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Climatological Information Services > Climatological Normals and Extremes > Monthly/Year Extremes
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Extreme Values and Dates of Occurrence of Extremes of Meteorological Elements between 1884-1939 and 1947-2021 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 | 36.1 | 23/05/2021 | 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 | 1019.0 | 24/09/2019 | 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 - 2021 | |||||||
| 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 - 2021 |
1953 - 2021 | April 1884 - 1939 ; 1947 - 2021 |
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| Month | Rainfall | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Hourly Maximum | Daily Maximum | Monthly/Annual Maximum |
Monthly/Annual Minimum |
Maximum Instantaneous Jardi Rate at King's Park |
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| 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 | 329.7 | 08/10/2021 | 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 2019 |
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 - 2021 | |||||||||
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 hours on 17 August 1971 at Tate's Cairn