December weather forecastBloomington, IN
December
Weather in December
December in Bloomington is a display of enchanting winters, characterized by dipping temperatures and increased snowfall. The average snowfall scales to 1.85" (47mm), biggest since January’s snowfall of 2.28" (58mm). It rings in the long-awaited festive season with the city beautifully festooned in Christmas decorations. Holiday cheer engulfs the city, providing some relief from the winter gloom and cold. Despite being one of the coldest months, December brings about a certain charm, making Bloomington a winter wonderland.Temperature
The beginning of December marks a decrease in the average high-temperature, transitioning from a fresh 51.3°F (10.7°C) in November to a wintry 40.6°F (4.8°C). An average nighttime temperature of 29.3°F (-1.5°C) is observed during December.Humidity
May and December, with an average relative humidity of 82%, are the most humid months.Rainfall
In Bloomington, in December, it is raining for 9.5 days, with typically 2.17" (55mm) of accumulated precipitation. In Bloomington, during the entire year, the rain falls for 150.5 days and collects up to 27.56" (700mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Bloomington, in December, snow falls for 5.8 days, with typically accumulated 1.85" (47mm) of snow. Throughout the year, there are 26.7 snowfall days, and 9.13" (232mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:47 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:33 pm EST.
Sunshine
With an average of 4.2h of sunshine, December has the least sunshine of the year in Bloomington.UV index
January, February, October and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 2 during December leads to these instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bloomington, IN
- Average high temperature in December: 40.6°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in December
Bloomington, IN
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Bloomington, IN
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Bloomington, IN
- Average humidity in December: 82%
The months with the highest relative humidity are May and December (82%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Bloomington, IN
- Average rainfall in December: 2.17"
The wettest month (with the highest rainfall) is April (3.11").
The driest months (with the least rainfall) are September and October (1.65").
Average rainfall days in December
Bloomington, IN
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in December
Bloomington, IN
- Average snowfall in December: 1.85"
The month with the highest snowfall is March (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Bloomington, IN
- Average snowfall days in December: 5.8 days
The month with the highest number of snowfall days is January (7.1 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
Bloomington, IN
- Average daylight in December: 9h and 30min
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 30min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in December
Bloomington, IN
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (9.2 days).
Average UV index in December
Bloomington, IN
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, October and December (UV index 2).
Average cloud cover in December
Bloomington, IN
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Bloomington, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).
