EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG, MAY 2004
EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
MAY 2004
| Date MAY |
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 | 1009.6 | 28.6 | 26.0 | 24.3 | 22.9 | 84 | 49 | - |
| 2 | 1010.4 | 29.1 | 26.3 | 24.9 | 23.7 | 86 | 64 | - |
| 3 | 1010.0 | 30.6 | 27.4 | 25.1 | 23.5 | 80 | 52 | - |
| 4 | 1011.3 | 27.8 | 25.1 | 22.3 | 21.8 | 83 | 76 | Trace |
| 5 | 1013.4 | 24.4 | 22.2 | 19.0 | 18.1 | 78 | 81 | 6.4 |
| 6 | 1014.2 | 26.1 | 24.1 | 22.5 | 20.7 | 82 | 77 | - |
| 7 | 1011.8 | 25.8 | 24.2 | 23.3 | 20.4 | 79 | 84 | - |
| 8 | 1006.4 | 25.3 | 24.4 | 23.0 | 22.8 | 91 | 89 | 124.4 |
| 9 | 1008.2 | 30.5 | 26.4 | 23.5 | 22.3 | 79 | 26 | - |
| 10 | 1009.5 | 30.7 | 27.3 | 24.7 | 23.5 | 80 | 52 | - |
| 11 | 1008.7 | 28.9 | 27.2 | 25.9 | 24.5 | 86 | 63 | - |
| 12 | 1005.5 | 30.4 | 28.0 | 26.2 | 24.3 | 81 | 79 | - |
| 13 | 1006.5 | 30.6 | 28.5 | 27.5 | 24.8 | 80 | 86 | Trace |
| 14 | 1010.2 | 28.1 | 26.2 | 23.7 | 24.4 | 90 | 87 | 31.6 |
| 15 | 1010.7 | 28.5 | 26.1 | 24.5 | 24.1 | 89 | 77 | 1.5 |
| 16 | 1009.7 | 30.4 | 27.6 | 25.7 | 24.5 | 83 | 55 | Trace |
| 17 | 1011.1 | 28.5 | 26.4 | 25.1 | 21.5 | 75 | 81 | - |
| 18 | 1009.1 | 27.7 | 25.7 | 24.6 | 22.4 | 82 | 87 | Trace |
| 19 | 1004.7 | 27.4 | 26.2 | 24.9 | 23.1 | 83 | 88 | 1.6 |
| 20 | 1002.9 | 27.3 | 25.3 | 23.5 | 21.7 | 81 | 79 | 1.1 |
| 21 | 1002.2 | 25.9 | 23.4 | 21.9 | 21.6 | 90 | 88 | 16.9 |
| 22 | 1004.4 | 25.4 | 23.9 | 22.3 | 20.9 | 84 | 88 | 0.2 |
| 23 | 1006.5 | 28.5 | 25.9 | 23.6 | 21.5 | 77 | 46 | - |
| 24 | 1008.3 | 29.0 | 26.4 | 24.3 | 21.0 | 73 | 53 | Trace |
| 25 | 1009.3 | 28.2 | 26.4 | 25.0 | 23.5 | 84 | 80 | Trace |
| 26 | 1010.0 | 29.3 | 27.3 | 25.6 | 24.1 | 83 | 47 | Trace |
| 27 | 1010.6 | 31.4 | 28.5 | 26.6 | 24.8 | 80 | 59 | - |
| 28 | 1009.3 | 31.0 | 28.4 | 25.8 | 24.8 | 81 | 78 | 10.1 |
| 29 | 1008.7 | 29.6 | 27.3 | 26.1 | 24.1 | 83 | 86 | 0.6 |
| 30 | 1009.4 | 30.1 | 28.1 | 26.4 | 24.4 | 81 | 81 | - |
| 31 | 1011.0 | 32.4 | 29.0 | 27.0 | 24.1 | 76 | 57 | - |
| Mean/Total | 1008.8 | 28.6 | 26.3 | 24.5 | 22.9 | 82 | 71 | 194.4 |
| Normal | 1009.1 | 28.7 | 25.9 | 23.9 | 22.6 | 83 | 74 | 316.7 |
| Station | Hong Kong Observatory | |||||||
| Date MAY |
Total Bright Sunshine (hours) |
Daily Global Solar Radiation (MJ/m2) |
Total Evaporation (mm) |
Prevailing Wind Direction (degrees) |
Mean Wind Speed (km/h) |
|---|---|---|---|---|---|
| 1 | 10.0 | 22.29 | 5.1 | 120 | 7.0 |
| 2 | 8.6 | 22.41 | 5.9 | 090 | 10.1 |
| 3 | 10.2 | 23.40 | 4.4 | 160 | 10.8 |
| 4 | 1.5 | 11.38 | 3.2 | 020 | 14.1 |
| 5 | - | 9.24 | 2.7 | 010 | 13.8 |
| 6 | 2.5 | 16.24 | 3.6 | 090 | 21.3 |
| 7 | 4.7 | 17.84 | 3.0 | 090 | 30.1 |
| 8 | 0.1 | 5.18 | 0.7 | 240 | 20.7 |
| 9 | 11.2 | 25.06 | 5.3 | 180 | 9.8 |
| 10 | 9.1 | 21.64 | 5.0 | 130 | 10.3 |
| 11 | 10.3 | 19.66 | 5.2 | 120 | 13.4 |
| 12 | 5.8 | 13.56 | 5.4 | 190 | 10.7 |
| 13 | 3.8 | 12.24 | 5.2 | 220 | 12.8 |
| 14 | 0.5 | 6.75 | 1.4 | 090 | 22.8 |
| 15 | 4.5 | 14.26 | 3.4 | 090 | 23.9 |
| 16 | 10.4 | 22.68 | 5.7 | 050 | 9.6 |
| 17 | 1.9 | 12.81 | 3.2 | 020 | 17.2 |
| 18 | 1.6 | 11.21 | 3.1 | 060 | 13.9 |
| 19 | 0.6 | 10.62 | 2.5 | 240 | 6.7 |
| 20 | 4.3 | 15.99 | 4.2 | 270 | 16.8 |
| 21 | - | 4.85 | 0.9 | 020 | 15.9 |
| 22 | 0.6 | 10.86 | 2.8 | 080 | 20.8 |
| 23 | 11.3 | 22.53 | 6.6 | 100 | 16.8 |
| 24 | 9.5 | 23.49 | 5.6 | 090 | 26.0 |
| 25 | 5.5 | 14.72 | 3.2 | 070 | 27.3 |
| 26 | 6.3 | 12.65 | 3.6 | 120 | 8.2 |
| 27 | 8.2 | 18.40 | 4.5 | 020 | 8.0 |
| 28 | 4.3 | 12.80 | 4.0 | 220 | 13.3 |
| 29 | 0.9 | 9.80 | 3.1 | 240 | 13.4 |
| 30 | 4.2 | 12.76 | 3.0 | 180 | 14.4 |
| 31 | 11.1 | 23.30 | 7.0 | 170 | 7.5 |
| Mean/Total | 163.5 | 15.50 | 122.5 | 090 | 15.1 |
| Normal | 153.8 | 16.12 | 137.7 | 090 | 19.2 |
| Station | King's Park | Waglan Island^ | |||
The minimum pressure recorded at the Hong Kong Observatory was 1000.6 hectopascals at 1535 HKT on 21 May.
The maximum air temperature recorded at the Hong Kong Observatory was 32.4 degrees C at 1433 HKT on 31 May.
The minimum air temperature recorded at the Hong Kong Observatory was 19.0 degrees C at 0920 HKT on 5 May.
The maximum gust peak speed recorded at Waglan Island was 96 kilometres per hour from 160 degrees at 0704 HKT on 8 May.
The maximum instantaneous rate of rainfall recorded at the Hong Kong Observatory was 198 millimetres per hour at 0701 HKT on 8 May.
^ 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.