December weather forecastCassils, Canada
December
Weather in December
December, the first month of the winter in Cassils, is also a subzero cold month, with an average temperature fluctuating between -4.3°C (24.3°F) and -10.8°C (12.6°F).Temperature
In Cassils, December records the lowest average temperatures, peaking at -4.3°C (24.3°F) and reaching a low of -10.8°C (12.6°F).Humidity
December is the most humid month in Cassils, with an average relative humidity of 85%.Rainfall
In Cassils, in December, it is raining for 2.5 days, with typically 7mm (0.28") of accumulated precipitation. In Cassils, during the entire year, the rain falls for 90.9 days and collects up to 243mm (9.57") of precipitation.Snowfall
Months with snowfall are January through May, September through December. In Cassils, in December, snow falls for 9 days, with typically accumulated 41mm (1.61") of snow. Throughout the year, in Cassils, Canada, there are 50.5 snowfall days, and 397mm (15.63") of snow is accumulated.Daylight
With an average of 8h and 6min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 8:08 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 8:29 am and sunset at 4:33 pm MST.
Sunshine
February and December, with an average of 4.7h of sunshine, are months with the least sunshine.UV index
In December, the average daily maximum UV index in Cassils is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cassils, Canada
- Average high temperature in December: -4.3°C
The warmest month (with the highest average high temperature) is July (26.6°C).
The month with the lowest average high temperature is December (-4.3°C).
- Average low temperature in December: -10.8°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is February (-11.2°C).
Average pressure in December
Cassils, Canada
- Average pressure in December: 1019.2mbar
The month with the highest atmospheric pressure is February (1020mbar).
The month with the lowest atmospheric pressure is June (1010.1mbar).
Average wind speed in December
Cassils, Canada
- Average wind speed in December: 15.4km/h
The windiest month (with the highest average wind speed) is January (16.5km/h).
The calmest month (with the lowest average wind speed) is August (13.2km/h).
Average humidity in December
Cassils, Canada
- Average humidity in December: 85%
The month with the highest relative humidity is December (85%).
The month with the lowest relative humidity is August (46%).
Average rainfall in December
Cassils, Canada
- Average rainfall in December: 7mm
The wettest month (with the highest rainfall) is June (59mm).
The driest month (with the least rainfall) is January (6mm).
Average rainfall days in December
Cassils, Canada
- Average rainfall days in December: 2.5 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in December
Cassils, Canada
- Average snowfall in December: 41mm
The month with the highest snowfall is November (74mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in December
Cassils, Canada
- Average snowfall days in December: 9 days
The month with the highest number of snowfall days is December (9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Cassils, Canada
- Average daylight in December: 8h and 6min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in December: 4h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).
Average sunshine days in December
Cassils, Canada
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is January (22 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in December
Cassils, Canada
- 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 February (UV index 1).
Average cloud cover in December
Cassils, Canada
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in December
Cassils, Canada
- Average visibility in December: 9km
The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (9km).





