Yakushima Threshold Days by Year (JA000047836)

10 fixed thresholds counted per year at Yakushima (JA000047836): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Yakushima Thresholds

Yakushima: days with 10 mm (0.39 in) or more of precipitation in 27 years, most in 2015 with 109.
Yakushima: days with 25 mm (0.98 in) or more of precipitation in 27 years, most in 2014 with 68.
Yakushima: days with 50 mm (1.97 in) or more of precipitation in 27 years, most in 2014 with 36.
Yakushima: days with 100 mm (3.94 in) or more of precipitation in 27 years, most in 1983 with 9.
10 fixed thresholds have at least one qualifying day at Yakushima.

Days at or above 30 C (86 F)

23 years with a qualifying day

Days per year at Yakushima with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 75 in 1956.

Days at or above 30 C (86 F) per year at Yakushima
Year	Days	Decade average
1955	60	64
1956	75	64
1957	44	64
1958	73	64
1959	68	64
1960	62	63.5
1962	62	63.5
1963	68	63.5
1964	62	63.5
1981	52	43.2
1982	19	43.2
1983	45	43.2
1984	40	43.2
1985	31	43.2
1986	60	43.2
1987	52	43.2
1988	48	43.2
1989	42	43.2
1992	35	39.5
1993	44	39.5
2013	69	47.3
2014	41	47.3
2015	32	47.3

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

First to last qualifying date each year at Yakushima
Year	First date	Last date
1955	1955-06-18	1955-09-23
1956	1956-06-04	1956-09-25
1957	1957-06-26	1957-08-31
1958	1958-06-11	1958-09-22
1959	1959-06-30	1959-09-17
1960	1960-06-21	1960-09-28
1962	1962-06-14	1962-10-11
1963	1963-05-27	1963-09-11
1964	1964-06-27	1964-09-21
1981	1981-06-21	1981-10-08
1982	1982-07-13	1982-09-03
1983	1983-07-03	1983-09-28
1984	1984-06-26	1984-10-03
1985	1985-06-21	1985-09-20
1986	1986-06-23	1986-09-19
1987	1987-07-03	1987-09-10
1988	1988-05-03	1988-09-06
1989	1989-05-11	1989-09-28
1992	1992-07-09	1992-09-06
1993	1993-06-14	1993-09-18
2013	2013-06-18	2013-10-11
2014	2014-07-03	2014-09-25
2015	2015-06-11	2015-10-01

Every Fixed Threshold

Fixed thresholds at Yakushima
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	23	75	1956	32
35 C (95 F): Days	1	1	2013	1
90 F (32.2 C): Days	22	33	2013	3
20 C (68 F): Tropical nights (min	14	131	1987	44
25 C (77 F): Days with min	14	19	1981	17
10 mm (0.39 in): Days with 10 mm or more rain	27	109	2015	54
25 mm (0.98 in): Days with 25 mm or more rain	27	68	2014	40
50 mm (1.97 in): Days with 50 mm or more rain	27	36	2014	15
100 mm (3.94 in): Days with 100 mm or more rain	27	9	1983	5
200 mm (7.87 in): Days with 200 mm or more rain	20	3	1985	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1955.

Download the Data

Data for Yakushima 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Yakushima Threshold Days by Year (JA000047836)

Key Facts for Yakushima Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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