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
Garthby's December weather features a mild decline in high-temperatures, reducing from a wintry 3°C (37.4°F) in November to a subzero cold -4.2°C (24.4°F). Throughout the month of December, Garthby reports a steady low-temperature average of -10°C (14°F).Humidity
In Garthby, the average relative humidity in December is 90%.Rainfall
In Garthby, in December, during 7.3 rainfall days, 81mm (3.19") of precipitation is typically accumulated. In Garthby, Canada, during the entire year, the rain falls for 154.4 days and collects up to 932mm (36.69") of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 21.1 days. Throughout December, 323mm (12.72") of snow is accumulated. In Garthby, during the entire year, snow falls for 113.4 days and aggregates up to 1996mm (78.58") of snow.Daylight
December has the shortest days of the year, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 7:07 am and sunset at 4:02 pm. On the last day of December, sunrise is at 7:26 am and sunset at 4:11 pm EST.
Sunshine
In December, the average sunshine is 2.5h.UV index
The months with the lowest UV index are January through March and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 1 translates into these guidelines:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Stay sun-safe with clothing that is both closely woven and worn loosely. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Garthby have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
When is the lowest UV index in Garthby?
What is the UV index reading in December?
Average temperature in December
Garthby, Canada
- Average high temperature in December: -4.2°C
The warmest month (with the highest average high temperature) is July (23.2°C).
The month with the lowest average high temperature is January (-7.1°C).
- Average low temperature in December: -10°C
The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is January (-15.2°C).
Average pressure in December
Garthby, Canada
- Average pressure in December: 1016.8mbar
The month with the highest atmospheric pressure is November (1017.3mbar).
The month with the lowest atmospheric pressure is June (1012.3mbar).
Average wind speed in December
Garthby, Canada
- Average wind speed in December: 12.9km/h
The windiest month (with the highest average wind speed) is January (14km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).
Average humidity in December
Garthby, Canada
- Average humidity in December: 90%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (78%).
Average rainfall in December
Garthby, Canada
- Average rainfall in December: 81mm
The wettest months (with the highest rainfall) are April and August (86mm).
The driest month (with the least rainfall) is February (64mm).
Average rainfall days in December
Garthby, Canada
- Average rainfall days in December: 7.3 days
The month with the highest number of rainy days is August (19.4 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in December
Garthby, Canada
- Average snowfall in December: 323mm
The month with the highest snowfall is January (402mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Garthby, Canada
- Average snowfall days in December: 21.1 days
The month with the highest number of snowfall days is January (22 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Garthby, Canada
- Average daylight in December: 8h and 4min
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: 2h and 3min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 1h and 54min).
Average sunshine days in December
Garthby, Canada
- Average sunshine days in December: 8.2 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is February (6.3 days).
Average UV index in December
Garthby, 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 and December (UV index 1).
Average cloud cover in December
Garthby, Canada
- Average cloud cover in December: 75
The month with the most cloud cover is February (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in December
Garthby, Canada
- Average visibility in December: 7km
The months with the highest visibility are April, May, June, July, August, September, October and November (8km).
The months with the lowest visibility are January and February (6km).
