December weather forecastIndian Spring, IL
December
Weather in December
The first month of the winter, December, is also an icy month in Indian Spring, Illinois, with an average temperature fluctuating between 25.3°F (-3.7°C) and 35.6°F (2°C).Temperature
Stepping into December, Indian Spring observes a temperature decline, with the average high falling from November's chilly 47.3°F (8.5°C) to a wintry 35.6°F (2°C). Throughout December, Indian Spring witnesses a consistent average low-temperature of 25.3°F (-3.7°C).Humidity
The average relative humidity in December is 81%.Rainfall
January and December are months with the least rain when the rain falls for 7.5 days and typically aggregates up to 1.57" (40mm) of rain.Snowfall
January through April, October through December are months with snowfall. In Indian Spring, in December, during 7 snowfall days, 2.28" (58mm) of snow is typically accumulated. Throughout the year, there are 36.7 snowfall days, and 14.09" (358mm) 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 7:04 am and sunset at 4:29 pm. On the last day of December, in Indian Spring, sunrise is at 7:22 am and sunset at 4:38 pm CST.
Sunshine
The average sunshine in December in Indian Spring is 4.2h.UV index
In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 2 in December transforms into this advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Indian Spring, IL
- Average high temperature in December: 35.6°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in December: 25.3°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 (17.4°F).
Average pressure in December
Indian Spring, IL
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Indian Spring, IL
- Average wind speed in December: 9.7mph
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
Indian Spring, IL
- Average humidity in December: 81%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Indian Spring, IL
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (4.41").
The driest months (with the least rainfall) are January and December (1.57").
Average rainfall days in December
Indian Spring, IL
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in December
Indian Spring, IL
- Average snowfall in December: 2.28"
The month with the highest snowfall is February (3.7").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Indian Spring, IL
- Average snowfall days in December: 7 days
The month with the highest number of snowfall days is January (11.2 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
Indian Spring, IL
- Average daylight in December: 9h and 18min
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 12min
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 54min).
Average sunshine days in December
Indian Spring, IL
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in December
Indian Spring, IL
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Indian Spring, IL
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in December
Indian Spring, IL
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
