Number of Days Over 30 degrees C (86 F) in Tokyo

According to Japan Meteorological Agency, there were average 48.5 days in which the highest temperature exceeded 30 degrees C (86 F). It was the average number in last two decades. The following table shows the detail.

There were 71 "tropical days" in 2010, and it is the record of the largest number.

Table: Number of Days Over 30 degrees C (86 F) in Tokyo

	May	June	July	August	September	October	Days Total
1876	0	0	13	25	11	0	49
1877	0	3	25	22	2	0	52
1878	0	0	18	11	3	0	32
1879	0	0	20	26	0	0	46
1880	0	0	7	18	3	0	28
1881	0	2	6	26	11	0	45
1882	0	0	10	7	0	0	17
1883	0	0	11	13	4	0	28
1884	0	0	5	7	3	0	15
1885	0	1	2	8	4	0	15
1886	0	1	11	23	3	0	38
1887	0	0	3	11	2	0	16
1888	0	0	9	17	2	0	28
1889	0	3	4	22	0	0	29
1890	0	2	8	7	5	0	22
1891	0	0	7	14	14	0	35
1892	0	0	16	21	15	0	52
1893	0	1	21	20	8	0	50
1894	0	10	27	25	2	0	64
1895	0	1	3	18	9	0	31
1896	0	2	10	22	6	0	40
1897	0	0	6	15	7	0	28
1898	0	1	18	22	4	0	45
1899	0	2	0	21	0	0	23
1900	0	0	4	20	9	0	33
1901	0	1	7	19	3	0	30
1902	0	0	2	7	0	0	9
1903	0	0	5	21	9	0	35
1904	0	1	10	20	3	0	34
1905	0	0	6	6	6	0	18
1906	0	0	10	14	0	0	24
1907	0	0	4	20	3	0	27
1908	0	2	6	18	0	0	26
1909	0	0	17	17	5	0	39
1910	0	1	2	10	6	0	19
1911	0	1	11	15	5	0	32
1912	0	0	13	21	1	0	35
1913	0	1	9	12	0	0	22
1914	0	2	19	24	9	0	54
1915	0	2	16	15	6	2	41
1916	0	3	10	15	15	0	43
1917	0	4	18	15	3	1	41
1918	0	1	19	21	9	0	50
1919	0	1	5	17	9	0	32
1920	0	0	22	13	3	0	38
1921	0	0	9	19	1	0	29
1922	0	1	11	28	13	0	53
1923	0	0	12	26	10	0	48
1924	0	1	23	20	5	0	49
1925	0	0	8	17	3	1	29
1926	0	1	12	19	8	0	40
1927	0	1	19	27	4	0	51
1928	0	0	4	5	14	0	23
1929	0	1	19	26	3	0	49
1930	0	0	16	22	5	0	43
1931	0	0	2	21	4	0	27
1932	0	0	14	20	4	0	38
1933	0	1	19	28	12	0	60
1934	0	2	11	22	0	0	35
1935	0	1	8	13	3	0	25
1936	0	2	16	19	14	0	51
1937	0	0	16	30	6	0	52
1938	0	2	14	15	1	1	33
1939	0	0	20	17	5	0	42
1940	1	1	24	17	8	0	51
1941	0	1	14	13	2	0	30
1942	0	2	24	21	12	0	59
1943	1	0	17	29	8	0	55
1944	1	4	15	27	7	0	54
1945	0	2	1	23	2	0	28
1946	0	9	19	24	11	0	63
1947	0	0	24	28	4	0	56
1948	0	2	23	18	11	0	54
1949	0	1	15	25	4	0	45
1950	0	4	24	22	15	0	65
1951	0	2	14	24	2	0	42
1952	0	2	10	23	6	0	41
1953	0	1	10	16	2	0	29
1954	0	0	5	25	11	0	41
1955	0	6	28	17	6	0	57
1956	1	5	10	15	9	0	40
1957	0	0	6	25	1	0	32
1958	1	7	8	19	7	0	42
1959	1	0	18	20	9	0	48
1960	0	3	17	19	7	0	46
1961	1	1	25	23	16	0	66
1962	0	0	14	26	18	0	58
1963	2	7	18	21	3	0	51
1964	1	2	16	26	7	0	52
1965	0	3	7	19	0	0	29
1966	0	3	10	19	7	0	39
1967	1	1	20	26	4	0	52
1968	0	1	9	22	0	0	32
1969	1	0	18	27	6	0	52
1970	1	1	15	25	9	0	51
1971	0	1	17	21	2	0	41
1972	0	2	13	20	5	0	40
1973	0	0	18	29	5	0	52
1974	0	0	10	25	4	0	39
1975	0	0	17	24	21	0	62
1976	0	0	13	15	3	0	31
1977	1	0	17	13	10	0	41
1978	0	6	26	29	2	0	63
1979	0	10	12	23	7	1	53
1980	0	4	7	5	5	0	21
1981	0	1	19	16	5	0	41
1982	0	0	2	19	3	0	24
1983	0	0	8	19	8	0	35
1984	0	1	17	27	5	1	51
1985	0	1	19	27	7	0	54
1986	0	1	7	20	5	0	33
1987	0	4	19	21	6	0	50
1988	0	0	2	18	1	0	21
1989	0	1	10	23	13	0	47
1990	0	4	17	27	12	0	60
1991	0	8	16	13	8	0	45
1992	0	0	16	23	7	0	46
1993	1	2	5	10	1	0	19
1994	0	1	25	27	13	0	66
1995	0	0	14	29	7	0	50
1996	1	4	21	18	2	0	46
1997	0	6	22	23	7	0	58
1998	0	4	14	22	7	1	48
1999	1	2	17	28	15	0	63
2000	1	3	24	29	10	0	67
2001	0	6	27	16	3	0	52
2002	0	4	24	25	6	0	59
2003	0	4	3	17	14	0	38
2004	3	8	26	21	12	0	70
2005	0	5	14	25	12	1	57
2006	0	2	10	20	6	0	38
2007	0	8	8	27	12	0	55
2008	0	0	23	20	10	0	53
2009	0	2	14	21	1	0	38
2010	1	4	22	30	14	0	71
2011	0	6	20	21	14	0	61
2012	0	1	17	29	18	1	66
2013	0	1	19	28	8	2	58
Average	0.3	2.9	15.5	22	7.7	0.1	48.5

Source is Japan Meteorological Agency.

www.jma-net.go.jp/tokyo/sub_index/kiroku/kiroku/data/41.htm

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