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
December
Weather in December
Temperature
The average high-temperature decreases in December, shifting from a cold 4.8°C (40.6°F) in November to a freezing cold -2.2°C (28°F). December brings an average low-temperature of -7.7°C (18.1°F) to Saint-Laurent.Humidity
In December, the average relative humidity is 86%.Rainfall
In December, the rain falls for 8 days. Throughout December, 63mm (2.48") of precipitation is accumulated. In Saint-Laurent, Canada, during the entire year, the rain falls for 145.2 days and collects up to 772mm (30.39") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Saint-Laurent, in December, during 12.1 snowfall days, 161mm (6.34") of snow is typically accumulated. Throughout the year, there are 63.4 snowfall days, and 895mm (35.24") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:15 am and sunset at 4:13 pm. On the last day of December, sunrise is at 7:34 am and sunset at 4:21 pm EST.
Sunshine
In Saint-Laurent, the average sunshine in December is 3.2h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Saint-Laurent have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Saint-Laurent, Canada
- Average high temperature in December: -2.2°C
The warmest month (with the highest average high temperature) is July (25.4°C).
The month with the lowest average high temperature is January (-5.8°C).
- Average low temperature in December: -7.7°C
The month with the highest average low temperature is July (16.2°C).
The coldest month (with the lowest average low temperature) is January (-13.1°C).
Average pressure in December
Saint-Laurent, 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
Saint-Laurent, Canada
- Average wind speed in December: 13.2km/h
The windiest month (with the highest average wind speed) is April (14.4km/h).
The calmest months (with the lowest average wind speed) are July, August and September (11km/h).
Average humidity in December
Saint-Laurent, Canada
- Average humidity in December: 86%
The months with the highest relative humidity are January and February (90%).
The months with the lowest relative humidity are April and May (74%).
Average rainfall in December
Saint-Laurent, Canada
- Average rainfall in December: 63mm
The wettest month (with the highest rainfall) is May (78mm).
The driest months (with the least rainfall) are February and September (54mm).
Average rainfall days in December
Saint-Laurent, Canada
- Average rainfall days in December: 8 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is February (5 days).
Average snowfall in December
Saint-Laurent, Canada
- Average snowfall in December: 161mm
The month with the highest snowfall is January (242mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Saint-Laurent, Canada
- Average snowfall days in December: 12.1 days
The month with the highest number of snowfall days is January (16.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Saint-Laurent, 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 6min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in December
Saint-Laurent, Canada
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is September (16.4 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in December
Saint-Laurent, 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, November and December (UV index 1).
Average cloud cover in December
Saint-Laurent, Canada
- Average cloud cover in December: 65
The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Saint-Laurent, Canada
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, September, October and November (9km).
The month with the lowest visibility is January (7km).
