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
A clear reduction in the average high-temperature marks the arrival of December, falling from an icy 0°C (32°F) in November to a freezing cold -8.3°C (17.1°F). An average minimum temperature of -15.4°C (4.3°F) marks the month of December.Humidity
In December, the average relative humidity is 94%.Rainfall
In Smooth Rock Falls, Canada, during December, the rain falls for 2.1 days and regularly aggregates up to 25mm (0.98") of precipitation. Throughout the year, there are 111.6 rainfall days, and 514mm (20.24") of precipitation is accumulated.Snowfall
Months with snowfall in Smooth Rock Falls are January through June, September through December. In Smooth Rock Falls, Canada, in December, snow falls for 18.2 days, with typically accumulated 174mm (6.85") of snow. In Smooth Rock Falls, during the entire year, snow falls for 114.9 days and aggregates up to 1280mm (50.39") of snow.Daylight
The month with the shortest days in Smooth Rock Falls, Canada, is December, with an average of 8h and 18min of daylight.On the first day of the month, sunrise is at 8:01 am and sunset at 4:30 pm. On the last day of December, sunrise is at 8:21 am and sunset at 4:38 pm EST.
Sunshine
In December, the average sunshine is 1.6h.UV index
January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Smooth Rock Falls. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 1 in December transforms into the following instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Smooth Rock Falls?
What is the average humidity in December in Smooth Rock Falls?
How many days does it rain in December in Smooth Rock Falls?
How much does it snow in Smooth Rock Falls in December?
What is the month with the shortest days in Smooth Rock Falls?
How many hours of daylight does Smooth Rock Falls have in December?
When are sunrise and sunset in December in Smooth Rock Falls?
How long on average sun shines in December in Smooth Rock Falls?
When is the lowest UV index in Smooth Rock Falls?
How high is the UV index in December in Smooth Rock Falls?
Average temperature in December
Smooth Rock Falls, Canada
- Average high temperature in December: -8.3°C
The warmest month (with the highest average high temperature) is July (24.6°C).
The month with the lowest average high temperature is January (-11.8°C).
- Average low temperature in December: -15.4°C
The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is January (-20.8°C).
Average pressure in December
Smooth Rock Falls, Canada
- Average pressure in December: 1017.4mbar
The month with the highest atmospheric pressure is March (1019.4mbar).
The month with the lowest atmospheric pressure is July (1011.2mbar).
Average wind speed in December
Smooth Rock Falls, Canada
- Average wind speed in December: 10.5km/h
The windiest month (with the highest average wind speed) is November (11.4km/h).
The calmest month (with the lowest average wind speed) is June (9.9km/h).
Average humidity in December
Smooth Rock Falls, Canada
- Average humidity in December: 94%
The months with the highest relative humidity are January, February and March (95%).
The months with the lowest relative humidity are June and July (68%).
Average rainfall in December
Smooth Rock Falls, Canada
- Average rainfall in December: 25mm
The wettest month (with the highest rainfall) is October (71mm).
The driest month (with the least rainfall) is January (19mm).
Average rainfall days in December
Smooth Rock Falls, Canada
- Average rainfall days in December: 2.1 days
The month with the highest number of rainy days is August (16.8 days).
The month with the least rainy days is February (0.7 days).
Average snowfall in December
Smooth Rock Falls, Canada
- Average snowfall in December: 174mm
The month with the highest snowfall is April (247mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Smooth Rock Falls, Canada
- Average snowfall days in December: 18.2 days
The month with the highest number of snowfall days is December (18.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Smooth Rock Falls, Canada
- Average daylight in December: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in December: 1h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 0min).
The month with the least sunshine is February (Average sunshine: 1h and 6min).
Average sunshine days in December
Smooth Rock Falls, Canada
- Average sunshine days in December: 13.3 days
The month with the most sunshine days is January (15.8 days).
The month with the least sunshine days is April (9.6 days).
Average UV index in December
Smooth Rock Falls, Canada
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in December
Smooth Rock Falls, Canada
- Average cloud cover in December: 84
The months with the most cloud cover are January and February (Cloud cover 88).
The month with the least cloud cover is July (Cloud cover 43).
Average visibility in December
Smooth Rock Falls, Canada
- Average visibility in December: 5km
The months with the highest visibility are May, June and July (9km).
The month with the lowest visibility is January (4km).
