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
December involves a decrease in temperature, down from a chilly 44.4°F (6.9°C) in November to a wintry 32.5°F (0.3°C). Salem witnesses an average low-temperature of 22.8°F (-5.1°C) throughout the month of December.Humidity
In December, the average relative humidity in Salem is 82%.Rainfall
December is the month with the least rainfall. Rain falls for 6 days and accumulates 1.06" (27mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Salem, during December, snow falls for 7.8 days and regularly aggregates up to 2.28" (58mm) of snow. Throughout the year, there are 38.2 snowfall days, and 15.59" (396mm) of snow is accumulated.Daylight
December has the shortest days of the year in Salem, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:03 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:29 pm CST.
Sunshine
The average sunshine in December is 3.9h.UV index
The months with the lowest UV index in Salem, Wisconsin, are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 1 in December translates into these instructions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Salem in December?
What is the average humidity in December in Salem?
What is the driest month in Salem?
How much does it rain in Salem in December?
How much does it snow in Salem in December?
What is the month with the shortest days in Salem?
What is the average length of the day in December in Salem?
When is the sunrise / sunset in December in Salem?
How long on average sun shines in December in Salem?
What is the month with the lowest UV index in Salem?
What is the UV index reading in December in Salem?
Average temperature in December
Salem, WI
- Average high temperature in December: 32.5°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (26.2°F).
- Average low temperature in December: 22.8°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in December
Salem, WI
- Average pressure in December: 30.09"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Salem, WI
- Average wind speed in December: 9.6mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in December
Salem, WI
- Average humidity in December: 82%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall in December
Salem, WI
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is December (1.06").
Average rainfall days in December
Salem, WI
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in December
Salem, WI
- Average snowfall in December: 2.28"
The month with the highest snowfall is January (4.33").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Salem, WI
- Average snowfall days in December: 7.8 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Salem, 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 months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The months with the least sunshine are January and February (Average sunshine: 3h and 36min).
Average sunshine days in December
Salem, WI
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in December
Salem, 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 and December (UV index 1).
Average cloud cover in December
Salem, WI
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July, August and September (Cloud cover 32).
Average visibility in December
Salem, 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).
Salem, Wisconsin, USA
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