December weather forecastMississauga, Canada
December
Weather in December
Mississauga in December is a winter wonderland, with the average maximum temperature down to a chilly 2.4°C (36.3°F). The city is a captivating sight, blanketed in fresh white snow. With Christmas around the corner, the festive cheer, combined with the winter cold, enhances the city's charm. Indoor activities and winter sports gain popularity as outdoor temperature dips. From the clear, frosty mornings to the chilly, starlit evenings, December is genuinely reflective of a classic Canadian winter experience.Temperature
December comes with a decrease in the average high-temperature, falling from a frosty 7.8°C (46°F) in November to a cold 2.4°C (36.3°F). Mississauga, during December nights, observes a steady temperature, averaging at a subzero cold -1.5°C (29.3°F).Humidity
In December, the average relative humidity is 80%.Rainfall
In December, in Mississauga, the rain falls for 11.8 days. Throughout December, 56mm (2.2") of precipitation is accumulated. Throughout the year, in Mississauga, there are 177.2 rainfall days, and 786mm (30.94") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Mississauga, Canada, in December, during 12.5 snowfall days, 76mm (2.99") of snow is typically accumulated. In Mississauga, during the entire year, snow falls for 58.5 days and aggregates up to 403mm (15.87") of snow.Sea temperature
In December, the average sea temperature is 4.9°C (40.8°F).Note: Under swimming conditions, this represents an immediate threat to life. Control over breathing is lost instantaneously, complicating thought processes. A specialized swimsuit is indispensable to conserve thermal energy.
Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year in Mississauga.On the first day of the month, sunrise is at 7:32 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:51 am and sunset at 4:52 pm EST.
Sunshine
The average sunshine in December is 3.2h.UV index
January 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 hazard from exposure to the Sun's UV radiation for average individuals.Note: An average UV index of 1 in December transforms into this advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mississauga, Canada
- Average high temperature in December: 2.4°C
The warmest month (with the highest average high temperature) is July (24.8°C).
The month with the lowest average high temperature is January (-1.4°C).
- Average low temperature in December: -1.5°C
The month with the highest average low temperature is July (18.6°C).
The coldest month (with the lowest average low temperature) is January (-6.1°C).
Average pressure in December
Mississauga, Canada
- Average pressure in December: 1017.7mbar
The month with the highest atmospheric pressure is November (1018.5mbar).
The month with the lowest atmospheric pressure is June (1013.3mbar).
Average wind speed in December
Mississauga, Canada
- Average wind speed in December: 19.7km/h
The windiest month (with the highest average wind speed) is January (21km/h).
The calmest month (with the lowest average wind speed) is July (12.1km/h).
Average humidity in December
Mississauga, Canada
- Average humidity in December: 80%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is September (74%).
Average rainfall in December
Mississauga, Canada
- Average rainfall in December: 56mm
The wettest month (with the highest rainfall) is July (80mm).
The driest months (with the least rainfall) are September and November (55mm).
Average rainfall days in December
Mississauga, Canada
- Average rainfall days in December: 11.8 days
The month with the highest number of rainy days is October (18.9 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in December
Mississauga, Canada
- Average snowfall in December: 76mm
The month with the highest snowfall is February (127mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Mississauga, Canada
- Average snowfall days in December: 12.5 days
The month with the highest number of snowfall days is February (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Mississauga, Canada
- Average sea temperature in December: 4.9°C
The best month for swimming (with the highest average sea temperature) is August (22.3°C).
The coldest months (with the lowest average sea temperature) are February and March (1.4°C).
Average daylight in December /
Average sunshine in December
Mississauga, Canada
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 3h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Mississauga, Canada
- Average sunshine days in December: 8.8 days
The month with the most sunshine days is September (13 days).
The month with the least sunshine days is January (7.5 days).
Average UV index in December
Mississauga, Canada
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Mississauga, Canada
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Mississauga, Canada
- Average visibility in December: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January and February (8km).
