December weather forecastStewart Valley, Canada
December weather forecast for Stewart Valley, Canada: The first month of the winter, December, is still a freezing cold month in Stewart Valley, Canada, with an average temperature fluctuating between -6°C (21.2°F) and -12.3°C (9.9°F). In Stewart Valley, in December, snow falls for 15.7 days, with typically accumulated 83mm (3.27") of snow.
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Stewart Valley, Canada, with an average temperature fluctuating between -6°C (21.2°F) and -12.3°C (9.9°F).Temperature
Stepping into December, Stewart Valley observes a temperature decline, with the average high falling from November's cold 1.3°C (34.3°F) to a subzero cold -6°C (21.2°F). Nighttime temperatures in December average to a frigid cold -12.3°C (9.9°F).Humidity
The average relative humidity in December is 87%.Rainfall
December is the month with the least rainfall in Stewart Valley. Rain falls for 3.8 days and accumulates 14mm (0.55") of precipitation.Snowfall
January through May, September through December are months with snowfall. In Stewart Valley, in December, snow falls for 15.7 days, with typically accumulated 83mm (3.27") of snow. Throughout the year, there are 84.2 snowfall days, and 560mm (22.05") 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 the month, sunrise is at 8:51 am and sunset at 5:09 pm. On the last day of December, sunrise is at 9:12 am and sunset at 5:16 pm CST.
Sunshine
With an average of 3.4h of sunshine, December has the least sunshine of the year.UV index
In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Stewart Valley, Canada
- Average high temperature in December: -6°C
The warmest month (with the highest average high temperature) is July (25.8°C).
The month with the lowest average high temperature is February (-6.5°C).
- Average low temperature in December: -12.3°C
The month with the highest average low temperature is August (14.5°C).
The coldest month (with the lowest average low temperature) is February (-13.8°C).
Average pressure in December
Stewart Valley, Canada
- Average pressure in December: 1019.9mbar
The month with the highest atmospheric pressure is February (1021.1mbar).
The month with the lowest atmospheric pressure is June (1010mbar).
Average wind speed in December
Stewart Valley, Canada
- Average wind speed in December: 17.6km/h
The windiest month (with the highest average wind speed) is January (18.9km/h).
The calmest month (with the lowest average wind speed) is August (14.5km/h).
Average humidity in December
Stewart Valley, Canada
- Average humidity in December: 87%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is August (49%).
Average rainfall in December
Stewart Valley, Canada
- Average rainfall in December: 14mm
The wettest month (with the highest rainfall) is June (54mm).
The driest month (with the least rainfall) is December (14mm).
Average rainfall days in December
Stewart Valley, Canada
- Average rainfall days in December: 3.8 days
The month with the highest number of rainy days is June (13.1 days).
The months with the least rainy days are January and February (3 days).
Average snowfall in December
Stewart Valley, Canada
- Average snowfall in December: 83mm
The month with the highest snowfall is November (100mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in December
Stewart Valley, Canada
- Average snowfall days in December: 15.7 days
The month with the highest number of snowfall days is December (15.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Stewart Valley, 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: 3h and 24min
The month with the most sunshine is July (Average sunshine: 13h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in December
Stewart Valley, Canada
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is September (22.7 days).
The month with the least sunshine days is March (12.1 days).
Average UV index in December
Stewart Valley, 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
Stewart Valley, Canada
- Average cloud cover in December: 57
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 21).
Average visibility in December
Stewart Valley, Canada
- Average visibility in December: 8km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March and December (8km).
