December weather forecast
Jasper, Canada

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December

Weather in December

Closing out the year, December's weather in Jasper remains definitively cold, with temperatures reaching average lows of -15.5°C (4.1°F). The city is an epitome of a white Christmas with 223mm (8.78") of snowfall decorating the cityscape. The limited sunshine and shorter daylight hours further enhance Jasper's wintry essence, blending with the holiday spirit prevalent at this time. This winter period is savoured for its sparkling snow-covered landscapes that craft beautiful outdoor settings. Despite the biting cold, Jasper's December weather exudes a unique charm, providing an unforgettable end to the year.

Temperature

December, with an average high of -8.2°C (17.2°F) and a low of -15.5°C (4.1°F), signifies the coldest month of the year in Jasper.

Humidity

January, February and December, with an average relative humidity of 92%, are the most humid months.

Rainfall

December is the month with the least rainfall. Rain falls for 10.2 days and accumulates 27mm (1.06") of precipitation.

Snowfall

Months with snowfall in Jasper are January through May, September through December. In December, it is snowing for 19.6 days. Throughout December, 223mm (8.78") of snow is accumulated. In Jasper, Canada, during the entire year, snow falls for 135.5 days and aggregates up to 1709mm (67.28") of snow.

Daylight

December has the shortest days of the year in Jasper, Canada, with an average of 7h and 42min of daylight.
On the first day of December in Jasper, sunrise is at 8:43 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 9:04 am and sunset at 4:46 pm MST.

Sunshine

In December, the average sunshine is 4.4h.

UV index

In Jasper, Canada, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 2 during December leads to these instructions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Updated: Feb 4, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Jasper?
December, marked by an average high-temperature of -8.2°C (17.2°F) and a low-temperature of -15.5°C (4.1°F), is the coldest month.
How cold is it in Jasper in December?
The high-temperature, in December, in Jasper, is -8.2°C (17.2°F), while the low-temperature averages to -15.5°C (4.1°F).
What is the most humid month in Jasper?
January, February and December, with an average relative humidity of 92%, are most humid months.
What is the average humidity in December in Jasper?
The average relative humidity in December in Jasper, Canada, is 92%.
What is the driest month in Jasper?
The month with the least rainfall in Jasper, Canada, is December, when the rain falls for 10.2 days and typically collects 27mm (1.06") of precipitation.
How much does it rain in Jasper in December?
In December, in Jasper, the rain falls for 10.2 days. Throughout December, 27mm (1.06") of precipitation is accumulated.
How much does it snow in Jasper in December?
In Jasper, in December, snow falls for 19.6 days, with typically accumulated 223mm (8.78") of snow.
What is the month with the shortest days in Jasper?
December has the shortest days of the year in Jasper, Canada, with an average of 7h and 42min of daylight.
What is the average length of the day in December in Jasper?
In December, the average day length is 7h and 41min.
When are sunrise and sunset in December in Jasper?
In December, on the first day of the month, sunrise is at 8:43 am and sunset at 4:40 pm. On the last day of the month, in Jasper, Canada, sunrise is at 9:04 am and sunset at 4:46 pm MST.
How long on average sun shines in December in Jasper?
The average sunshine duration in December in Jasper is 4.4h.
What is the UV index reading in December in Jasper?
In Jasper, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJFMAMJJASONDecember
Nov
December
Jan
Average high temperature
-4.2°C
-8.2°C
-6.7°C
Average low temperature
-10.9°C
-15.5°C
-14.6°C
Average pressure
1016.5mbar
1019.2mbar
1019mbar
Average wind speed
10.4km/h
9.7km/h
10.2km/h
Average max. wind speed
10.9km/h
10.2km/h
10.8km/h
Average wind speed gusts
19km/h
18.8km/h
19.6km/h
Average humidity
89%
92%
92%
Average rainfall
43mm
27mm
34mm
Average rainfall days
11.9
10.2
9.6
Average snowfall
268mm
223mm
261mm
Average snowfall days
19
19.6
21
Average daylight
8h 4min
7h 4min
8h 2min
Average sunshine
5h 3min
4h 2min
4h 0min
Average sunshine days
8.7
11.5
9.8
Average UV index
1
2
1
Average cloud cover
50%
52%
56%
Average visibility
7km
7km
6km
Average temperature in December
Jasper, Canada
  • Average high temperature in December: -8.2°C

The warmest month (with the highest average high temperature) is July (17.3°C).
The month with the lowest average high temperature is December (-8.2°C).

  • Average low temperature in December: -15.5°C

The month with the highest average low temperature is July (6.1°C).
The coldest month (with the lowest average low temperature) is February (-16.6°C).

Average pressure in December
Jasper, Canada
  • Average pressure in December: 1019.2mbar

The month with the highest atmospheric pressure is December (1019.2mbar).
The month with the lowest atmospheric pressure is June (1012.2mbar).

Average wind speed in December
Jasper, Canada
  • Average wind speed in December: 9.7km/h

The windiest month (with the highest average wind speed) is November (10.4km/h).
The calmest month (with the lowest average wind speed) is May (7.6km/h).

Average humidity in December
Jasper, Canada
  • Average humidity in December: 92%

The months with the highest relative humidity are January, February and December (92%).
The month with the lowest relative humidity is August (64%).

Average rainfall in December
Jasper, Canada
  • Average rainfall in December: 27mm

The wettest month (with the highest rainfall) is June (83mm).
The driest month (with the least rainfall) is December (27mm).

Average rainfall days in December
Jasper, Canada
  • Average rainfall days in December: 10.2 days

The month with the highest number of rainy days is June (21.4 days).
The month with the least rainy days is February (9.3 days).

Average snowfall in December
Jasper, Canada
  • Average snowfall in December: 223mm

The month with the highest snowfall is March (274mm).
The months with the least snowfall are June, July and August (0mm).

Average snowfall days in December
Jasper, Canada
  • Average snowfall days in December: 19.6 days

The month with the highest number of snowfall days is March (22.7 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in December /
Average sunshine in December
Jasper, Canada
  • Average daylight in December: 7h and 4min

The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).

  • Average sunshine in December: 4h and 2min

The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in December
Jasper, Canada
  • Average sunshine days in December: 11.5 days

The month with the most sunshine days is September (12 days).
The month with the least sunshine days is April (4.4 days).

Average UV index in December
Jasper, Canada
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, March and November (UV index 1).

Average cloud cover in December
Jasper, Canada
  • Average cloud cover in December: 52

The months with the most cloud cover are January and March (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in December
Jasper, Canada
  • Average visibility in December: 7km

The months with the highest visibility are May, June, July, August and September (9km).
The months with the lowest visibility are January, February and March (6km).

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