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Daily Extract of Hong Kong Observatory for Monther's day
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Climatological Information for Monther's day
(Period: 1947 - 2017)

[2nd Sunday of May]

  1. Table of Daily Maximum Air Temperature recorded at Hong Kong Observatoy ( Annual Data  /  30-year Normals )
  2. Table of Daily Mean Temperature recorded at Hong Kong Observatoy ( Annual Data  /  30-year Normals )
  3. Table of Daily Minimum Air Temperature recorded at Hong Kong Observatoy ( Annual Data  /  30-year Normals )
  4. Table of Daily Mean Relative Humidity recorded at Hong Kong Observatoy ( Annual Data  /  30-year Normals )
  5. Table of Daily Total Rainfall recorded at Hong Kong Observatoy ( Annual Data  /  30-year Normals )
  6. Table of Daily Mean Cloud Amount recorded at Hong Kong Observatoy ( Annual Data  /  30-year Normals )

Date
(yyyy-mm-dd)
Daily Maximum Air Temperature recorded at
Hong Kong Observatory
(°C)
D-3 D-2 D-1 Day(D) D+1 D+2 D+3
1947-05-11 29.3 25.6 25.4 26.1 25.7 25.2 25.3
1948-05-09 27.1 31.1 27.8 25.1 29.3 30.2 27.1
1949-05-08 28.2 31.1 29.3 27.7 25.6 27.4 28.8
1950-05-14 26.2 25.8 25.3 27.1 27.4 28.1 29.8
1951-05-13 27.1 26.1 24.1 24.8 29.4 30.3 31.0
1952-05-11 26.1 25.6 28.0 31.3 31.7 27.6 26.7
1953-05-10 27.4 29.1 27.2 27.1 29.7 30.7 31.1
1954-05-09 29.9 31.1 31.3 32.4 26.3 24.4 29.3
1955-05-08 27.2 29.0 30.2 27.5 24.0 26.7 24.0
1956-05-13 32.1 29.6 23.8 25.1 25.1 23.8 25.6
1957-05-12 26.9 30.3 30.4 29.2 30.2 28.7 24.2
1958-05-11 31.4 31.3 32.0 33.3 29.7 24.9 26.1
1959-05-10 29.5 27.7 27.4 27.6 28.1 29.6 28.3
1960-05-08 30.1 27.8 27.2 25.6 27.9 29.2 24.4
1961-05-14 30.6 28.0 23.0 25.5 29.6 30.6 26.6
1962-05-13 26.8 27.9 31.0 29.4 32.2 32.6 31.9
1963-05-12 32.6 32.6 33.6 31.9 33.8 33.9 31.2
1964-05-10 25.6 26.5 28.5 31.4 24.6 22.1 25.6
1965-05-09 27.5 30.2 30.7 30.0 30.5 26.5 22.9
1966-05-08 27.1 27.0 28.3 28.5 28.3 31.0 31.1
1967-05-14 29.5 28.8 32.5 32.2 26.0 29.0 29.3
1968-05-12 27.0 28.6 31.7 31.8 31.5 30.0 28.8
1969-05-11 28.3 30.0 30.7 31.2 31.5 30.8 26.6
1970-05-10 32.6 32.6 31.9 28.5 28.7 26.0 27.6
1971-05-09 28.2 26.3 28.7 28.2 26.6 25.9 25.8
1972-05-14 28.5 28.5 29.5 29.6 29.9 27.3 23.6
1973-05-13 25.3 23.2 25.1 24.9 29.6 31.0 31.1
1974-05-12 31.1 25.3 27.3 28.5 30.5 31.5 31.6
1975-05-11 27.5 30.3 30.6 27.6 27.8 30.8 31.3
1976-05-09 26.6 25.0 23.4 23.2 24.8 28.9 26.1
1977-05-08 31.5 31.4 33.0 31.7 31.7 32.4 32.4
1978-05-14 24.2 27.3 28.3 27.2 27.7 25.2 25.9
1979-05-13 31.2 27.1 24.9 27.5 27.2 24.5 22.8
1980-05-11 25.8 25.0 23.0 24.1 29.2 29.9 30.2
1981-05-10 29.2 30.8 30.0 25.8 26.8 28.0 24.7
1982-05-09 27.1 25.6 27.4 28.9 28.6 29.2 28.0
1983-05-08 29.0 26.9 27.8 27.1 28.4 29.7 30.2
1984-05-13 28.2 28.2 27.9 30.0 28.7 29.1 28.1
1985-05-12 29.7 31.0 31.6 31.9 31.1 30.8 31.5
1986-05-11 28.4 30.9 28.9 26.1 28.0 31.2 30.1
1987-05-10 27.1 24.0 24.8 27.1 29.2 30.0 30.5
1988-05-08 29.2 29.5 31.3 31.4 31.7 31.3 31.2
1989-05-14 31.0 30.7 30.1 25.6 23.5 26.2 28.8
1990-05-13 24.9 24.0 28.9 25.9 29.6 25.7 26.4
1991-05-12 24.2 24.7 27.8 29.9 28.8 28.4 30.9
1992-05-10 27.8 24.6 25.9 23.5 22.9 27.0 29.7
1993-05-09 29.0 30.3 30.1 28.9 27.2 26.7 28.9
1994-05-08 28.2 27.2 28.2 30.2 28.3 30.5 31.2
1995-05-14 24.7 24.8 27.9 29.4 28.1 22.8 25.4
1996-05-12 25.1 24.9 24.2 26.6 27.4 27.4 27.5
1997-05-11 27.8 27.1 24.4 29.8 30.2 30.7 31.5
1998-05-10 31.0 31.3 30.2 30.1 32.2 31.1 31.6
1999-05-09 21.6 24.3 22.6 20.5 27.5 28.3 27.0
2000-05-14 26.9 27.4 29.6 28.1 30.3 31.6 29.3
2001-05-13 26.9 26.6 29.6 29.2 30.0 28.5 27.8
2002-05-12 28.0 29.5 30.2 28.4 28.8 29.9 28.4
2003-05-11 30.9 27.5 27.4 28.3 28.1 29.9 32.1
2004-05-09 26.1 25.8 25.3 30.5 30.7 28.9 30.4
2005-05-08 29.9 28.2 27.4 26.2 27.4 26.0 24.7
2006-05-14 30.5 29.6 30.9 27.1 27.2 26.3 24.3
2007-05-13 29.4 29.0 30.5 30.2 30.4 31.2 30.5
2008-05-11 30.2 31.0 27.1 24.9 28.2 29.1 29.2
2009-05-10 29.4 28.7 29.4 28.6 31.0 31.3 31.3
2010-05-09 28.7 28.3 27.2 30.0 26.4 26.4 26.6
2011-05-08 24.8 30.2 31.3 29.5 30.5 32.9 33.0
2012-05-13 32.5 27.9 28.7 29.6 32.2 30.3 29.2
2013-05-12 29.2 28.6 28.9 26.5 29.9 28.8 31.0
2014-05-11 23.2 22.2 25.6 26.6 29.4 29.1 30.9
2015-05-10 30.6 30.2 30.5 28.8 29.4 29.5 28.4
2016-05-08 30.9 30.5 31.0 31.2 30.6 28.4 28.8
2017-05-14 31.6 30.7 26.6 29.5 27.0 26.6 29.9
Maximum 32.6 32.6 33.6 33.3 33.8 33.9 33.0
Minimum 21.6 22.2 22.6 20.5 22.9 22.1 22.8
30-year Normals
(1961-1990) 28.4 28.1 28.8 28.4 28.9 29.0 28.4
(1971-2000) 27.7 27.3 27.8 27.6 28.5 28.8 28.8
(1981-2010) 28.0 27.7 28.2 28.0 28.6 28.8 28.9
### means data not available
Column's Maximum in light red background colour
Column's Minimum in light blue background colour



Date
(yyyy-mm-dd)
Daily Mean Temperature recorded at
Hong Kong Observatory
(°C)
D-3 D-2 D-1 Day(D) D+1 D+2 D+3
1947-05-11 25.8 23.2 23.2 23.6 23.9 23.2 23.4
1948-05-09 24.2 27.2 25.0 23.4 26.4 27.0 25.2
1949-05-08 24.9 26.8 26.2 25.0 23.9 24.8 26.0
1950-05-14 23.4 23.3 23.4 24.3 24.3 25.3 25.9
1951-05-13 24.3 23.9 23.2 24.0 26.2 27.7 28.1
1952-05-11 24.4 24.5 25.9 27.5 26.8 25.0 24.6
1953-05-10 23.6 24.5 24.0 24.4 26.8 27.8 27.3
1954-05-09 25.5 27.6 27.8 28.3 24.0 23.4 25.3
1955-05-08 24.0 25.5 26.9 24.4 23.1 23.9 23.2
1956-05-13 27.2 25.0 22.4 22.9 23.0 22.8 23.0
1957-05-12 25.1 27.3 27.8 26.8 27.5 25.8 22.1
1958-05-11 28.5 28.7 28.7 29.0 25.6 22.7 24.2
1959-05-10 26.4 25.4 25.5 25.2 25.8 26.4 25.9
1960-05-08 28.0 24.4 25.1 24.3 25.0 24.8 23.1
1961-05-14 27.9 24.6 22.1 23.3 25.3 26.6 24.8
1962-05-13 24.9 25.6 27.0 26.7 28.1 28.1 28.0
1963-05-12 27.9 28.2 28.7 28.3 29.0 28.7 27.5
1964-05-10 23.7 24.5 25.6 27.3 22.1 20.6 23.3
1965-05-09 24.0 25.6 27.1 27.7 27.7 24.0 21.9
1966-05-08 23.9 23.7 25.2 25.6 26.1 27.6 28.2
1967-05-14 26.6 26.6 27.3 27.3 24.8 25.8 26.3
1968-05-12 24.4 25.7 27.1 27.9 27.9 25.8 25.9
1969-05-11 24.5 26.5 27.3 28.3 28.6 27.3 25.2
1970-05-10 27.5 28.1 28.8 26.7 24.7 23.4 24.9
1971-05-09 23.5 23.4 24.4 24.6 24.6 24.4 23.6
1972-05-14 24.0 24.9 25.3 25.9 25.9 24.5 22.5
1973-05-13 23.4 22.3 23.3 23.8 27.1 28.4 28.7
1974-05-12 27.6 24.0 24.2 24.7 26.2 27.1 27.5
1975-05-11 25.2 27.8 28.1 27.0 26.2 27.7 26.9
1976-05-09 22.5 22.7 22.1 22.0 23.2 25.1 25.0
1977-05-08 27.7 27.9 28.2 28.0 28.0 28.4 28.5
1978-05-14 22.6 24.2 24.7 24.3 24.9 24.1 24.4
1979-05-13 27.2 25.7 24.1 25.2 25.1 22.6 21.6
1980-05-11 22.7 22.3 21.0 21.7 24.7 26.5 26.9
1981-05-10 25.6 26.8 26.6 24.7 24.6 24.1 22.9
1982-05-09 24.4 22.9 24.2 25.9 27.1 27.5 27.1
1983-05-08 25.8 25.3 25.5 25.4 26.6 27.8 28.5
1984-05-13 25.1 25.6 26.0 27.6 27.1 27.7 27.0
1985-05-12 26.4 27.1 27.9 28.2 27.9 27.6 28.1
1986-05-11 25.8 27.8 26.7 24.6 25.5 28.4 27.2
1987-05-10 24.1 22.7 22.6 23.9 25.8 26.9 27.5
1988-05-08 27.4 27.9 28.8 29.0 29.2 29.0 27.7
1989-05-14 28.7 28.5 27.2 22.9 22.3 23.9 26.4
1990-05-13 23.6 23.5 25.7 24.7 26.3 24.4 24.2
1991-05-12 23.0 23.1 24.5 26.5 25.7 25.6 26.8
1992-05-10 25.3 23.4 24.0 21.5 21.9 23.6 25.3
1993-05-09 26.3 27.4 27.5 25.5 24.8 24.7 26.1
1994-05-08 24.0 24.3 24.7 26.2 26.2 27.6 27.9
1995-05-14 24.0 23.9 24.4 26.3 25.3 22.3 23.2
1996-05-12 22.8 22.6 22.8 23.4 24.4 24.3 24.5
1997-05-11 25.4 23.9 23.0 26.6 27.9 28.2 28.4
1998-05-10 27.5 28.1 27.7 27.6 28.6 28.5 28.8
1999-05-09 19.7 21.5 20.4 19.7 23.2 24.7 24.7
2000-05-14 24.2 25.2 26.2 26.5 27.4 28.0 26.9
2001-05-13 24.7 24.6 25.7 26.2 27.1 26.5 26.1
2002-05-12 26.4 26.8 27.6 26.6 26.5 27.6 26.4
2003-05-11 28.7 25.5 25.4 25.9 26.3 27.2 28.0
2004-05-09 24.1 24.2 24.4 26.4 27.3 27.2 28.0
2005-05-08 28.2 25.6 25.4 24.9 24.6 24.2 24.0
2006-05-14 27.5 26.5 26.6 23.7 24.7 24.5 22.8
2007-05-13 26.1 25.6 26.5 26.3 26.2 26.7 27.4
2008-05-11 27.0 27.8 24.3 22.4 24.1 24.6 24.7
2009-05-10 24.2 24.3 25.2 25.4 26.5 27.0 27.1
2010-05-09 27.3 25.3 25.6 27.0 23.9 23.9 24.0
2011-05-08 23.6 26.5 27.6 26.9 27.3 28.5 29.3
2012-05-13 29.1 26.0 26.4 27.9 28.8 28.0 26.6
2013-05-12 25.2 25.0 25.6 24.7 26.0 26.2 28.4
2014-05-11 22.2 21.7 23.3 24.3 25.8 27.3 28.7
2015-05-10 28.0 28.2 27.3 26.3 25.6 25.7 26.4
2016-05-08 28.1 28.4 28.7 28.7 28.7 26.6 25.5
2017-05-14 27.5 27.5 25.8 26.7 25.5 25.0 26.0
Maximum 29.1 28.7 28.8 29.0 29.2 29.0 29.3
Minimum 19.7 21.5 20.4 19.7 21.9 20.6 21.6
30-year Normals
(1961-1990) 25.3 25.4 25.8 25.8 26.1 26.1 25.9
(1971-2000) 24.9 24.9 25.1 25.1 25.8 26.1 26.2
(1981-2010) 25.4 25.3 25.4 25.4 25.8 26.1 26.3
### means data not available
Column's Maximum in light red background colour
Column's Minimum in light blue background colour



Date
(yyyy-mm-dd)
Daily Minimum Air Temperature recorded at
Hong Kong Observatory
(°C)
D-3 D-2 D-1 Day(D) D+1 D+2 D+3
1947-05-11 22.9 21.6 21.9 22.3 22.6 21.6 22.6
1948-05-09 22.6 24.2 23.2 22.2 22.9 24.7 23.3
1949-05-08 22.7 22.8 23.7 23.6 21.3 23.0 23.3
1950-05-14 21.3 22.0 22.4 22.3 22.2 23.4 24.2
1951-05-13 22.6 22.0 21.8 23.1 23.4 26.2 26.3
1952-05-11 22.8 23.7 24.0 24.3 24.3 23.9 23.3
1953-05-10 21.2 20.4 20.7 22.2 24.3 26.1 22.7
1954-05-09 22.3 24.9 24.3 25.7 22.8 22.1 22.9
1955-05-08 22.4 23.7 24.7 21.4 22.1 21.2 21.4
1956-05-13 24.4 22.2 21.4 21.5 21.4 21.6 21.8
1957-05-12 23.4 25.2 26.1 23.4 23.9 23.2 21.2
1958-05-11 27.1 27.4 27.1 27.7 22.1 21.1 22.7
1959-05-10 25.1 24.2 24.2 24.3 24.1 24.2 24.8
1960-05-08 26.7 22.4 24.1 23.3 23.2 21.7 22.5
1961-05-14 26.4 22.3 21.4 21.5 22.8 24.1 23.5
1962-05-13 23.4 23.8 24.0 25.0 25.6 25.8 25.3
1963-05-12 25.2 26.1 25.8 26.0 26.4 26.1 25.2
1964-05-10 22.5 23.3 24.1 24.1 20.5 18.8 21.4
1965-05-09 21.2 23.4 24.1 26.3 25.6 21.4 20.9
1966-05-08 21.6 21.6 21.9 23.1 24.1 25.5 26.0
1967-05-14 25.0 24.9 25.0 24.8 23.8 23.6 23.9
1968-05-12 23.3 23.4 24.4 25.2 25.6 23.9 24.8
1969-05-11 21.9 23.8 24.9 26.1 26.9 23.8 23.6
1970-05-10 24.7 25.9 27.1 24.7 21.8 21.2 22.6
1971-05-09 19.6 21.2 21.2 22.1 23.4 22.8 22.0
1972-05-14 20.2 22.6 23.1 23.3 23.8 23.2 21.3
1973-05-13 22.2 21.6 22.1 22.6 24.0 26.7 27.4
1974-05-12 25.0 23.0 22.5 22.8 23.9 24.5 25.1
1975-05-11 23.4 25.5 26.6 26.2 24.4 25.5 25.0
1976-05-09 19.1 21.1 20.7 21.1 22.0 22.8 23.9
1977-05-08 25.1 25.1 25.0 25.6 25.8 26.2 26.4
1978-05-14 21.2 21.6 23.0 23.1 23.3 23.4 23.3
1979-05-13 24.3 24.1 23.1 23.8 23.6 20.8 19.7
1980-05-11 21.5 19.9 19.7 20.1 22.0 24.5 24.8
1981-05-10 22.6 24.2 25.6 23.7 23.4 21.9 21.6
1982-05-09 22.2 21.7 21.3 23.4 26.2 26.1 26.2
1983-05-08 23.6 24.0 23.0 24.3 24.0 25.9 27.3
1984-05-13 23.6 24.0 24.5 26.0 24.7 26.5 25.7
1985-05-12 24.4 24.7 25.1 26.2 26.0 25.8 26.0
1986-05-11 24.1 25.6 25.1 23.6 23.9 26.1 24.7
1987-05-10 22.9 21.7 21.2 22.7 23.3 24.3 25.2
1988-05-08 25.3 26.9 27.4 27.3 27.8 27.8 25.0
1989-05-14 27.3 27.2 25.1 20.9 21.1 22.3 24.1
1990-05-13 22.8 23.1 23.4 23.5 23.7 23.3 23.2
1991-05-12 22.2 21.7 22.7 23.8 24.5 23.7 24.0
1992-05-10 22.4 22.4 23.2 20.2 21.0 21.6 22.3
1993-05-09 23.2 25.3 25.7 22.1 22.5 23.3 24.3
1994-05-08 21.1 23.1 23.2 23.4 24.5 25.8 26.6
1995-05-14 23.4 23.3 22.4 23.7 22.2 21.5 21.5
1996-05-12 21.4 20.5 21.8 21.2 22.4 22.3 22.7
1997-05-11 23.1 22.2 21.9 23.6 26.6 26.7 26.6
1998-05-10 25.4 26.3 26.8 25.8 26.9 26.7 27.1
1999-05-09 17.0 18.6 18.6 18.6 20.0 21.6 23.7
2000-05-14 22.8 23.9 24.2 25.2 25.7 25.7 25.7
2001-05-13 23.5 22.9 23.4 23.9 25.4 25.3 25.0
2002-05-12 25.2 24.2 24.0 25.5 24.7 24.1 23.9
2003-05-11 27.4 24.4 24.3 24.5 25.4 25.8 26.1
2004-05-09 22.5 23.3 23.0 23.5 24.7 25.9 26.2
2005-05-08 27.0 22.0 24.4 24.2 22.2 23.2 23.2
2006-05-14 25.5 24.6 22.7 20.5 22.6 22.7 21.1
2007-05-13 24.5 23.6 24.3 24.6 23.7 24.2 25.1
2008-05-11 24.5 25.9 20.9 20.7 22.3 21.6 22.2
2009-05-10 20.9 21.7 23.0 24.0 24.4 24.6 24.8
2010-05-09 26.0 23.0 24.5 24.6 21.9 22.6 23.2
2011-05-08 22.5 23.8 25.4 25.5 25.3 26.2 27.5
2012-05-13 26.9 24.8 24.5 26.0 25.7 26.4 25.7
2013-05-12 22.8 23.4 23.0 24.1 23.9 25.0 25.9
2014-05-11 21.2 20.9 21.5 22.3 23.4 24.8 27.5
2015-05-10 26.5 27.1 24.2 24.3 23.3 22.6 25.2
2016-05-08 26.2 27.2 27.1 27.3 26.9 23.7 23.4
2017-05-14 25.7 26.0 24.5 24.8 24.6 23.6 23.8
Maximum 27.4 27.4 27.4 27.7 27.8 27.8 27.5
Minimum 17.0 18.6 18.6 18.6 20.0 18.8 19.7
30-year Normals
(1961-1990) 23.2 23.6 23.7 24.0 24.1 24.2 24.2
(1971-2000) 22.7 23.2 23.3 23.3 23.9 24.3 24.4
(1981-2010) 23.6 23.5 23.6 23.5 23.9 24.3 24.5
### means data not available
Column's Maximum in light red background colour
Column's Minimum in light blue background colour



Date
(yyyy-mm-dd)
Daily Mean Relative Humidity recorded at
Hong Kong Observatory
(%)
D-3 D-2 D-1 Day(D) D+1 D+2 D+3
1947-05-11 89 86 85 89 85 87 94
1948-05-09 92 87 93 96 90 90 92
1949-05-08 90 83 83 68 77 88 88
1950-05-14 77 83 94 95 94 93 93
1951-05-13 79 83 93 96 91 85 84
1952-05-11 93 95 94 88 92 87 71
1953-05-10 85 79 85 90 88 86 86
1954-05-09 90 86 84 81 89 91 91
1955-05-08 77 84 80 94 97 96 99
1956-05-13 83 86 92 89 85 89 95
1957-05-12 94 82 81 84 86 88 84
1958-05-11 81 81 82 79 88 84 86
1959-05-10 84 81 85 85 78 81 81
1960-05-08 83 87 90 89 88 74 85
1961-05-14 80 80 90 88 82 81 87
1962-05-13 90 85 82 82 74 77 79
1963-05-12 74 73 72 76 73 73 80
1964-05-10 86 86 85 80 89 79 58
1965-05-09 88 85 84 81 82 92 89
1966-05-08 64 78 79 76 88 87 83
1967-05-14 80 85 80 77 75 67 72
1968-05-12 89 80 77 78 78 85 88
1969-05-11 79 80 82 80 79 84 90
1970-05-10 76 77 76 88 88 93 93
1971-05-09 50 69 69 71 83 89 88
1972-05-14 94 92 88 87 87 74 89
1973-05-13 93 94 95 98 90 80 82
1974-05-12 81 86 79 80 79 81 80
1975-05-11 91 83 82 89 91 84 86
1976-05-09 65 59 80 87 87 88 90
1977-05-08 79 79 73 81 82 79 78
1978-05-14 70 71 77 82 81 89 90
1979-05-13 83 90 94 95 95 95 90
1980-05-11 96 86 83 93 92 89 86
1981-05-10 76 75 83 93 94 90 82
1982-05-09 91 91 79 83 81 83 84
1983-05-08 82 89 86 89 86 80 78
1984-05-13 85 86 87 79 85 81 84
1985-05-12 81 84 79 80 79 80 78
1986-05-11 87 79 85 95 93 83 85
1987-05-10 95 97 88 87 85 84 80
1988-05-08 89 83 79 81 80 83 85
1989-05-14 79 80 80 85 77 86 86
1990-05-13 91 96 85 91 82 85 85
1991-05-12 84 84 83 80 89 83 82
1992-05-10 88 96 94 90 76 71 76
1993-05-09 86 80 81 87 88 89 89
1994-05-08 51 67 66 68 84 79 85
1995-05-14 83 86 87 79 80 87 90
1996-05-12 67 72 85 81 66 74 73
1997-05-11 92 92 93 85 82 81 77
1998-05-10 82 83 85 89 79 81 81
1999-05-09 82 72 85 92 74 77 84
2000-05-14 82 82 79 79 78 71 79
2001-05-13 80 79 75 76 75 80 80
2002-05-12 90 86 79 89 87 83 80
2003-05-11 80 83 80 80 86 85 80
2004-05-09 82 79 91 79 80 86 81
2005-05-08 77 75 77 93 91 94 94
2006-05-14 85 81 75 69 69 76 82
2007-05-13 72 75 77 77 76 78 78
2008-05-11 84 81 79 83 76 63 72
2009-05-10 58 70 76 82 81 78 78
2010-05-09 87 92 92 86 94 89 87
2011-05-08 90 84 80 83 83 76 79
2012-05-13 81 91 88 82 82 89 93
2013-05-12 91 91 84 92 88 91 85
2014-05-11 97 99 95 95 92 89 82
2015-05-10 83 80 83 90 91 75 84
2016-05-08 84 83 81 82 81 87 75
2017-05-14 81 76 80 85 94 85 77
Maximum 97 99 95 98 97 96 99
Minimum 50 59 66 68 66 63 58
30-year Normals
(1961-1990) 82 83 82 84 84 83 84
(1971-2000) 82 83 83 85 84 83 83
(1981-2010) 82 83 82 84 82 81 82
### means data not available
Column's Maximum in light red background colour
Column's Minimum in light blue background colour



Date
(yyyy-mm-dd)
Daily Total Rainfall recorded at
Hong Kong Observatory
(mm)
D-3 D-2 D-1 Day(D) D+1 D+2 D+3
1947-05-11 Trace Trace - Trace Trace 3.1 4.9
1948-05-09 Trace - 56.6 20.3 0.4 3.0 0.6
1949-05-08 Trace - - Trace 1.2 - 23.2
1950-05-14 - - 11.2 46.6 0.8 Trace 15.6
1951-05-13 - - 33.8 180.0 14.4 - 0.3
1952-05-11 21.9 0.8 0.7 - 11.0 0.4 Trace
1953-05-10 Trace - - - 0.7 Trace 10.9
1954-05-09 Trace - - - Trace 1.5 17.5
1955-05-08 Trace Trace - 78.5 103.7 135.0 69.1
1956-05-13 - 0.9 7.4 3.5 0.2 0.5 15.4
1957-05-12 62.3 - - 5.1 10.7 12.5 Trace
1958-05-11 Trace Trace 0.6 Trace 5.3 0.7 Trace
1959-05-10 Trace 0.1 Trace 1.7 - - Trace
1960-05-08 0.9 41.5 1.1 0.4 Trace Trace 2.4
1961-05-14 Trace 49.8 2.0 0.9 - - 0.5
1962-05-13 8.5 Trace - 0.8 - 1.6 0.2
1963-05-12 - - - - - - 1.5
1964-05-10 0.1 Trace - 0.5 41.9 0.6 -
1965-05-09 0.8 Trace 2.1 1.0 3.5 78.0 0.7
1966-05-08 - Trace - Trace 0.8 10.8 Trace
1967-05-14 Trace 0.7 Trace Trace 0.2 - -
1968-05-12 6.2 Trace - - Trace 7.6 2.5
1969-05-11 - Trace - Trace - 8.7 20.3
1970-05-10 - - - 32.6 5.4 89.5 265.1
1971-05-09 - Trace - - 6.5 23.2 14.0
1972-05-14 208.8 4.5 7.4 Trace Trace Trace 11.2
1973-05-13 11.2 0.7 5.8 59.8 0.1 Trace Trace
1974-05-12 Trace - - - Trace - -
1975-05-11 8.7 - - 9.5 19.2 0.5 19.5
1976-05-09 - Trace 1.1 5.3 Trace - 0.2
1977-05-08 - - - Trace 0.2 - -
1978-05-14 - - 0.1 Trace Trace 3.4 Trace
1979-05-13 - 5.3 5.8 68.3 24.2 69.2 2.7
1980-05-11 58.9 0.1 0.5 0.6 - - -
1981-05-10 - - 0.1 82.7 96.1 7.4 Trace
1982-05-09 27.1 55.9 - Trace - Trace Trace
1983-05-08 - 9.4 - 3.5 13.7 Trace Trace
1984-05-13 Trace - - - 36.4 Trace 1.4
1985-05-12 - Trace - - - - -
1986-05-11 Trace Trace 1.7 127.7 44.8 Trace 42.1
1987-05-10 68.8 16.5 Trace Trace Trace - -
1988-05-08 15.3 Trace - Trace Trace 0.1 18.9
1989-05-14 Trace - 5.5 2.3 - 0.1 21.1
1990-05-13 5.7 23.1 8.6 10.6 - Trace Trace
1991-05-12 Trace Trace - - 12.7 - 17.7
1992-05-10 62.1 324.1 16.0 9.1 - - -
1993-05-09 - - - 54.5 0.2 1.0 Trace
1994-05-08 - Trace - - 0.3 Trace 15.5
1995-05-14 Trace 0.4 5.8 Trace 0.4 2.7 0.4
1996-05-12 Trace Trace 1.2 1.9 - - -
1997-05-11 56.6 22.8 45.0 Trace - Trace -
1998-05-10 - Trace 0.9 20.5 Trace - -
1999-05-09 9.1 1.0 10.8 24.0 - - 0.5
2000-05-14 0.6 Trace - - - - Trace
2001-05-13 Trace 0.2 - - - 0.1 1.2
2002-05-12 19.3 56.3 31.3 29.7 6.0 21.2 1.4
2003-05-11 Trace Trace Trace Trace Trace Trace 2.3
2004-05-09 - - 124.4 - - - -
2005-05-08 - 22.6 Trace 37.1 67.5 87.9 0.2
2006-05-14 Trace Trace Trace Trace Trace 1.6 15.0
2007-05-13 - - - - - - 0.1
2008-05-11 Trace - 3.5 Trace - - -
2009-05-10 - - Trace Trace - - Trace
2010-05-09 0.2 29.1 - 3.9 27.6 0.3 Trace
2011-05-08 Trace Trace Trace - - Trace -
2012-05-13 6.1 1.4 0.1 4.6 1.9 22.1 14.4
2013-05-12 31.3 23.4 0.1 1.4 0.2 Trace Trace
2014-05-11 106.3 89.1 12.5 164.5 40.9 57.5 2.0
2015-05-10 0.3 - 7.3 20.1 51.0 - -
2016-05-08 - - - - - 60.3 -
2017-05-14 - Trace 4.7 Trace 38.5 3.0 -
Maximum 208.8 324.1 124.4 180.0 103.7 135.0 265.1
30-year Normals
(1961-1990) 14.0 5.5 1.4 13.5 9.8 10.0 14.1
(1971-2000) 17.8 15.5 3.9 16.0 8.5 3.6 5.5
(1981-2010) 8.8 18.7 8.5 13.6 10.2 4.1 4.6
### means data not available
Column's Maximum in light red background colour
Column's Minimum in light blue background colour



Date
(yyyy-mm-dd)
Daily Mean Cloud Amount recorded at
Hong Kong Observatory
(%)
D-3 D-2 D-1 Day(D) D+1 D+2 D+3
1947-05-11 ### ### ### ### ### ### ###
1948-05-09 ### ### ### ### ### ### ###
1949-05-08 69 29 72 86 98 97 84
1950-05-14 29 61 92 99 71 71 92
1951-05-13 28 72 97 97 86 78 82
1952-05-11 92 91 64 24 70 86 78
1953-05-10 77 50 43 70 83 85 86
1954-05-09 83 75 78 77 79 95 86
1955-05-08 62 69 83 97 97 96 97
1956-05-13 55 84 96 93 94 98 94
1957-05-12 78 71 77 89 92 88 95
1958-05-11 77 79 85 63 84 91 90
1959-05-10 55 54 80 67 39 21 54
1960-05-08 88 85 86 86 68 50 97
1961-05-14 82 95 98 70 44 51 93
1962-05-13 91 67 35 48 46 73 73
1963-05-12 49 70 55 73 59 34 71
1964-05-10 88 74 62 63 99 96 40
1965-05-09 77 85 84 83 82 95 99
1966-05-08 73 67 52 76 83 85 75
1967-05-14 77 78 77 72 88 45 48
1968-05-12 94 53 41 35 46 89 82
1969-05-11 65 51 63 63 78 81 86
1970-05-10 54 76 74 89 88 98 100
1971-05-09 48 48 46 80 92 93 88
1972-05-14 96 88 78 69 59 71 97
1973-05-13 98 100 93 95 81 60 72
1974-05-12 57 83 55 61 42 48 41
1975-05-11 91 79 78 86 86 71 79
1976-05-09 59 91 92 94 90 85 94
1977-05-08 35 25 29 46 52 48 64
1978-05-14 94 79 81 82 82 95 99
1979-05-13 57 90 95 90 93 100 100
1980-05-11 98 94 97 96 77 51 55
1981-05-10 28 55 88 100 96 93 94
1982-05-09 97 80 31 70 82 83 91
1983-05-08 65 85 59 79 80 67 74
1984-05-13 78 76 70 80 89 88 84
1985-05-12 38 42 28 36 58 68 48
1986-05-11 78 70 93 100 96 70 76
1987-05-10 91 96 90 78 41 48 34
1988-05-08 87 72 59 71 72 76 76
1989-05-14 73 71 85 93 84 91 77
1990-05-13 94 97 90 84 57 90 91
1991-05-12 96 89 48 45 85 50 39
1992-05-10 89 94 94 98 85 42 23
1993-05-09 78 59 68 84 89 98 78
1994-05-08 64 82 84 36 79 84 80
1995-05-14 96 95 83 61 85 100 97
1996-05-12 95 93 98 89 34 30 46
1997-05-11 95 97 96 83 84 77 64
1998-05-10 36 49 84 79 75 65 59
1999-05-09 94 87 95 87 53 57 87
2000-05-14 88 89 78 88 56 5 62
2001-05-13 88 76 68 37 60 85 88
2002-05-12 88 89 82 93 81 84 90
2003-05-11 75 87 64 49 85 80 81
2004-05-09 77 84 89 26 52 63 79
2005-05-08 87 69 78 91 92 89 93
2006-05-14 80 49 41 35 88 92 92
2007-05-13 80 74 65 65 58 61 60
2008-05-11 49 65 88 88 66 7 18
2009-05-10 29 42 66 88 68 53 53
2010-05-09 85 87 84 84 84 91 88
2011-05-08 91 76 78 82 63 64 74
2012-05-13 57 88 80 76 67 71 80
2013-05-12 78 77 69 86 73 72 81
2014-05-11 98 98 87 92 87 84 79
2015-05-10 81 84 81 84 85 78 85
2016-05-08 85 84 69 80 69 84 62
2017-05-14 77 86 85 76 86 84 76
Maximum 98 100 98 100 99 100 100
Minimum 28 25 28 24 34 5 18
30-year Normals
(1961-1990) 74 75 69 75 74 75 77
(1971-2000) 76 79 76 78 74 70 72
(1981-2010) 77 77 75 73 74 70 71
### means data not available
Column's Maximum in light red background colour
Column's Minimum in light blue background colour