Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The onset of December coincides with a reduction in the average high-temperature, falling from a wintry 5.1°C (41.2°F) in November to a freezing cold -2.2°C (28°F). Nighttime temperature in Montreal dips to a mean of -7.6°C (18.3°F) during December.Humidity
In December, the average relative humidity in Montreal is 86%.Rainfall
In December, the rain falls for 8.5 days. Throughout December, 75mm (2.95") of precipitation is accumulated. Throughout the year, in Montreal, there are 154.5 rainfall days, and 864mm (34.02") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In December, in Montreal, it is snowing for 14.5 days. Throughout December, 211mm (8.31") of snow is accumulated. In Montreal, Canada, during the entire year, snow falls for 74.1 days and aggregates up to 1120mm (44.09") of snow.Daylight
December has the shortest days of the year in Montreal, Canada, with an average of 8h and 48min of daylight.On the first day of December in Montreal, sunrise is at 7:14 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:20 pm EST.
Sunshine
The average sunshine in December in Montreal is 3.2h.UV index
The months with the lowest UV index in Montreal are January, February and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: A maximum UV index of 1 in December translates into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Montreal?
What is the average humidity in December in Montreal?
How many days does it rain in December in Montreal?
How many days does it snow in December in Montreal?
What is the month with the shortest days in Montreal?
What is the average length of the day in December in Montreal?
When are sunrise and sunset in December in Montreal?
How many hours of sunshine does Montreal have in December?
What is the month with the lowest UV index in Montreal?
What is the UV index intensity in December in Montreal?
Average temperature in December
Montreal, Canada
- Average high temperature in December: -2.2°C
The warmest month (with the highest average high temperature) is July (25.8°C).
The month with the lowest average high temperature is January (-5.8°C).
- Average low temperature in December: -7.6°C
The month with the highest average low temperature is July (16.3°C).
The coldest month (with the lowest average low temperature) is January (-13.1°C).
Average pressure in December
Montreal, Canada
- Average pressure in December: 1017.3mbar
The month with the highest atmospheric pressure is November (1017.8mbar).
The month with the lowest atmospheric pressure is June (1012.4mbar).
Average wind speed in December
Montreal, Canada
- Average wind speed in December: 13km/h
The windiest month (with the highest average wind speed) is April (14.3km/h).
The calmest month (with the lowest average wind speed) is August (10.9km/h).
Average humidity in December
Montreal, Canada
- Average humidity in December: 86%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (73%).
Average rainfall in December
Montreal, Canada
- Average rainfall in December: 75mm
The wettest month (with the highest rainfall) is May (85mm).
The driest month (with the least rainfall) is September (55mm).
Average rainfall days in December
Montreal, Canada
- Average rainfall days in December: 8.5 days
The months with the highest number of rainy days are May and July (17.8 days).
The month with the least rainy days is January (5 days).
Average snowfall in December
Montreal, Canada
- Average snowfall in December: 211mm
The month with the highest snowfall is January (293mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Montreal, Canada
- Average snowfall days in December: 14.5 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Montreal, Canada
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).
Average sunshine days in December
Montreal, Canada
- Average sunshine days in December: 11.1 days
The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is February (8.9 days).
Average UV index in December
Montreal, Canada
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Montreal, Canada
- Average cloud cover in December: 66
The month with the most cloud cover is February (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Montreal, Canada
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January and February (7km).
Montreal, Canada
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