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World Meteorological Organization-Official City Weather Forecasts |
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the Hong Kong International Airport since 1997 |
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1997 | 80 | 24 | 52 | 140 | 44 | 20 | 15 | 99 | 66 | 163 | 56 | 201 | 960 |
| 1998 | 156 | 84 | 179 | 52 | 32 | 24 | 1 | 10 | 113 | 34 | 108 | 158 | 951 |
| 1999 | 269 | 81 | 127 | 63 | 32 | 23 | 26 | 54 | 86 | 96 | 163 | 122 | 1142 |
| 2000 | 144 | 130 | 143 | 37 | 23 | 6 | 33 | 10 | 32 | 19 | 94 | 228 | 899 |
| 2001 | 95 | 118 | 83 | 67 | 68 | 18 | 10 | 81 | 114 | 85 | 96 | 130 | 965 |
| 2002 | 170 | 96 | 29 | 12 | 41 | 4 | 30 | 63 | 100 | 43 | 56 | 171 | 815 |
| 2003 | 310 | 139 | 76 | 69 | 71 | 31 | 0 | 22 | 22 | 125 | 161 | 291 | 1317 |
| 2004 | 197 | 163 | 115 | 103 | 79 | 92 | 25 | 143 | 158 | 265 | 291 | 440 | 2071 |
| 2005 | 476 | 131 | 153 | 198 | 14 | 9 | 21 | 42 | 195 | 205 | 219 | 276 | 1939 |
| 2006 | 305 | 273 | 180 | 71 | 35 | 9 | 43 | 92 | 81 | 482 | 293 | 287 | 2151 |
| 2007 | 427 | 194 | 102 | 161 | 158 | 16 | 0 | 81 | 238 | 299 | 171 | 420 | 2267 |
| 2008 | 226 | 315 | 265 | 172 | 97 | 0 | 29 | 6 | 186 | 230 |
| Mean (1997 - 2007) | 239.0 | 130.3 | 112.6 | 88.5 | 54.3 | 22.9 | 18.5 | 63.4 | 109.5 | 165.1 | 155.3 | 247.6 | 1407.0 |
| Mean (1997 - 2008) | 237.9 | 145.7 | 125.3 | 95.4 | 57.8 | 21.0 | 19.4 | 58.6 | 115.9 | 170.5 | |||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Total |
|---|
| Absolute Maximum in red colour |
| Column's Maximum in yellow background colour |
-The visibility readings at the Hong Kong International Airport are based on hourly observations by professional meteorological observers in 2004 and before, and average readings over the 10-minute period before the clock hour of the visibility meter near the middle of the south runway from 2005 onwards. The change of the data source in 2005 is an improvement of the visibility assessment using instrumented observations following the international trend.
-Before 10 October 2007, the number of hours of reduced visibility at the Hong Kong International Airport in 2005 and thereafter displayed in this web page was based on hourly visibility observations by professional meteorological observers. Since 10 October 2007, the data have been revised using the average visibility readings over the 10-minute period before the clock hour, as recorded by the visibility meter near the middle of the south runway.
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