December weather forecastSpring Valley, WI
December
Weather in December
December, the first month of the winter in Spring Valley, is still a freezing cold month, with temperature in the range of an average high of 24.6°F (-4.1°C) and an average low of 14.4°F (-9.8°C).Temperature
As Spring Valley welcomes December, there is a noticeable shift in the average high-temperature, dropping from November's icy 39.7°F (4.3°C) to a freezing cold 24.6°F (-4.1°C). In December, Spring Valley experiences a temperature dip to an average of 14.4°F (-9.8°C) at night.Humidity
The average relative humidity in December is 89%.Rainfall
In Spring Valley, during December, the rain falls for 4 days and regularly aggregates up to 1.3" (33mm) of precipitation. In Spring Valley, Wisconsin, during the entire year, the rain falls for 128.4 days and collects up to 25" (635mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, in Spring Valley, it is snowing for 12.5 days. Throughout December, 4.17" (106mm) of snow is accumulated. Throughout the year, there are 61.1 snowfall days, and 22.72" (577mm) of snow is accumulated.Daylight
The month with the shortest days in Spring Valley is December, with an average of 8h and 54min of daylight.On the first day of December in Spring Valley, sunrise is at 7:27 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 4:38 pm CST.
Sunshine
The average sunshine in December is 3.3h.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 unprotected exposure to Sun's UV rays for average individuals.Note: In December, the UV index of 1 transforms into the following advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Spring Valley, WI
- Average high temperature in December: 24.6°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 (19.2°F).
- Average low temperature in December: 14.4°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (6.1°F).
Average pressure in December
Spring Valley, 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
Spring Valley, WI
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Spring Valley, WI
- Average humidity in December: 89%
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
Spring Valley, WI
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is June (4.37").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in December
Spring Valley, WI
- Average rainfall days in December: 4 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is January (2.7 days).
Average snowfall in December
Spring Valley, WI
- Average snowfall in December: 4.17"
The month with the highest snowfall is February (6.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Spring Valley, WI
- Average snowfall days in December: 12.5 days
The month with the highest number of snowfall days is January (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Spring Valley, WI
- Average daylight in December: 8h and 54min
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 18min
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 0min).
Average sunshine days in December
Spring Valley, WI
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is December (17.2 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in December
Spring Valley, 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
Spring Valley, WI
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in December
Spring Valley, WI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, October and November (6mi).
The month with the lowest visibility is January (4mi).
