EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG, AUGUST 1997
EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
AUGUST 1997
| Date AUGUST |
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 | 999.4 | 29.7 | 27.8 | 25.5 | 25.0 | 85 | 88 | 39.5 |
| 2 | 989.1 | 27.4 | 26.3 | 24.6 | 24.8 | 92 | 97 | 148.4 |
| 3 | 1000.0 | 28.8 | 27.2 | 25.4 | 24.8 | 87 | 97 | 50.2 |
| 4 | 1004.1 | 30.7 | 28.8 | 27.7 | 25.6 | 83 | 88 | 1.3 |
| 5 | 1003.5 | 32.0 | 29.6 | 28.0 | 25.6 | 79 | 78 | Trace |
| 6 | 1002.6 | 32.9 | 29.9 | 27.0 | 25.8 | 79 | 79 | 0.7 |
| 7 | 1002.4 | 30.7 | 27.9 | 24.8 | 25.6 | 87 | 91 | 36.4 |
| 8 | 1004.3 | 28.6 | 26.6 | 23.8 | 24.6 | 89 | 89 | 32.3 |
| 9 | 1005.5 | 30.2 | 29.1 | 27.5 | 26.0 | 84 | 89 | Trace |
| 10 | 1006.6 | 30.5 | 29.1 | 27.3 | 25.9 | 83 | 93 | 8.3 |
| 11 | 1007.1 | 31.4 | 28.9 | 25.6 | 25.6 | 83 | 91 | 37.6 |
| 12 | 1006.6 | 29.9 | 28.1 | 25.2 | 25.5 | 86 | 95 | 77.2 |
| 13 | 1007.2 | 28.5 | 27.2 | 25.7 | 25.2 | 89 | 92 | 23.1 |
| 14 | 1006.7 | 29.6 | 27.7 | 25.6 | 25.9 | 90 | 82 | 18.2 |
| 15 | 1006.0 | 32.2 | 29.0 | 26.9 | 25.3 | 81 | 69 | - |
| 16 | 1004.7 | 30.9 | 27.8 | 26.2 | 25.3 | 87 | 71 | 4.9 |
| 17 | 1001.5 | 31.4 | 28.6 | 26.5 | 24.3 | 78 | 67 | Trace |
| 18 | 997.5 | 33.2 | 29.9 | 26.9 | 22.6 | 66 | 30 | - |
| 19 | 998.3 | 32.4 | 30.1 | 27.9 | 23.0 | 66 | 24 | - |
| 20 | 1001.8 | 32.8 | 29.5 | 26.2 | 24.5 | 75 | 58 | 2.2 |
| 21 | 1001.0 | 29.3 | 27.3 | 25.6 | 24.2 | 83 | 90 | 38.7 |
| 22 | 1002.6 | 27.6 | 26.4 | 24.4 | 25.0 | 92 | 98 | 199.7 |
| 23 | 1005.1 | 29.9 | 27.8 | 26.4 | 25.5 | 88 | 86 | 3.7 |
| 24 | 1006.2 | 28.9 | 26.7 | 24.8 | 25.3 | 93 | 90 | 57.0 |
| 25 | 1006.1 | 30.9 | 27.5 | 25.6 | 25.4 | 89 | 79 | 27.6 |
| 26 | 1006.7 | 30.2 | 27.6 | 25.8 | 24.9 | 85 | 78 | 5.9 |
| 27 | 1006.8 | 30.2 | 27.8 | 24.9 | 24.5 | 83 | 74 | 16.1 |
| 28 | 1004.6 | 32.0 | 29.1 | 26.8 | 24.7 | 78 | 36 | - |
| 29 | 1001.5 | 33.0 | 30.3 | 27.5 | 25.1 | 74 | 23 | - |
| 30 | 1004.1 | 33.1 | 30.5 | 29.3 | 25.9 | 77 | 74 | - |
| 31 | 1007.2 | 32.1 | 29.7 | 28.5 | 25.4 | 78 | 81 | Trace |
| Mean/Total | 1003.4 | 30.7 | 28.4 | 26.3 | 25.1 | 83 | 77 | 829.0 |
| Normal | 1005.1 | 31.3 | 28.4 | 26.3 | 24.8 | 81 | 66 | 391.4 |
| Station | Hong Kong Observatory | |||||||
| Date AUGUST |
Total Bright Sunshine (hours) |
Daily Global Solar Radiation (MJ/m2) |
Total Evaporation (mm) |
Prevailing Wind Direction (degrees) |
Mean Wind Speed (km/h) |
|---|---|---|---|---|---|
| 1 | 4.7 | 15.09 | 3.3 | 080 | 55.0 |
| 2 | - | 4.51 | 1.0 | 090 | 77.0 |
| 3 | - | 5.59 | 5.0 | 230 | 46.2 |
| 4 | 2.5 | 10.88 | 2.8 | 210 | 23.4 |
| 5 | 7.3 | 19.60 | 4.6 | 230 | 21.2 |
| 6 | 7.8 | 21.81 | 5.6 | 230 | 24.2 |
| 7 | 1.3 | 6.67 | 5.4 | 240 | 24.3 |
| 8 | - | 6.14 | 1.4 | 200 | 13.4 |
| 9 | - | 5.56 | 1.7 | 240 | 27.0 |
| 10 | 0.1 | 8.64 | 3.7 | 240 | 25.6 |
| 11 | 6.4 | 14.67 | 6.0 | 200 | 26.4 |
| 12 | - | 2.25 | 4.7 | 210 | 34.5 |
| 13 | - | 4.69 | 4.6 | 180 | 20.0 |
| 14 | 5.3 | 16.41 | 2.9 | 160 | 8.3 |
| 15 | 6.8 | 18.48 | 4.2 | 020 | 10.2 |
| 16 | 2.3 | 7.84 | 2.0 | 270 | 9.5 |
| 17 | 5.8 | 15.58 | 3.8 | 010 | 8.0 |
| 18 | 10.1 | 19.97 | 5.9 | 340 | 14.0 |
| 19 | 7.3 | 17.74 | 4.7 | 310 | 11.4 |
| 20 | 7.0 | 17.54 | 5.6 | 060 | 22.5 |
| 21 | 1.7 | 7.98 | 5.6 | 060 | 60.5 |
| 22 | - | 2.22 | 2.3 | 100 | 43.3 |
| 23 | 7.1 | 17.17 | 5.7 | 120 | 26.0 |
| 24 | 2.8 | 12.51 | 4.1 | 080 | 15.7 |
| 25 | 7.3 | 17.10 | 3.7 | 080 | 24.2 |
| 26 | 7.9 | 18.72 | 6.3 | 080 | 33.6 |
| 27 | 7.5 | 19.57 | 3.4 | 070 | 35.5 |
| 28 | 10.1 | 18.05 | 4.4 | 040 | 18.0 |
| 29 | 10.5 | 20.49 | 5.6 | 310 | 20.1 |
| 30 | 4.7 | 16.11 | 5.3 | 250 | 28.5 |
| 31 | 7.0 | 20.47 | 5.0 | 240 | 32.5 |
| Mean/Total | 141.3 | 13.23 | 130.3 | 240 | 27.1 |
| Normal | 207.0 | 17.61 | 156.9 | 090 | 18.5 |
| Station | King's Park | Waglan Island^ | |||
The minimum pressure recorded at the Hong Kong Observatory was 973.0 hectopascals at 1928 HKT on 2 August.
The maximum air temperature recorded at the Hong Kong Observatory was 33.2 degrees C at 1622 HKT on 18 August.
The minimum air temperature recorded at the Hong Kong Observatory was 23.8 degrees C at 0101 HKT on 8 August.
The maximum gust peak speed recorded at Waglan Island was 137 kilometres per hour from 220 degrees at 2113 HKT on 2 August.
The maximum instantaneous rate of rainfall recorded at Hong Kong Observatory was 258 millimetres per hour t 1243 HKT on 22 August.
^ 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.