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 undergoes a mild reduction in the average high-temperature, shifting from November's chilly 49.5°F (9.7°C) to an icy 39.2°F (4°C). An average minimum temperature of 28.6°F (-1.9°C) is recorded during the month of December.Humidity
January, July and December, with an average relative humidity of 82%, are the most humid months.Rainfall
In Shelbyville, during December, the rain falls for 9.3 days and regularly aggregates up to 1.89" (48mm) of precipitation. Throughout the year, there are 153.4 rainfall days, and 26.81" (681mm) of precipitation is accumulated.Snowfall
Months with snowfall in Shelbyville, Indiana, are January through April, November and December. In December, it is snowing for 6.8 days. Throughout December, 2.01" (51mm) of snow is accumulated. Throughout the year, there are 28.6 snowfall days, and 9.13" (232mm) of snow is accumulated.Daylight
December has the shortest days of the year in Shelbyville, Indiana, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:45 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 5:29 pm EST.
Sunshine
In Shelbyville, the average sunshine in December is 4.2h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The average daily UV index of 1 in December transforms into the following instructions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Shelbyville?
What is the most humid month in Shelbyville?
What is the average humidity in December in Shelbyville?
How much does it rain in Shelbyville in December?
How many days does it snow in December in Shelbyville?
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 long on average sun shines in December in Shelbyville?
What is the month with the lowest UV index in Shelbyville?
What is the UV index reading in December in Shelbyville?
Average temperature in December
Shelbyville, IN
- Average high temperature in December: 39.2°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in December: 28.6°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in December
Shelbyville, IN
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Shelbyville, IN
- Average wind speed in December: 9mph
The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Shelbyville, IN
- Average humidity in December: 82%
The months with the highest relative humidity are January, July and December (82%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Shelbyville, IN
- Average rainfall in December: 1.89"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in December
Shelbyville, IN
- Average rainfall days in December: 9.3 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (8 days).
Average snowfall in December
Shelbyville, IN
- Average snowfall in December: 2.01"
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Shelbyville, IN
- Average snowfall days in December: 6.8 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Shelbyville, IN
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Shelbyville, IN
- Average sunshine days in December: 16 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in December
Shelbyville, IN
- Average UV index in December: 1
The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Shelbyville, IN
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Shelbyville, IN
- 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).
Shelbyville, Indiana, USA
Weather forecast for your location
2. Allow the app to use your location