Tsu Threshold Days by Year (JA000047651)

12 fixed thresholds counted per year at Tsu (JA000047651): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tsu Thresholds

Tsu: days with 10 mm (0.39 in) or more of precipitation in 59 years, most in 1957 with 60.
Tsu: days with 25 mm (0.98 in) or more of precipitation in 59 years, most in 1954 with 31.
Tsu: days with 50 mm (1.97 in) or more of precipitation in 59 years, most in 1974 with 13.
Tsu: days with a maximum temperature at or above 30 C (86 F) in 58 years, most in 2025 with 82.
12 fixed thresholds have at least one qualifying day at Tsu.

Days at or above 30 C (86 F)

58 years with a qualifying day

Days per year at Tsu with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 82 in 2025.

Days at or above 30 C (86 F) per year at Tsu
Year	Days	Decade average
1951	38	34.6
1952	43	34.6
1953	32	34.6
1954	27	34.6
1955	40	34.6
1956	32	34.6
1957	25	34.6
1958	31	34.6
1959	43	34.6
1960	43	42.4
1961	55	42.4
1962	45	42.4
1963	45	42.4
1964	54	42.4
1965	34	42.4
1966	41	42.4
1967	45	42.4
1968	26	42.4
1969	36	42.4
1970	41	42.8
1971	36	42.8
1972	38	42.8
1973	51	42.8
1974	32	42.8
1975	49	42.8
1976	30	42.8
1977	43	42.8
1978	67	42.8
1979	41	42.8
1980	18	40.4
1981	40	40.4
1982	16	40.4
1983	49	40.4
1984	50	40.4
1985	62	40.4
1986	46	40.4
1987	56	40.4
1988	36	40.4
1989	31	40.4
1992	43	48.2
1993	25	48.2
1994	73	48.2
1996	43	48.2
1998	57	48.2
2000	61	50.4
2003	38	50.4
2004	53	50.4
2006	55	50.4
2007	51	50.4
2008	53	50.4
2009	42	50.4
2010	71	60.4
2011	61	60.4
2012	58	60.4
2018	61	60.4
2019	51	60.4
2025	82	66
2026	50	66

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

First to last qualifying date each year at Tsu
Year	First date	Last date
1951	1951-06-20	1951-09-01
1952	1952-06-28	1952-09-17
1953	1953-06-16	1953-09-15
1954	1954-07-01	1954-09-15
1955	1955-06-29	1955-09-16
1956	1956-06-06	1956-09-09
1957	1957-06-14	1957-09-08
1958	1958-05-30	1958-09-13
1959	1959-07-03	1959-09-19
1960	1960-06-06	1960-09-08
1961	1961-06-06	1961-10-01
1962	1962-05-31	1962-09-22
1963	1963-06-22	1963-09-07
1964	1964-06-07	1964-09-15
1965	1965-06-24	1965-08-26
1966	1966-06-21	1966-09-25
1967	1967-05-30	1967-09-15
1968	1968-07-19	1968-08-21
1969	1969-05-09	1969-09-19
1970	1970-05-18	1970-09-13
1971	1971-06-17	1971-08-29
1972	1972-06-09	1972-09-08
1973	1973-06-23	1973-09-12
1974	1974-06-02	1974-09-08
1975	1975-07-07	1975-09-20
1976	1976-06-24	1976-09-11
1977	1977-05-20	1977-09-18
1978	1978-05-28	1978-09-11
1979	1979-05-23	1979-09-16
1980	1980-06-05	1980-09-12
1981	1981-06-29	1981-09-04
1982	1982-06-08	1982-09-03
1983	1983-06-01	1983-09-16
1984	1984-06-27	1984-10-03
1985	1985-06-20	1985-10-13
1986	1986-06-19	1986-09-21
1987	1987-06-05	1987-09-02
1988	1988-05-18	1988-09-17
1989	1989-06-07	1989-09-16
1992	1992-07-08	1992-09-17
1993	1993-05-13	1993-09-18
1994	1994-05-08	1994-09-30
1996	1996-06-29	1996-09-02
1998	1998-06-27	1998-09-25
2000	2000-05-09	2000-09-18
2003	2003-06-05	2003-09-19
2004	2004-05-30	2004-09-21
2006	2006-06-01	2006-09-18
2007	2007-05-08	2007-09-28
2008	2008-05-26	2008-09-23
2009	2009-05-20	2009-09-26
2010	2010-05-21	2010-09-22
2011	2011-05-10	2011-09-19
2012	2012-07-02	2012-09-28
2018	2018-06-24	2018-09-19
2019	2019-05-24	2019-09-30
2025	2025-06-15	2025-09-26
2026	2026-05-17	2026-09-24

Every Fixed Threshold

Fixed thresholds at Tsu
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	58	82	2025	50
35 C (95 F): Days	48	13	2010	9
90 F (32.2 C): Days	57	49	2025	25
100 F (37.8 C): Days	6	4	1994	1
0 C (32 F): Frost days (min	41	60	1984	7
20 C (68 F): Tropical nights (min	41	123	2025	111
25 C (77 F): Days with min	39	82	2025	45
10 mm (0.39 in): Days with 10 mm or more rain	59	60	1957	12
25 mm (0.98 in): Days with 25 mm or more rain	59	31	1954	7
50 mm (1.97 in): Days with 50 mm or more rain	59	13	1974	3
100 mm (3.94 in): Days with 100 mm or more rain	41	4	1959	3
200 mm (7.87 in): Days with 200 mm or more rain	8	1	1952	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 Tsu 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).

Tsu Threshold Days by Year (JA000047651)

Key Facts for Tsu Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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