EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG, APRIL 2001
EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
APRIL 2001
| 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 | 1017.1 | 22.1 | 20.4 | 19.6 | 17.2 | 82 | 91 | Trace |
| 2 | 1012.6 | 24.0 | 21.9 | 20.0 | 18.9 | 83 | 60 | Trace |
| 3 | 1010.3 | 26.8 | 24.0 | 21.4 | 20.4 | 81 | 66 | - |
| 4 | 1012.2 | 24.2 | 20.7 | 18.8 | 19.4 | 93 | 96 | 41.3 |
| 5 | 1013.6 | 21.4 | 19.9 | 18.5 | 18.1 | 89 | 92 | 17.9 |
| 6 | 1013.3 | 21.0 | 20.2 | 19.5 | 18.9 | 92 | 98 | 5.0 |
| 7 | 1011.9 | 22.3 | 20.8 | 19.7 | 19.5 | 92 | 99 | 0.2 |
| 8 | 1006.3 | 26.4 | 24.3 | 21.0 | 22.5 | 90 | 96 | 0.1 |
| 9 | 1008.7 | 25.2 | 23.1 | 21.4 | 22.3 | 95 | 96 | 46.6 |
| 10 | 1012.7 | 21.8 | 21.4 | 21.0 | 19.5 | 89 | 98 | 0.3 |
| 11 | 1015.7 | 21.1 | 18.1 | 15.6 | 15.3 | 84 | 91 | 4.2 |
| 12 | 1016.6 | 21.1 | 17.8 | 15.0 | 11.0 | 65 | 46 | - |
| 13 | 1016.2 | 20.5 | 19.4 | 18.7 | 15.0 | 76 | 96 | Trace |
| 14 | 1018.3 | 23.0 | 21.1 | 19.7 | 15.8 | 72 | 93 | Trace |
| 15 | 1016.8 | 24.2 | 22.2 | 20.7 | 17.2 | 74 | 59 | - |
| 16 | 1013.2 | 25.8 | 22.6 | 20.7 | 19.2 | 82 | 77 | - |
| 17 | 1010.2 | 26.8 | 23.9 | 22.1 | 21.2 | 85 | 84 | - |
| 18 | 1008.8 | 25.1 | 23.7 | 21.9 | 22.2 | 91 | 93 | 5.4 |
| 19 | 1008.0 | 24.4 | 22.9 | 21.7 | 21.9 | 94 | 95 | 2.3 |
| 20 | 1004.6 | 28.6 | 26.5 | 24.1 | 23.5 | 84 | 87 | Trace |
| 21 | 1005.5 | 27.6 | 25.6 | 23.1 | 23.3 | 87 | 92 | 1.2 |
| 22 | 1010.8 | 23.3 | 21.6 | 19.9 | 19.9 | 90 | 99 | 3.6 |
| 23 | 1012.5 | 22.4 | 20.8 | 19.5 | 19.1 | 90 | 93 | 1.4 |
| 24 | 1012.1 | 26.8 | 23.1 | 21.3 | 21.2 | 89 | 90 | Trace |
| 25 | 1013.3 | 22.9 | 21.6 | 20.2 | 20.0 | 91 | 96 | 3.2 |
| 26 | 1014.7 | 24.2 | 22.0 | 20.1 | 18.8 | 82 | 71 | Trace |
| 27 | 1012.5 | 24.9 | 22.7 | 21.0 | 18.8 | 79 | 73 | - |
| 28 | 1009.8 | 26.2 | 24.2 | 22.8 | 22.5 | 90 | 89 | Trace |
| 29 | 1009.6 | 30.0 | 26.8 | 24.3 | 24.3 | 87 | 83 | 0.3 |
| 30 | 1011.0 | 31.8 | 27.8 | 25.8 | 24.3 | 82 | 67 | - |
| Mean/Total | 1012.0 | 24.5 | 22.4 | 20.6 | 19.7 | 85 | 86 | 133.0 |
| 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 | 0.6 | 7.52 | 2.4 | 080 | 39.6 |
| 2 | 4.7 | 14.83 | 2.7 | 060 | 16.8 |
| 3 | 6.8 | 17.99 | 3.9 | 230 | 7.0 |
| 4 | - | 2.01 | 3.3 | 080 | 34.9 |
| 5 | 0.3 | 7.33 | 1.6 | 070 | 29.9 |
| 6 | - | 2.19 | 0.3 | 050 | 24.2 |
| 7 | - | 5.70 | 0.7 | 040 | 14.0 |
| 8 | 0.1 | 3.02 | 0.4 | 210 | 22.2 |
| 9 | - | 4.59 | 0.8 | 040 | 18.2 |
| 10 | - | 5.70 | 0.9 | 070 | 33.1 |
| 11 | 0.1 | 2.92 | 2.4 | 360 | 31.0 |
| 12 | 8.1 | 21.55 | 4.0 | 010 | 24.5 |
| 13 | 0.1 | 5.16 | 1.9 | 060 | 28.9 |
| 14 | 0.7 | 6.84 | 1.5 | 030 | 16.8 |
| 15 | 7.6 | 20.82 | 5.1 | 070 | 21.7 |
| 16 | 6.0 | 18.12 | 3.3 | 060 | 15.3 |
| 17 | 2.1 | 11.99 | 2.4 | 030 | 5.1 |
| 18 | 0.8 | 6.31 | 1.3 | 100 | 14.1 |
| 19 | 0.2 | 5.44 | 0.7 | 090 | 14.9 |
| 20 | 4.9 | 11.98 | 3.1 | 170 | 22.9 |
| 21 | 0.1 | 3.47 | 1.4 | 210 | 19.4 |
| 22 | - | 3.58 | 0.1 | 070 | 41.8 |
| 23 | 0.6 | 9.21 | 1.6 | 070 | 32.0 |
| 24 | 1.8 | 13.19 | 2.8 | 050 | 12.1 |
| 25 | - | 2.37 | 0.8 | 010 | 18.0 |
| 26 | 8.1 | 20.83 | 4.8 | 070 | 30.8 |
| 27 | 6.6 | 20.31 | 4.4 | 070 | 25.9 |
| 28 | 3.5 | 14.59 | 3.8 | 020 | 13.8 |
| 29 | 6.1 | 16.60 | 3.7 | 170 | 8.9 |
| 30 | 9.1 | 21.24 | 5.2 | 230 | 8.8 |
| Mean/Total | 79.0 | 10.25 | 71.3 | 070 | 21.6 |
| 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 1001.6 hectopascals at 1627 HKT on 20 April.
The maximum air temperature recorded at the Hong Kong Observatory was 31.8 degrees C at 1508 HKT on 30 April.
The minimum air temperature recorded at the Hong Kong Observatory was 15.0 degrees C at 0546 HKT on 12 April.
The maximum gust peak speed recorded at Waglan Island was 68 kilometres per hour from 080 degrees at 1223 HKT on 4 April.
The maximum instantaneous rate of rainfall recorded at King's Park was 330 millimetres per hour at 1747 HKT on 9 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.