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 shows a mild decline in the average high-temperature, falling from November's fresh 52.9°F (11.6°C) to a frosty 43.2°F (6.2°C). Mill Shoals reports an average low-temperature of 31.1°F (-0.5°C) during the nights of December.Humidity
In December, the average relative humidity in Mill Shoals, Illinois, is 78%.Rainfall
In Mill Shoals, during December, the rain falls for 10.9 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, there are 166.4 rainfall days, and 37.32" (948mm) of precipitation is accumulated.Snowfall
Months with snowfall in Mill Shoals are January through April, November and December. In Mill Shoals, in December, snow falls for 4.1 days, with typically accumulated 1.42" (36mm) of snow. Throughout the year, in Mill Shoals, Illinois, there are 21.2 snowfall days, and 6.97" (177mm) of snow is accumulated.Daylight
December has the shortest days of the year in Mill Shoals, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 6:51 am and sunset at 4:33 pm. On the last day of December, in Mill Shoals, sunrise is at 7:09 am and sunset at 4:43 pm CST.
Sunshine
The average sunshine in December is 4.6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Mill Shoals. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
Is it cold in Mill Shoals during December?
What is the average humidity in December in Mill Shoals?
How much does it rain in Mill Shoals in December?
How much does it snow in Mill Shoals in December?
What is the month with the shortest days in Mill Shoals?
What is the average length of the day in December in Mill Shoals?
What time are sunrise and sunset in December in Mill Shoals?
How long on average sun shines in December in Mill Shoals?
What is the month with the lowest UV index in Mill Shoals?
How high is the UV index in December in Mill Shoals?
Average temperature in December
Mill Shoals, IL
- Average high temperature in December: 43.2°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in December
Mill Shoals, IL
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Mill Shoals, IL
- Average wind speed in December: 9.1mph
The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in December
Mill Shoals, IL
- Average humidity in December: 78%
The months with the highest relative humidity are May and July (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Mill Shoals, IL
- Average rainfall in December: 2.68"
The wettest month (with the highest rainfall) is April (4.96").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in December
Mill Shoals, IL
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in December
Mill Shoals, IL
- Average snowfall in December: 1.42"
The months with the highest snowfall are January and February (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Mill Shoals, IL
- Average snowfall days in December: 4.1 days
The month with the highest number of snowfall days is January (6.7 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
Mill Shoals, IL
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Mill Shoals, IL
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is October (17.9 days).
The month with the least sunshine days is May (9 days).
Average UV index in December
Mill Shoals, IL
- 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, November and December (UV index 2).
Average cloud cover in December
Mill Shoals, IL
- Average cloud cover in December: 50
The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in December
Mill Shoals, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Mill Shoals, Illinois, USA
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