December weather forecastSlave Lake, Canada
December
Weather in December
December, the first month of the winter in Slave Lake, is also a subzero cold month, with temperature in the range of an average high of -8.5°C (16.7°F) and an average low of -14.4°C (6.1°F).Temperature
With average high temperatures of -8.5°C (16.7°F) and lows of -14.4°C (6.1°F), December is the coldest month.Humidity
In December, the average relative humidity in Slave Lake, Canada, is 90%.Rainfall
December is the month with the least rainfall in Slave Lake. Rain falls for 3.5 days and accumulates 18mm (0.71") of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Slave Lake, in December, snow falls for 18.2 days, with typically accumulated 136mm (5.35") of snow. Throughout the year, in Slave Lake, there are 114.3 snowfall days, and 1073mm (42.24") of snow is accumulated.Daylight
December has the shortest days of the year in Slave Lake, with an average of 7h and 12min of daylight.On the first day of the month, sunrise is at 8:42 am and sunset at 4:13 pm. On the last day of December, in Slave Lake, sunrise is at 9:05 am and sunset at 4:19 pm MST.
Sunshine
The month with the least sunshine in Slave Lake is December, with an average of 3.2h of sunshine.UV index
January through March, October and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 1 during December translates into the following directions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Slave Lake, Canada
- Average high temperature in December: -8.5°C
The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is December (-8.5°C).
- Average low temperature in December: -14.4°C
The month with the highest average low temperature is July (9.9°C).
The coldest month (with the lowest average low temperature) is February (-15.1°C).
Average pressure in December
Slave Lake, Canada
- Average pressure in December: 1018.5mbar
The month with the highest atmospheric pressure is February (1019.9mbar).
The month with the lowest atmospheric pressure is June (1010.1mbar).
Average wind speed in December
Slave Lake, Canada
- Average wind speed in December: 11.5km/h
The windiest month (with the highest average wind speed) is October (12.2km/h).
The calmest month (with the lowest average wind speed) is July (10.5km/h).
Average humidity in December
Slave Lake, Canada
- Average humidity in December: 90%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is May (61%).
Average rainfall in December
Slave Lake, Canada
- Average rainfall in December: 18mm
The wettest month (with the highest rainfall) is June (71mm).
The driest month (with the least rainfall) is December (18mm).
Average rainfall days in December
Slave Lake, Canada
- Average rainfall days in December: 3.5 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in December
Slave Lake, Canada
- Average snowfall in December: 136mm
The month with the highest snowfall is March (173mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Slave Lake, Canada
- Average snowfall days in December: 18.2 days
The month with the highest number of snowfall days is March (19.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Slave Lake, Canada
- Average daylight in December: 7h and 12min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in December: 3h and 12min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in December
Slave Lake, Canada
- Average sunshine days in December: 12.7 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is April (8 days).
Average UV index in December
Slave Lake, Canada
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, October and December (UV index 1).
Average cloud cover in December
Slave Lake, Canada
- Average cloud cover in December: 62
The months with the most cloud cover are February and March (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Slave Lake, Canada
- Average visibility in December: 7km
The months with the highest visibility are May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February and March (6km).
