EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG, MARCH 1999
EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
MARCH 1999
| Date MARCH |
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 | 1018.4 | 22.9 | 19.7 | 17.5 | 14.4 | 72 | 37 | - |
| 2 | 1015.0 | 22.7 | 20.4 | 18.6 | 16.9 | 81 | 51 | - |
| 3 | 1012.4 | 25.8 | 22.1 | 19.5 | 18.4 | 80 | 38 | - |
| 4 | 1010.1 | 24.1 | 21.7 | 19.6 | 18.2 | 81 | 33 | - |
| 5 | 1007.3 | 26.5 | 22.4 | 19.9 | 18.8 | 81 | 3 | - |
| 6 | 1005.9 | 25.1 | 22.5 | 20.4 | 19.8 | 85 | 53 | - |
| 7 | 1006.1 | 26.0 | 23.4 | 21.3 | 19.8 | 81 | 54 | - |
| 8 | 1008.6 | 23.6 | 19.9 | 18.7 | 18.0 | 89 | 98 | 7.9 |
| 9 | 1008.5 | 21.4 | 20.3 | 18.9 | 18.7 | 90 | 97 | 0.2 |
| 10 | 1009.6 | 21.6 | 20.0 | 16.2 | 18.4 | 91 | 99 | Trace |
| 11 | 1013.1 | 16.8 | 15.6 | 14.6 | 12.0 | 80 | 97 | 0.5 |
| 12 | 1011.9 | 16.9 | 16.0 | 15.3 | 13.8 | 86 | 100 | Trace |
| 13 | 1010.4 | 18.0 | 17.2 | 16.2 | 15.9 | 92 | 100 | 0.3 |
| 14 | 1011.2 | 19.0 | 17.8 | 16.7 | 16.5 | 92 | 99 | Trace |
| 15 | 1012.1 | 18.9 | 17.7 | 16.6 | 11.2 | 66 | 80 | - |
| 16 | 1011.0 | 19.2 | 17.7 | 16.6 | 13.8 | 78 | 86 | 0.5 |
| 17 | 1008.8 | 21.4 | 19.5 | 18.0 | 17.9 | 90 | 95 | 3.6 |
| 18 | 1006.0 | 27.5 | 24.7 | 21.1 | 22.6 | 88 | 82 | 1.9 |
| 19 | 1006.4 | 27.4 | 26.0 | 24.8 | 23.3 | 85 | 83 | Trace |
| 20 | 1007.8 | 28.5 | 25.6 | 21.9 | 23.1 | 86 | 87 | Trace |
| 21 | 1011.4 | 21.9 | 19.2 | 15.1 | 18.1 | 93 | 100 | 3.5 |
| 22 | 1017.9 | 16.4 | 15.1 | 12.7 | 12.0 | 82 | 91 | 0.9 |
| 23 | 1017.0 | 18.2 | 17.0 | 15.6 | 14.9 | 87 | 100 | 0.2 |
| 24 | 1014.2 | 22.1 | 19.8 | 17.8 | 18.4 | 92 | 95 | Trace |
| 25 | 1011.8 | 25.1 | 22.4 | 20.1 | 21.0 | 92 | 84 | - |
| 26 | 1010.7 | 28.0 | 25.5 | 23.1 | 22.5 | 84 | 78 | - |
| 27 | 1012.2 | 29.5 | 25.9 | 21.2 | 22.8 | 84 | 67 | 3.4 |
| 28 | 1015.4 | 21.4 | 20.0 | 18.8 | 16.9 | 83 | 92 | 0.1 |
| 29 | 1015.3 | 20.5 | 19.3 | 18.0 | 16.4 | 84 | 93 | 0.5 |
| 30 | 1015.7 | 22.4 | 19.0 | 16.2 | 13.1 | 69 | 57 | Trace |
| 31 | 1015.2 | 23.5 | 20.7 | 18.1 | 15.4 | 72 | 34 | 0.1 |
| Mean/Total | 1011.5 | 22.7 | 20.4 | 18.4 | 17.5 | 84 | 76 | 23.6 |
| Normal | 1016.2 | 21.3 | 18.5 | 16.5 | 15.0 | 81 | 76 | 66.9 |
| Station | Hong Kong Observatory | |||||||
| Date MARCH |
Total Bright Sunshine (hours) |
Daily Global Solar Radiation (MJ/m2) |
Total Evaporation (mm) |
Prevailing Wind Direction (degrees) |
Mean Wind Speed (km/h) |
|---|---|---|---|---|---|
| 1 | 8.3 | 17.13 | 3.5 | 080 | 22.5 |
| 2 | 6.6 | 16.22 | 3.1 | 040 | 22.9 |
| 3 | 7.7 | 17.87 | 3.6 | 030 | 15.8 |
| 4 | 8.5 | 17.24 | 3.3 | 050 | 16.1 |
| 5 | 9.2 | 17.02 | 3.3 | 230 | 7.7 |
| 6 | 6.7 | 14.31 | 3.0 | 090 | 13.9 |
| 7 | 6.2 | 13.54 | 3.1 | 030 | 12.2 |
| 8 | - | 3.21 | 1.0 | 070 | 42.0 |
| 9 | 0.3 | 4.54 | 0.2 | 070 | 34.0 |
| 10 | - | 6.81 | 1.9 | 030 | 28.3 |
| 11 | - | 1.44 | 0.7 | 010 | 32.8 |
| 12 | - | 1.91 | 0.4 | 040 | 29.2 |
| 13 | - | 2.11 | 0.6 | 040 | 30.3 |
| 14 | - | 1.99 | 0.8 | 360 | 18.4 |
| 15 | - | 5.47 | 2.3 | 360 | 18.3 |
| 16 | 0.9 | 4.48 | 0.3 | 050 | 29.8 |
| 17 | - | 3.63 | 0.6 | 050 | 26.0 |
| 18 | 4.5 | 9.72 | 1.7 | 200 | 19.9 |
| 19 | 0.8 | 5.27 | 1.2 | 190 | 21.3 |
| 20 | 0.7 | 7.89 | 2.9 | 140 | 15.6 |
| 21 | - | 1.94 | 2.2 | 050 | 32.3 |
| 22 | - | 3.47 | 0.9 | 360 | 38.4 |
| 23 | - | 4.65 | 0.7 | 070 | 39.6 |
| 24 | 2.7 | 10.45 | 1.7 | 050 | 27.6 |
| 25 | 3.7 | 11.72 | 1.8 | 030 | 16.3 |
| 26 | 4.3 | 14.72 | 3.0 | 160 | 11.8 |
| 27 | 7.7 | 18.59 | 5.3 | 160 | 13.8 |
| 28 | 0.8 | 6.48 | 2.7 | 080 | 49.1 |
| 29 | - | 2.50 | 0.5 | 080 | 38.4 |
| 30 | 9.2 | 20.57 | 3.9 | 010 | 23.7 |
| 31 | 10.6 | 22.93 | 4.3 | 080 | 28.7 |
| Mean/Total | 99.4 | 9.35 | 64.5 | 070 | 25.1 |
| Normal | 96.4 | 11.24 | 92.2 | 070 | 22.1 |
| Station | King's Park | Waglan Island^ | |||
The minimum pressure recorded at the Hong Kong Observatory was 1003.0 hectopascals at 1646 HKT on 18 March.
The maximum air temperature recorded at the Hong Kong Observatory was 29.5 degrees C at 1327 HKT on 27 March.
The minimum air temperature recorded at the Hong Kong Observatory was 12.7 degrees C at 0544 HKT on 22 March.
The maximum gust peak speed recorded at Waglan Island was 72 kilometres per hour from 080 degrees at 0702 HKT on 28 March.
The maximum instantaneous rate of rainfall recorded at King's Park was 51 millimetres per hour at 2113 HKT on 21 March.
^ 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.