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 shift into December is marked by a considerable temperature decrease, with the average high-temperature dropping from an icy 40.1°F (4.5°C) in November to a subzero cold 25°F (-3.9°C). Nighttime temperature in Plum City experiences an average drop to 14.4°F (-9.8°C) in December.Humidity
In Plum City, the average relative humidity in December is 88%.Rainfall
In Plum City, in December, during 5.3 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, there are 137.3 rainfall days, and 26.18" (665mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Plum City, during December, snow falls for 14.3 days and regularly aggregates up to 5.63" (143mm) of snow. Throughout the year, there are 67.4 snowfall days, and 26.22" (666mm) of snow is accumulated.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:26 am and sunset at 4:29 pm. On the last day of December, sunrise is at 7:45 am and sunset at 4:38 pm CST.
Sunshine
The average sunshine in December in Plum City is 3.4h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high daily UV index of 1 during December translates into the following directions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December in Plum City?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Plum City have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Plum City have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Plum City, WI
- Average high temperature in December: 25°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (19.8°F).
- Average low temperature in December: 14.4°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (6.6°F).
Average pressure in December
Plum City, WI
- Average pressure in December: 30.1"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Plum City, WI
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is April (9.2mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity in December
Plum City, WI
- Average humidity in December: 88%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and October (76%).
Average rainfall in December
Plum City, WI
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is June (4.53").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in December
Plum City, WI
- Average rainfall days in December: 5.3 days
The month with the highest number of rainy days is June (18.3 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in December
Plum City, WI
- Average snowfall in December: 5.63"
The month with the highest snowfall is February (7.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Plum City, WI
- Average snowfall days in December: 14.3 days
The month with the highest number of snowfall days is January (16.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Plum City, WI
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in December
Plum City, WI
- Average sunshine days in December: 15 days
The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is June (9.1 days).
Average UV index in December
Plum City, WI
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Plum City, WI
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Plum City, WI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).
Plum City, Wisconsin, USA
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