December weather forecastMunster, IN
December
Weather in December
The first month of the winter, December, is also a wintry month in Munster, Indiana, with an average temperature varying between 36°F (2.2°C) and 26.6°F (-3°C).Temperature
December's onset brings a slight change in high-temperatures, falling from a chilly 46.9°F (8.3°C) in November to a wintry 36°F (2.2°C). An average low-temperature of 26.6°F (-3°C) is observed during December nights.Humidity
The average relative humidity in December is 80%.Rainfall
In Munster, in December, during 7.6 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. Throughout the year, there are 150.7 rainfall days, and 25.31" (643mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Munster, Indiana, during December, snow falls for 9.6 days and regularly aggregates up to 2.44" (62mm) of snow. In Munster, during the entire year, snow falls for 45.3 days and aggregates up to 14.02" (356mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 6:57 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:30 pm CST.
Sunshine
In Munster, Indiana, the average sunshine in December is 4h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 1 during December translates into the following guidance:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Munster, IN
- Average high temperature in December: 36°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in December
Munster, IN
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Munster, IN
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Munster, IN
- Average humidity in December: 80%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Munster, IN
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in December
Munster, IN
- Average rainfall days in December: 7.6 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is February (5.5 days).
Average snowfall in December
Munster, IN
- Average snowfall in December: 2.44"
The month with the highest snowfall is February (3.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Munster, IN
- Average snowfall days in December: 9.6 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Munster, IN
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Munster, IN
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in December
Munster, IN
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Munster, IN
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Munster, IN
- 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).
