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
Start of December brings a shift in the average high-temperature, falling from November's cold 38.1°F (3.4°C) to a subzero cold 23.9°F (-4.5°C). During December, Saint Croix Falls records a consistent average nighttime temperature of 13.1°F (-10.5°C).Humidity
In Saint Croix Falls, the average relative humidity in December is 90%.Rainfall
In December, the rain falls for 4.6 days. Throughout December, 1.34" (34mm) of precipitation is accumulated. Throughout the year, there are 130.2 rainfall days, and 23.19" (589mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 14.6 days and typically aggregates up to 4.8" (122mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:30 am and sunset at 4:29 pm. On the last day of December, in Saint Croix Falls, sunrise is at 7:50 am and sunset at 4:37 pm CST.
Sunshine
In Saint Croix Falls, Wisconsin, the average sunshine in December is 3h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 1 during December morphs into the following directions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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 much does it rain in December?
What is the snowiest month?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Saint Croix Falls have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Saint Croix Falls have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Saint Croix Falls, WI
- Average high temperature in December: 23.9°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (18.3°F).
- Average low temperature in December: 13.1°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (5.2°F).
Average pressure in December
Saint Croix Falls, WI
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Saint Croix Falls, WI
- Average wind speed in December: 8.7mph
The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in December
Saint Croix Falls, WI
- Average humidity in December: 90%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Saint Croix Falls, WI
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in December
Saint Croix Falls, WI
- Average rainfall days in December: 4.6 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (3.2 days).
Average snowfall in December
Saint Croix Falls, WI
- Average snowfall in December: 4.8"
The month with the highest snowfall is December (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Saint Croix Falls, WI
- Average snowfall days in December: 14.6 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Saint Croix Falls, WI
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Saint Croix Falls, WI
- Average sunshine days in December: 14.3 days
The month with the most sunshine days is October (16.1 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in December
Saint Croix Falls, 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
Saint Croix Falls, WI
- Average cloud cover in December: 68
The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in December
Saint Croix Falls, WI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Saint Croix Falls, Wisconsin, USA
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