Hitoyoshi Threshold Days by Year (JA000047824)

13 fixed thresholds counted per year at Hitoyoshi (JA000047824): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hitoyoshi Thresholds

Hitoyoshi: days with a maximum temperature at or above 30 C (86 F) in 68 years, most in 2021 with 98.
Hitoyoshi: days with a maximum temperature at or above 90 F (32.2 C) in 68 years, most in 1994 with 62.
Hitoyoshi: days with 10 mm (0.39 in) or more of precipitation in 53 years, most in 1980 with 79.
Hitoyoshi: days with 25 mm (0.98 in) or more of precipitation in 53 years, most in 2016 with 45.
13 fixed thresholds have at least one qualifying day at Hitoyoshi.

Days at or above 30 C (86 F)

68 years with a qualifying day

Days per year at Hitoyoshi with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 98 in 2021.

Days at or above 30 C (86 F) per year at Hitoyoshi
Year	Days	Decade average
1951	47	61.1
1952	65	61.1
1953	57	61.1
1954	49	61.1
1955	71	61.1
1956	58	61.1
1957	46	61.1
1958	84	61.1
1959	73	61.1
1960	75	65.7
1961	86	65.7
1962	55	65.7
1963	60	65.7
1964	71	65.7
1965	55	65.7
1966	64	65.7
1967	76	65.7
1968	47	65.7
1969	68	65.7
1970	60	57.1
1971	54	57.1
1972	45	57.1
1973	58	57.1
1974	53	57.1
1975	68	57.1
1976	39	57.1
1977	65	57.1
1978	71	57.1
1979	58	57.1
1980	48	58.6
1981	61	58.6
1982	46	58.6
1983	63	58.6
1984	55	58.6
1985	71	58.6
1986	60	58.6
1987	59	58.6
1988	64	58.6
1989	59	58.6
1994	78	66.5
1995	64	66.5
1996	68	66.5
1997	62	66.5
1998	80	66.5
1999	47	66.5
2000	70	76.9
2002	79	76.9
2003	67	76.9
2004	76	76.9
2005	85	76.9
2006	67	76.9
2007	82	76.9
2008	82	76.9
2009	84	76.9
2010	76	72.5
2011	69	72.5
2012	71	72.5
2013	94	72.5
2014	56	72.5
2015	48	72.5
2016	91	72.5
2017	74	72.5
2018	83	72.5
2019	63	72.5
2021	98	87.8
2022	84	87.8
2025	94	87.8
2026	75	87.8

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

First to last qualifying date each year at Hitoyoshi
Year	First date	Last date
1951	1951-05-24	1951-09-13
1952	1952-04-10	1952-09-13
1953	1953-06-21	1953-09-28
1954	1954-07-04	1954-09-24
1955	1955-06-12	1955-09-27
1956	1956-06-04	1956-10-05
1957	1957-05-26	1957-09-08
1958	1958-05-29	1958-09-22
1959	1959-06-15	1959-09-24
1960	1960-05-03	1960-09-27
1961	1961-06-07	1961-10-19
1962	1962-05-21	1962-10-03
1963	1963-05-26	1963-09-10
1964	1964-06-30	1964-09-22
1965	1965-06-06	1965-08-30
1966	1966-06-23	1966-09-13
1967	1967-06-01	1967-09-14
1968	1968-06-06	1968-09-27
1969	1969-05-09	1969-09-26
1970	1970-07-02	1970-09-15
1971	1971-06-26	1971-09-25
1972	1972-06-16	1972-09-07
1973	1973-06-15	1973-09-01
1974	1974-05-28	1974-09-07
1975	1975-06-02	1975-10-04
1976	1976-07-13	1976-09-08
1977	1977-06-04	1977-09-18
1978	1978-05-27	1978-09-17
1979	1979-05-29	1979-09-24
1980	1980-05-11	1980-09-17
1981	1981-06-07	1981-09-06
1982	1982-05-12	1982-09-08
1983	1983-05-14	1983-09-23
1984	1984-06-08	1984-09-09
1985	1985-06-22	1985-09-24
1986	1986-05-12	1986-09-11
1987	1987-05-24	1987-09-14
1988	1988-05-30	1988-09-19
1989	1989-06-06	1989-09-26
1994	1994-05-02	1994-09-15
1995	1995-06-19	1995-09-16
1996	1996-05-26	1996-09-27
1997	1997-05-05	1997-09-14
1998	1998-05-24	1998-10-14
1999	1999-06-14	1999-10-11
2000	2000-05-24	2000-09-21
2002	2002-06-01	2002-10-05
2003	2003-06-06	2003-09-28
2004	2004-04-21	2004-09-28
2005	2005-05-16	2005-10-03
2006	2006-05-21	2006-09-16
2007	2007-05-27	2007-10-06
2008	2008-05-03	2008-09-25
2009	2009-05-09	2009-09-28
2010	2010-06-06	2010-09-22
2011	2011-05-08	2011-09-15
2012	2012-05-28	2012-09-28
2013	2013-05-13	2013-10-10
2014	2014-05-24	2014-09-28
2015	2015-05-19	2015-09-28
2016	2016-05-18	2016-10-08
2017	2017-05-19	2017-10-09
2018	2018-04-20	2018-09-23
2019	2019-05-25	2019-09-30
2021	2021-05-23	2021-10-16
2022	2022-06-02	2022-10-04
2025	2025-06-07	2025-10-17
2026	2026-05-17	2026-09-25

Every Fixed Threshold

Fixed thresholds at Hitoyoshi
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	68	98	2021	75
35 C (95 F): Days	41	21	2016	22
90 F (32.2 C): Days	68	62	1994	50
100 F (37.8 C): Days	2	1	2015	3
0 C (32 F): Ice days (max	5	1	1959	1
0 C (32 F): Frost days (min	41	81	1956	38
20 C (68 F): Tropical nights (min	41	117	2025	110
25 C (77 F): Days with min	22	9	2025	31
10 mm (0.39 in): Days with 10 mm or more rain	53	79	1980	27
25 mm (0.98 in): Days with 25 mm or more rain	53	45	2016	22
50 mm (1.97 in): Days with 50 mm or more rain	53	22	1954	18
100 mm (3.94 in): Days with 100 mm or more rain	50	9	2018	12
200 mm (7.87 in): Days with 200 mm or more rain	12	2	1971	5

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 Hitoyoshi 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).

Hitoyoshi Threshold Days by Year (JA000047824)

Key Facts for Hitoyoshi Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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