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Monthly weather forecast in Holtsville

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

15 December, sun

	760 mmHg		63%
	8.6 m/s		+6

15 December, Sunday. day, 5°; night, 5°; partly cloudy

16 December, mon

	761 mmHg		70%
	7.8 m/s		+7

16 December, Monday. day, 5°; night, 4°; overcast

17 December, tue

	758 mmHg		74%
	6.6 m/s		+7

17 December, Tuesday. day, 4°; night, 3°; partly cloudy

18 December, wed

	757 mmHg		70%
	8.1 m/s		+9

18 December, Wednesday. day, 7°; night, 4°; rain

19 December, thu

	760 mmHg		62%
	9.1 m/s		+7

19 December, Thursday. day, 4°; night, 4°; clear

20 December, fri

	758 mmHg		87%
	5.4 m/s		+8

Climate normal

20 December, Friday. day, 3°; night, 0°; sleet

21 December, sat

	759 mmHg		66%
	6.8 m/s		+8

Climate normal

21 December, Saturday. day, 0°; night, -8°; sleet

22 December, sun

	770 mmHg		50%
	6.3 m/s		+7

Climate normal

22 December, Sunday. day, -5°; night, -10°; clear

23 December, mon

	774 mmHg		57%
	1.7 m/s		+7

Climate normal

23 December, Monday. day, -2°; night, 0°; mostly clear

24 December, tue

	766 mmHg		72%
	3 m/s		+7

Climate normal

24 December, Tuesday. day, 2°; night, -1°; sleet

25 December, wed

	768 mmHg		75%
	3.2 m/s		+6

Climate normal

25 December, Wednesday. day, 3°; night, 1°; overcast

26 December, thu

	769 mmHg		78%
	3.2 m/s		+6

Climate normal

26 December, Thursday. day, 4°; night, 2°; sleet

27 December, fri

	769 mmHg		73%
	2.9 m/s		+6

Climate normal

27 December, Friday. day, 6°; night, 2°; overcast

28 December, sat

	767 mmHg		78%
	2.9 m/s		+6

Climate normal

28 December, Saturday. day, 6°; night, 3°; overcast

29 December, sun

	764 mmHg		79%
	5.8 m/s		+9

Climate normal

29 December, Sunday. day, 6°; night, 4°; light rain

30 December, mon

	762 mmHg		80%
	6.4 m/s		+5

Climate normal

30 December, Monday. day, 6°; night, 5°; overcast

31 December, tue

	759 mmHg		78%
	6.5 m/s		+7

Climate normal

31 December, Tuesday. day, 8°; night, 6°; overcast

1 January, wed

	761 mmHg		72%
	4.9 m/s		+8

Climate normal

1 January, Wednesday. day, 9°; night, 7°; partly cloudy

2 January, thu

	771 mmHg		80%
	5.8 m/s		+8

Climate normal

2 January, Thursday. day, 9°; night, 10°; mostly clear

3 January, fri

	770 mmHg		83%
	5.8 m/s		+10

Climate normal

3 January, Friday. day, 12°; night, 13°; mostly clear

4 January, sat

	765 mmHg		89%
	9.3 m/s		+13

Climate normal

4 January, Saturday. day, 14°; night, 14°; partly cloudy

5 January, sun

	756 mmHg		89%
	14.6 m/s		+14

Climate normal

5 January, Sunday. day, 15°; night, 8°; rain

6 January, mon

	759 mmHg		71%
	11.8 m/s		+5

Climate normal

6 January, Monday. day, 6°; night, 5°; clear

7 January, tue

	762 mmHg		68%
	9.4 m/s		+6

Climate normal

7 January, Tuesday. day, 7°; night, 6°; mostly clear

8 January, wed

	766 mmHg		66%
	10.6 m/s		+4

Climate normal

8 January, Wednesday. day, 5°; night, 4°; mostly clear

9 January, thu

	769 mmHg		70%
	10.2 m/s		+8

Climate normal

9 January, Thursday. day, 11°; night, 12°; partly cloudy

10 January, fri

	761 mmHg		93%
	12.5 m/s		+11

Climate normal

10 January, Friday. day, 15°; night, 16°; rain

11 January, sat

	756 mmHg		78%
	22.1 m/s		+14

Climate normal

11 January, Saturday. day, 16°; night, 8°; light rain

12 January, sun

	767 mmHg		66%
	6.1 m/s		+7

Climate normal

12 January, Sunday. day, 8°; night, 11°; clear

13 January, mon

	762 mmHg		73%
	10.5 m/s		+10

Climate normal

13 January, Monday. day, 11°; night, 5°; mostly clear

14 January, tue

	765 mmHg		61%
	10.1 m/s		+3

Climate normal

14 January, Tuesday. day, 4°; night, 6°; mostly clear

15 January, wed

	748 mmHg		78%
	19.1 m/s		+8

Climate normal

15 January, Wednesday. day, 10°; night, 2°; rain

16 January, thu

	764 mmHg		69%
	14.5 m/s		0

Climate normal

16 January, Thursday. day, 1°; night, 3°; mostly clear

17 January, fri

	766 mmHg		67%
	12.3 m/s		+7

Climate normal

17 January, Friday. day, 11°; night, 11°; partly cloudy

18 January, sat

	769 mmHg		72%
	8 m/s		+7

Climate normal

18 January, Saturday. day, 8°; night, 10°; light rain

Average for 30 days

12

sunny days

9

days with precipitation

9

cloudy days

12 sunny days; 9 days with precipitation; 9 cloudy days;

74

%

air humidity

8.4

m/s

WindNW

11

mm of precipitation

(2% of annual average)

+8

°C

Water temperature

air humidity 74%; 11 millimeters of precipitation (2% of annual average); Wind north-westerly 8.4 Meters per second; Water temperature +8°

Forecast in graphs

TemperatureWater temperatureHumidity, %Wind, m/sPressure, mmHg

NE

NW

NW

S

SW

N

N

NE

NE

E

E

E

NW

E

SE

S

S

W

W

NW

SW

SW

NW

NW

NW

NW

W

W

SW

NW

20

Average data for 10 years

21

22

23

24

25

26

27

28

29

30

31

1

January

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

Daytime temperature

Night-time temperature

Weather forecast for the month based on historical data from the last 10 years.

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