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 onset of December entails a temperature shift, as the average high-temperature decreases from a chilly 42.8°F (6°C) in November to a freezing cold 30.4°F (-0.9°C). During the month of December, an average temperature of 20.5°F (-6.4°C) is noted during the nights.Humidity
The average relative humidity in December in Deerfield is 84%.Rainfall
In Deerfield, Wisconsin, during December, the rain falls for 5.7 days and regularly aggregates up to 1.22" (31mm) of precipitation. Throughout the year, in Deerfield, Wisconsin, there are 134.9 rainfall days, and 26.34" (669mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Deerfield. In Deerfield, during December, snow falls for 8.9 days and regularly aggregates up to 2.8" (71mm) of snow. In Deerfield, Wisconsin, during the entire year, snow falls for 45 days and aggregates up to 18.19" (462mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:08 am and sunset at 4:22 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:31 pm CST.
Sunshine
The average sunshine in December in Deerfield, Wisconsin, is 3.8h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Deerfield, Wisconsin. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 1 suggests this advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
How cold is it in Deerfield in December?
What is the average humidity in December in Deerfield?
How many days does it rain in December in Deerfield?
How much does it snow in Deerfield in December?
What is the month with the shortest days in Deerfield?
What is the average length of the day in December in Deerfield?
When is the sunrise / sunset in December in Deerfield?
How long on average sun shines in December in Deerfield?
What are the months with the lowest UV index in Deerfield?
What is the UV index reading in December in Deerfield?
Average temperature in December
Deerfield, WI
- Average high temperature in December: 30.4°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (24.1°F).
- Average low temperature in December: 20.5°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in December
Deerfield, WI
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Deerfield, WI
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Deerfield, WI
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Deerfield, WI
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is June (3.5").
The driest months (with the least rainfall) are January and February (1.1").
Average rainfall days in December
Deerfield, WI
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (4 days).
Average snowfall in December
Deerfield, WI
- Average snowfall in December: 2.8"
The month with the highest snowfall is January (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Deerfield, WI
- Average snowfall days in December: 8.9 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Deerfield, 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: 3h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Deerfield, WI
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is December (17.5 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in December
Deerfield, WI
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Deerfield, WI
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Deerfield, WI
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Deerfield, Wisconsin, USA
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