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
December brings a decrease in the average high-temperature, shifting from a chilly 47.5°F (8.6°C) in November to an icy 36°F (2.2°C). Spring Bay encounters an average low-temperature of 25.7°F (-3.5°C) during December nights.Humidity
In December, the average relative humidity in Spring Bay is 81%.Rainfall
In Spring Bay, in December, it is raining for 5.7 days, with typically 0.75" (19mm) of accumulated precipitation. Throughout the year, there are 123.4 rainfall days, and 15.12" (384mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In December, it is snowing for 6.3 days. Throughout December, 0.94" (24mm) of snow is accumulated. Throughout the year, in Spring Bay, there are 27.8 snowfall days, and 6.46" (164mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:03 am and sunset at 4:31 pm. On the last day of December, in Spring Bay, sunrise is at 7:22 am and sunset at 4:40 pm CST.
Sunshine
The average sunshine in December in Spring Bay is 4.3h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Spring Bay. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. To guard against the harmful effects of the Sun, minimize exposure during midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
How cold is it in Spring Bay in December?
What is the average humidity in December in Spring Bay?
How many days does it rain in December in Spring Bay?
How much does it snow in Spring Bay in December?
What is the month with the shortest days in Spring Bay?
How many hours of daylight does Spring Bay have in December?
What time are sunrise and sunset in December in Spring Bay?
How many hours of sunshine does Spring Bay have in December?
What is the month with the lowest UV index in Spring Bay?
How high is the UV index in December in Spring Bay?
Average temperature in December
Spring Bay, IL
- Average high temperature in December: 36°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in December
Spring Bay, 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 (29.91"Hg).
Average wind speed in December
Spring Bay, IL
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Spring Bay, IL
- Average humidity in December: 81%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Spring Bay, IL
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in December
Spring Bay, IL
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in December
Spring Bay, IL
- Average snowfall in December: 0.94"
The month with the highest snowfall is January (1.93").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Spring Bay, IL
- Average snowfall days in December: 6.3 days
The month with the highest number of snowfall days is January (9.2 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
Spring Bay, IL
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Spring Bay, IL
- Average sunshine days in December: 19.9 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (12.4 days).
Average UV index in December
Spring Bay, IL
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Spring Bay, IL
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in December
Spring Bay, 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).
Spring Bay, Illinois, USA
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