December weather forecastNew Marion, IN
December
Weather in December
December, the first month of the winter in New Marion, is also a wintry month, with an average temperature fluctuating between 40.8°F (4.9°C) and 30°F (-1.1°C).Temperature
As December begins, there is a decrease in the average high-temperature, falling from a cool 51.1°F (10.6°C) in November to a cold 40.8°F (4.9°C). In December, New Marion's temperature tends to fall to an average low of 30°F (-1.1°C) during the night.Humidity
The most humid month in New Marion is December, with an average relative humidity of 82%.Rainfall
In New Marion, in December, during 11.9 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. Throughout the year, in New Marion, there are 178.1 rainfall days, and 38.82" (986mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In New Marion, Indiana, in December, snow falls for 8.7 days, with typically accumulated 2.44" (62mm) of snow. Throughout the year, there are 38.3 snowfall days, and 13.11" (333mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:41 am and sunset at 5:19 pm. On the last day of December, sunrise is at 8:00 am and sunset at 5:29 pm EST.
Sunshine
The average sunshine in December in New Marion is 4.1h.UV index
The month with the lowest UV index in New Marion, Indiana, is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
New Marion, IN
- Average high temperature in December: 40.8°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in December: 30°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in December
New Marion, IN
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
New Marion, IN
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in December
New Marion, IN
- Average humidity in December: 82%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
New Marion, IN
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is April (4.41").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in December
New Marion, IN
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is May (21.4 days).
The month with the least rainy days is February (10.5 days).
Average snowfall in December
New Marion, IN
- Average snowfall in December: 2.44"
The month with the highest snowfall is January (3.35").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
New Marion, IN
- Average snowfall days in December: 8.7 days
The month with the highest number of snowfall days is January (10.3 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
New Marion, IN
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
New Marion, IN
- Average sunshine days in December: 12.4 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is May (7 days).
Average UV index in December
New Marion, IN
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
New Marion, IN
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
New Marion, IN
- Average visibility in December: 5mi
The months with the highest visibility are March, April, June, August, October and November (6mi).
The months with the lowest visibility are January, February, May, July, September and December (5mi).





