Ranking of air temperature and rainfall in May in Hong Kong

May

Ranking of air temperature and rainfall in Hong Kong at May

1. Highest monthly mean temperature
2. Lowest monthly mean temperature
3. Highest monthly maximum/minimum temperature
4. Lowest monthly maximum/minimum temperature
5. Highest hourly rainfall
6. Highest daily total rainfall
7. Highest monthly total rainfall
8. Lowest monthly total rainfall

Ranking of highest monthly mean temperature(1885 - 2019)

Rank	Highest monthly mean maximum temperature (^oC)	Month of record
1	32.5	1963.05
2	31.7	2018.05
3	31.3	1977.05
4	31.1	1967.05
5	30.2	1994.05
6	30.1	1954.05
7	29.9	1932.05
7	29.9	2015.05
9	29.7	1962.05
9	29.7	1969.05
9	29.7	1974.05
9	29.7	1985.05
9	29.7	2007.05
14	29.6	1952.05
15	29.5	1958.05
16	29.4	2012.05
17	29.3	1973.05
17	29.3	1991.05
17	29.3	2002.05
20	29.2	1975.05

Rank	Highest monthly mean temperature (^oC)	Month of record
1	28.3	2018.05
2	28.2	1963.05
3	28.0	1967.05
4	27.8	1977.05
5	27.5	2015.05
6	27.4	1994.05
7	27.3	1932.05
8	27.0	2002.05
8	27.0	2005.05
8	27.0	2012.05
11	26.9	1952.05
11	26.9	2003.05
13	26.8	1973.05
13	26.8	1985.05
13	26.8	1998.05
16	26.7	1954.05
16	26.7	1962.05
16	26.7	1969.05
16	26.7	2001.05
16	26.7	2016.05

Rank	Highest monthly mean minimum temperature (^oC)	Month of record
1	26.1	2018.05
2	25.9	1967.05
3	25.7	1963.05
4	25.6	1932.05
4	25.6	1994.05
6	25.5	1977.05
6	25.5	2012.05
6	25.5	2015.05
9	25.4	2003.05
10	25.3	2005.05
11	25.2	2002.05
12	25.1	1988.05
13	25.0	1973.05
13	25.0	1985.05
13	25.0	1998.05
13	25.0	2001.05
17	24.9	2016.05
18	24.8	1924.05
18	24.8	1952.05
18	24.8	1962.05

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Ranking of lowest monthly mean temperature(1885 - 2019)

Rank	lowest monthly mean maximum temperature (^oC)	Month of record
1	25.9	1887.05
1	25.9	1909.05
3	26.0	1911.05
4	26.3	1893.05
5	26.4	1892.05
5	26.4	1903.05
5	26.4	1917.05
8	26.5	1886.05
9	26.6	1915.05
10	26.7	1920.05
11	26.9	1918.05
11	26.9	1927.05
11	26.9	1953.05
11	26.9	1979.05
11	26.9	1984.05
16	27.0	1906.05
16	27.0	1907.05
16	27.0	1919.05
19	27.1	1904.05
19	27.1	1908.05
19	27.1	1931.05
19	27.1	1939.05
19	27.1	1992.05

Rank	Lowest monthly mean temperature (^oC)	Month of record
1	23.8	1887.05
1	23.8	1909.05
1	23.8	1917.05
4	24.0	1893.05
5	24.1	1903.05
5	24.1	1915.05
7	24.2	1892.05
7	24.2	1904.05
7	24.2	1911.05
7	24.2	1927.05
7	24.2	1953.05
12	24.3	1886.05
13	24.4	1891.05
13	24.4	1896.05
13	24.4	1939.05
13	24.4	1979.05
17	24.5	1908.05
17	24.5	1920.05
17	24.5	1926.05
20	24.6	1907.05
20	24.6	1918.05
20	24.6	1980.05
20	24.6	1984.05
20	24.6	1990.05

Rank	Lowest monthly mean minimum temperature (^oC)	Month of record
1	21.6	1917.05
2	22.0	1909.05
3	22.1	1904.05
3	22.1	1953.05
5	22.2	1887.05
5	22.2	1893.05
5	22.2	1915.05
8	22.3	1892.05
8	22.3	1908.05
10	22.4	1891.05
10	22.4	1903.05
10	22.4	1927.05
10	22.4	1951.05
14	22.5	1896.05
14	22.5	1939.05
16	22.6	1926.05
16	22.6	1979.05
16	22.6	1980.05
19	22.7	1886.05
19	22.7	1911.05
19	22.7	1950.05
19	22.7	1990.05

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Ranking of monthly temperature(1885 - 2019)

Rank	Highest monthly maximum temperature (^oC)	Month of record
1	35.5	1963.05
2	35.4	2018.05
3	35.2	1976.05
4	34.4	1967.05
5	34.2	1995.05
6	33.6	1977.05
7	33.4	1991.05
8	33.3	1948.05
8	33.3	1954.05
8	33.3	1958.05
8	33.3	1962.05
8	33.3	1964.05
13	33.1	1898.05
14	33.0	2011.05
14	33.0	2013.05
16	32.9	1952.05
16	32.9	1994.05
16	32.9	2007.05
19	32.8	1961.05
19	32.8	1968.05
19	32.8	2014.05

Rank	Highest monthly minimum temperature (^oC)	Month of record
1	24.1	2012.05
2	23.9	1932.05
3	23.6	1967.05
4	22.9	2001.05
5	22.8	1924.05
5	22.8	1930.05
5	22.8	1952.05
5	22.8	1963.05
5	22.8	1977.05
10	22.6	2015.05
10	22.6	2017.05
12	22.3	2002.05
13	22.1	2018.05
14	22.0	1975.05
14	22.0	2005.05
16	21.9	1889.05
16	21.9	1922.05
16	21.9	1969.05
19	21.8	1988.05
20	21.6	1937.05
20	21.6	1973.05
20	21.6	1985.05

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Ranking of lowest annual temperature(1885 - 2019)

Rank	Lowest monthly maximum temperature (^oC)	Month of record
1	29.7	1909.05
2	30.0	1984.05
3	30.4	1907.05
3	30.4	1921.05
5	30.5	1911.05
5	30.5	1918.05
5	30.5	1987.05
8	30.6	1888.05
8	30.6	1903.05
8	30.6	1996.05
11	30.7	1990.05
11	30.7	2010.05
13	30.8	1885.05
13	30.8	1957.05
15	30.9	1891.05
15	30.9	1915.05
17	31.0	1951.05
17	31.0	1983.05
17	31.0	1989.05
17	31.0	1992.05

Rank	Lowest monthly minimum temperature (^oC)	Month of record
1	15.4	1917.05
2	16.6	2013.05
3	16.7	1909.05
4	17.0	1999.05
5	17.3	1904.05
6	17.4	1976.05
7	17.6	1965.05
8	17.7	1953.05
9	17.8	1892.05
10	17.9	1901.05
10	17.9	1984.05
12	18.1	1966.05
13	18.2	1915.05
13	18.2	1991.05
15	18.3	1898.05
15	18.3	1960.05
17	18.4	1908.05
18	18.5	1981.05
19	18.6	1893.05
19	18.6	1925.05

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Ranking of highest hourly rainfall(1884 - 2019)

Rank	Highest hourly rainfall (mm)	Date of record	Time of record
1	109.9	1992.05.08	07
2	104.8	1989.05.02	13
3	86.4	1889.05.30	04
4	85.1	1889.05.29	11
5	84.7	2013.05.22	05
6	82.6	1921.05.31	14
7	81.3	1889.05.30	03
8	78.8	1972.05.11	04
9	77.9	1889.05.29	10
10	76.2	1889.05.30	05
11	75.6	1970.05.13	10
12	75.5	2014.05.08	23
13	69.6	1888.05.19	13
13	69.6	1939.05.22	06
15	66.9	2017.05.24	12
16	66.6	1958.05.23	05
17	64.0	1970.05.13	09
18	62.6	1994.05.03	09
19	58.5	1973.05.06	11
20	58.4	1889.05.30	02

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Ranking of highest daily rainfall(1884 - 2019)

Rank	Highest daily total rainfall (mm)	Date of record
1	520.6	1889.05.30
2	324.1	1992.05.08
3	322.8	1989.05.20
4	320.6	1889.05.29
5	273.6	2017.05.24
6	265.1	1970.05.13
7	264.3	1891.05.14
8	258.4	1982.05.29
9	248.5	1964.05.28
10	246.2	1957.05.22
11	230.8	2013.05.22
12	215.7	1975.05.20
13	208.8	1972.05.11
14	208.4	1989.05.02
15	205.5	1982.05.31
16	184.3	1927.05.23
17	180.0	1951.05.13
18	179.0	1982.05.28
19	171.4	1902.05.13
20	169.4	2015.05.23

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Ranking of highest monthly total rainfall(1884 - 2019)

Rank	Highest monthly total rainfall (mm)	Month of record
1	1241.1	1889.05
2	894.2	1957.05
3	858.4	1921.05
4	771.9	1989.05
5	767.4	1982.05
6	711.1	1891.05
7	687.3	2014.05
8	678.9	1902.05
9	654.5	1972.05
10	646.2	1927.05
11	602.3	1992.05
12	571.5	1975.05
13	563.6	1911.05
14	553.8	1951.05
15	532.8	1939.05
16	531.8	1970.05
17	516.6	1973.05
18	513.0	2015.05
19	509.3	2013.05
20	508.6	2005.05

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Ranking of lowest monthly total rainfall(1884 - 2019)

Rank	Lowest monthly total rainfall (mm)	Month of record
1	6.0	1963.05
2	20.8	1995.05
3	28.7	1967.05
4	28.9	1896.05
5	33.6	1908.05
6	44.9	1886.05
7	49.5	1910.05
8	52.1	1887.05
9	57.5	2018.05
10	60.9	1991.05
11	63.9	1932.05
12	65.6	1925.05
13	78.9	1954.05
14	90.1	1959.05
15	96.1	1923.05
16	100.3	1912.05
17	102.4	1990.05
18	103.3	1985.05
19	114.7	1933.05
20	115.2	1988.05

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*observation came from Hong Kong Observatory