December weather forecastSioux Lookout, Canada
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Sioux Lookout, Canada, with an average temperature varying between -15.7°C (3.7°F) and -9.5°C (14.9°F).Temperature
The average high-temperature exhibits a considerable decrease in December, dropping from -1.4°C (29.5°F) in November to a still freezing cold -9.5°C (14.9°F). Sioux Lookout's temperature lowers to a mean of -15.7°C (3.7°F) during the nights in December.Humidity
In Sioux Lookout, the average relative humidity in December is 93%.Rainfall
In Sioux Lookout, during December, the rain falls for 1.5 days and regularly aggregates up to 23mm (0.91") of precipitation. Throughout the year, there are 108.7 rainfall days, and 530mm (20.87") of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Sioux Lookout. In Sioux Lookout, Canada, in December, during 21.2 snowfall days, 186mm (7.32") of snow is typically accumulated. Throughout the year, there are 126.5 snowfall days, and 1300mm (51.18") of snow is accumulated.Daylight
With an average of 8h and 6min of daylight, December has the shortest days of the year in Sioux Lookout.On the first day of the month, sunrise is at 7:45 am and sunset at 4:08 pm. On the last day of December, sunrise is at 8:06 am and sunset at 4:15 pm CST.
Sunshine
In Sioux Lookout, the average sunshine in December is 1.6h.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Sioux Lookout, Canada. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sioux Lookout, Canada
- Average high temperature in December: -9.5°C
The warmest month (with the highest average high temperature) is July (24.5°C).
The month with the lowest average high temperature is January (-12.3°C).
- Average low temperature in December: -15.7°C
The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is January (-20.2°C).
Average pressure in December
Sioux Lookout, Canada
- Average pressure in December: 1018.9mbar
The month with the highest atmospheric pressure is February (1020mbar).
The month with the lowest atmospheric pressure is June (1011.5mbar).
Average wind speed in December
Sioux Lookout, Canada
- Average wind speed in December: 10.5km/h
The windiest month (with the highest average wind speed) is October (11.7km/h).
The calmest months (with the lowest average wind speed) are August and December (10.5km/h).
Average humidity in December
Sioux Lookout, Canada
- Average humidity in December: 93%
The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is May (65%).
Average rainfall in December
Sioux Lookout, Canada
- Average rainfall in December: 23mm
The wettest month (with the highest rainfall) is June (74mm).
The driest month (with the least rainfall) is February (22mm).
Average rainfall days in December
Sioux Lookout, Canada
- Average rainfall days in December: 1.5 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (1.2 days).
Average snowfall in December
Sioux Lookout, Canada
- Average snowfall in December: 186mm
The month with the highest snowfall is March (227mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in December
Sioux Lookout, Canada
- Average snowfall days in December: 21.2 days
The month with the highest number of snowfall days is January (21.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Sioux Lookout, Canada
- Average daylight in December: 8h and 6min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in December: 1h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 6min).
Average sunshine days in December
Sioux Lookout, Canada
- Average sunshine days in December: 11.7 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is March (8.3 days).
Average UV index in December
Sioux Lookout, Canada
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in December
Sioux Lookout, Canada
- Average cloud cover in December: 84
The month with the most cloud cover is January (Cloud cover 89).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in December
Sioux Lookout, Canada
- Average visibility in December: 6km
The months with the highest visibility are May, June, July, August and September (9km).
The months with the lowest visibility are January and February (5km).
