December weather forecastWaterdown, Canada
December
Weather in December
The first month of the winter, December, is still a cold month in Waterdown, Canada, with an average temperature ranging between min -2.8°C (27°F) and max 1.4°C (34.5°F).Temperature
December ushers in a slight temperature change, with average high-temperatures reducing from November's frosty 7.1°C (44.8°F) to an icy 1.4°C (34.5°F). Waterdown maintains a minor drop in temperature during December nights, with averages of -2.8°C (27°F).Humidity
The average relative humidity in December in Waterdown, Canada, is 82%.Rainfall
In Waterdown, during December, the rain falls for 11.4 days and regularly aggregates up to 49mm (1.93") of precipitation. In Waterdown, during the entire year, the rain falls for 175.2 days and collects up to 711mm (27.99") of precipitation.Snowfall
January through May, November and December are months with snowfall in Waterdown. In Waterdown, in December, during 12.4 snowfall days, 74mm (2.91") of snow is typically accumulated. In Waterdown, during the entire year, snow falls for 58.6 days and aggregates up to 463mm (18.23") of snow.Daylight
The month with the shortest days in Waterdown is December, with an average of 9h and 0min of daylight.On the first day of December in Waterdown, sunrise is at 7:32 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 4:53 pm EST.
Sunshine
The average sunshine in December in Waterdown, Canada, is 3.5h.UV index
The month with the lowest UV index is 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 the average person.Note: In December, an average UV index of 1 transforms into the following instructions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Waterdown, Canada
- Average high temperature in December: 1.4°C
The warmest month (with the highest average high temperature) is July (25.4°C).
The month with the lowest average high temperature is January (-2.3°C).
- Average low temperature in December: -2.8°C
The month with the highest average low temperature is July (17.3°C).
The coldest month (with the lowest average low temperature) is January (-7.3°C).
Average pressure in December
Waterdown, Canada
- Average pressure in December: 1017.6mbar
The months with the highest atmospheric pressure are March and November (1018.5mbar).
The month with the lowest atmospheric pressure is June (1013.3mbar).
Average wind speed in December
Waterdown, Canada
- Average wind speed in December: 17.9km/h
The windiest month (with the highest average wind speed) is January (19km/h).
The calmest month (with the lowest average wind speed) is July (11.3km/h).
Average humidity in December
Waterdown, Canada
- Average humidity in December: 82%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Waterdown, Canada
- Average rainfall in December: 49mm
The wettest month (with the highest rainfall) is July (74mm).
The driest month (with the least rainfall) is September (44mm).
Average rainfall days in December
Waterdown, Canada
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in December
Waterdown, Canada
- Average snowfall in December: 74mm
The month with the highest snowfall is February (137mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Waterdown, Canada
- Average snowfall days in December: 12.4 days
The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Waterdown, Canada
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 3h and 30min
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 12min).
Average sunshine days in December
Waterdown, Canada
- Average sunshine days in December: 9.9 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (9 days).
Average UV index in December
Waterdown, Canada
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Waterdown, Canada
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Waterdown, Canada
- Average visibility in December: 9km
The month with the highest visibility is August (10km).
The month with the lowest visibility is January (8km).
