December weather forecastInnisfil, Canada

December

Weather in December

The first month of the winter, December, is also a subzero cold month in Innisfil, Canada, with an average temperature varying between -0.9°C (30.4°F) and -5.5°C (22.1°F).

Temperature

December's arrival comes with a decrease in the average high-temperature, moving from a wintry 5.4°C (41.7°F) in November to a subzero cold -0.9°C (30.4°F). Innisfil notes a steady average temperature of -5.5°C (22.1°F) during the nights of December.

Humidity

The average relative humidity in December in Innisfil is 87%.

Rainfall

In Innisfil, in December, during 7.7 rainfall days, 35mm (1.38") of precipitation is typically accumulated. Throughout the year, in Innisfil, there are 145 rainfall days, and 621mm (24.45") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Innisfil, Canada, in December, during 13.4 snowfall days, 112mm (4.41") of snow is typically accumulated. Throughout the year, in Innisfil, there are 66.4 snowfall days, and 553mm (21.77") of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 8h and 54min of daylight.
On the first day of December, sunrise is at 7:34 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:54 am and sunset at 4:49 pm EST.

Sunshine

In December, the average sunshine in Innisfil is 2.7h.

UV index

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 1 during December leads to these instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.

Frequently asked questions

December temperatures vary between a high-temperature of -0.9°C (30.4°F) and a low-temperature of -5.5°C (22.1°F).

In Innisfil, the average relative humidity in December is 87%.

In December, in Innisfil, the rain falls for 7.7 days. Throughout December, 35mm (1.38") of precipitation is accumulated.

In Innisfil, in December, snow falls for 13.4 days, with typically accumulated 112mm (4.41") of snow.

December has the shortest days of the year in Innisfil, with an average of 8h and 54min of daylight.

The average day length in December in Innisfil is 8h and 55min.

On the first day of December in Innisfil, Canada, sunrise is at 7:34 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:54 am and sunset at 4:49 pm EST.

In Innisfil, the average sunshine duration in December is 2.7h.

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Innisfil.

In Innisfil, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Innisfil, Canada

  • Average high temperature in December: -0.9°C

The warmest month (with the highest average high temperature) is July (24.2°C).
The month with the lowest average high temperature is January (-4.3°C).

  • Average low temperature in December: -5.5°C

The month with the highest average low temperature is July (14.9°C).
The coldest month (with the lowest average low temperature) is January (-10.4°C).

Average pressure in December
Innisfil, Canada

  • Average pressure in December: 1017.1mbar

The month with the highest atmospheric pressure is March (1018.3mbar).
The month with the lowest atmospheric pressure is June (1013mbar).

Average wind speed in December
Innisfil, Canada

  • Average wind speed in December: 16.1km/h

The windiest month (with the highest average wind speed) is February (16.4km/h).
The calmest month (with the lowest average wind speed) is July (10.5km/h).

Average humidity in December
Innisfil, Canada

  • Average humidity in December: 87%

The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are April and May (78%).

Average rainfall in December
Innisfil, Canada

  • Average rainfall in December: 35mm

The wettest month (with the highest rainfall) is July (75mm).
The driest month (with the least rainfall) is February (26mm).

Average rainfall days in December
Innisfil, Canada

  • Average rainfall days in December: 7.7 days

The month with the highest number of rainy days is August (18.1 days).
The month with the least rainy days is February (4 days).

Average snowfall in December
Innisfil, Canada

  • Average snowfall in December: 112mm

The month with the highest snowfall is January (121mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Innisfil, Canada

  • Average snowfall days in December: 13.4 days

The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Innisfil, Canada

  • Average daylight in December: 8h and 54min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 2h and 42min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

Average sunshine days in December
Innisfil, Canada

  • Average sunshine days in December: 11.9 days

The month with the most sunshine days is March (14.3 days).
The months with the least sunshine days are July and August (9.8 days).

Average UV index in December
Innisfil, Canada

  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in December
Innisfil, Canada

  • Average cloud cover in December: 73

The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Innisfil, Canada

  • Average visibility in December: 8km

The months with the highest visibility are March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January, February and December (8km).