Ajiro Threshold Days by Year (JA000047668)

11 fixed thresholds counted per year at Ajiro (JA000047668): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ajiro Thresholds

Ajiro: days with a maximum temperature at or above 30 C (86 F) in 63 years, most in 2010 with 65.
Ajiro: days with a maximum temperature at or above 90 F (32.2 C) in 62 years, most in 2010 with 36.
Ajiro: days with 10 mm (0.39 in) or more of precipitation in 53 years, most in 1989 with 74.
Ajiro: days with 25 mm (0.98 in) or more of precipitation in 53 years, most in 1954 with 32.
11 fixed thresholds have at least one qualifying day at Ajiro.

Days at or above 30 C (86 F)

63 years with a qualifying day

Days per year at Ajiro with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 65 in 2010.

Days at or above 30 C (86 F) per year at Ajiro
Year	Days	Decade average
1951	29	28.1
1952	28	28.1
1953	20	28.1
1954	27	28.1
1955	40	28.1
1956	25	28.1
1957	25	28.1
1958	26	28.1
1959	33	28.1
1960	29	31.5
1961	35	31.5
1962	40	31.5
1963	34	31.5
1964	40	31.5
1965	31	31.5
1966	28	31.5
1967	31	31.5
1968	21	31.5
1969	26	31.5
1970	30	31.7
1971	34	31.7
1972	33	31.7
1973	39	31.7
1974	24	31.7
1975	27	31.7
1976	22	31.7
1977	19	31.7
1978	44	31.7
1979	45	31.7
1980	14	23.5
1981	25	23.5
1982	13	23.5
1983	26	23.5
1984	32	23.5
1985	34	23.5
1986	22	23.5
1987	37	23.5
1988	10	23.5
1989	22	23.5
1995	43	33.4
1996	24	33.4
1997	37	33.4
1998	26	33.4
1999	37	33.4
2000	44	37.7
2005	48	37.7
2006	29	37.7
2007	34	37.7
2008	43	37.7
2009	28	37.7
2010	65	44.9
2011	50	44.9
2012	51	44.9
2013	47	44.9
2014	37	44.9
2015	35	44.9
2016	37	44.9
2017	34	44.9
2018	54	44.9
2019	39	44.9
2022	43	41
2025	58	41
2026	22	41

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

First to last qualifying date each year at Ajiro
Year	First date	Last date
1951	1951-07-09	1951-08-29
1952	1952-06-24	1952-09-14
1953	1953-07-21	1953-09-26
1954	1954-07-25	1954-09-24
1955	1955-06-24	1955-09-14
1956	1956-06-06	1956-09-08
1957	1957-07-05	1957-09-08
1958	1958-06-28	1958-09-18
1959	1959-07-03	1959-09-19
1960	1960-06-28	1960-09-24
1961	1961-05-27	1961-09-26
1962	1962-07-21	1962-09-21
1963	1963-06-21	1963-09-03
1964	1964-07-03	1964-09-21
1965	1965-06-29	1965-09-11
1966	1966-06-21	1966-09-25
1967	1967-06-01	1967-09-04
1968	1968-07-18	1968-08-29
1969	1969-07-21	1969-09-16
1970	1970-07-12	1970-09-13
1971	1971-07-04	1971-09-13
1972	1972-06-11	1972-09-08
1973	1973-07-06	1973-09-11
1974	1974-06-16	1974-09-08
1975	1975-07-08	1975-09-22
1976	1976-07-17	1976-09-11
1977	1977-07-11	1977-09-19
1978	1978-06-15	1978-09-10
1979	1979-06-18	1979-10-01
1980	1980-06-18	1980-09-13
1981	1981-06-23	1981-09-04
1982	1982-08-04	1982-08-29
1983	1983-07-22	1983-09-12
1984	1984-07-03	1984-09-04
1985	1985-07-01	1985-09-05
1986	1986-06-18	1986-09-22
1987	1987-06-06	1987-09-01
1988	1988-07-09	1988-09-16
1989	1989-07-12	1989-09-18
1995	1995-07-11	1995-09-25
1996	1996-07-01	1996-09-02
1997	1997-06-21	1997-09-19
1998	1998-05-25	1998-10-02
1999	1999-06-16	1999-09-25
2000	2000-06-07	2000-09-10
2005	2005-06-25	2005-10-02
2006	2006-06-29	2006-09-19
2007	2007-06-29	2007-09-28
2008	2008-07-04	2008-09-26
2009	2009-05-10	2009-08-29
2010	2010-06-16	2010-09-22
2011	2011-05-10	2011-09-22
2012	2012-06-20	2012-09-20
2013	2013-06-15	2013-09-15
2014	2014-05-31	2014-10-03
2015	2015-07-12	2015-09-02
2016	2016-06-25	2016-10-06
2017	2017-07-03	2017-09-18
2018	2018-06-25	2018-10-07
2019	2019-05-27	2019-09-24
2022	2022-06-25	2022-09-19
2025	2025-06-16	2025-09-18
2026	2026-07-14	2026-09-09

Every Fixed Threshold

Fixed thresholds at Ajiro
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	63	65	2010	22
35 C (95 F): Days	17	7	1995	2
90 F (32.2 C): Days	62	36	2010	5
0 C (32 F): Frost days (min	35	14	1984	1
20 C (68 F): Tropical nights (min	41	120	2025	100
25 C (77 F): Days with min	41	58	2025	25
10 mm (0.39 in): Days with 10 mm or more rain	53	74	1989	13
25 mm (0.98 in): Days with 25 mm or more rain	53	32	1954	11
50 mm (1.97 in): Days with 50 mm or more rain	52	13	1989	11
100 mm (3.94 in): Days with 100 mm or more rain	48	3	1951	7
200 mm (7.87 in): Days with 200 mm or more rain	8	1	1958	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 Ajiro 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).

Ajiro Threshold Days by Year (JA000047668)

Key Facts for Ajiro Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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