December weather forecast
Rainbow Lake, Canada

December, the first month of the winter in Rainbow Lake, is still a freezing cold month, with an average temperature fluctuating between -20°C (-4°F) and -9°C (15.8°F).

Temperature

The arrival of December is marked by a minor reduction in average high-temperature, sliding from -6°C (21.2°F) in November to a still freezing cold -9°C (15.8°F). December's average low-temperature reading settles at a polar cold -20°C (-4°F).

Rainfall

In Rainbow Lake, Canada, in December, it is raining for 6 days, with typically 22mm (0.87") of accumulated precipitation. In Rainbow Lake, during the entire year, the rain falls for 99 days and collects up to 414mm (16.3") of precipitation.

Daylight

With an average of 6h and 30min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 9:22 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 9:46 am and sunset at 4:15 pm MST.

Sunshine

December has the least sunshine of the year, with an average of 1h of sunshine.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 0. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 0 during December leads to these advisories:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.