December weather forecastCaslan, Canada
December
Weather in December
December, the first month of the winter in Caslan, is also a subzero cold month, with temperature in the range of an average high of -7.3°C (18.9°F) and an average low of -13.6°C (7.5°F).Temperature
Temperature readings reach their annual highs in December, averaging -7.3°C (18.9°F) and a minimum average of -13.6°C (7.5°F).Humidity
In December, the average relative humidity is 89%.Rainfall
In Caslan, in December, it is raining for 2.7 days, with typically 9mm (0.35") of accumulated precipitation. Throughout the year, there are 108 rainfall days, and 338mm (13.31") of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In Caslan, during December, snow falls for 11.2 days and regularly aggregates up to 70mm (2.76") of snow. Throughout the year, there are 72.7 snowfall days, and 539mm (21.22") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 7h and 24min of daylight.On the first day of the month, sunrise is at 8:30 am and sunset at 4:08 pm. On the last day of December, sunrise is at 8:52 am and sunset at 4:14 pm MST.
Sunshine
In December, the average sunshine is 4.4h.UV index
In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 translates into these guidelines:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Caslan, Canada
- Average high temperature in December: -7.3°C
The warmest month (with the highest average high temperature) is July (22.6°C).
The month with the lowest average high temperature is December (-7.3°C).
- Average low temperature in December: -13.6°C
The month with the highest average low temperature is July (11.3°C).
The coldest month (with the lowest average low temperature) is February (-15.1°C).
Average pressure in December
Caslan, Canada
- Average pressure in December: 1018.7mbar
The month with the highest atmospheric pressure is February (1020.1mbar).
The month with the lowest atmospheric pressure is June (1010.2mbar).
Average wind speed in December
Caslan, Canada
- Average wind speed in December: 11.8km/h
The windiest month (with the highest average wind speed) is April (13.1km/h).
The calmest month (with the lowest average wind speed) is August (10.8km/h).
Average humidity in December
Caslan, Canada
- Average humidity in December: 89%
The month with the highest relative humidity is March (92%).
The month with the lowest relative humidity is May (60%).
Average rainfall in December
Caslan, Canada
- Average rainfall in December: 9mm
The wettest month (with the highest rainfall) is June (74mm).
The driest month (with the least rainfall) is February (8mm).
Average rainfall days in December
Caslan, Canada
- Average rainfall days in December: 2.7 days
The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is February (1.6 days).
Average snowfall in December
Caslan, Canada
- Average snowfall in December: 70mm
The month with the highest snowfall is November (90mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Caslan, Canada
- Average snowfall days in December: 11.2 days
The month with the highest number of snowfall days is March (13.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Caslan, Canada
- Average daylight in December: 7h and 24min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in December: 4h and 24min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
Caslan, Canada
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is June (8.8 days).
Average UV index in December
Caslan, Canada
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and March (UV index 1).
Average cloud cover in December
Caslan, Canada
- Average cloud cover in December: 56
The month with the most cloud cover is March (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Caslan, Canada
- Average visibility in December: 8km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February and March (7km).
