EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG, JULY 2002
EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
JULY 2002
| 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 | 1004.7 | 31.5 | 29.5 | 25.9 | 25.6 | 80 | 88 | 11.5 |
| 2 | 1005.8 | 31.7 | 28.7 | 26.3 | 25.4 | 83 | 88 | 4.7 |
| 3 | 1004.4 | 32.5 | 29.3 | 27.3 | 25.4 | 80 | 78 | Trace |
| 4 | 1001.3 | 32.5 | 29.5 | 27.1 | 25.1 | 78 | 50 | 12.0 |
| 5 | 1000.3 | 33.6 | 30.4 | 28.2 | 26.1 | 78 | 60 | - |
| 6 | 999.8 | 30.7 | 28.8 | 26.7 | 26.3 | 86 | 86 | 5.6 |
| 7 | 997.9 | 30.3 | 28.3 | 26.8 | 25.4 | 85 | 86 | 12.5 |
| 8 | 996.9 | 32.2 | 28.5 | 25.8 | 24.3 | 79 | 86 | 0.5 |
| 9 | 996.7 | 32.7 | 28.9 | 26.5 | 24.2 | 77 | 80 | 9.3 |
| 10 | 998.1 | 32.0 | 29.5 | 26.9 | 24.2 | 74 | 73 | - |
| 11 | 1000.1 | 32.8 | 30.3 | 27.2 | 25.4 | 76 | 69 | Trace |
| 12 | 1001.0 | 33.3 | 30.4 | 28.4 | 24.9 | 73 | 39 | - |
| 13 | 1000.4 | 33.3 | 30.8 | 28.7 | 25.8 | 75 | 60 | - |
| 14 | 1000.0 | 33.1 | 30.8 | 28.5 | 26.6 | 79 | 57 | Trace |
| 15 | 1001.4 | 32.7 | 30.5 | 29.0 | 25.9 | 77 | 55 | Trace |
| 16 | 1002.9 | 30.3 | 28.2 | 26.1 | 25.1 | 84 | 82 | 24.3 |
| 17 | 1004.3 | 32.1 | 29.3 | 25.2 | 25.8 | 82 | 90 | 38.2 |
| 18 | 1003.6 | 30.9 | 29.7 | 28.7 | 25.7 | 79 | 88 | 0.9 |
| 19 | 1005.0 | 30.3 | 29.5 | 28.6 | 25.6 | 80 | 90 | 0.2 |
| 20 | 1007.2 | 30.4 | 29.3 | 26.7 | 25.9 | 82 | 88 | 8.8 |
| 21 | 1007.5 | 32.3 | 29.2 | 26.6 | 25.6 | 82 | 83 | 0.8 |
| 22 | 1006.6 | 31.9 | 28.0 | 25.3 | 24.9 | 83 | 86 | 17.9 |
| 23 | 1005.3 | 30.5 | 28.0 | 24.7 | 24.8 | 83 | 83 | 8.0 |
| 24 | 1004.5 | 31.8 | 29.2 | 27.5 | 25.4 | 81 | 81 | Trace |
| 25 | 1002.1 | 32.1 | 29.4 | 26.6 | 25.5 | 80 | 83 | 0.9 |
| 26 | 1001.0 | 31.4 | 27.9 | 25.5 | 25.2 | 86 | 89 | 41.8 |
| 27 | 1003.7 | 28.1 | 27.0 | 26.1 | 25.7 | 93 | 88 | 17.7 |
| 28 | 1006.1 | 28.7 | 26.7 | 25.2 | 25.2 | 92 | 88 | 16.0 |
| 29 | 1006.4 | 28.6 | 26.0 | 24.5 | 24.8 | 93 | 88 | 71.8 |
| 30 | 1006.9 | 28.6 | 26.8 | 25.6 | 25.5 | 93 | 90 | 7.0 |
| 31 | 1006.1 | 28.4 | 27.0 | 25.8 | 25.5 | 92 | 88 | 10.4 |
| Mean/Total | 1002.8 | 31.3 | 28.9 | 26.7 | 25.4 | 82 | 79 | 320.8 |
| 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 | 2.8 | 14.05 | 4.0 | 180 | 22.4 |
| 2 | 3.1 | 13.03 | 3.2 | 140 | 19.0 |
| 3 | 5.5 | 12.55 | 4.3 | 240 | 6.4 |
| 4 | 8.5 | 16.65 | 6.1 | 220 | 9.7 |
| 5 | 8.9 | 16.04 | 6.8 | 210 | 8.0 |
| 6 | 3.5 | 12.57 | 3.3 | 040 | 15.1 |
| 7 | 2.3 | 8.85 | 4.5 | 010 | 11.5 |
| 8 | 3.5 | 12.13 | 3.4 | 360 | 18.5 |
| 9 | 7.9 | 16.85 | 5.2 | 340 | 8.9 |
| 10 | 8.2 | 16.73 | 4.6 | 010 | 8.0 |
| 11 | 9.5 | 21.38 | 5.8 | 230 | 19.4 |
| 12 | 11.3 | 23.21 | 6.2 | 230 | 18.5 |
| 13 | 10.0 | 21.26 | 5.6 | 200 | 12.0 |
| 14 | 10.8 | 23.66 | 6.6 | 130 | 13.3 |
| 15 | 11.6 | 23.53 | 6.5 | 100 | 16.5 |
| 16 | 1.7 | 10.07 | 4.7 | 230 | 33.2 |
| 17 | 1.7 | 11.19 | 3.0 | 220 | 39.9 |
| 18 | 3.3 | 13.27 | 4.2 | 220 | 40.8 |
| 19 | - | 6.96 | 2.5 | 220 | 32.3 |
| 20 | 1.7 | 9.67 | 2.6 | 180 | 24.5 |
| 21 | 10.0 | 19.44 | 5.1 | 150 | 18.6 |
| 22 | 5.9 | 12.65 | 4.7 | 150 | 16.8 |
| 23 | 4.2 | 10.56 | 2.6 | 130 | 19.7* |
| 24 | 9.1 | 18.99 | 4.1 | 140 | 18.3* |
| 25 | 8.2 | 19.86 | 5.8 | 220 | 13.6 |
| 26 | 1.4 | 8.87 | 4.8 | 220 | 13.3 |
| 27 | - | 5.48 | 1.0 | 090 | 8.1 |
| 28 | 4.4 | 10.48 | 5.6 | 050 | 24.6 |
| 29 | 2.5 | 7.69 | 4.1 | 060 | 23.0 |
| 30 | 1.8 | 7.54 | 0.9 | 080 | 11.4 |
| 31 | 2.2 | 7.64 | 1.4 | 090 | 10.3 |
| Mean/Total | 165.5 | 13.96 | 133.2 | 220 | 17.9 |
| 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 994.6 hectopascals at 1639 HKT on 8 July.
The maximum air temperature recorded at the Hong Kong Observatory was 33.6 degrees C at 1514 HKT on 5 July.
The minimum air temperature recorded at the Hong Kong Observatory was 24.5 degrees C at 0325 HKT on 29 July.
The maximum gust peak speed recorded at Waglan Island was 77 kilometres per hour from 230 degrees at 1416 HKT and 1447 HKT on 16 July.
The maximum instantaneous rate of rainfall recorded at King's Park was 232 millimetres per hour at 0147 HKT on 17 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.
* Wind data recorded at Cheung Chau were used for 23 and 24 July due to malfunction of A/C supply at Waglan Island.