EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG, DECEMBER 2001
EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
DECEMBER 2001
| 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 | 1015.9 | 22.9 | 21.7 | 20.9 | 18.8 | 84 | 70 | Trace |
| 2 | 1016.5 | 22.8 | 21.8 | 21.2 | 18.1 | 80 | 84 | - |
| 3 | 1016.6 | 22.7 | 21.6 | 20.7 | 18.3 | 82 | 72 | - |
| 4 | 1014.8 | 26.2 | 23.2 | 21.2 | 18.0 | 73 | 36 | - |
| 5 | 1015.9 | 23.0 | 22.1 | 21.3 | 18.3 | 79 | 75 | - |
| 6 | 1017.9 | 22.4 | 21.4 | 18.8 | 16.7 | 75 | 93 | - |
| 7 | 1018.9 | 20.7 | 19.5 | 17.5 | 14.6 | 74 | 88 | - |
| 8 | 1018.2 | 21.4 | 20.1 | 19.2 | 16.9 | 82 | 94 | 7.1 |
| 9 | 1018.5 | 22.2 | 20.9 | 19.6 | 18.7 | 87 | 98 | 9.6 |
| 10 | 1018.7 | 23.6 | 21.3 | 19.5 | 18.2 | 83 | 92 | 7.8 |
| 11 | 1018.8 | 20.9 | 20.2 | 19.4 | 17.2 | 83 | 88 | - |
| 12 | 1019.3 | 22.5 | 21.0 | 20.0 | 18.1 | 84 | 84 | - |
| 13 | 1022.9 | 21.3 | 18.6 | 14.9 | 13.7 | 73 | 84 | - |
| 14 | 1027.3 | 17.4 | 15.1 | 13.0 | 9.3 | 68 | 90 | - |
| 15 | 1025.2 | 18.6 | 17.1 | 15.5 | 11.9 | 72 | 83 | - |
| 16 | 1022.0 | 20.1 | 18.9 | 17.9 | 15.0 | 78 | 94 | Trace |
| 17 | 1020.8 | 21.5 | 20.5 | 18.8 | 17.6 | 83 | 96 | 1.7 |
| 18 | 1022.8 | 19.2 | 17.3 | 15.2 | 15.9 | 92 | 99 | 18.4 |
| 19 | 1024.7 | 19.4 | 17.4 | 15.2 | 13.9 | 80 | 73 | - |
| 20 | 1024.8 | 20.2 | 18.7 | 17.2 | 14.7 | 78 | 84 | Trace |
| 21 | 1026.7 | 18.2 | 14.5 | 11.0 | 7.3 | 62 | 51 | - |
| 22 | 1027.7 | 14.3 | 11.7 | 8.9 | 0.2 | 45 | 14 | - |
| 23 | 1025.8 | 16.7 | 13.9 | 11.3 | 1.9 | 45 | 31 | - |
| 24 | 1025.3 | 17.3 | 15.0 | 12.6 | 6.0 | 56 | 38 | - |
| 25 | 1027.6 | 17.9 | 15.8 | 13.5 | 9.3 | 66 | 17 | - |
| 26 | 1027.8 | 17.6 | 15.8 | 14.0 | 10.1 | 70 | 46 | - |
| 27 | 1027.4 | 17.6 | 16.2 | 14.7 | 10.6 | 70 | 39 | - |
| 28 | 1027.2 | 18.5 | 15.7 | 13.4 | 6.3 | 54 | 6 | - |
| 29 | 1024.7 | 18.2 | 15.6 | 13.1 | 5.7 | 53 | 3 | - |
| 30 | 1022.0 | 18.0 | 16.0 | 13.9 | 8.9 | 63 | 3 | - |
| 31 | 1019.8 | 21.1 | 17.4 | 15.1 | 10.9 | 67 | 7 | - |
| Mean/Total | 1022.0 | 20.1 | 18.3 | 16.4 | 12.9 | 72 | 62 | 44.6 |
| 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 | 3.8 | 9.37 | 2.4 | 060 | 25.4 |
| 2 | 5.1 | 10.70 | 3.1 | 070 | 29.3 |
| 3 | 3.1 | 8.59 | 2.0 | 060 | 26.0 |
| 4 | 9.7 | 14.75 | 3.3 | 080 | 9.9 |
| 5 | 6.6 | 12.57 | 3.0 | 070 | 30.2 |
| 6 | - | 4.04 | 2.5 | 020 | 23.3 |
| 7 | 4.6 | 10.81 | 2.6 | 070 | 27.3 |
| 8 | - | 1.96 | 2.7 | 050 | 35.3 |
| 9 | - | 2.98 | 1.7 | 040 | 30.8 |
| 10 | 0.7 | 6.97 | 2.0 | 020 | 25.2 |
| 11 | - | 3.59 | 1.4 | 070 | 38.4 |
| 12 | 0.7 | 10.23 | 2.2 | 060 | 23.3 |
| 13 | - | 5.82 | 3.3 | 010 | 30.3 |
| 14 | 0.2 | 8.02 | 2.3 | 010 | 27.7 |
| 15 | 6.0 | 12.63 | 3.0 | 070 | 43.8 |
| 16 | - | 4.05 | 1.5 | 070 | 36.7 |
| 17 | - | 3.51 | 1.9 | 030 | 18.9 |
| 18 | - | 1.25 | 2.8 | 010 | 23.8 |
| 19 | 3.6 | 9.49 | 1.8 | 010 | 22.4 |
| 20 | 3.8 | 9.90 | 3.0 | 020 | 24.1 |
| 21 | 5.5 | 11.75 | 4.4 | 010 | 44.8 |
| 22 | 9.7 | 14.99 | 3.2 | 010 | 31.8 |
| 23 | 9.8 | 16.21 | 3.3 | 010 | 16.7 |
| 24 | 9.2 | 15.15 | 2.3 | 060 | 21.3 |
| 25 | 9.6 | 15.02 | 2.9 | 060 | 29.4 |
| 26 | 8.0 | 13.19 | 2.5 | 070 | 32.0 |
| 27 | 7.5 | 12.58 | 2.4 | 060 | 25.0 |
| 28 | 9.0 | 13.01 | 3.0 | 010 | 19.5 |
| 29 | 8.7 | 13.08 | 2.6 | 010 | 15.0 |
| 30 | 9.0 | 13.57 | 2.7 | 050 | 16.8 |
| 31 | 9.1 | 13.36 | 2.2 | 050 | 13.6 |
| Mean/Total | 143.0 | 9.78 | 80.0 | 060 | 26.4 |
| 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 1012.1 hectopascals at 1557 HKT on 4 December.
The maximum air temperature recorded at the Hong Kong Observatory was 26.2 degrees C at 1308 HKT on 4 December.
The minimum air temperature recorded at the Hong Kong Observatory was 8.9 degrees C at 0701 HKT on 22 December.
The maximum gust peak speed recorded at Waglan Island was 70 kilometres per hour from 010 degrees at 2135 HKT on 21 December.
The maximum instantaneous rate of rainfall recorded at King's Park was 13 millimetres per hour at 0347 HKT on 10 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.