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
Shelbyville in December demonstrates a small temperature transition, adjusting from an average high of a frosty 45.3°F (7.4°C) in November to an icy 34.2°F (1.2°C). In the month of December, Shelbyville experiences a minor discrepancy from peak daytime temperatures, settling at an average low-temperature of 26.1°F (-3.3°C).Humidity
The average relative humidity in December is 84%.Rainfall
In Shelbyville, Michigan, in December, it is raining for 8 days, with typically 1.22" (31mm) of accumulated precipitation. In Shelbyville, during the entire year, the rain falls for 137.6 days and collects up to 19.41" (493mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Shelbyville. In Shelbyville, Michigan, in December, snow falls for 14.5 days, with typically accumulated 3.11" (79mm) of snow. Throughout the year, there are 66.9 snowfall days, and 16.54" (420mm) of snow is accumulated.Daylight
December has the shortest days of the year in Shelbyville, with an average of 9h and 6min of daylight.On the first day of December in Shelbyville, sunrise is at 7:53 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 8:12 am and sunset at 5:19 pm EST.
Sunshine
In December, the average sunshine in Shelbyville is 3h.UV index
The months with the lowest UV index in Shelbyville are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.Note: In December, the maximum UV index of 1 translates into these guidelines:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. To cut down UV radiation exposure by about half, sport a wide-brim hat. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is it in Shelbyville in December?
What is the average humidity in December in Shelbyville?
How many days does it rain in December in Shelbyville?
How much does it snow in Shelbyville in December?
What is the month with the shortest days in Shelbyville?
What is the average length of the day in December in Shelbyville?
What time are sunrise and sunset in December in Shelbyville?
How many hours of sunshine does Shelbyville have in December?
When is the lowest UV index in Shelbyville?
What is the UV index reading in December in Shelbyville?
Average temperature in December
Shelbyville, MI
- Average high temperature in December: 34.2°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 (28.4°F).
- Average low temperature in December: 26.1°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in December
Shelbyville, 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
Shelbyville, MI
- Average wind speed in December: 9.6mph
The windiest months (with the highest average wind speed) are January, February and April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in December
Shelbyville, 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 (76%).
Average rainfall in December
Shelbyville, MI
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is October (2.36").
The driest month (with the least rainfall) is November (1.1").
Average rainfall days in December
Shelbyville, MI
- Average rainfall days in December: 8 days
The month with the highest number of rainy days is October (15 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in December
Shelbyville, MI
- Average snowfall in December: 3.11"
The month with the highest snowfall is January (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Shelbyville, MI
- Average snowfall days in December: 14.5 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Shelbyville, 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 30min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in December
Shelbyville, MI
- Average sunshine days in December: 11.2 days
The month with the most sunshine days is September (16.1 days).
The month with the least sunshine days is February (9 days).
Average UV index in December
Shelbyville, MI
- Average UV index in December: 1
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Shelbyville, 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 29).
Average visibility in December
Shelbyville, 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).
Shelbyville, Michigan, USA
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