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 in Bloomington witnesses a reduction in the average high-temperature, falling from a frosty 47.7°F (8.7°C) in November to a cold 36.5°F (2.5°C). Bloomington's nighttime temperature in December falls to an average of 26.2°F (-3.2°C).Humidity
In December, the average relative humidity in Bloomington, Illinois, is 80%.Rainfall
In Bloomington, in December, during 7.1 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. In Bloomington, during the entire year, the rain falls for 140.6 days and collects up to 22.44" (570mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Bloomington. In Bloomington, in December, snow falls for 8 days, with typically accumulated 1.65" (42mm) of snow. In Bloomington, during the entire year, snow falls for 35.4 days and aggregates up to 9.45" (240mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Bloomington.On the first day of December in Bloomington, sunrise is at 7:00 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:39 pm CST.
Sunshine
In December, the average sunshine in Bloomington is 4.1h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 2 in December translates into these instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
How cold is December in Bloomington?
What is the average humidity in December in Bloomington?
How much does it rain in Bloomington in December?
How much does it snow in Bloomington in December?
What is the month with the shortest days in Bloomington?
How many hours of daylight does Bloomington have in December?
What time are sunrise and sunset in December in Bloomington?
How many hours of sunshine does Bloomington have in December?
What are the months with the lowest UV index in Bloomington?
What is the UV index intensity in December in Bloomington?
Average temperature in December
Bloomington, IL
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in December: 26.2°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Bloomington, IL
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Bloomington, IL
- Average wind speed in December: 10.5mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Bloomington, IL
- Average humidity in December: 80%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Bloomington, IL
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in December
Bloomington, IL
- Average rainfall days in December: 7.1 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in December
Bloomington, IL
- Average snowfall in December: 1.65"
The month with the highest snowfall is January (2.44").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Bloomington, IL
- Average snowfall days in December: 8 days
The month with the highest number of snowfall days is January (11.5 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, IL
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Bloomington, IL
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (9.7 days).
Average UV index in December
Bloomington, IL
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Bloomington, IL
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in December
Bloomington, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Bloomington, Illinois, USA
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