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
Onset of December witnesses a reduction in the average high-temperature, falling from a chilly 45.7°F (7.6°C) in November to a wintry 35.2°F (1.8°C). During December, Dearborn's nights hold steady with an average temperature of 27.5°F (-2.5°C), barely dropping from the daytime highs.Humidity
The average relative humidity in December in Dearborn is 81%.Rainfall
In Dearborn, in December, it is raining for 7.7 days, with typically 0.91" (23mm) of accumulated precipitation. Throughout the year, there are 140.2 rainfall days, and 17.56" (446mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In Dearborn, in December, during 10.5 snowfall days, 1.3" (33mm) of snow is typically accumulated. Throughout the year, there are 47.2 snowfall days, and 9.69" (246mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:42 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:10 pm EST.
Sunshine
In December, the average sunshine is 3.6h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: In December, a regular UV index of 1 translates into these guidelines:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost 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?
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 Dearborn have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Dearborn have in December?
When is the lowest UV index?
What is the UV index reading in December in Dearborn?
Average temperature in December
Dearborn, MI
- Average high temperature in December: 35.2°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in December
Dearborn, MI
- Average pressure in December: 30.08"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
Dearborn, MI
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Dearborn, MI
- Average humidity in December: 81%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (73%).
Average rainfall in December
Dearborn, MI
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is May (2.2").
The driest months (with the least rainfall) are January and February (0.87").
Average rainfall days in December
Dearborn, MI
- Average rainfall days in December: 7.7 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in December
Dearborn, MI
- Average snowfall in December: 1.3"
The month with the highest snowfall is February (2.95").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Dearborn, MI
- Average snowfall days in December: 10.5 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Dearborn, 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 6min).
- Average sunshine in December: 3h and 4min
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 6min).
Average sunshine days in December
Dearborn, MI
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is October (16.8 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in December
Dearborn, MI
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Dearborn, MI
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Dearborn, 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).
Dearborn, Michigan, USA
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