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December weather forecast in Calgary

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

30 November, sun

	653 mmHg		69%
	4.19 m/s

30 November, Sunday. day, -1°; night, -9°; clear

1 December, mon

	653 mmHg		70%
	4.19 m/s

1 December, Monday. day, -1°; night, -9°; clear

2 December, tue

	652 mmHg		72%
	4.19 m/s

2 December, Tuesday. day, -1°; night, -9°; rain

3 December, wed

	654 mmHg		70%
	4.1 m/s

3 December, Wednesday. day, -2°; night, -10°; partly cloudy

4 December, thu

	655 mmHg		74%
	4.1 m/s

4 December, Thursday. day, -1°; night, -10°; clear

5 December, fri

	655 mmHg		72%
	4.8 m/s

5 December, Friday. day, -2°; night, -10°; overcast

6 December, sat

	655 mmHg		70%
	4.19 m/s

6 December, Saturday. day, -3°; night, -11°; clear

7 December, sun

	654 mmHg		71%
	4 m/s

7 December, Sunday. day, -3°; night, -11°; clear

8 December, mon

	654 mmHg		72%
	4 m/s

8 December, Monday. day, -3°; night, -11°; partly cloudy

9 December, tue

	654 mmHg		71%
	4.4 m/s

9 December, Tuesday. day, -1°; night, -10°; snow

10 December, wed

	654 mmHg		71%
	4.3 m/s

10 December, Wednesday. day, -2°; night, -9°; overcast

11 December, thu

	653 mmHg		71%
	4.6 m/s

11 December, Thursday. day, -1°; night, -9°; partly cloudy

12 December, fri

	652 mmHg		71%
	4.1 m/s

12 December, Friday. day, -2°; night, -9°; partly cloudy

13 December, sat

	651 mmHg		69%
	4.4 m/s

13 December, Saturday. day, -2°; night, -10°; partly cloudy

14 December, sun

	652 mmHg		69%
	4.4 m/s

14 December, Sunday. day, -2°; night, -9°; overcast

15 December, mon

	652 mmHg		70%
	4.6 m/s

15 December, Monday. day, -3°; night, -10°; clear

16 December, tue

	653 mmHg		70%
	4.6 m/s

16 December, Tuesday. day, -2°; night, -10°; partly cloudy

17 December, wed

	653 mmHg		69%
	4.69 m/s

17 December, Wednesday. day, -1°; night, -9°; clear

18 December, thu

	654 mmHg		70%
	4.6 m/s

18 December, Thursday. day, -2°; night, -10°; snow

19 December, fri

	653 mmHg		69%
	4.6 m/s

19 December, Friday. day, -3°; night, -10°; partly cloudy

20 December, sat

	652 mmHg		69%
	4.6 m/s

20 December, Saturday. day, -3°; night, -11°; partly cloudy

21 December, sun

	653 mmHg		70%
	4.3 m/s

21 December, Sunday. day, -3°; night, -11°; partly cloudy

22 December, mon

	654 mmHg		69%
	3.9 m/s

22 December, Monday. day, -5°; night, -12°; snow

23 December, tue

	654 mmHg		68%
	4.19 m/s

23 December, Tuesday. day, -4°; night, -12°; clear

24 December, wed

	654 mmHg		67%
	4.19 m/s

24 December, Wednesday. day, -2°; night, -11°; partly cloudy

25 December, thu

	654 mmHg		69%
	4.19 m/s

25 December, Thursday. day, -3°; night, -10°; clear

26 December, fri

	653 mmHg		69%
	4.19 m/s

26 December, Friday. day, -3°; night, -12°; clear

27 December, sat

	652 mmHg		70%
	4 m/s

27 December, Saturday. day, -3°; night, -10°; overcast

28 December, sun

	653 mmHg		72%
	4 m/s

28 December, Sunday. day, -3°; night, -11°; snow

29 December, mon

	653 mmHg		75%
	3.6 m/s

29 December, Monday. day, -5°; night, -12°; overcast

30 December, tue

	653 mmHg		75%
	3.8 m/s

30 December, Tuesday. day, -5°; night, -14°; overcast

31 December, wed

	653 mmHg		73%
	3.7 m/s

31 December, Wednesday. day, -5°; night, -13°; overcast

1 January, thu

	653 mmHg		72%
	4.19 m/s

1 January, Thursday. day, -3°; night, -12°; snow

2 January, fri

	653 mmHg		70%
	4.6 m/s

2 January, Friday. day, -2°; night, -11°; snow

3 January, sat

	653 mmHg		70%
	4.4 m/s

3 January, Saturday. day, -3°; night, -12°; partly cloudy

Average data for 10 years

Calgary December

9

sunny days

5

days with precipitation

8

cloudy days

9 sunny days; 5 days with precipitation; 8 cloudy days;

71

%

air humidity

3

m/s

WindSW

20

mm of precipitation

(4% of annual average)

air humidity 71%; 20 millimeters of precipitation (4% of annual average); Wind south-westerly 3 Meters per second

Weather graphs for December

TemperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

SW

W

W

SW

W

W

W

SW

SW

SW

SW

SW

SW

W

SW

SW

SW

SW

W

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Daytime temperature

Night-time temperature

Cities near you

Edmonton
Medicine Hat
Lake Louise
Brooks
Canmore
Bonners Ferry
Kalispell
Coronation
Red Deer

Cities with similar weather in December

Ust-Kamenogorsk
Uralsk
Cholpon-Ata
Atyrau
Baikonur
Ottawa
Nuuk
Balkhash
Gudauri

The weather forecast for December 2025 is based on historical data from the past 10 years.

December in Calgary is the most freezing month of the year. In December, the weather in Calgary is typically freezing. Average daily high temperature in December is about 3 degrees below zero. On average, Calgary has 11 partly cloudy, 9 sunny, 7 cloudy, and 4 snowy days in December. The snowfalls are usually light.

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