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
During the transition into December, Deckerville observes a decrease in the average high-temperature, falling from a chilly 43.7°F (6.5°C) in November to an icy 33.3°F (0.7°C). An average low-temperature of 25.9°F (-3.4°C) is witnessed throughout the month of December, a mere drop from the daytime peak.Humidity
In December, the average relative humidity is 83%.Rainfall
The months with the least rainfall are February and December Rain falls for 7.3 days and accumulates 1.26" (32mm) of rain.Snowfall
Months with snowfall are January through May, October through December. In Deckerville, in December, during 13.5 snowfall days, 2.8" (71mm) of snow is typically accumulated. In Deckerville, during the entire year, snow falls for 65.9 days and aggregates up to 16.46" (418mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 7:44 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 5:04 pm EST.
Sunshine
The average sunshine in December is 3.2h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 1 translates into these guidelines:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
What is the driest month?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Deckerville have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Deckerville have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Deckerville, MI
- Average high temperature in December: 33.3°F
The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 25.9°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
Deckerville, 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 (29.93"Hg).
Average wind speed in December
Deckerville, MI
- Average wind speed in December: 11.4mph
The windiest month (with the highest average wind speed) is January (11.8mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in December
Deckerville, MI
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and May (78%).
Average rainfall in December
Deckerville, MI
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is May (2.48").
The driest months (with the least rainfall) are February and December (1.26").
Average rainfall days in December
Deckerville, MI
- Average rainfall days in December: 7.3 days
The month with the highest number of rainy days is October (16.9 days).
The month with the least rainy days is February (5.5 days).
Average snowfall in December
Deckerville, MI
- Average snowfall in December: 2.8"
The month with the highest snowfall is January (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Deckerville, MI
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Deckerville, 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: 3h and 1min
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 42min).
Average sunshine days in December
Deckerville, MI
- Average sunshine days in December: 11 days
The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is February (9.2 days).
Average UV index in December
Deckerville, MI
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Deckerville, MI
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Deckerville, MI
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Deckerville, Michigan, USA
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