December weather forecastNew Munster, WI
December
Weather in December
December, the first month of the winter in New Munster, is still a cold month, with an average temperature fluctuating between 32.5°F (0.3°C) and 22.8°F (-5.1°C).Temperature
The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a frosty 44.4°F (6.9°C) in November to a wintry 32.5°F (0.3°C). Throughout December, the nighttime temperature averages to a freezing cold 22.8°F (-5.1°C).Humidity
In December, the average relative humidity is 82%.Rainfall
December is the month with the least rainfall. Rain falls for 6 days and accumulates 1.06" (27mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In New Munster, during December, snow falls for 7.8 days and regularly aggregates up to 2.28" (58mm) of snow. In New Munster, during the entire year, snow falls for 38.2 days and aggregates up to 15.59" (396mm) 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 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 are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 1 during December leads to these instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. 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
Average temperature in December
New Munster, 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
New Munster, 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
New Munster, 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
New Munster, 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
New Munster, 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
New Munster, 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
New Munster, 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
New Munster, 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
New Munster, WI
- Average daylight in December: 9h and 6min
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 54min
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
New Munster, 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
New Munster, 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
New Munster, 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
New Munster, 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).
