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September weather forecast in Mount Vernon

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

1 September, sun

	748 mmHg		74%
	3 m/s		+15

1 September, Sunday. day, 18°; night, 15°; partly cloudy

2 September, mon

	748 mmHg		73%
	3.2 m/s		+15

2 September, Monday. day, 18°; night, 15°; rain

3 September, tue

	748 mmHg		70%
	3.5 m/s		+15

3 September, Tuesday. day, 18°; night, 15°; clear

4 September, wed

	748 mmHg		69%
	3.4 m/s		+15

4 September, Wednesday. day, 17°; night, 15°; rain

5 September, thu

	747 mmHg		74%
	3.7 m/s		+14

5 September, Thursday. day, 17°; night, 15°; rain

6 September, fri

	747 mmHg		73%
	3.2 m/s		+15

6 September, Friday. day, 18°; night, 16°; clear

7 September, sat

	748 mmHg		70%
	3 m/s		+15

7 September, Saturday. day, 18°; night, 16°; partly cloudy

8 September, sun

	748 mmHg		74%
	3.2 m/s		+15

8 September, Sunday. day, 18°; night, 15°; clear

9 September, mon

	749 mmHg		73%
	3.2 m/s		+15

9 September, Monday. day, 18°; night, 16°; clear

10 September, tue

	749 mmHg		62%
	3.2 m/s		+15

10 September, Tuesday. day, 20°; night, 16°; clear

11 September, wed

	748 mmHg		66%
	3.5 m/s		+15

11 September, Wednesday. day, 18°; night, 15°; clear

12 September, thu

	747 mmHg		68%
	3.2 m/s		+15

12 September, Thursday. day, 17°; night, 14°; rain

13 September, fri

	746 mmHg		67%
	2.9 m/s		+15

13 September, Friday. day, 17°; night, 15°; clear

14 September, sat

	746 mmHg		66%
	2.7 m/s		+15

14 September, Saturday. day, 18°; night, 15°; partly cloudy

15 September, sun

	747 mmHg		67%
	2.7 m/s		+15

15 September, Sunday. day, 17°; night, 15°; clear

16 September, mon

	746 mmHg		72%
	3.4 m/s		+15

16 September, Monday. day, 17°; night, 14°; rain

17 September, tue

	745 mmHg		75%
	3.2 m/s		+15

17 September, Tuesday. day, 17°; night, 14°; rain

18 September, wed

	746 mmHg		76%
	3.4 m/s		+15

18 September, Wednesday. day, 17°; night, 14°; clear

19 September, thu

	746 mmHg		75%
	3.4 m/s		+14

19 September, Thursday. day, 16°; night, 13°; clear

20 September, fri

	746 mmHg		73%
	3.2 m/s		+14

20 September, Friday. day, 16°; night, 14°; clear

21 September, sat

	746 mmHg		73%
	3.5 m/s		+15

21 September, Saturday. day, 17°; night, 14°; partly cloudy

22 September, sun

	747 mmHg		73%
	4 m/s		+15

22 September, Sunday. day, 17°; night, 14°; rain

23 September, mon

	747 mmHg		75%
	4.4 m/s		+14

23 September, Monday. day, 16°; night, 14°; overcast

24 September, tue

	747 mmHg		76%
	3.9 m/s		+15

24 September, Tuesday. day, 16°; night, 14°; clear

25 September, wed

	749 mmHg		81%
	4.8 m/s		+14

25 September, Wednesday. day, 15°; night, 13°; rain

26 September, thu

	749 mmHg		80%
	3.5 m/s		+15

26 September, Thursday. day, 15°; night, 14°; partly cloudy

27 September, fri

	746 mmHg		75%
	3.5 m/s		+15

27 September, Friday. day, 16°; night, 13°; clear

28 September, sat

	745 mmHg		74%
	4.4 m/s		+14

28 September, Saturday. day, 15°; night, 13°; rain

29 September, sun

	747 mmHg		75%
	3.4 m/s		+14

29 September, Sunday. day, 14°; night, 12°; rain

30 September, mon

	749 mmHg		75%
	3.2 m/s		+14

30 September, Monday. day, 14°; night, 12°; clear

1 October, tue

	749 mmHg		75%
	3.9 m/s		+14

1 October, Tuesday. day, 15°; night, 12°; rain

2 October, wed

	748 mmHg		73%
	4.1 m/s		+14

2 October, Wednesday. day, 14°; night, 12°; clear

3 October, thu

	747 mmHg		67%
	4.3 m/s		+14

3 October, Thursday. day, 15°; night, 12°; partly cloudy

4 October, fri

	747 mmHg		72%
	3.7 m/s		+14

4 October, Friday. day, 15°; night, 12°; rain

5 October, sat

	747 mmHg		69%
	3.5 m/s		+14

5 October, Saturday. day, 15°; night, 12°; partly cloudy

Average data for 10 years

Mount Vernon September

14

sunny days

10

days with precipitation

6

cloudy days

14 sunny days; 10 days with precipitation; 6 cloudy days;

73

%

air humidity

2.2

m/s

WindE

66

mm of precipitation

(5% of annual average)

+15

°C

Water temperature

air humidity 73%; 66 millimeters of precipitation (5% of annual average); Wind easterly 2.2 Meters per second; Water temperature +15°

Weather graphs for September

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

NW

NW

NW

W

SE

NW

N

N

N

N

NW

NW

N

E

E

SE

SE

SE

E

N

SE

SE

SE

SE

SE

N

N

E

N

S

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

Daytime temperature

Night-time temperature

Cities near you

Vancouver
Seattle
Portland
Victoria
Salem
Campbell River
Vancouver
Aberdeen
Bellingham

Cities with similar weather in September

Sydney
Copenhagen
Balkhash
Montreal
Bruges
Liverpool
Brighton
Rostock
Lubek

The weather forecast for September 2024 is based on historical data from the past 10 years.

In September, the weather in Mount Vernon is typically warm. Average daily high temperature in September is about 17 degrees above zero. On average, Mount Vernon has 14 sunny, 10 rainy, 5 partly cloudy, and 1 cloudy day in September. The rains are usually moderate.

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