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 shift from November to December corresponds with a decrease in the average high-temperature, down to a subzero cold -2.3°C (27.9°F) from a cold 5°C (41°F). During the month of December, Mont Saint-Hilaire experiences a steady low-temperature average of -7.7°C (18.1°F).Humidity
In Mont Saint-Hilaire, the average relative humidity in December is 86%.Rainfall
In Mont Saint-Hilaire, Canada, in December, during 8.5 rainfall days, 75mm (2.95") of precipitation is typically accumulated. In Mont Saint-Hilaire, during the entire year, the rain falls for 159.6 days and collects up to 875mm (34.45") of precipitation.Snowfall
Months with snowfall in Mont Saint-Hilaire, Canada, are January through May, October through December. In Mont Saint-Hilaire, during December, snow falls for 15.5 days and regularly aggregates up to 216mm (8.5") of snow. In Mont Saint-Hilaire, Canada, during the entire year, snow falls for 77.9 days and aggregates up to 1133mm (44.61") of snow.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year in Mont Saint-Hilaire.On the first day of the month, sunrise is at 7:13 am and sunset at 4:10 pm. On the last day of December, sunrise is at 7:32 am and sunset at 4:19 pm EST.
Sunshine
In December, the average sunshine in Mont Saint-Hilaire is 3.1h.UV index
The months with the lowest UV index in Mont Saint-Hilaire are January, February and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 1 in December leads to these guidelines:
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. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Mont Saint-Hilaire?
What is the average humidity in December in Mont Saint-Hilaire?
How much does it rain in Mont Saint-Hilaire in December?
How many days does it snow in December in Mont Saint-Hilaire?
What is the month with the shortest days in Mont Saint-Hilaire?
How many hours of daylight does Mont Saint-Hilaire have in December?
What time are sunrise and sunset in December in Mont Saint-Hilaire?
How long on average sun shines in December in Mont Saint-Hilaire?
What is the month with the lowest UV index in Mont Saint-Hilaire?
How high is the UV index in December in Mont Saint-Hilaire?
Average temperature in December
Mont Saint-Hilaire, Canada
- Average high temperature in December: -2.3°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: -7.7°C
The month with the highest average low temperature is July (15.9°C).
The coldest month (with the lowest average low temperature) is January (-13°C).
Average pressure in December
Mont Saint-Hilaire, 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
Mont Saint-Hilaire, Canada
- Average wind speed in December: 13km/h
The windiest months (with the highest average wind speed) are February and April (14.2km/h).
The calmest month (with the lowest average wind speed) is August (10.8km/h).
Average humidity in December
Mont Saint-Hilaire, 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
Mont Saint-Hilaire, Canada
- Average rainfall in December: 75mm
The wettest month (with the highest rainfall) is May (86mm).
The driest month (with the least rainfall) is September (56mm).
Average rainfall days in December
Mont Saint-Hilaire, Canada
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in December
Mont Saint-Hilaire, Canada
- Average snowfall in December: 216mm
The month with the highest snowfall is January (295mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Mont Saint-Hilaire, Canada
- Average snowfall days in December: 15.5 days
The month with the highest number of snowfall days is January (18.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mont Saint-Hilaire, 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 months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).
Average sunshine days in December
Mont Saint-Hilaire, Canada
- Average sunshine days in December: 10.7 days
The month with the most sunshine days is September (16 days).
The month with the least sunshine days is February (8.7 days).
Average UV index in December
Mont Saint-Hilaire, 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
Mont Saint-Hilaire, Canada
- Average cloud cover in December: 67
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
Mont Saint-Hilaire, 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).
