Futenma Threshold Days by Year (JAW00042215)

11 fixed thresholds counted per year at Futenma (JAW00042215): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Futenma Thresholds

Futenma: days with a maximum temperature at or above 30 C (86 F) in 38 years, most in 1991 with 120.
Futenma: nights with a minimum temperature at or above 20 C (68 F) in 38 years, most in 1998 with 226.
Futenma: nights with a minimum temperature at or above 25 C (77 F) in 38 years, most in 1983 with 122.
Futenma: days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 1978 with 82.
11 fixed thresholds have at least one qualifying day at Futenma.

Days at or above 30 C (86 F)

38 years with a qualifying day

Days per year at Futenma with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 120 in 1991.

Days at or above 30 C (86 F) per year at Futenma
Year	Days	Decade average
1961	93	78.5
1962	81	78.5
1963	101	78.5
1965	60	78.5
1966	55	78.5
1968	81	78.5
1970	90	78.8
1971	84	78.8
1972	70	78.8
1973	26	78.8
1974	62	78.8
1975	92	78.8
1976	68	78.8
1977	111	78.8
1978	88	78.8
1979	97	78.8
1980	114	95.9
1981	83	95.9
1982	86	95.9
1983	117	95.9
1984	85	95.9
1985	89	95.9
1986	97	95.9
1987	90	95.9
1988	107	95.9
1989	91	95.9
1990	103	102.6
1991	120	102.6
1992	93	102.6
1993	103	102.6
1994	93	102.6
1995	108	102.6
1996	108	102.6
1997	93	102.6
1998	102	102.6
2002	99	98
2003	97	98
2025	48	48

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

First to last qualifying date each year at Futenma
Year	First date	Last date
1961	1961-05-18	1961-10-04
1962	1962-06-04	1962-09-28
1963	1963-05-15	1963-10-01
1965	1965-06-18	1965-09-07
1966	1966-06-18	1966-09-14
1968	1968-06-24	1968-10-06
1970	1970-05-09	1970-10-14
1971	1971-05-24	1971-10-06
1972	1972-05-26	1972-09-15
1973	1973-06-19	1973-09-21
1974	1974-05-23	1974-10-30
1975	1975-04-15	1975-09-27
1976	1976-04-23	1976-10-08
1977	1977-05-06	1977-10-25
1978	1978-05-30	1978-10-13
1979	1979-05-13	1979-09-25
1980	1980-05-13	1980-10-19
1981	1981-05-02	1981-10-08
1982	1982-05-09	1982-10-05
1983	1983-04-28	1983-10-22
1984	1984-06-06	1984-11-25
1985	1985-05-07	1985-10-15
1986	1986-05-03	1986-09-26
1987	1987-05-23	1987-11-02
1988	1988-06-02	1988-10-21
1989	1989-05-23	1989-10-06
1990	1990-06-04	1990-10-12
1991	1991-05-18	1991-10-01
1992	1992-06-06	1992-10-04
1993	1993-05-01	1993-10-12
1994	1994-06-07	1994-09-21
1995	1995-04-28	1995-10-23
1996	1996-06-05	1996-11-02
1997	1997-04-29	1997-09-23
1998	1998-05-11	1998-10-13
2002	2002-04-22	2002-10-18
2003	2003-05-07	2003-09-28
2025	2025-05-20	2025-09-24

Every Fixed Threshold

Fixed thresholds at Futenma
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	38	120	1991	48
35 C (95 F): Days	5	2	1980	1
90 F (32.2 C): Days	37	75	1991	2
0 C (32 F): Frost days (min	1	1	1988	1
20 C (68 F): Tropical nights (min	38	226	1998	86
25 C (77 F): Days with min	38	122	1983	55
10 mm (0.39 in): Days with 10 mm or more rain	38	82	1978	32
25 mm (0.98 in): Days with 25 mm or more rain	38	45	1998	13
50 mm (1.97 in): Days with 50 mm or more rain	38	20	1975	5
100 mm (3.94 in): Days with 100 mm or more rain	32	6	1966	2
200 mm (7.87 in): Days with 200 mm or more rain	7	4	2002	4

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1961.

Download the Data

Data for Futenma 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).

Futenma Threshold Days by Year (JAW00042215)

Key Facts for Futenma Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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