Windsor
Canada
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Windsor, Canada

December, the first month of the winter, in Windsor, is also a wintry month, with average temperature ranging between min -2.5°C (27.5°F) and max 1.8°C (35.2°F).

Temperature

In December, the average high-temperature decreases, from a frosty 7.6°C (45.7°F) in November, to a cold 1.8°C (35.2°F). In December, the average low-temperature is -2.5°C (27.5°F).

Humidity

The average relative humidity in Windsor is 81%.

Rainfall

In Windsor, during 8.5 rainfall days, 32mm (1.26") of precipitation is typically accumulated. Throughout the year, there are 152.1 rainfall days, and 595mm (23.43") of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Windsor, snow falls for 12.4 days, with typically accumulated 58mm (2.28") of snow. Throughout the year, there are 54.3 snowfall days, and 377mm (14.84") of snow is accumulated.

Sea temperature

In Windsor, Canada, the average seawater temperature is 3.4°C (38.1°F).
Note: For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

Daylight

The month with the shortest days in Windsor is December, with an average of 9.1h of daylight.

Sunshine

In Windsor, Canada, the average sunshine is 3.6h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to the UV radiation for average individuals.
Note: The average daily UV index of 1 in December transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Windsor?

The average high-temperature, in December, in Windsor, is 1.8°C (35.2°F), while the average low-temperature is -2.5°C (27.5°F).

What is the average humidity in December in Windsor?

In Windsor, the average relative humidity in December is 81%.

How much does it rain in Windsor in December?

In December, in Windsor, the rain falls for 8.5 days. Throughout December, 32mm (1.26") of precipitation is accumulated.

How many days does it snow in December in Windsor?

In December, it is snowing for 12.4 days. Throughout December, 58mm (2.28") of snow is accumulated.

What is the water temperature in December in Windsor?

In Windsor, in December, the average water temperature is 3.4°C (38.1°F). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

What is the month with the shortest days in Windsor?

December has the shortest days of the year, with an average of 9.1h of daylight.

What is the average length of the day in December in Windsor?

In Windsor, Canada, the average length of the day in December is 9.1h.

How long on average sun shines in December in Windsor?

In Windsor, Canada, the average sunshine in December is 3.6h.

What is the month with the lowest UV index in Windsor?

December is the month with the lowest UV index, with an average maximum UV index of 1.

What is the UV index intensity in December in Windsor?

The average daily maximum UV index in December in Windsor, Canada, is 1. A UV Index reading of 2, and below, represents a low health risk from the exposure to the Sun's UV radiation.
Average temperature in December - Windsor, Canada
  • Average high temperature in December: 1.8°C

The warmest month (with the highest average high temperature) is July (26.6°C).
The month with the lowest average high temperature is January (-1.5°C).

  • Average low temperature in December: -2.5°C

The month with the highest average low temperature is July (18.8°C).
The coldest month (with the lowest average low temperature) is January (-6.9°C).

Average humidity in December - Windsor, Canada
  • Average humidity in December: 81%

The month with the highest relative humidity is February (85%).
Months with the lowest relative humidity are July and August (73%).

Average rainfall in December - Windsor, Canada
  • Average rainfall in December: 32mm

The wettest month (with the highest rainfall) is May (73mm).
The driest month (with the lowest rainfall) is February (31mm).

Average rainfall days in December - Windsor, Canada
  • Average rainfall days in December: 8.5 days

The month with the highest number of rainy days is May (16.8 days).
The month with the lowest number of rainy days is January (7.1 days).

Average snowfall in December - Windsor, Canada
  • Average snowfall in December: 58mm

The month with the highest snowfall is January (109mm).
Months with the lowest snowfall are June, July, August and September (0mm).

Average snowfall days in December - Windsor, Canada
  • Average snowfall days in December: 12.4 days

The month with the highest number of snowfall days is January (14.5 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average sea temperature in December - Windsor, Canada
  • Average sea temperature in December: 3.4°C

The best month for swimming (with the highest average sea temperature) is August (24.1°C).
The coldest month (with the lowest average sea temperature) is February (0.4°C).

Average daylight in December / Average sunshine in December - Windsor, Canada
  • Average daylight in December: 9.1h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.1h).

  • Average sunshine in December: 3.6h

The month with most sunshine is July (Average sunshine: 10.6h).
The month with least sunshine is January (Average sunshine: 3.2h).

Average UV index in December - Windsor, Canada
  • Average UV index in December: 1

Months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).