December weather forecastPortage, IN
December
Weather in December
December welcomes winter back to Portage, Indiana, as temperatures drop distinctly below those of the previous month. The winter chill is accompanied by increased cloud cover and shortened sunlight hours, establishing a winter weather pattern. Residents often find themselves battling gusty winds while pursuing holiday activities. Among winters significant features, snowfall makes a return marking December as the start of winter once again. Considerably, snowfall drifts start with an average of 2.05" (52mm) across the city.Temperature
December's arrival comes with a decrease in the average high-temperature, moving from a chilly 46.8°F (8.2°C) in November to a wintry 36.1°F (2.3°C). During December's nights, Portage notes a minor temperature decline, reaching an average of 27.5°F (-2.5°C).Humidity
The average relative humidity in December is 81%.Rainfall
In Portage, during December, the rain falls for 9.6 days and regularly aggregates up to 1.22" (31mm) of precipitation. In Portage, during the entire year, the rain falls for 157.4 days and collects up to 23.9" (607mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Portage, in December, snow falls for 10.4 days, with typically accumulated 2.05" (52mm) of snow. In Portage, during the entire year, snow falls for 47 days and aggregates up to 10.75" (273mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:56 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:28 pm CST.
Sunshine
In December, the average sunshine 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 value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 1 transforms into these recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Avoiding the Sun during its peak radiation time around midday is a healthy practice. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Portage, IN
- Average high temperature in December: 36.1°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Portage, IN
- Average pressure in December: 30.09"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
Portage, IN
- Average wind speed in December: 10.7mph
The windiest month (with the highest average wind speed) is January (11.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in December
Portage, IN
- Average humidity in December: 81%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Portage, IN
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days in December
Portage, IN
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in December
Portage, IN
- Average snowfall in December: 2.05"
The month with the highest snowfall is January (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Portage, IN
- Average snowfall days in December: 10.4 days
The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Portage, 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: 3h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Portage, IN
- Average sunshine days in December: 13.2 days
The month with the most sunshine days is November (15.7 days).
The months with the least sunshine days are June and August (10.4 days).
Average UV index in December
Portage, IN
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Portage, IN
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Portage, IN
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
