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December weather forecast in Williamsville

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

	744 mmHg		76%
	6.2 m/s		+7

30 November, Sunday. day, 7°; night, 1°; rain

1 December, mon

	743 mmHg		75%
	6.9 m/s		+7

1 December, Monday. day, 6°; night, 1°; rain

2 December, tue

	745 mmHg		75%
	6.2 m/s		+7

2 December, Tuesday. day, 4°; night, 0°; rain

3 December, wed

	746 mmHg		75%
	5.9 m/s		+6

3 December, Wednesday. day, 5°; night, 0°; partly cloudy

4 December, thu

	746 mmHg		75%
	6 m/s		+6

4 December, Thursday. day, 5°; night, 1°; clear

5 December, fri

	746 mmHg		74%
	5.9 m/s		+5

5 December, Friday. day, 4°; night, 1°; partly cloudy

6 December, sat

	745 mmHg		74%
	6.3 m/s		+5

6 December, Saturday. day, 3°; night, 0°; rain

7 December, sun

	746 mmHg		74%
	5.9 m/s		+5

7 December, Sunday. day, 2°; night, 0°; overcast

8 December, mon

	748 mmHg		73%
	5.1 m/s		+5

8 December, Monday. day, 2°; night, -2°; partly cloudy

9 December, tue

	747 mmHg		74%
	5.5 m/s		+6

9 December, Tuesday. day, 3°; night, -1°; partly cloudy

10 December, wed

	745 mmHg		76%
	6.2 m/s		+5

10 December, Wednesday. day, 4°; night, 0°; overcast

11 December, thu

	745 mmHg		77%
	6.2 m/s		+5

11 December, Thursday. day, 2°; night, 0°; rain

12 December, fri

	746 mmHg		76%
	6.4 m/s		+5

12 December, Friday. day, 3°; night, -1°; rain

13 December, sat

	748 mmHg		73%
	5.6 m/s		+5

13 December, Saturday. day, 2°; night, -1°; clear

14 December, sun

	747 mmHg		76%
	5.8 m/s		+5

14 December, Sunday. day, 2°; night, -1°; rain

15 December, mon

	747 mmHg		77%
	6.5 m/s		+5

15 December, Monday. day, 3°; night, -1°; rain

16 December, tue

	746 mmHg		74%
	6.4 m/s		+4

16 December, Tuesday. day, 3°; night, 0°; overcast

17 December, wed

	744 mmHg		78%
	6.2 m/s		+4

17 December, Wednesday. day, 3°; night, 0°; rain

18 December, thu

	746 mmHg		77%
	5.6 m/s		+4

18 December, Thursday. day, 1°; night, -1°; overcast

19 December, fri

	746 mmHg		73%
	6 m/s		+4

19 December, Friday. day, 1°; night, -2°; overcast

20 December, sat

	747 mmHg		75%
	5.8 m/s		+4

20 December, Saturday. day, 1°; night, -3°; partly cloudy

21 December, sun

	746 mmHg		76%
	6 m/s		+4

21 December, Sunday. day, 2°; night, -2°; overcast

22 December, mon

	746 mmHg		76%
	6.3 m/s		+4

22 December, Monday. day, 2°; night, -1°; snow

23 December, tue

	746 mmHg		78%
	6.4 m/s		+4

23 December, Tuesday. day, 3°; night, -1°; rain

24 December, wed

	745 mmHg		77%
	6.3 m/s		+5

24 December, Wednesday. day, 2°; night, 0°; rain

25 December, thu

	746 mmHg		78%
	6 m/s		+4

25 December, Thursday. day, 1°; night, -2°; snow

26 December, fri

	747 mmHg		78%
	6.1 m/s		+4

26 December, Friday. day, 1°; night, -2°; snow

27 December, sat

	746 mmHg		80%
	5.7 m/s		+4

27 December, Saturday. day, 1°; night, -2°; snow

28 December, sun

	745 mmHg		78%
	6.4 m/s		+4

28 December, Sunday. day, 3°; night, -1°; overcast

29 December, mon

	744 mmHg		78%
	5.8 m/s		+4

29 December, Monday. day, 2°; night, -1°; overcast

30 December, tue

	744 mmHg		78%
	6 m/s		+4

30 December, Tuesday. day, 2°; night, -1°; overcast

31 December, wed

	745 mmHg		77%
	6.4 m/s		+4

31 December, Wednesday. day, 2°; night, -1°; rain

1 January, thu

	746 mmHg		77%
	6.7 m/s		+3

1 January, Thursday. day, 1°; night, -2°; partly cloudy

2 January, fri

	747 mmHg		76%
	6.5 m/s		+2

2 January, Friday. day, 1°; night, -3°; overcast

3 January, sat

	745 mmHg		78%
	6.3 m/s		+2

3 January, Saturday. day, 0°; night, -2°; rain

Average data for 10 years

Williamsville December

2

sunny days

15

days with precipitation

18

cloudy days

2 sunny days; 15 days with precipitation; 18 cloudy days;

76

%

air humidity

4.3

m/s

WindSW

87

mm of precipitation

(9% of annual average)

+5

°C

Water temperature

air humidity 76%; 87 millimeters of precipitation (9% of annual average); Wind south-westerly 4.3 Meters per second; Water temperature +5°

Weather graphs for December

TemperatureWater temperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

SW

SW

SW

SW

SW

SW

SW

SW

S

SW

SW

SW

SW

S

SW

S

SW

SW

SW

SW

SW

SW

SW

SW

SW

S

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

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31

Daytime temperature

Night-time temperature

Cities near you

Toronto
Ottawa
Pittsburgh
Brooklyn
Burlington
York
London
Buffalo
Cleveland

Cities with similar weather in December

Helsinki
Riga
Tallinn
Stockholm
Reykyavik
Oslo
Yurmala
Aktau
Palanga

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

December in Williamsville is the cloudiest month of the year. In December, the weather in Williamsville is typically cold. Average daily high temperature in December is about 3 degrees above zero. On average, Williamsville has 11 cloudy, 7 rainy, 7 partly cloudy, 4 snowy, and 2 sunny days in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit Williamsville.

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