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 decrease in the average high-temperature is observed during December, shifting from an icy 37.6°F (3.1°C) in November to a freezing cold 25.3°F (-3.7°C). Sand Bay, in December, logs an average low-temperature of 18°F (-7.8°C), a subtle step down from daytime readings.Humidity
In December, the average relative humidity is 87%.Rainfall
In Sand Bay, in December, during 5.8 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. In Sand Bay, during the entire year, the rain falls for 127.9 days and collects up to 22.56" (573mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Sand Bay, in December, snow falls for 20.4 days, with typically accumulated 6.81" (173mm) of snow. In Sand Bay, during the entire year, snow falls for 95.5 days and aggregates up to 33.54" (852mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 36min of daylight.On the first day of the month, sunrise is at 7:29 am and sunset at 4:16 pm. On the last day of December, sunrise is at 7:49 am and sunset at 4:24 pm CST.
Sunshine
In Sand Bay, the average sunshine in December is 2.6h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the maximum UV index of 1 translates into these guidelines:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
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 Sand Bay have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Sand Bay have in December?
What is the month with the lowest UV index in Sand Bay?
What is the UV index intensity in December?
Average temperature in December
Sand Bay, WI
- Average high temperature in December: 25.3°F
The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (20.3°F).
- Average low temperature in December: 18°F
The month with the highest average low temperature is August (57.9°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in December
Sand Bay, WI
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Sand Bay, WI
- Average wind speed in December: 10.6mph
The windiest months (with the highest average wind speed) are January and December (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity in December
Sand Bay, WI
- Average humidity in December: 87%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is May (75%).
Average rainfall in December
Sand Bay, WI
- Average rainfall in December: 1.73"
The wettest months (with the highest rainfall) are May and July (2.56").
The driest months (with the least rainfall) are January and February (1.06").
Average rainfall days in December
Sand Bay, WI
- Average rainfall days in December: 5.8 days
The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in December
Sand Bay, WI
- Average snowfall in December: 6.81"
The month with the highest snowfall is January (6.85").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Sand Bay, WI
- Average snowfall days in December: 20.4 days
The month with the highest number of snowfall days is January (22.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sand Bay, WI
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 2h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in December
Sand Bay, WI
- Average sunshine days in December: 8.7 days
The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is December (8.7 days).
Average UV index in December
Sand Bay, 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, November and December (UV index 1).
Average cloud cover in December
Sand Bay, WI
- Average cloud cover in December: 74
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Sand Bay, WI
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Sand Bay, Wisconsin, USA
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