December weather forecastOrillia, Canada
December
Weather in December
December, the first month of the winter in Orillia, is also a subzero cold month, with an average temperature varying between -1.4°C (29.5°F) and -6.5°C (20.3°F).Temperature
December's arrival comes with a decrease in the average high-temperature, moving from an icy 5.1°C (41.2°F) in November to a subzero cold -1.4°C (29.5°F). An average low-temperature of -6.5°C (20.3°F) is observed during December nights in Orillia.Humidity
The average relative humidity in December is 88%.Rainfall
In December, the rain falls for 9.9 days. Throughout December, 51mm (2.01") of precipitation is accumulated. In Orillia, during the entire year, the rain falls for 150.5 days and collects up to 729mm (28.7") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Orillia, in December, during 17.3 snowfall days, 185mm (7.28") of snow is typically accumulated. In Orillia, during the entire year, snow falls for 87.8 days and aggregates up to 915mm (36.02") of snow.Daylight
The month with the shortest days is December, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:35 am and sunset at 4:38 pm. On the last day of December, sunrise is at 7:54 am and sunset at 4:47 pm EST.
Sunshine
In December, the average sunshine in Orillia is 2.5h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 1 during December translates into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. 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
Average temperature in December
Orillia, Canada
- Average high temperature in December: -1.4°C
The warmest month (with the highest average high temperature) is July (24.2°C).
The month with the lowest average high temperature is January (-4.8°C).
- Average low temperature in December: -6.5°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 (-11.5°C).
Average pressure in December
Orillia, Canada
- Average pressure in December: 1017mbar
The month with the highest atmospheric pressure is March (1018.3mbar).
The month with the lowest atmospheric pressure is June (1013mbar).
Average wind speed in December
Orillia, Canada
- Average wind speed in December: 15.1km/h
The windiest month (with the highest average wind speed) is April (15.7km/h).
The calmest month (with the lowest average wind speed) is July (10.4km/h).
Average humidity in December
Orillia, Canada
- Average humidity in December: 88%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is May (77%).
Average rainfall in December
Orillia, Canada
- Average rainfall in December: 51mm
The wettest month (with the highest rainfall) is October (77mm).
The driest month (with the least rainfall) is February (43mm).
Average rainfall days in December
Orillia, Canada
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is October (16.9 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in December
Orillia, Canada
- Average snowfall in December: 185mm
The month with the highest snowfall is January (224mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Orillia, Canada
- Average snowfall days in December: 17.3 days
The month with the highest number of snowfall days is January (20.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Orillia, Canada
- Average daylight in December: 8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 2h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 12min).
Average sunshine days in December
Orillia, Canada
- Average sunshine days in December: 8.7 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is January (7.9 days).
Average UV index in December
Orillia, 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, November and December (UV index 1).
Average cloud cover in December
Orillia, Canada
- Average cloud cover in December: 74
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Orillia, 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).
