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EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG, JANUARY 1997

EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
JANUARY 1997

Date
JANUARY 		Mean
Pressure
(hPa) 		Air   Temperature Mean
Dew Point
Temperature
(deg. C) 		Mean
Relative
Humidity
(%) 		Mean
Amount
of Cloud
(%) 		Total
Rainfall
(mm)
Maximum
(deg. C) 		Mean
(deg. C) 		Minimum
(deg. C)
1 1018.6 22.7 19.8 17.6 15.1 75 2 -
2 1018.9 20.9 19.5 18.3 15.0 75 52 Trace
3 1017.4 18.3 17.0 16.1 14.8 87 96 8.1
4 1018.2 19.0 17.6 16.2 15.3 87 83 1.6
5 1022.0 18.6 16.8 14.6 9.9 64 16 -
6 1024.5 17.0 15.5 13.8 9.1 66 15 -
7 1025.5 17.3 15.6 14.2 9.7 68 49 -
8 1026.7 16.1 14.0 11.5 6.7 62 21 -
9 1025.2 15.3 13.1 11.0 5.1 58 45 -
10 1023.7 17.2 13.7 10.8 4.3 54 3 -
11 1023.8 18.3 14.8 11.2 3.3 47 1 -
12 1022.4 17.6 15.6 13.6 8.7 64 58 -
13 1019.8 18.1 16.8 15.3 10.6 67 82 Trace
14 1018.7 21.4 18.6 16.3 13.9 74 88 0.7
15 1019.0 19.2 17.8 16.6 13.8 78 64 -
16 1018.0 20.4 18.2 16.4 14.3 79 42 -
17 1018.2 20.4 18.6 17.4 14.9 79 34 -
18 1017.5 21.6 19.2 17.2 15.8 81 54 Trace
19 1017.6 20.1 18.4 17.4 14.8 79 79 -
20 1016.1 20.5 18.7 17.1 15.7 83 43 -
21 1017.2 21.4 19.6 18.1 16.3 81 57 Trace
22 1017.5 19.1 17.0 15.3 14.0 82 99 3.3
23 1011.5 19.4 15.9 12.8 15.0 95 100 30.5
24 1015.5 13.9 12.0 10.2 6.6 70 75 0.4
25 1019.9 12.6 11.5 10.2 6.5 71 89 Trace
26 1020.9 16.7 14.2 12.2 6.4 60 36 -
27 1019.8 18.0 15.0 12.4 4.8 51 3 -
28 1018.6 18.8 15.8 12.6 4.7 49 1 -
29 1017.2 19.7 17.3 14.5 9.4 61 6 -
30 1014.3 21.6 19.1 17.4 11.7 62 58 Trace
31 1014.8 23.9 20.6 18.2 16.9 80 20 -
Mean/Total 1019.3 18.9 16.7 14.7 11.1 71 47 44.6
Normal 1020.2 18.6 15.8 13.6 10.2 71 58 23.4
Station Hong   Kong   Observatory
Date
JANUARY 		Total
Bright
Sunshine
(hours) 		Daily
Global Solar
Radiation
(MJ/m2) 		Total
Evaporation
(mm) 		Prevailing
Wind
Direction
(degrees) 		Mean
Wind
Speed
(km/h)
1 8.6 12.21 3.7 030 8.2
2 4.0 10.10 2.2 080 32.0
3 - 2.08 1.3 070 38.4
4 - 2.08 0.1 010 19.7
5 8.4 13.50 3.2 010 39.7
6 8.6 14.15 2.4 070 35.6
7 6.6 12.49 2.5 070 32.7
8 8.6 14.15 2.5 010 29.0
9 6.9 12.80 2.6 010 29.8
10 9.0 13.70 2.9 010 22.5
11 9.3 15.43 3.2 010 18.2
12 4.8 11.17 2.5 070 28.6
13 2.9 9.17 1.4 060 40.8
14 0.2 7.55 1.6 040 24.5
15 6.8 14.24 2.8 060 30.8
16 8.2 14.67 2.4 040 21.6
17 9.3 15.93 2.5 050 24.6
18 5.2 11.88 2.7 030 19.9
19 1.0 6.11 1.1 040 26.0
20 5.4 12.26 2.2 030 23.2
21 6.6 13.77 2.6 030 25.3
22 - 2.12 0.5 080 53.2
23 - 1.93 1.0 090 39.4
24 1.2 7.92 2.0 360 33.7
25 - 4.07 1.2 010 28.8
26 9.0 15.37 3.0 010 19.1
27 9.2 14.26 3.2 360 15.1
28 9.6 16.78 2.6 010 17.2
29 9.5 17.00 3.2 060 25.6
30 5.1 13.65 2.7 040 24.3
31 9.6 17.14 3.1 040 18.3
Mean/Total 173.6 11.28 70.9 060 27.3
Normal 152.4 11.63 97.5 070 24.0
Station King's   Park Waglan   Island^

The minimum pressure recorded at the Royal Observatory was 1006.6 hectopascals at 1646 HKT on 23 January.

The maximum air temperature recorded at the Royal Observatory was 23.9 degrees C at 1250 HKT on 31 January.

The minimum air temperature recorded at the Royal Observatory was 10.2 degrees C at 0645 HKT on 24 January and at 0421 HKT on 25 January.

The maximum gust peak speed recorded at Waglan Island was 83 kilometres per hour from 360 degrees at 2033 HKT on 23 January.

The maximum instantaneous rate of rainfall recorded at King's Park was 80 millimetres per hour at 1651 HKT on 23 January.

^ In case the data are not available from Waglan Island, observations of Cheung Chau or other nearby weather stations will be incorporated in computing the Prevailing Wind Direction and Mean Wind Speed.