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's onset brings a slight change in high-temperatures, falling from a chilly 49.1°F (9.5°C) in November to a wintry 37.8°F (3.2°C). Savoy witnesses an average low-temperature of 27.7°F (-2.4°C) throughout the month of December.Humidity
In Savoy, the average relative humidity in December is 80%.Rainfall
In Savoy, in December, during 8.1 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. In Savoy, during the entire year, the rain falls for 143.2 days and collects up to 23.11" (587mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Savoy, during December, snow falls for 6.8 days and regularly aggregates up to 1.69" (43mm) of snow. In Savoy, during the entire year, snow falls for 30.6 days and aggregates up to 8.54" (217mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 6:56 am and sunset at 4:28 pm. On the last day of December, sunrise is at 7:14 am and sunset at 4:37 pm CST.
Sunshine
The average sunshine in December is 4.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Savoy. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: An average UV index of 2 in December transforms into this advice:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Minimize direct exposure to the Sun during midday when its radiation is at its peak. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
How cold does it get in Savoy in December?
What is the average humidity in December in Savoy?
How many days does it rain in December in Savoy?
How many days does it snow in December in Savoy?
What is the month with the shortest days in Savoy?
What is the average length of the day in December in Savoy?
What time are sunrise and sunset in December in Savoy?
How many hours of sunshine does Savoy have in December?
When is the lowest UV index in Savoy?
How high is the UV index in December in Savoy?
Average temperature in December
Savoy, IL
- Average high temperature in December: 37.8°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 (32.2°F).
- Average low temperature in December: 27.7°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Savoy, IL
- 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 (29.92"Hg).
Average wind speed in December
Savoy, IL
- Average wind speed in December: 10.2mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.4mph).
Average humidity in December
Savoy, 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 (70%).
Average rainfall in December
Savoy, IL
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is September (1.18").
Average rainfall days in December
Savoy, IL
- Average rainfall days in December: 8.1 days
The months with the highest number of rainy days are May and July (16.8 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in December
Savoy, IL
- Average snowfall in December: 1.69"
The month with the highest snowfall is February (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Savoy, IL
- Average snowfall days in December: 6.8 days
The month with the highest number of snowfall days is January (9.4 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
Savoy, 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 24min).
- Average sunshine in December: 4h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Savoy, IL
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in December
Savoy, 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
Savoy, IL
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are June, August and September (Cloud cover 32).
Average visibility in December
Savoy, 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).
Savoy, Illinois, USA
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