EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG, JULY 2003
EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
JULY 2003
| Date JULY |
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 | 1010.9 | 32.1 | 29.3 | 26.7 | 24.6 | 76 | 47 | 7.7 |
| 2 | 1012.0 | 32.7 | 29.8 | 27.8 | 24.0 | 72 | 27 | - |
| 3 | 1011.1 | 33.6 | 30.0 | 27.8 | 23.3 | 68 | 22 | - |
| 4 | 1009.4 | 33.3 | 30.0 | 28.0 | 23.8 | 70 | 44 | - |
| 5 | 1008.9 | 33.1 | 30.0 | 28.2 | 23.6 | 70 | 43 | - |
| 6 | 1009.0 | 32.4 | 29.9 | 28.3 | 24.4 | 73 | 51 | - |
| 7 | 1008.7 | 33.4 | 30.2 | 28.1 | 24.4 | 72 | 46 | Trace |
| 8 | 1008.3 | 33.1 | 29.9 | 26.9 | 24.9 | 75 | 69 | 1.5 |
| 9 | 1008.3 | 33.3 | 30.2 | 28.4 | 24.8 | 73 | 63 | - |
| 10 | 1007.2 | 32.8 | 29.6 | 27.6 | 25.0 | 76 | 69 | 6.9 |
| 11 | 1007.8 | 32.1 | 28.9 | 27.0 | 25.5 | 82 | 77 | 5.9 |
| 12 | 1009.3 | 32.9 | 30.0 | 28.1 | 25.5 | 77 | 63 | 1.6 |
| 13 | 1009.6 | 33.2 | 30.4 | 28.8 | 24.5 | 72 | 41 | Trace |
| 14 | 1008.5 | 32.9 | 30.3 | 28.2 | 24.9 | 73 | 38 | - |
| 15 | 1007.9 | 33.4 | 30.3 | 28.5 | 25.2 | 75 | 35 | - |
| 16 | 1008.4 | 33.0 | 30.0 | 28.2 | 25.3 | 76 | 44 | - |
| 17 | 1008.3 | 32.9 | 29.8 | 27.8 | 24.3 | 73 | 44 | - |
| 18 | 1006.2 | 32.7 | 29.7 | 27.8 | 24.3 | 73 | 76 | - |
| 19 | 1005.1 | 33.3 | 30.1 | 27.8 | 24.8 | 74 | 69 | Trace |
| 20 | 1005.0 | 30.7 | 29.2 | 27.5 | 26.5 | 86 | 86 | 9.9 |
| 21 | 1005.3 | 30.1 | 28.2 | 26.3 | 25.8 | 87 | 79 | 27.3 |
| 22 | 1005.7 | 32.7 | 29.8 | 26.9 | 25.5 | 79 | 48 | Trace |
| 23 | 1001.1 | 32.9 | 29.4 | 26.3 | 24.9 | 77 | 81 | 31.2 |
| 24 | 1003.1 | 29.1 | 28.0 | 26.4 | 24.8 | 83 | 95 | 5.4 |
| 25 | 1009.4 | 31.3 | 28.6 | 27.0 | 25.6 | 84 | 83 | 4.4 |
| 26 | 1011.3 | 30.8 | 28.9 | 27.5 | 25.2 | 81 | 70 | Trace |
| 27 | 1010.3 | 31.6 | 28.7 | 26.7 | 24.6 | 79 | 57 | - |
| 28 | 1009.5 | 32.7 | 29.2 | 27.2 | 23.6 | 73 | 54 | - |
| 29 | 1008.3 | 31.9 | 29.3 | 27.4 | 24.4 | 75 | 48 | - |
| 30 | 1006.2 | 31.4 | 29.3 | 27.7 | 24.8 | 77 | 63 | - |
| 31 | 1005.3 | 32.7 | 29.7 | 27.8 | 24.7 | 75 | 61 | Trace |
| Mean/Total | 1007.9 | 32.4 | 29.6 | 27.6 | 24.8 | 76 | 58 | 101.8 |
| Normal | 1005.3 | 31.5 | 28.8 | 26.6 | 24.9 | 80 | 65 | 323.5 |
| Station | Hong Kong Observatory | |||||||
| Date JULY |
Total Bright Sunshine (hours) |
Daily Global Solar Radiation (MJ/m2) |
Total Evaporation (mm) |
Prevailing Wind Direction (degrees) |
Mean Wind Speed (km/h) |
|---|---|---|---|---|---|
| 1 | 9.5 | 17.97 | 4.3 | 190 | 12.3 |
| 2 | 11.9 | 23.71 | 5.7 | 210 | 7.5 |
| 3 | 12.1 | 25.57 | 7.0 | 210 | 9.5 |
| 4 | 11.2 | 24.60 | 6.1 | 160 | 10.3 |
| 5 | 11.7 | 25.34 | 6.2 | 220 | 15.4 |
| 6 | 11.4 | 23.82 | 6.1 | 230 | 20.9 |
| 7 | 11.2 | 25.78 | 6.1 | 220 | 18.5 |
| 8 | 9.4 | 20.49 | 5.7 | 230 | 17.9 |
| 9 | 11.6 | 21.76 | 5.4 | 140 | 10.8 |
| 10 | 8.7 | 17.92 | 4.7 | 160 | 15.2 |
| 11 | 7.5 | 12.08 | 4.6 | 150 | 26.1 |
| 12 | 10.6 | 20.79 | 3.6 | 160 | 19.3 |
| 13 | 12.2 | 25.48 | 6.9 | 230 | 16.2 |
| 14 | 12.4 | 25.47 | 7.3 | 240 | 20.7 |
| 15 | 12.1 | 25.73 | 6.7 | 240 | 28.2 |
| 16 | 11.7 | 25.93 | 6.4 | 240 | 25.0 |
| 17 | 12.1 | 25.21 | 7.0 | 230 | 21.7 |
| 18 | 9.6 | 23.96 | 5.1 | 230 | 16.5 |
| 19 | 11.7 | 25.42 | 6.8 | 080 | 13.8 |
| 20 | 6.1 | 16.17 | 4.6 | 090 | 22.9 |
| 21 | 7.3 | 16.21 | 5.6 | 120 | 32.9 |
| 22 | 11.4 | 22.25 | 6.4 | 090 | 15.4 |
| 23 | 6.0 | 16.78 | 7.3 | 060 | 53.9 |
| 24 | - | 5.74 | 0.7 | 120 | 53.5 |
| 25 | 4.4 | 13.58 | 3.2 | 140 | 27.7 |
| 26 | 8.1 | 14.83 | 3.6 | 150 | 12.4 |
| 27 | 10.5 | 24.20 | 6.7 | 270 | 18.9 |
| 28 | 10.4 | 24.40 | 7.1 | 210 | 13.9 |
| 29 | 8.0 | 16.54 | 4.2 | 160 | 10.9 |
| 30 | 7.1 | 13.33 | 3.8 | 210 | 7.0 |
| 31 | 5.7 | 13.49 | 3.5 | 190 | 16.0 |
| Mean/Total | 293.6 | 20.47 | 168.4 | 230 | 19.7 |
| Normal | 231.1 | 19.15 | 171.6 | 230 | 20.0 |
| Station | King's Park | Waglan Island^ | |||
The minimum pressure recorded at the Hong Kong Observatory was 997.5 hectopascals at 0433 HKT on 24 July.
The maximum air temperature recorded at the Hong Kong Observatory was 33.6 degrees C at 1531 HKT on 3 July.
The minimum air temperature recorded at the Hong Kong Observatory was 26.3 degrees C at 2207 HKT on 21 July and at 1604 HKT on 23 July.
The maximum gust peak speed recorded at Waglan Island was 117 kilometres per hour from 090 degrees at 2354 HKT on 23 July.
The maximum instantaneous rate of rainfall recorded at King's Park was 253 millimetres per hour at 1950 HKT on 21 July.
^ 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.