December weather forecastMoncton, Canada
December
Weather in December
December, the first month of the winter in Moncton, is still a freezing cold month, with temperature in the range of an average high of -0.5°C (31.1°F) and an average low of -6.2°C (20.8°F).Temperature
A decrease in the average high-temperature is observed during December, shifting from a wintry 5.5°C (41.9°F) in November to a subzero cold -0.5°C (31.1°F). An average low-temperature of -6.2°C (20.8°F) marks the nights in Moncton, Canada throughout December.Humidity
In December, the average relative humidity is 85%.Rainfall
In December, the rain falls for 10.2 days. Throughout December, 75mm (2.95") of precipitation is accumulated. In Moncton, during the entire year, the rain falls for 152.8 days and collects up to 769mm (30.28") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Moncton, Canada, during December, snow falls for 12.8 days and regularly aggregates up to 162mm (6.38") of snow. In Moncton, during the entire year, snow falls for 77.8 days and aggregates up to 1163mm (45.79") of snow.Daylight
December has the shortest days of the year in Moncton, Canada, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 7:41 am and sunset at 4:35 pm. On the last day of December, in Moncton, sunrise is at 8:01 am and sunset at 4:43 pm AST.
Sunshine
The average sunshine in December is 3.5h.UV index
February, March and December, with an average maximum UV index of 1, are months with the lowest UV index in Moncton, Canada. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 1 in December translates into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Moncton, Canada
- Average high temperature in December: -0.5°C
The warmest month (with the highest average high temperature) is July (24°C).
The month with the lowest average high temperature is January (-4°C).
- Average low temperature in December: -6.2°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (-11.2°C).
Average pressure in December
Moncton, Canada
- Average pressure in December: 1014.4mbar
The month with the highest atmospheric pressure is September (1016.5mbar).
The month with the lowest atmospheric pressure is June (1012.5mbar).
Average wind speed in December
Moncton, Canada
- Average wind speed in December: 14.6km/h
The windiest month (with the highest average wind speed) is January (14.8km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).
Average humidity in December
Moncton, Canada
- Average humidity in December: 85%
The month with the highest relative humidity is February (90%).
The months with the lowest relative humidity are May and July (77%).
Average rainfall in December
Moncton, Canada
- Average rainfall in December: 75mm
The wettest month (with the highest rainfall) is November (82mm).
The driest month (with the least rainfall) is July (50mm).
Average rainfall days in December
Moncton, Canada
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in December
Moncton, Canada
- Average snowfall in December: 162mm
The month with the highest snowfall is February (275mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Moncton, Canada
- Average snowfall days in December: 12.8 days
The month with the highest number of snowfall days is March (16.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Moncton, Canada
- Average daylight in December: 8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 3h and 30min
The months with the most sunshine are July and August (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 6min).
Average sunshine days in December
Moncton, Canada
- Average sunshine days in December: 12.2 days
The month with the most sunshine days is October (14.7 days).
The month with the least sunshine days is February (8.9 days).
Average UV index in December
Moncton, Canada
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are February, March and December (UV index 1).
Average cloud cover in December
Moncton, Canada
- Average cloud cover in December: 62
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in December
Moncton, Canada
- Average visibility in December: 8km
The months with the highest visibility are May, July, September and October (9km).
The months with the lowest visibility are January, February and March (7km).





