Yokohama Threshold Days by Year (JA000047670)

12 fixed thresholds counted per year at Yokohama (JA000047670): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Yokohama Thresholds

Yokohama: days with a maximum temperature at or above 30 C (86 F) in 65 years, most in 2025 with 74.
Yokohama: days with a maximum temperature at or above 90 F (32.2 C) in 65 years, most in 2025 with 49.
Yokohama: days with 10 mm (0.39 in) or more of precipitation in 57 years, most in 1989 with 65.
Yokohama: days with 25 mm (0.98 in) or more of precipitation in 57 years, most in 1977 with 25.
12 fixed thresholds have at least one qualifying day at Yokohama.

Days at or above 30 C (86 F)

65 years with a qualifying day

Days per year at Yokohama with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 74 in 2025.

Days at or above 30 C (86 F) per year at Yokohama
Year	Days	Decade average
1951	34	34.4
1952	37	34.4
1953	21	34.4
1954	37	34.4
1955	42	34.4
1956	33	34.4
1957	31	34.4
1958	33	34.4
1959	42	34.4
1960	43	44.4
1961	60	44.4
1962	54	44.4
1963	46	44.4
1964	47	44.4
1965	34	44.4
1966	39	44.4
1967	50	44.4
1968	32	44.4
1969	39	44.4
1970	41	39.2
1971	40	39.2
1972	36	39.2
1973	43	39.2
1974	33	39.2
1975	48	39.2
1976	23	39.2
1977	33	39.2
1978	53	39.2
1979	42	39.2
1980	16	33
1981	34	33
1982	20	33
1983	30	33
1984	45	33
1985	50	33
1986	37	33
1987	42	33
1988	20	33
1989	36	33
1990	53	41.3
1991	40	41.3
1992	41	41.3
1993	18	41.3
1994	60	41.3
1996	36	41.3
1998	41	41.3
2000	54	42.4
2002	53	42.4
2003	34	42.4
2006	32	42.4
2007	45	42.4
2008	51	42.4
2009	28	42.4
2011	63	52
2013	56	52
2014	44	52
2015	40	52
2016	54	52
2017	46	52
2018	60	52
2019	53	52
2021	47	55.3
2022	57	55.3
2025	74	55.3
2026	43	55.3

For each year, a bar from the first to the last day at Yokohama meeting 30 C (86 F).

First to last qualifying date each year at Yokohama
Year	First date	Last date
1951	1951-07-22	1951-09-03
1952	1952-07-17	1952-09-13
1953	1953-07-24	1953-09-26
1954	1954-07-27	1954-09-24
1955	1955-06-25	1955-09-07
1956	1956-06-06	1956-09-10
1957	1957-07-05	1957-08-31
1958	1958-06-25	1958-09-18
1959	1959-07-06	1959-09-27
1960	1960-06-28	1960-09-24
1961	1961-07-03	1961-09-26
1962	1962-07-12	1962-10-03
1963	1963-06-22	1963-09-03
1964	1964-06-28	1964-09-19
1965	1965-06-29	1965-08-29
1966	1966-06-26	1966-09-11
1967	1967-06-26	1967-09-16
1968	1968-07-18	1968-08-25
1969	1969-07-22	1969-09-16
1970	1970-07-12	1970-09-22
1971	1971-06-26	1971-09-05
1972	1972-07-01	1972-09-08
1973	1973-07-08	1973-09-04
1974	1974-07-09	1974-09-08
1975	1975-07-17	1975-09-22
1976	1976-07-17	1976-09-11
1977	1977-07-03	1977-09-20
1978	1978-07-04	1978-09-10
1979	1979-06-22	1979-10-01
1980	1980-06-25	1980-09-07
1981	1981-06-29	1981-09-02
1982	1982-07-12	1982-09-13
1983	1983-07-25	1983-09-13
1984	1984-07-04	1984-09-10
1985	1985-07-01	1985-09-08
1986	1986-06-26	1986-09-22
1987	1987-06-05	1987-09-10
1988	1988-07-09	1988-09-16
1989	1989-07-12	1989-09-18
1990	1990-06-17	1990-09-20
1991	1991-06-11	1991-09-28
1992	1992-07-09	1992-09-11
1993	1993-06-16	1993-09-18
1994	1994-06-27	1994-09-17
1996	1996-06-29	1996-09-02
1998	1998-06-20	1998-10-02
2000	2000-07-01	2000-09-15
2002	2002-06-09	2002-09-12
2003	2003-06-14	2003-09-19
2006	2006-06-29	2006-09-10
2007	2007-06-19	2007-09-28
2008	2008-07-05	2008-09-13
2009	2009-07-13	2009-09-01
2011	2011-06-22	2011-09-19
2013	2013-06-15	2013-10-12
2014	2014-05-31	2014-10-03
2015	2015-05-31	2015-09-02
2016	2016-06-18	2016-10-06
2017	2017-05-21	2017-09-18
2018	2018-06-09	2018-10-07
2019	2019-05-25	2019-10-05
2021	2021-06-08	2021-09-23
2022	2022-06-24	2022-09-19
2025	2025-06-16	2025-09-26
2026	2026-05-29	2026-09-22

Every Fixed Threshold

Fixed thresholds at Yokohama
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	65	74	2025	43
35 C (95 F): Days	30	7	2018	2
90 F (32.2 C): Days	65	49	2025	17
0 C (32 F): Ice days (max	1	1	1967	1
0 C (32 F): Frost days (min	41	49	1984	2
20 C (68 F): Tropical nights (min	41	121	2025	99
25 C (77 F): Days with min	41	71	2025	30
10 mm (0.39 in): Days with 10 mm or more rain	57	65	1989	20
25 mm (0.98 in): Days with 25 mm or more rain	57	25	1977	15
50 mm (1.97 in): Days with 50 mm or more rain	56	12	2021	11
100 mm (3.94 in): Days with 100 mm or more rain	38	4	2021	2
200 mm (7.87 in): Days with 200 mm or more rain	7	2	2014	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1951.

Download the Data

Data for Yokohama threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Yokohama Threshold Days by Year (JA000047670)

Key Facts for Yokohama Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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