset at 5:14 pm EST.

How many hours of sunshine does Luther have in December?

The average sunshine duration in December in Luther is 2.2h.

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

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

How high is the UV index in December in Luther?

The average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health threat from 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
Luther, MI

Average temperature in December - Luther, MI
  • Average high temperature in December: 30.4°F

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (25°F).

  • Average low temperature in December: 23°F

The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

Average pressure in December
Luther, MI

Average pressure in December - Luther, MI
  • Average pressure in December: 30.06"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
Luther, MI

Average wind speed in December - Luther, MI
  • Average wind speed in December: 9.5mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

Average humidity in December
Luther, MI

Average humidity in December - Luther, MI
  • Average humidity in December: 88%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (74%).

Average rainfall in December
Luther, MI

Average rainfall in December - Luther, MI
  • Average rainfall in December: 1.54"

The wettest month (with the highest rainfall) is October (3.07").
The driest month (with the least rainfall) is September (1.14").

Average rainfall days in December
Luther, MI

Average rainfall days in December - Luther, MI
  • Average rainfall days in December: 6.5 days

The month with the highest number of rainy days is October (15.5 days).
The month with the least rainy days is February (3.8 days).

Average snowfall in December
Luther, MI

Average snowfall in December - Luther, MI
  • Average snowfall in December: 5.39"

The month with the highest snowfall is January (6.77").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Luther, MI

Average snowfall days in December - Luther, MI
  • Average snowfall days in December: 18.3 days

The month with the highest number of snowfall days is January (21.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Luther, MI
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 2h and 1min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).

Average sunshine days in December
Luther, MI

Average sunshine days in December - Luther, MI
  • Average sunshine days in December: 8.3 days

The month with the most sunshine days is September (16.3 days).
The month with the least sunshine days is January (7.7 days).

Average UV index in December
Luther, MI

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

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in December
Luther, MI

Average cloud cover in December - Luther, MI
  • Average cloud cover in December: 76

The month with the most cloud cover is January (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 35).

Average visibility in December
Luther, MI

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

The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January and February (4mi).

Luther, Michigan, USA

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