Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The shift to December brings a decrease in the average high-temperature, falling from a frosty 45.5°F (7.5°C) in November to a cold 34.7°F (1.5°C). A consistent average low-temperature of 26.8°F (-2.9°C), with a minor variance from the daytime highs, is noted during the nights of December.Humidity
In December, the average relative humidity is 82%.Rainfall
The month with the least rainfall is December, when the rain falls for 7.3 days and typically collects 1.18" (30mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Macomb, in December, snow falls for 8.5 days, with typically accumulated 1.81" (46mm) of snow. In Macomb, during the entire year, snow falls for 43.5 days and aggregates up to 12.72" (323mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:43 am and sunset at 4:59 pm. On the last day of December, sunrise is at 8:02 am and sunset at 5:08 pm EST.
Sunshine
The average sunshine in December is 3.5h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index, 1 during December, leads to the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Boost your sun resistance with garments that are densely woven yet spacious. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
What is the driest month?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Macomb have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Macomb, MI
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in December
Macomb, MI
- Average pressure in December: 30.07"Hg
The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Macomb, MI
- Average wind speed in December: 10.3mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in December
Macomb, MI
- Average humidity in December: 82%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, May, July, August, September and October (76%).
Average rainfall in December
Macomb, MI
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is December (1.18").
Average rainfall days in December
Macomb, MI
- Average rainfall days in December: 7.3 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in December
Macomb, MI
- Average snowfall in December: 1.81"
The month with the highest snowfall is February (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Macomb, MI
- Average snowfall days in December: 8.5 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Macomb, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in December
Macomb, MI
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (10.5 days).
Average UV index in December
Macomb, MI
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Macomb, MI
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Macomb, MI
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Macomb, Michigan, USA
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