Date

Mean Pressure (hPa)

Air Temperature

Mean

Relative

Humidity

(%)

Total

Rainfall

(mm)

Maximum

(deg. C)

Mean

(deg. C)

Minimum

(deg. C)

May 2018

01

1012.5

30.6

27.3

25.4

80

Trace

02

1012.4

31.8

27.9

25.6

75

0

03

1014.1

33.5

27.1

22.9

80

1.9

04

1016.1

25.1

23.8

22.1

82

0.8

05

1015.5

27.7

25.3

23.6

82

Trace

06

1011.3

31

27.6

25.4

80

1

07

1007.2

29.6

28

24.4

82

6.7

08

1008.3

27.1

25.2

23.7

91

28.4

09

1012.9

25.7

24.6

22.8

88

5.4

10

1015

23.9

23

22.2

89

8

11

1014.2

25.3

23.8

22.3

86

1

12

1012.3

30.6

26.5

24.2

82

0

13

1011

31.5

27.7

25.3

79

0

14

1010

31.9

28.6

26.6

77

0

15

1009.3

32.3

28.7

27.1

76

0

16

1008.8

32.2

28.6

26.1

74

0

17

1008.2

33.1

29.4

27.4

75

0

18

1007.7

33.4

29.8

27.7

74

0

19

1007.7

33.4

29.8

27.8

74

0

20

1008.4

34.5

30.1

27.8

72

0

21

1009.5

34.7

30.3

28.1

71

0

22

1010.5

34.8

30.4

27.9

69

0

23

1009.6

35.1

30.5

27.6

69

0

24

1009.3

33.5

30

28.4

73

0

25

1008.2

33.1

29.8

27.6

71

Trace

26

1008.3

34.7

30.7

28.8

72

0.9

27

1008.9

33.4

30

26.9

76

3.4

28

1009

34.5

30.3

27.8

72

0

29

1009.6

35.3

31.1

28.3

69

0

30

1009.7

35.4

31.2

29

69

0

31

1009.7

34.8

31.1

28.9

70

0

Source: Hong Kong Observatory – Hong Kong Observatory