Ibukiyama Mtn (Aut) Threshold Days by Year (JA000047751)

3 fixed thresholds counted per year at Ibukiyama Mtn (Aut) (JA000047751): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ibukiyama Mtn (Aut) Thresholds

Ibukiyama Mtn (Aut): days with a maximum temperature at or below 0 C (32 F) in 39 years, most in 1984 with 103.
Ibukiyama Mtn (Aut): nights with a minimum temperature at or below 0 C (32 F) in 39 years, most in 1988 with 165.
Ibukiyama Mtn (Aut): nights with a minimum temperature at or below -10 C (14 F) in 39 years, most in 1984 with 50.
3 fixed thresholds have at least one qualifying day at Ibukiyama Mtn (Aut).

Nights at or below 0 C (32 F)

39 years with a qualifying day

Days per year at Ibukiyama Mtn (Aut) with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 165 in 1988.

Nights at or below 0 C (32 F) per year at Ibukiyama Mtn (Aut)
Year	Days	Decade average
1951	147	131.8
1952	136	131.8
1953	142	131.8
1954	118	131.8
1955	128	131.8
1956	143	131.8
1957	126	131.8
1958	128	131.8
1959	118	131.8
1960	129	137.5
1961	127	137.5
1962	137	137.5
1963	130	137.5
1964	142	137.5
1965	154	137.5
1966	142	137.5
1967	144	137.5
1968	127	137.5
1969	143	137.5
1970	149	142.2
1971	141	142.2
1972	136	142.2
1973	144	142.2
1974	150	142.2
1975	134	142.2
1976	150	142.2
1977	134	142.2
1978	145	142.2
1979	139	142.2
1980	155	145.9
1981	151	145.9
1982	139	145.9
1983	141	145.9
1984	152	145.9
1985	140	145.9
1986	150	145.9
1987	136	145.9
1988	165	145.9
1989	130	145.9

For each year, a bar from the first to the last day at Ibukiyama Mtn (Aut) meeting 0 C (32 F).

First to last qualifying date each year at Ibukiyama Mtn (Aut)
Year	First date	Last date
1951	1951-01-01	1951-12-31
1952	1952-01-01	1952-12-31
1953	1953-01-01	1953-12-31
1954	1954-01-01	1954-12-31
1955	1955-01-01	1955-12-31
1956	1956-01-01	1956-12-31
1957	1957-01-01	1957-12-31
1958	1958-01-01	1958-12-31
1959	1959-01-01	1959-12-31
1960	1960-01-01	1960-12-31
1961	1961-01-01	1961-12-31
1962	1962-01-01	1962-12-31
1963	1963-01-01	1963-12-31
1964	1964-01-01	1964-12-31
1965	1965-01-01	1965-12-31
1966	1966-01-01	1966-12-31
1967	1967-01-01	1967-12-31
1968	1968-01-01	1968-12-31
1969	1969-01-01	1969-12-31
1970	1970-01-01	1970-12-31
1971	1971-01-01	1971-12-30
1972	1972-01-01	1972-12-31
1973	1973-01-01	1973-12-31
1974	1974-01-01	1974-12-31
1975	1975-01-01	1975-12-31
1976	1976-01-01	1976-12-31
1977	1977-01-01	1977-12-29
1978	1978-01-01	1978-12-31
1979	1979-01-01	1979-12-31
1980	1980-01-01	1980-12-31
1981	1981-01-01	1981-12-31
1982	1982-01-01	1982-12-31
1983	1983-01-01	1983-12-31
1984	1984-01-01	1984-12-31
1985	1985-01-01	1985-12-31
1986	1986-01-01	1986-12-31
1987	1987-01-01	1987-12-31
1988	1988-01-01	1988-12-31
1989	1989-01-01	1989-12-31

Every Fixed Threshold

Fixed thresholds at Ibukiyama Mtn (Aut)
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
0 C (32 F): Ice days (max	39	103	1984	58
0 C (32 F): Frost days (min	39	165	1988	130
-10 C (14 F): Days with min	39	50	1984	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 Ibukiyama Mtn (Aut) 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).

Ibukiyama Mtn (Aut) Threshold Days by Year (JA000047751)

Key Facts for Ibukiyama Mtn (Aut) Thresholds

Nights at or below 0 C (32 F)

Every Fixed Threshold

Download the Data

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