Date

Mean Pressure (hPa)

Air Temperature

Mean

Relative

Humidity

(%)

Total

Rainfall

(mm)

Maximum

(deg. C)

Mean

(deg. C)

Minimum

(deg. C)

December 2018

01

1018.3

24.2

22.1

21.1

78

0.0

02

1016.4

24.3

22.4

21.2

83

0.0

03

1016.5

26.0

23.7

22.0

79

0.0

04

1016.0

27.1

24.8

22.7

78

0.0

05

1015.5

24.8

23.6

22.5

82

Trace

06

1015.5

25.1

23.3

21.6

84

0.1

07

1018.5

23.3

21.1

18.5

88

1.0

08

1021.6

19.7

18.0

16.7

76

0.0

09

1021.5

18.3

17.0

16.4

75

Trace

10

1019.7

18.3

17.0

15.1

75

0.2

11

1020.3

20.4

18.0

16.5

68

Trace

12

1024.2

16.5

14.9

13.7

67

0.0

13

1025.1

18.1

15.6

13.5

68

0.0

14

1025.3

18.2

16.8

15.5

72

0.0

15

1023.5

21.2

18.9

17.2

75

0.0

16

1022.0

20.9

19.3

18.0

74

Trace

17

1022.2

21.0

18.0

15.6

56

0.0

18

1022.2

20.2

18.1

16.2

60

0.0

19

1019.5

21.5

19.9

18.5

78

0.0

20

1016.5

23.2

21.6

20.1

84

0.0

21

1016.1

25.0

22.4

21.4

86

0.0

22

1017.0

25.2

22.2

20.0

77

0.0

23

1017.6

22.5

20.1

17.5

89

10.5

24

1017.5

19.0

18.0

16.8

86

0.1

25

1015.5

21.1

19.7

18.5

81

0.0

26

1014.3

23.6

20.9

18.7

84

0.0

27

1016.6

22.8

20.6

18.9

79

Trace

28

1021.6

20.2

18.1

16.3

70

Trace

29

1026.1

16.3

14.0

12.5

68

Trace

30

1026.5

15.4

12.6

10.3

67

Trace

31

1027.0

15.6

13.2

11.8

68

0.0

 

Source: Hong Kong Observatory