December weather forecast
Sault Ste. Marie, MI

December, the first month of the winter in Sault Ste. Marie, is also a subzero cold month, with an average temperature varying between 15.8°F (-9°C) and 28.6°F (-1.9°C).

Temperature

In December, the average high-temperature in Sault Ste. Marie drops from a wintry 40.1°F (4.5°C) in November to a subzero cold 28.6°F (-1.9°C). In Sault Ste. Marie, in December, the average low-temperature is 15.8°F (-9°C).

Rainfall

In Sault Ste. Marie, in December, it is raining for 18.8 days, with typically 2.8" (71mm) of accumulated precipitation. Throughout the year, in Sault Ste. Marie, Michigan, there are 162.9 rainfall days, and 32.95" (837mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Sault Ste. Marie. December is the month with the most snowfall in Sault Ste. Marie. Snow falls for 18 days and accumulates 33.5" (851mm) of snow.

Ocean temperature

In Sault Ste. Marie, the average seawater temperature in December is 39.2°F (4°C).
Note: For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

Daylight

The month with the shortest days in Sault Ste. Marie is December, with an average of 8h and 39min of daylight.
On the first day of December in Sault Ste. Marie, Michigan, sunrise is at 8:00 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 8:21 am and sunset at 4:59 pm EST.

Sunshine

The average sunshine in December in Sault Ste. Marie, Michigan, is 2.5h.

UV index

The months with the lowest UV index in Sault Ste. Marie are January, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 1 in December interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.