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
With the beginning of December, the average high-temperature shows a decrease, transitioning from a frosty 6.1°C (43°F) in November to an icy 0.5°C (32.9°F). The month of December in Port Perry, Canada, shows a minor drop from daytime temperatures, generally recording a low average of -3.6°C (25.5°F).Humidity
The average relative humidity in December is 84%.Rainfall
In Port Perry, in December, during 9.8 rainfall days, 44mm (1.73") of precipitation is typically accumulated. In Port Perry, during the entire year, the rain falls for 158.8 days and collects up to 693mm (27.28") of precipitation.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 9.1 days. Throughout December, 65mm (2.56") of snow is accumulated. Throughout the year, in Port Perry, there are 51.4 snowfall days, and 383mm (15.08") of snow is accumulated.Daylight
The month with the shortest days in Port Perry is December, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:31 am and sunset at 4:38 pm. On the last day of December, sunrise is at 7:50 am and sunset at 4:47 pm EST.
Sunshine
The average sunshine in December is 3.3h.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 low health risk 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:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
How cold is December in Port Perry?
What is the average humidity in December in Port Perry?
How much does it rain in Port Perry in December?
How much does it snow in Port Perry in December?
What is the month with the shortest days in Port Perry?
What is the average length of the day in December in Port Perry?
What time are sunrise and sunset in December in Port Perry?
How long on average sun shines in December in Port Perry?
When is the lowest UV index in Port Perry?
What is the UV index reading in December in Port Perry?
Average temperature in December
Port Perry, Canada
- Average high temperature in December: 0.5°C
The warmest month (with the highest average high temperature) is July (24.4°C).
The month with the lowest average high temperature is January (-2.9°C).
- Average low temperature in December: -3.6°C
The month with the highest average low temperature is August (16.8°C).
The coldest month (with the lowest average low temperature) is January (-8.3°C).
Average pressure in December
Port Perry, Canada
- Average pressure in December: 1017.3mbar
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
Port Perry, Canada
- Average wind speed in December: 17.9km/h
The windiest month (with the highest average wind speed) is January (18.7km/h).
The calmest month (with the lowest average wind speed) is July (11.4km/h).
Average humidity in December
Port Perry, Canada
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Port Perry, Canada
- Average rainfall in December: 44mm
The wettest month (with the highest rainfall) is August (73mm).
The driest months (with the least rainfall) are February and November (43mm).
Average rainfall days in December
Port Perry, Canada
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in December
Port Perry, Canada
- Average snowfall in December: 65mm
The month with the highest snowfall is February (110mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Port Perry, Canada
- Average snowfall days in December: 9.1 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Port Perry, Canada
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Port Perry, Canada
- Average sunshine days in December: 13.3 days
The month with the most sunshine days is November (14.9 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in December
Port Perry, 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 and December (UV index 1).
Average cloud cover in December
Port Perry, Canada
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Port Perry, Canada
- Average visibility in December: 9km
The months with the highest visibility are August and September (10km).
The month with the lowest visibility is January (8km).
Port Perry, Canada
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