Irako Threshold Days by Year

12 fixed thresholds counted per year at Irako (JA000047653): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Irako Thresholds

Irako: days with a maximum temperature at or above 30 C (86 F) in 68 years, most in 2025 with 79.
Irako: days with a maximum temperature at or above 90 F (32.2 C) in 67 years, most in 2025 with 48.
Irako: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 1956 with 61.
Irako: days with 25 mm (0.98 in) or more of precipitation in 52 years, most in 2018 with 28.
12 fixed thresholds have at least one qualifying day at Irako.

Days at or above 30 C (86 F)

68 years with a qualifying day

Days per year at Irako with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 79 in 2025.

Days at or above 30 C (86 F) per year at Irako
Year	Days	Decade average
1951	30	28.9
1952	33	28.9
1953	27	28.9
1954	22	28.9
1955	32	28.9
1956	27	28.9
1957	12	28.9
1958	32	28.9
1959	45	28.9
1960	39	36.6
1961	50	36.6
1962	35	36.6
1963	34	36.6
1964	46	36.6
1965	31	36.6
1966	37	36.6
1967	44	36.6
1968	20	36.6
1969	30	36.6
1970	32	33.4
1971	29	33.4
1972	26	33.4
1973	41	33.4
1974	23	33.4
1975	31	33.4
1976	18	33.4
1977	36	33.4
1978	61	33.4
1979	37	33.4
1980	12	33.5
1981	34	33.5
1982	14	33.5
1983	43	33.5
1984	47	33.5
1985	50	33.5
1986	36	33.5
1987	44	33.5
1988	24	33.5
1989	31	33.5
1992	36	42.2
1993	13	42.2
1994	66	42.2
1995	47	42.2
1996	36	42.2
1998	55	42.2
2000	57	48.9
2002	55	48.9
2003	38	48.9
2004	50	48.9
2005	52	48.9
2006	46	48.9
2007	47	48.9
2008	56	48.9
2009	39	48.9
2010	70	57.2
2011	64	57.2
2012	59	57.2
2013	68	57.2
2014	42	57.2
2015	39	57.2
2016	55	57.2
2017	62	57.2
2018	59	57.2
2019	54	57.2
2021	47	59.5
2022	65	59.5
2025	79	59.5
2026	47	59.5

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

First to last qualifying date each year at Irako
Year	First date	Last date
1951	1951-07-21	1951-09-01
1952	1952-07-17	1952-09-12
1953	1953-07-08	1953-09-16
1954	1954-07-25	1954-08-28
1955	1955-06-29	1955-09-14
1956	1956-06-19	1956-09-03
1957	1957-07-20	1957-08-27
1958	1958-05-31	1958-09-13
1959	1959-07-03	1959-09-19
1960	1960-06-30	1960-09-24
1961	1961-07-02	1961-10-01
1962	1962-05-31	1962-09-21
1963	1963-06-26	1963-09-03
1964	1964-07-03	1964-09-16
1965	1965-07-12	1965-08-26
1966	1966-07-16	1966-09-13
1967	1967-07-13	1967-09-12
1968	1968-07-21	1968-08-21
1969	1969-07-22	1969-09-20
1970	1970-07-18	1970-09-16
1971	1971-06-28	1971-08-29
1972	1972-07-01	1972-09-02
1973	1973-07-06	1973-09-12
1974	1974-07-29	1974-08-31
1975	1975-07-15	1975-09-22
1976	1976-07-15	1976-08-25
1977	1977-07-02	1977-09-14
1978	1978-07-03	1978-09-16
1979	1979-06-24	1979-09-23
1980	1980-07-19	1980-08-24
1981	1981-06-28	1981-09-02
1982	1982-06-12	1982-09-03
1983	1983-07-19	1983-09-12
1984	1984-07-03	1984-09-05
1985	1985-07-05	1985-09-20
1986	1986-07-18	1986-09-09
1987	1987-06-05	1987-09-11
1988	1988-06-15	1988-09-15
1989	1989-07-12	1989-09-16
1992	1992-07-10	1992-09-16
1993	1993-06-17	1993-09-18
1994	1994-06-27	1994-09-12
1995	1995-07-08	1995-09-04
1996	1996-07-03	1996-09-02
1998	1998-06-27	1998-09-14
2000	2000-05-24	2000-09-14
2002	2002-06-05	2002-09-13
2003	2003-06-21	2003-09-19
2004	2004-06-22	2004-09-20
2005	2005-06-27	2005-09-20
2006	2006-06-19	2006-09-10
2007	2007-06-29	2007-09-28
2008	2008-07-04	2008-09-20
2009	2009-06-23	2009-09-08
2010	2010-06-17	2010-09-22
2011	2011-06-23	2011-09-19
2012	2012-07-02	2012-09-16
2013	2013-06-12	2013-10-02
2014	2014-06-01	2014-09-25
2015	2015-05-26	2015-09-02
2016	2016-05-23	2016-09-27
2017	2017-06-19	2017-09-08
2018	2018-06-25	2018-09-16
2019	2019-05-25	2019-09-30
2021	2021-06-08	2021-09-10
2022	2022-05-29	2022-09-17
2025	2025-06-16	2025-09-26
2026	2026-06-21	2026-09-22

Every Fixed Threshold

Fixed thresholds at Irako
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	68	79	2025	47
35 C (95 F): Days	31	16	2013	7
90 F (32.2 C): Days	67	48	2025	20
100 F (37.8 C): Days	2	1	1994	1
0 C (32 F): Frost days (min	41	37	1984	2
20 C (68 F): Tropical nights (min	41	126	2025	113
25 C (77 F): Days with min	41	64	2025	47
10 mm (0.39 in): Days with 10 mm or more rain	52	61	1956	28
25 mm (0.98 in): Days with 25 mm or more rain	52	28	2018	23
50 mm (1.97 in): Days with 50 mm or more rain	52	11	1959	17
100 mm (3.94 in): Days with 100 mm or more rain	35	4	1959	9
200 mm (7.87 in): Days with 200 mm or more rain	8	1	1959	6

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 Irako 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-14. Last revised 14 October 2026 (2026-10-14).

Irako Threshold Days by Year

Key Facts for Irako Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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