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
A clear decrease in the average high-temperature is observed during December, decreasing from a cold 41.9°F (5.5°C) in November to a freezing cold 26.6°F (-3°C). In Saint Clair, the December nights cool down to an average low of 15.4°F (-9.2°C).Humidity
In Saint Clair, Minnesota, the average relative humidity in December is 87%.Rainfall
In December, the rain falls for 3 days. Throughout December, 0.63" (16mm) of precipitation is accumulated. In Saint Clair, during the entire year, the rain falls for 97.8 days and collects up to 14.21" (361mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In December, it is snowing for 10.2 days. Throughout December, 2.09" (53mm) of snow is accumulated. Throughout the year, there are 44.9 snowfall days, and 12.72" (323mm) of snow is accumulated.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:31 am and sunset at 4:38 pm. On the last day of December, sunrise is at 7:50 am and sunset at 4:47 pm CST.
Sunshine
The average sunshine in December is 3.7h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 1 in December leads to these guidelines:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Saint Clair have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Saint Clair, MN
- Average high temperature in December: 26.6°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in December: 15.4°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in December
Saint Clair, MN
- Average pressure in December: 30.11"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Saint Clair, MN
- Average wind speed in December: 9mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in December
Saint Clair, MN
- Average humidity in December: 87%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Saint Clair, MN
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is June (2.48").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in December
Saint Clair, MN
- Average rainfall days in December: 3 days
The month with the highest number of rainy days is June (14.7 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in December
Saint Clair, MN
- Average snowfall in December: 2.09"
The month with the highest snowfall is February (3.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Saint Clair, MN
- Average snowfall days in December: 10.2 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Saint Clair, MN
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in December
Saint Clair, MN
- Average sunshine days in December: 19.8 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (13.6 days).
Average UV index in December
Saint Clair, MN
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Saint Clair, MN
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in December
Saint Clair, MN
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Saint Clair, Minnesota, USA
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