EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG, DECEMBER 2004
EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
DECEMBER 2004
| Date DECEMBER |
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 | 1020.2 | 23.3 | 21.5 | 19.9 | 16.3 | 72 | 32 | - |
| 2 | 1019.5 | 24.4 | 22.0 | 20.2 | 17.5 | 76 | 31 | - |
| 3 | 1012.4 | 25.8 | 23.3 | 20.6 | 15.3 | 62 | 72 | - |
| 4 | 1013.6 | 24.6 | 22.1 | 19.1 | 12.0 | 53 | 11 | - |
| 5 | 1019.9 | 21.4 | 19.3 | 17.2 | 9.7 | 54 | 28 | Trace |
| 6 | 1023.8 | 20.9 | 19.5 | 18.1 | 13.6 | 69 | 39 | Trace |
| 7 | 1023.7 | 21.5 | 19.4 | 18.0 | 8.3 | 50 | 72 | - |
| 8 | 1022.3 | 20.5 | 18.3 | 16.1 | 9.0 | 55 | 15 | - |
| 9 | 1021.7 | 20.8 | 18.8 | 16.7 | 11.8 | 65 | 3 | - |
| 10 | 1022.1 | 21.4 | 19.3 | 17.3 | 12.9 | 67 | 5 | - |
| 11 | 1022.5 | 21.3 | 19.4 | 17.9 | 14.3 | 73 | 12 | - |
| 12 | 1022.4 | 23.3 | 20.5 | 18.0 | 10.3 | 55 | 4 | - |
| 13 | 1021.5 | 21.2 | 19.2 | 17.0 | 11.0 | 60 | 21 | - |
| 14 | 1018.7 | 20.9 | 19.2 | 17.3 | 13.9 | 72 | 26 | Trace |
| 15 | 1017.2 | 23.0 | 20.4 | 18.4 | 16.1 | 77 | 14 | - |
| 16 | 1018.6 | 22.1 | 20.3 | 18.8 | 15.5 | 75 | 29 | - |
| 17 | 1018.8 | 21.8 | 20.1 | 18.4 | 15.9 | 77 | 28 | - |
| 18 | 1016.3 | 22.5 | 20.1 | 18.6 | 16.9 | 82 | 41 | - |
| 19 | 1014.6 | 22.6 | 20.3 | 19.2 | 17.2 | 82 | 33 | - |
| 20 | 1016.4 | 22.1 | 20.3 | 18.7 | 16.7 | 81 | 27 | Trace |
| 21 | 1016.7 | 21.0 | 19.9 | 19.2 | 15.5 | 76 | 72 | - |
| 22 | 1015.3 | 21.5 | 20.2 | 19.4 | 17.2 | 83 | 81 | Trace |
| 23 | 1015.5 | 24.1 | 21.4 | 19.8 | 17.9 | 81 | 61 | - |
| 24 | 1019.0 | 20.6 | 19.6 | 18.3 | 15.6 | 78 | 71 | Trace |
| 25 | 1019.0 | 20.2 | 19.1 | 18.1 | 15.4 | 79 | 81 | - |
| 26 | 1017.6 | 20.9 | 19.3 | 18.4 | 15.4 | 78 | 51 | Trace |
| 27 | 1018.9 | 21.4 | 18.8 | 16.9 | 13.8 | 73 | 46 | - |
| 28 | 1020.7 | 17.1 | 13.5 | 9.9 | 8.0 | 70 | 60 | - |
| 29 | 1021.1 | 14.9 | 12.4 | 8.9 | 7.2 | 71 | 39 | - |
| 30 | 1022.0 | 16.8 | 14.2 | 9.3 | 8.3 | 68 | 87 | - |
| 31 | 1027.0 | 11.6 | 9.4 | 8.2 | -1.8 | 46 | 47 | - |
| Mean/Total | 1019.3 | 21.1 | 19.1 | 17.2 | 13.1 | 70 | 40 | Trace |
| Normal | 1020.2 | 20.5 | 17.6 | 15.4 | 11.2 | 68 | 49 | 27.3 |
| Station | Hong Kong Observatory | |||||||
| Date DECEMBER |
Total Bright Sunshine (hours) |
Daily Global Solar Radiation (MJ/m2) |
Total Evaporation (mm) |
Prevailing Wind Direction (degrees) |
Mean Wind Speed (km/h) |
|---|---|---|---|---|---|
| 1 | 9.2 | 14.60 | 4.2 | 080 | 38.4 |
| 2 | 8.0 | 14.46 | 3.7 | 050 | 26.1 |
| 3 | 0.6 | 7.80 | 3.7 | 010 | 25.3 |
| 4 | 8.7 | 13.41 | 5.4 | 010 | 37.1 |
| 5 | 9.3 | 14.37 | 3.6 | 010 | 34.1 |
| 6 | 7.9 | 13.68 | 3.7 | 080 | 31.5 |
| 7 | 7.6 | 11.58 | 4.6 | 020 | 26.1 |
| 8 | 9.2 | 13.97 | 2.8 | 010 | 21.2 |
| 9 | 9.3 | 14.95 | 3.1 | 070 | 25.0 |
| 10 | 9.5 | 14.11 | 3.3 | 080 | 21.5 |
| 11 | 9.4 | 14.60 | 2.6 | 070 | 23.6 |
| 12 | 9.4 | 14.06 | 4.6 | 020 | 20.3 |
| 13 | 9.5 | 14.85 | 3.3 | 090 | 31.0 |
| 14 | 6.5 | 12.02 | 2.1 | 070 | 29.3 |
| 15 | 8.9 | 13.16 | 3.3 | 050 | 15.0 |
| 16 | 9.3 | 14.66 | 3.6 | 080 | 29.6 |
| 17 | 8.9 | 13.94 | 2.4 | 080 | 24.4 |
| 18 | 6.5 | 11.53 | 2.5 | 090 | 17.0 |
| 19 | 7.8 | 12.09 | 2.3 | 080 | 13.3 |
| 20 | 8.6 | 12.36 | 2.8 | 090 | 17.6 |
| 21 | 4.7 | 11.47 | 2.4 | 090 | 37.7 |
| 22 | 5.9 | 12.56 | 3.0 | 080 | 25.9 |
| 23 | 8.7 | 13.66 | 3.0 | 060 | 13.1 |
| 24 | 7.2 | 13.49 | 3.0 | 080 | 33.1 |
| 25 | 2.2 | 8.10 | 2.3 | 070 | 29.7 |
| 26 | 6.9 | 13.59 | 2.8 | 090 | 28.8 |
| 27 | 6.2 | 11.82 | 3.6 | 020 | 19.5 |
| 28 | 0.5 | 3.78 | 1.9 | 010 | 27.0 |
| 29 | 3.3 | 7.78 | 2.3 | 020 | 26.3 |
| 30 | 0.2 | 6.72 | 3.8 | 010 | 33.9 |
| 31 | 6.7 | 12.85 | 3.7 | 010 | 49.8 |
| Mean/Total | 216.6 | 12.32 | 99.4 | 080 | 26.8 |
| Normal | 181.5 | 12.03 | 111.5 | 080 | 25.5 |
| Station | King's Park | Waglan Island^ | |||
The minimum pressure recorded at the Hong Kong Observatory was 1008.0 hectopascals at 1557 HKT on 3 December.
The maximum air temperature recorded at the Hong Kong Observatory was 25.8 degrees C at 1905 HKT on 3 December.
The minimum air temperature recorded at the Hong Kong Observatory was 8.2 degrees C at 0612 HKT on 31 December.
The maximum gust peak speed recorded at Waglan Island was 85 kilometres per hour from 010 degrees at 0032 HKT on 31 December.
^ 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.