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
Mount Erie observes a minor decrease in the average high-temperature with the arrival of December, falling from November's cool 52.9°F (11.6°C) to a frosty 43.2°F (6.2°C). Mount Erie experiences an average low-temperature reading of 31.1°F (-0.5°C) throughout December.Humidity
In December, the average relative humidity in Mount Erie, Illinois, is 78%.Rainfall
In December, in Mount Erie, the rain falls for 10.9 days. Throughout December, 2.68" (68mm) of precipitation is accumulated. In Mount Erie, during the entire year, the rain falls for 166.4 days and collects up to 37.32" (948mm) of precipitation.Snowfall
Months with snowfall in Mount Erie, Illinois, are January through April, November and December. In Mount Erie, in December, snow falls for 4.1 days, with typically accumulated 1.42" (36mm) of snow. Throughout the year, there are 21.2 snowfall days, and 6.97" (177mm) of snow is accumulated.Daylight
The month with the shortest days in Mount Erie is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 6:52 am and sunset at 4:32 pm. On the last day of December, in Mount Erie, sunrise is at 7:10 am and sunset at 4:42 pm CST.
Sunshine
In December, the average sunshine 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 Mount Erie. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
How cold is December in Mount Erie?
What is the average humidity in December in Mount Erie?
How much does it rain in Mount Erie in December?
How many days does it snow in December in Mount Erie?
What is the month with the shortest days in Mount Erie?
What is the average length of the day in December in Mount Erie?
When are sunrise and sunset in December in Mount Erie?
How many hours of sunshine does Mount Erie have in December?
What are the months with the lowest UV index in Mount Erie?
How high is the UV index in December in Mount Erie?
Average temperature in December
Mount Erie, 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
Mount Erie, 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
Mount Erie, 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
Mount Erie, 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
Mount Erie, 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
Mount Erie, 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
Mount Erie, 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
Mount Erie, 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
Mount Erie, IL
- Average daylight in December: 9h and 3min
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 30min).
- 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
Mount Erie, 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
Mount Erie, 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
Mount Erie, 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
Mount Erie, 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).
Mount Erie, Illinois, USA
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