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 transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from an icy 4°C (39.2°F) in November to a freezing cold -3.2°C (26.2°F). During December, Saint-Jérôme records a consistent average nighttime temperature of -8.8°C (16.2°F).Humidity
The average relative humidity in December is 87%.Rainfall
In December, the rain falls for 7.8 days. Throughout December, 70mm (2.76") of precipitation is accumulated. Throughout the year, in Saint-Jérôme, there are 151.4 rainfall days, and 810mm (31.89") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Saint-Jérôme, during December, snow falls for 14.6 days and regularly aggregates up to 208mm (8.19") of snow. In Saint-Jérôme, during the entire year, snow falls for 74.1 days and aggregates up to 1023mm (40.28") of snow.Daylight
The month with the shortest days in Saint-Jérôme is December, with an average of 8h and 42min of daylight.On the first day of December, sunrise is at 7:17 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:21 pm EST.
Sunshine
The average sunshine in December is 3.4h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 1 during December translates into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
How cold is December in Saint-Jérôme?
What is the average humidity in December in Saint-Jérôme?
How much does it rain in Saint-Jérôme in December?
How many days does it snow in December in Saint-Jérôme?
What is the month with the shortest days in Saint-Jérôme?
How many hours of daylight does Saint-Jérôme have in December?
When are sunrise and sunset in December in Saint-Jérôme?
How long on average sun shines in December in Saint-Jérôme?
What are the months with the lowest UV index in Saint-Jérôme?
What is the UV index reading in December in Saint-Jérôme?
Average temperature in December
Saint-Jérôme, Canada
- Average high temperature in December: -3.2°C
The warmest month (with the highest average high temperature) is July (24.3°C).
The month with the lowest average high temperature is January (-6.8°C).
- Average low temperature in December: -8.8°C
The month with the highest average low temperature is July (14.5°C).
The coldest month (with the lowest average low temperature) is January (-14.2°C).
Average pressure in December
Saint-Jérôme, Canada
- Average pressure in December: 1017.2mbar
The months with the highest atmospheric pressure are March and November (1017.7mbar).
The month with the lowest atmospheric pressure is June (1012.3mbar).
Average wind speed in December
Saint-Jérôme, Canada
- Average wind speed in December: 12.3km/h
The windiest month (with the highest average wind speed) is April (14km/h).
The calmest months (with the lowest average wind speed) are July and August (10.4km/h).
Average humidity in December
Saint-Jérôme, Canada
- Average humidity in December: 87%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (75%).
Average rainfall in December
Saint-Jérôme, Canada
- Average rainfall in December: 70mm
The wettest month (with the highest rainfall) is October (80mm).
The driest months (with the least rainfall) are September and November (55mm).
Average rainfall days in December
Saint-Jérôme, Canada
- Average rainfall days in December: 7.8 days
The month with the highest number of rainy days is July (18.2 days).
The months with the least rainy days are January and February (6.3 days).
Average snowfall in December
Saint-Jérôme, Canada
- Average snowfall in December: 208mm
The month with the highest snowfall is January (282mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Saint-Jérôme, Canada
- Average snowfall days in December: 14.6 days
The month with the highest number of snowfall days is February (17.4 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-Jérôme, Canada
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in December
Saint-Jérôme, Canada
- Average sunshine days in December: 12.7 days
The month with the most sunshine days is September (15.7 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in December
Saint-Jérôme, 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, November and December (UV index 1).
Average cloud cover in December
Saint-Jérôme, Canada
- Average cloud cover in December: 63
The months with the most cloud cover are January and February (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Saint-Jérôme, Canada
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July and October (9km).
The months with the lowest visibility are January and February (7km).
Saint-Jérôme, Canada
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