Extreme Values and Dates of Occurrence of Extremes of Meteorological Elementsbetween 1884-1939 and 1947-2017 for Hong Kong| Month | Barometric Pressure | Air Temperature |
|---|
| Absolute Maximum | Absolute Minimum | Absolute Maximum | Absolute Minimum |
|---|
| hPa | Date | hPa | Date | deg. C | Date | deg. C | Date |
|---|
| January | 1037.7 | 24/01/2016 | 1003.1 | 29/01/1980 | 26.9 | 29/01/1959 | 0.0 | 18/01/1893 | | February | 1032.7 | 01/02/1962 | 998.3 | 19/02/1898 | 28.3 | 25/02/2009 | 2.4 | 11/02/1957 | | March | 1033.9 | 05/03/2005 | 1001.9 | 24/03/1918 | 30.1 | 31/03/1973 | 4.8 | 01/03/1986 | | April | 1028.4 | 09/04/1925
02/04/1991 | 999.9 | 02/04/1924 | 33.4 | 27/04/1956 | 9.9 | 05/04/1969 | | May | 1020.2 | 01/05/1934 | 981.1 | 19/05/1961 | 35.5 | 31/05/1963 | 15.4 | 01/05/1917 | | June | 1014.7 | 12/06/2004 | 973.8 | 09/06/1960 | 35.6 | 01/06/1963 | 19.2 | 02/06/1926 | | July | 1014.8 | 30/07/1934 | 975.8 | 29/07/1896 | 35.7 | 25/07/1968 | 21.7 | 30/07/1989 | | August | 1016.3 | 13/08/1969 | 961.6 | 02/08/1979 | 36.6 | 22/08/2017 | 21.6 | 03/08/1955 | | September | 1018.2 | 26/09/1902
26/09/1987 | 953.2 | 01/09/1962 | 35.2 | 05/09/1963 | 18.4 | 26/09/1935 | | October | 1024.5 | 23/10/1888 | 977.3 | 13/10/1964 | 34.3 | 12/10/1890 | 13.5 | 30/10/1978 | | November | 1033.2 | 26/11/1922 | 974.9 | 10/11/1900 | 31.8 | 19/11/1959 | 6.5 | 26/11/1922 | | December | 1033.5 | 31/12/1913 | 1004.6 | 02/12/1974 | 28.7 | 01/12/1953 | 4.3 | 14/12/1975 | | Year | 1037.7 | 24/01/2016 | 953.2 | 01/09/1962 | 36.6 | 22/08/2017 | 0.0 | 18/01/1893 | Period of
Record | 1884 - 1939 ; 1947 - 2017 |
| Month | Wind | Relative Humidity # |
|---|
Maximum Gust Peak Speed
at the Hong Kong Observatory | Maximum Gust Peak Speed
at Waglan Island | Absolute Minimum |
|---|
| km/h | Date | km/h | Date | % | Date |
|---|
| January | 96 | 16/01/1961 | 103 | 15/01/1955 | 10 | 16/01/1959 | | February | 103 | 11/02/1960
27/02/1980 | 110 | 19/02/1955 | 13 | 21/02/1955 | | March | 108 | 21/03/1934 | 103 | 31/03/1960 | 16 | 04/03/1977 | | April | 106 | 11/04/1965 | 135 | 11/04/1990 | 22 | 17/04/1922 | | May | 166 | 19/05/1961 | 140 | 28/05/1964 | 23 | 14/05/1955
04/05/1961 | | June | 191 | 09/06/1960 | 194 | 09/06/1960 | 29 | 01/06/1887 | | July | 151 | 13/07/1966 | 158 | 16/07/1973 | 43 | 25/07/1968 | | August | 224 | 17/08/1971 | 209 | 21/08/1968 | 41 | 28/08/1900 | | September | 259 | 01/09/1962 | 234 | 16/09/1999 | 26 | 17/09/1966 | | October | 175 | 13/10/1964 | 184 | 13/10/1964 | 21 | 25/10/1968
28/10/1973
27/10/1991
28/10/1991
17/10/1998 | | November | 155 | 06/11/1954 | 175 | 06/11/1954 | 17 | 16/11/1900
17/11/1971
24/11/1995 | | December | 104 | 09/12/1950 | 108 | 28/12/1991 | 14 | 14/12/1898
31/12/1973 | | Year | 259 | 01/09/1962 | 234 | 16/09/1999 | 10 | 16/01/1959 | Period of
Record | 1911 - 1939 ;
April 1947 - 2017 | 1953 - 2017 | April 1884 - 1939 ;
1947 - 2017 |
| Month | Rainfall |
|---|
| Hourly Maximum | Daily Maximum | Monthly/Annual
Maximum | Monthly/Annual
Minimum | Maximum Instantaneous
Jardi Rate at King's Park |
|---|
| mm | Date | mm | Date | mm | Year | mm | Year | mm/h | Date |
|---|
| January | 37.0 | 05/01/2016 | 99.8 | 26/01/1887 | 266.9 | 2016 | 0.0 | 1914 | 168 | 23/01/1964 | | February | 31.9 | 23/02/1990 | 94.1 | 07/02/2010 | 241.0 | 1983 | 0.0 | 1911 | 244 | 23/02/1990 | | March | 56.0 | 30/03/2014 | 130.0 | 23/03/2002 | 428.0 | 1983 | 1.1 | 1971 | 320* | 24/03/2009 | | April | 92.4 | 30/04/1975 | 237.4 | 19/04/2008 | 547.7 | 2000 | 6.0 | 1994 | 330 | 09/04/2001 | | May | 109.9 | 08/05/1992 | 520.6 | 30/05/1889 | 1241.1 | 1889 | 6.0 | 1963 | >=347 | 11/05/1972 | | June | 145.5 | 07/06/2008 | 411.3 | 09/06/1998 | 1346.1 | 2008 | 59.7 | 1901 | 320* | 07/06/2008 | | July | 115.1 | 16/07/2006 | 534.1 | 19/07/1926 | 1147.2 | 1994 | 76.9 | 2007 | 329 | 31/07/1995 | | August | 82.1 | 02/08/1979 | 334.2 | 16/08/1982 | 1090.1 | 1995 | 44.2 | 1933 | 320* | 03/08/1955 | | September | 84.0 | 22/09/1948 | 325.5 | 27/09/1965 | 844.2 | 1952 | 16.3 | 1902 | 314 | 03/09/1973
29/09/1981 | | October | 78.7 | 19/10/2016 | 292.2 | 31/10/1923 | 718.4 | 1974 | 0.0 | 1979 | 301 | 13/10/1964 | | November | 46.6 | 03/11/2008 | 149.2 | 17/11/1897 | 224.2 | 1914 | Trace | 1924
1971
1983 | 144 | 24/11/2013 | | December | 51.7 | 09/12/1931 | 177.3 | 02/12/1974 | 206.9 | 1974 | 0.0 | 1909 | 147 | 29/12/1992 | | Year | 145.5 | 07/06/2008 | 534.1 | 19/07/1926 | 3343.0 | 1997 | 901.1 | 1963 | >=347 | 11/05/1972 | Period of
Record | 1884 - 1939 ; 1947 - 2017 |
Note : All measurements were made at the Hong Kong Observatory except where specified. * Upper limit of recorder # Based on hourly manual observations The maximum instantaneous Jardi rate of rainfall in Hong Kong was 513 mm per hour recorded at 0730 hourson 17 August 1971 at Tate's Cairn
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