December weather forecastMarion, IN
December
Weather in December
Closing the year with frosty days and icy nights, December in Marion, Indiana, presents winter in its full swing. Evidence of winter conditions is clear with an average of 0.87" (22mm) of snowfall. With a relatively high percentage of cloudy days, December is characterized by winter grays and whites. Despite the drop in temperatures, the holiday spirit of the city shimmers through the frosty days and colder nights. To sum it up, December is all about embracing the cold and participating in winter festivities under a snowy panorama.Temperature
As December commences, the average high-temperature shows a reduction, transitioning from a chilly 48.2°F (9°C) in November to a wintry 37.2°F (2.9°C). Marion's average low-temperature during December nights is observed to be a freezing cold 27.3°F (-2.6°C).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 83%.Rainfall
In Marion, in December, it is raining for 6.2 days, with typically 0.83" (21mm) of accumulated precipitation. In Marion, during the entire year, the rain falls for 123.4 days and collects up to 12.64" (321mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In December, it is snowing for 6.5 days. Throughout December, 0.87" (22mm) of snow is accumulated. In Marion, during the entire year, snow falls for 32.4 days and aggregates up to 4.41" (112mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:47 am and sunset at 5:16 pm. On the last day of December, sunrise is at 8:06 am and sunset at 5:25 pm EST.
Sunshine
In December, the average sunshine in Marion, Indiana, is 3.9h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 1 in December translates into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Experience reduced UV exposure by about half when donning a wide-brim hat. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Marion, IN
- Average high temperature in December: 37.2°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Marion, IN
- Average pressure in December: 30.11"Hg
The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Marion, IN
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in December
Marion, IN
- Average humidity in December: 83%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Marion, IN
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is May (1.69").
The driest month (with the least rainfall) is February (0.63").
Average rainfall days in December
Marion, IN
- Average rainfall days in December: 6.2 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in December
Marion, IN
- Average snowfall in December: 0.87"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Marion, IN
- Average snowfall days in December: 6.5 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Marion, IN
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 3h and 54min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Marion, IN
- Average sunshine days in December: 18.9 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in December
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
Marion, IN
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are June, July and August (Cloud cover 34).
Average visibility in December
Marion, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
