Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December is the coldest month, with the temperature often reaching an average high of 28.9°F (-1.7°C) and an average low of 16.3°F (-8.7°C).Humidity
In Portage, the average relative humidity in December is 85%.Rainfall
In Portage, in December, it is raining for 8.1 days, with typically 1.5" (38mm) of accumulated precipitation. Throughout the year, there are 118.3 rainfall days, and 16.42" (417mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In December, it is snowing for 15.6 days. Throughout December, 9.88" (251mm) of snow is accumulated. In Portage, during the entire year, snow falls for 68.7 days and aggregates up to 48.82" (1240mm) 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 7:38 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 5:07 pm MST.
Sunshine
In December, the average sunshine is 5h.UV index
In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. On your guard! Snow's reflection 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
What is the coldest time of year?
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the UV index intensity in December?
Average temperature in December
Portage, UT
- Average high temperature in December: 28.9°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is December (28.9°F).
- Average low temperature in December: 16.3°F
The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in December
Portage, UT
- Average pressure in December: 30.25"Hg
The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Portage, UT
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).
Average humidity in December
Portage, UT
- Average humidity in December: 85%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (35%).
Average rainfall in December
Portage, UT
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is February (2.05").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days in December
Portage, UT
- Average rainfall days in December: 8.1 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in December
Portage, UT
- Average snowfall in December: 9.88"
The month with the highest snowfall is January (13.78").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Portage, UT
- Average snowfall days in December: 15.6 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Portage, UT
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 5h and 0min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Portage, UT
- Average sunshine days in December: 13.2 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is February (9.9 days).
Average UV index in December
Portage, UT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Portage, UT
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in December
Portage, UT
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
Portage, Utah, USA
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