Shimonoseki Threshold Days by Year (JA000047762)

12 fixed thresholds counted per year at Shimonoseki (JA000047762): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Shimonoseki Thresholds

Shimonoseki: days with a maximum temperature at or above 30 C (86 F) in 68 years, most in 1978 with 70.
Shimonoseki: days with a maximum temperature at or above 90 F (32.2 C) in 66 years, most in 1994 with 40.
Shimonoseki: days with 10 mm (0.39 in) or more of precipitation in 57 years, most in 1972 with 72.
Shimonoseki: days with 25 mm (0.98 in) or more of precipitation in 57 years, most in 1980 with 35.
12 fixed thresholds have at least one qualifying day at Shimonoseki.

Days at or above 30 C (86 F)

68 years with a qualifying day

Days per year at Shimonoseki with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 70 in 1978.

Days at or above 30 C (86 F) per year at Shimonoseki
Year	Days	Decade average
1951	31	34.9
1952	39	34.9
1953	37	34.9
1954	31	34.9
1955	42	34.9
1956	39	34.9
1957	23	34.9
1958	38	34.9
1959	34	34.9
1960	47	40.9
1961	54	40.9
1962	32	40.9
1963	28	40.9
1964	54	40.9
1965	24	40.9
1966	55	40.9
1967	56	40.9
1968	25	40.9
1969	34	40.9
1970	34	35.2
1971	28	35.2
1972	26	35.2
1973	41	35.2
1974	17	35.2
1975	50	35.2
1976	21	35.2
1977	24	35.2
1978	70	35.2
1979	41	35.2
1980	13	33
1981	43	33
1982	25	33
1983	37	33
1984	42	33
1985	51	33
1986	37	33
1987	23	33
1988	20	33
1989	39	33
1990	62	42.3
1991	36	42.3
1992	32	42.3
1993	7	42.3
1994	68	42.3
1996	38	42.3
1998	53	42.3
2000	57	49.8
2002	56	49.8
2003	29	49.8
2004	52	49.8
2006	49	49.8
2007	51	49.8
2008	63	49.8
2009	41	49.8
2010	61	49.1
2011	58	49.1
2013	62	49.1
2014	25	49.1
2015	27	49.1
2016	52	49.1
2017	56	49.1
2018	60	49.1
2019	41	49.1
2020	41	54.4
2021	44	54.4
2022	63	54.4
2025	70	54.4
2026	54	54.4

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

First to last qualifying date each year at Shimonoseki
Year	First date	Last date
1951	1951-07-21	1951-08-30
1952	1952-06-30	1952-09-12
1953	1953-07-06	1953-09-14
1954	1954-07-25	1954-09-11
1955	1955-06-24	1955-09-17
1956	1956-07-12	1956-09-07
1957	1957-07-13	1957-08-29
1958	1958-07-08	1958-09-16
1959	1959-06-29	1959-09-16
1960	1960-07-01	1960-09-24
1961	1961-06-28	1961-09-29
1962	1962-07-11	1962-09-07
1963	1963-06-25	1963-08-29
1964	1964-06-18	1964-09-13
1965	1965-07-10	1965-08-26
1966	1966-06-25	1966-09-11
1967	1967-06-20	1967-09-11
1968	1968-07-16	1968-09-20
1969	1969-07-21	1969-09-16
1970	1970-07-14	1970-09-11
1971	1971-07-01	1971-09-04
1972	1972-06-30	1972-09-05
1973	1973-07-13	1973-08-31
1974	1974-07-09	1974-08-31
1975	1975-07-06	1975-09-16
1976	1976-07-13	1976-08-30
1977	1977-07-14	1977-09-13
1978	1978-05-27	1978-09-09
1979	1979-06-20	1979-09-14
1980	1980-07-11	1980-09-05
1981	1981-06-08	1981-08-31
1982	1982-05-13	1982-09-02
1983	1983-07-04	1983-09-06
1984	1984-06-19	1984-09-03
1985	1985-07-10	1985-09-19
1986	1986-06-24	1986-09-05
1987	1987-07-06	1987-09-10
1988	1988-07-07	1988-08-17
1989	1989-07-11	1989-09-27
1990	1990-06-21	1990-09-12
1991	1991-06-11	1991-09-08
1992	1992-07-10	1992-09-08
1993	1993-07-10	1993-09-17
1994	1994-06-26	1994-09-10
1996	1996-06-16	1996-09-02
1998	1998-06-26	1998-09-21
2000	2000-05-25	2000-09-07
2002	2002-06-06	2002-09-11
2003	2003-07-09	2003-09-09
2004	2004-06-20	2004-09-15
2006	2006-06-28	2006-09-05
2007	2007-05-27	2007-09-23
2008	2008-07-03	2008-09-25
2009	2009-06-22	2009-09-11
2010	2010-07-01	2010-09-22
2011	2011-06-23	2011-09-15
2013	2013-06-12	2013-09-23
2014	2014-05-31	2014-09-11
2015	2015-07-09	2015-08-23
2016	2016-07-02	2016-10-03
2017	2017-07-01	2017-09-10
2018	2018-06-25	2018-09-05
2019	2019-05-25	2019-09-17
2020	2020-06-22	2020-09-10
2021	2021-06-09	2021-10-05
2022	2022-06-23	2022-10-04
2025	2025-06-16	2025-09-17
2026	2026-07-07	2026-09-13

Every Fixed Threshold

Fixed thresholds at Shimonoseki
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	68	70	1978	54
35 C (95 F): Days	15	8	2016	2
90 F (32.2 C): Days	66	40	1994	33
0 C (32 F): Ice days (max	2	1	1976	1
0 C (32 F): Frost days (min	37	25	1963	1
20 C (68 F): Tropical nights (min	38	127	2025	131
25 C (77 F): Days with min	38	75	2025	57
10 mm (0.39 in): Days with 10 mm or more rain	57	72	1972	26
25 mm (0.98 in): Days with 25 mm or more rain	57	35	1980	19
50 mm (1.97 in): Days with 50 mm or more rain	57	18	1980	10
100 mm (3.94 in): Days with 100 mm or more rain	40	4	2006	8
200 mm (7.87 in): Days with 200 mm or more rain	5	1	1953	1

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 Shimonoseki 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).

Shimonoseki Threshold Days by Year (JA000047762)

Key Facts for Shimonoseki Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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