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
The coldest month is December, with an average high-temperature of 39.4°F (4.1°C) and an average low-temperature of 20.7°F (-6.3°C).Humidity
The average relative humidity in December in Superior is 62%.Rainfall
In Superior, in December, it is raining for 5 days, with typically 0.2" (5mm) of accumulated precipitation. Throughout the year, in Superior, there are 96.7 rainfall days, and 5.63" (143mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Superior, Colorado, during December, snow falls for 5.6 days and regularly aggregates up to 1.34" (34mm) of snow. In Superior, during the entire year, snow falls for 36.7 days and aggregates up to 13.98" (355mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Superior, Colorado.On the first day of the month, sunrise is at 7:03 am and sunset at 4:36 pm. On the last day of December, in Superior, sunrise is at 7:22 am and sunset at 4:45 pm MST.
Sunshine
In Superior, the average sunshine in December is 7h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 2 during December, leads to the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
What is the coldest time of year in Superior?
How cold does it get in Superior in December?
What is the average humidity in December in Superior?
How many days does it rain in December in Superior?
How many days does it snow in December in Superior?
What is the month with the shortest days in Superior?
What is the average length of the day in December in Superior?
When is the sunrise / sunset in December in Superior?
How many hours of sunshine does Superior have in December?
What are the months with the lowest UV index in Superior?
What is the UV index reading in December in Superior?
Average temperature in December
Superior, CO
- Average high temperature in December: 39.4°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (39.4°F).
- Average low temperature in December: 20.7°F
The month with the highest average low temperature is July (59°F).
The coldest months (with the lowest average low temperature) are February and December (20.7°F).
Average pressure in December
Superior, CO
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are April and June (29.91"Hg).
Average wind speed in December
Superior, CO
- Average wind speed in December: 6mph
The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest month (with the lowest average wind speed) is September (5.6mph).
Average humidity in December
Superior, CO
- Average humidity in December: 62%
The month with the highest relative humidity is February (67%).
The month with the lowest relative humidity is August (41%).
Average rainfall in December
Superior, CO
- Average rainfall in December: 0.2"
The wettest months (with the highest rainfall) are May and July (0.87").
The driest month (with the least rainfall) is January (0.16").
Average rainfall days in December
Superior, CO
- Average rainfall days in December: 5 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is November (3.5 days).
Average snowfall in December
Superior, CO
- Average snowfall in December: 1.34"
The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Superior, CO
- Average snowfall days in December: 5.6 days
The month with the highest number of snowfall days is February (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Superior, CO
- Average daylight in December: 9h and 2min
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 24min).
- Average sunshine in December: 7h and 0min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in December
Superior, CO
- Average sunshine days in December: 22.5 days
The month with the most sunshine days is November (23.7 days).
The month with the least sunshine days is July (10 days).
Average UV index in December
Superior, CO
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Superior, CO
- Average cloud cover in December: 22
The months with the most cloud cover are April and May (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 15).
Average visibility in December
Superior, CO
- 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).
Superior, Colorado, USA
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