EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG, APRIL 2003
EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
APRIL 2003
| Date APRIL |
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 | 1007.8 | 27.9 | 25.5 | 24.2 | 22.6 | 84 | 88 | Trace |
| 2 | 1006.6 | 26.8 | 25.8 | 24.9 | 23.5 | 87 | 88 | 0.8 |
| 3 | 1007.1 | 27.4 | 26.2 | 24.7 | 24.1 | 88 | 88 | 0.3 |
| 4 | 1009.3 | 26.3 | 23.7 | 20.9 | 21.2 | 86 | 91 | 1.3 |
| 5 | 1015.1 | 21.2 | 20.2 | 19.0 | 15.3 | 73 | 88 | - |
| 6 | 1014.8 | 20.2 | 19.4 | 18.7 | 15.3 | 78 | 89 | 0.5 |
| 7 | 1011.7 | 24.0 | 21.1 | 18.8 | 20.2 | 94 | 92 | 11.8 |
| 8 | 1012.4 | 24.2 | 21.6 | 18.7 | 20.6 | 94 | 89 | 65.4 |
| 9 | 1015.0 | 20.1 | 19.1 | 18.2 | 16.9 | 87 | 95 | 1.2 |
| 10 | 1015.2 | 20.0 | 18.8 | 17.8 | 17.8 | 94 | 96 | 2.6 |
| 11 | 1012.9 | 24.4 | 21.8 | 19.8 | 20.9 | 94 | 91 | Trace |
| 12 | 1010.8 | 27.6 | 25.8 | 23.5 | 23.2 | 86 | 86 | - |
| 13 | 1008.7 | 28.6 | 26.6 | 25.0 | 23.0 | 81 | 86 | - |
| 14 | 1012.0 | 27.2 | 23.3 | 21.6 | 18.8 | 77 | 89 | 0.5 |
| 15 | 1015.6 | 22.2 | 21.4 | 20.8 | 17.7 | 80 | 88 | Trace |
| 16 | 1016.9 | 22.9 | 21.6 | 20.4 | 17.9 | 80 | 88 | Trace |
| 17 | 1014.6 | 26.2 | 23.5 | 21.5 | 21.2 | 87 | 84 | Trace |
| 18 | 1012.2 | 27.5 | 24.9 | 23.3 | 22.9 | 89 | 79 | Trace |
| 19 | 1009.5 | 27.8 | 25.4 | 24.0 | 22.8 | 86 | 65 | - |
| 20 | 1011.7 | 27.5 | 25.4 | 24.0 | 22.4 | 84 | 56 | - |
| 21 | 1014.1 | 27.5 | 25.0 | 23.8 | 22.3 | 85 | 78 | Trace |
| 22 | 1014.7 | 28.2 | 24.5 | 22.6 | 20.2 | 77 | 59 | - |
| 23 | 1011.7 | 29.5 | 25.8 | 23.6 | 21.3 | 77 | 52 | - |
| 24 | 1009.5 | 29.8 | 26.5 | 24.3 | 22.2 | 77 | 48 | - |
| 25 | 1010.0 | 29.2 | 27.0 | 25.3 | 22.0 | 75 | 42 | - |
| 26 | 1012.0 | 28.8 | 26.3 | 25.1 | 22.2 | 79 | 74 | - |
| 27 | 1013.6 | 26.7 | 25.0 | 23.9 | 21.7 | 82 | 80 | - |
| 28 | 1014.0 | 27.4 | 25.3 | 23.9 | 21.6 | 80 | 66 | Trace |
| 29 | 1013.4 | 28.8 | 26.1 | 24.4 | 22.9 | 83 | 73 | Trace |
| 30 | 1014.0 | 27.8 | 25.5 | 23.9 | 19.6 | 71 | 80 | 0.1 |
| Mean/Total | 1012.2 | 26.1 | 23.9 | 22.4 | 20.8 | 83 | 79 | 84.5 |
| Normal | 1013.1 | 24.9 | 22.2 | 20.2 | 19.0 | 83 | 78 | 161.5 |
| Station | Hong Kong Observatory | |||||||
| Date APRIL |
Total Bright Sunshine (hours) |
Daily Global Solar Radiation (MJ/m2) |
Total Evaporation (mm) |
Prevailing Wind Direction (degrees) |
Mean Wind Speed (km/h) |
|---|---|---|---|---|---|
| 1 | 1.5 | 7.93 | 2.2 | 190 | 28.0 |
| 2 | - | 2.57 | 0.3 | 210 | 20.3 |
| 3 | 1.4 | 5.44 | 1.3 | 180 | 19.1* |
| 4 | 0.3 | 4.43 | 2.6 | 020 | 20.5 |
| 5 | 0.1 | 8.05 | 2.8 | 010 | 28.0 |
| 6 | 0.1 | 5.11 | 1.4 | 070 | 36.8 |
| 7 | - | 2.09 | 0.5 | 030 | 14.3 |
| 8 | 0.1 | 5.75 | 2.3 | 050 | 24.4 |
| 9 | 1.4 | 10.56 | 2.3 | 070 | 39.7 |
| 10 | - | 1.83 | 0.8 | 050 | 31.0 |
| 11 | - | 5.49 | 0.5 | 130 | 16.1* |
| 12 | 3.9 | 9.30 | 2.0 | 180 | 22.3* |
| 13 | 3.3 | 8.47 | 2.7 | 200 | 19.7 |
| 14 | 1.7 | 10.16 | 3.2 | 010 | 20.1 |
| 15 | - | 4.70 | 2.3 | 050 | 26.1 |
| 16 | 2.1 | 13.10 | 2.6 | 050 | 24.8 |
| 17 | 6.5 | 17.85 | 2.9 | 100 | 19.0* |
| 18 | 7.8 | 19.63 | 4.6 | 110 | 19.2* |
| 19 | 10.4 | 24.27 | 5.8 | 110 | 18.8* |
| 20 | 9.5 | 21.48 | 5.1 | 070 | 15.2 |
| 21 | 7.0 | 14.54 | 4.1 | 080 | 22.0 |
| 22 | 6.4 | 18.16 | 4.1 | 070 | 21.9 |
| 23 | 7.9 | 20.24 | 4.5 | 230 | 12.6 |
| 24 | 10.7 | 23.47 | 6.1 | 220 | 17.7 |
| 25 | 9.7 | 20.50 | 5.6 | 240 | 20.2 |
| 26 | 5.5 | 16.76 | 4.1 | 070 | 15.6 |
| 27 | 6.2 | 17.85 | 4.6 | 070 | 30.3 |
| 28 | 8.2 | 19.28 | 4.2 | 070 | 25.0 |
| 29 | 7.3 | 19.12 | 5.5 | 070 | 14.3 |
| 30 | 3.9 | 14.39 | 3.9 | 010 | 26.2 |
| Mean/Total | 122.9 | 12.42 | 94.9 | 070 | 22.3 |
| Normal | 108.9 | 13.14 | 106.9 | 080 | 19.7 |
| Station | King's Park | Waglan Island^ | |||
The minimum pressure recorded at the Hong Kong Observatory was 1005.1 hectopascals at 1639 HKT on 2 April.
The maximum air temperature recorded at the Hong Kong Observatory was 29.8 degrees C at 1448 HKT on 24 April.
The minimum air temperature recorded at the Hong Kong Observatory was 17.8 degrees C at 0247 HKT on 10 April.
The maximum gust peak speed recorded at Waglan Island was 65 kilometres per hour from 070 degrees at 2252 HKT on 8 April.
The maximum instantaneous rate of rainfall recorded at King's Park was 92 millimetres per hour at 0032 HKT on 8 April.
^ 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.
* Wind data recorded at Cheung Chau were used due to malfunction of power supply at Waglan Island.