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
A subtle decrease in the average high-temperature marks December in Brookfield, falling from November's frosty 43.5°F (6.4°C) to an icy 32°F (0°C). The low temperature average during December reflects a slight decrease to a subzero cold 23°F (-5°C) from the day's peak.Humidity
The average relative humidity in December is 82%.Rainfall
The month with the least rainfall in Brookfield is December, when the rain falls for 5.4 days and typically collects 0.75" (19mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Brookfield, during December, snow falls for 10.2 days and regularly aggregates up to 1.77" (45mm) of snow. Throughout the year, there are 47.4 snowfall days, and 12.48" (317mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:04 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:27 pm CST.
Sunshine
The average sunshine in December in Brookfield is 4h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
How cold is it in Brookfield in December?
What is the average humidity in December in Brookfield?
What is the driest month in Brookfield?
How many days does it rain in December in Brookfield?
How many days does it snow in December in Brookfield?
What is the month with the shortest days in Brookfield?
How many hours of daylight does Brookfield have in December?
When is the sunrise / sunset in December in Brookfield?
How long on average sun shines in December in Brookfield?
What are the months with the lowest UV index in Brookfield?
What is the UV index reading in December in Brookfield?
Average temperature in December
Brookfield, WI
- Average high temperature in December: 32°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (25.3°F).
- Average low temperature in December: 23°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in December
Brookfield, WI
- Average pressure in December: 30.08"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Brookfield, WI
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity in December
Brookfield, WI
- Average humidity in December: 82%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April, October and November (76%).
Average rainfall in December
Brookfield, WI
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is July (2.6").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in December
Brookfield, WI
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in December
Brookfield, WI
- Average snowfall in December: 1.77"
The month with the highest snowfall is January (3.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Brookfield, WI
- Average snowfall days in December: 10.2 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Brookfield, WI
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Brookfield, WI
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is July (12.1 days).
Average UV index in December
Brookfield, 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 and December (UV index 1).
Average cloud cover in December
Brookfield, WI
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Brookfield, WI
- 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).
Brookfield, Wisconsin, USA
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