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
The average high-temperature decreases in December, shifting from a fresh 54.9°F (12.7°C) in November to a chilly 45.5°F (7.5°C). An average nighttime temperature of 33.3°F (0.7°C) is recorded in Metropolis during December.Humidity
In December, the average relative humidity in Metropolis is 78%.Rainfall
In Metropolis, during December, the rain falls for 11.5 days and regularly aggregates up to 3.03" (77mm) of precipitation. In Metropolis, during the entire year, the rain falls for 160.7 days and collects up to 36.73" (933mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Metropolis, Illinois, during December, snow falls for 2 days and regularly aggregates up to 0.47" (12mm) of snow. In Metropolis, during the entire year, snow falls for 12.9 days and aggregates up to 4.33" (110mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 6:50 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:08 am and sunset at 4:48 pm CST.
Sunshine
The average sunshine in December is 4.9h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What are the temperatures in Metropolis in December?
What is the average humidity in December in Metropolis?
How many days does it rain in December in Metropolis?
How much does it snow in Metropolis in December?
What is the month with the shortest days in Metropolis?
What is the average length of the day in December in Metropolis?
When are sunrise and sunset in December in Metropolis?
How long on average sun shines in December in Metropolis?
What is the month with the lowest UV index in Metropolis?
What is the UV index reading in December in Metropolis?
Average temperature in December
Metropolis, IL
- Average high temperature in December: 45.5°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41.4°F).
- Average low temperature in December: 33.3°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28°F).
Average pressure in December
Metropolis, IL
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Metropolis, IL
- Average wind speed in December: 8.3mph
The windiest months (with the highest average wind speed) are January, March and April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in December
Metropolis, IL
- Average humidity in December: 78%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Metropolis, IL
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is April (4.29").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in December
Metropolis, IL
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is October (10.2 days).
Average snowfall in December
Metropolis, IL
- Average snowfall in December: 0.47"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Metropolis, IL
- Average snowfall days in December: 2 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Metropolis, IL
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 4h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Metropolis, IL
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is May (11 days).
Average UV index in December
Metropolis, 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 and December (UV index 2).
Average cloud cover in December
Metropolis, IL
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 26).
Average visibility in December
Metropolis, 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).
Metropolis, Illinois, USA
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