Naha Threshold Days by Year (JA000047936)

10 fixed thresholds counted per year at Naha (JA000047936): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Naha Thresholds

Naha: days with 10 mm (0.39 in) or more of precipitation in 62 years, most in 1978 with 76.
Naha: days with 25 mm (0.98 in) or more of precipitation in 62 years, most in 1998 with 43.
Naha: days with 50 mm (1.97 in) or more of precipitation in 62 years, most in 1966 with 19.
Naha: days with 100 mm (3.94 in) or more of precipitation in 59 years, most in 1966 with 6.
10 fixed thresholds have at least one qualifying day at Naha.

Days at or above 30 C (86 F)

57 years with a qualifying day

Days per year at Naha with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 136 in 2025.

Days at or above 30 C (86 F) per year at Naha
Year	Days	Decade average
1961	94	83.4
1962	98	83.4
1963	104	83.4
1964	82	83.4
1965	67	83.4
1966	66	83.4
1967	78	83.4
1968	76	83.4
1969	86	83.4
1970	95	71.2
1971	110	71.2
1972	75	71.2
1973	57	71.2
1974	46	71.2
1975	71	71.2
1976	46	71.2
1977	76	71.2
1978	59	71.2
1979	77	71.2
1980	102	89.3
1981	80	89.3
1982	65	89.3
1983	100	89.3
1984	97	89.3
1985	78	89.3
1986	90	89.3
1987	89	89.3
1988	99	89.3
1989	93	89.3
1990	96	97.3
1991	118	97.3
1992	79	97.3
1993	101	97.3
1994	92	97.3
1995	96	97.3
1996	99	97.3
1997	73	97.3
1998	117	97.3
1999	102	97.3
2000	77	100.4
2001	99	100.4
2002	86	100.4
2003	98	100.4
2004	99	100.4
2005	108	100.4
2006	95	100.4
2007	109	100.4
2008	124	100.4
2009	109	100.4
2010	97	103.7
2011	105	103.7
2012	83	103.7
2016	123	103.7
2017	111	103.7
2018	103	103.7
2025	136	112
2026	88	112

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

First to last qualifying date each year at Naha
Year	First date	Last date
1961	1961-06-04	1961-10-05
1962	1962-06-04	1962-10-13
1963	1963-05-14	1963-09-22
1964	1964-06-22	1964-10-16
1965	1965-06-18	1965-09-07
1966	1966-06-21	1966-09-17
1967	1967-06-21	1967-09-11
1968	1968-06-25	1968-10-07
1969	1969-06-30	1969-10-03
1970	1970-05-28	1970-10-14
1971	1971-05-27	1971-10-10
1972	1972-05-07	1972-09-15
1973	1973-06-21	1973-10-13
1974	1974-06-11	1974-09-27
1975	1975-06-17	1975-10-12
1976	1976-06-07	1976-09-08
1977	1977-06-12	1977-09-27
1978	1978-06-10	1978-10-11
1979	1979-06-20	1979-09-25
1980	1980-05-14	1980-10-19
1981	1981-06-13	1981-10-13
1982	1982-05-12	1982-09-20
1983	1983-06-18	1983-10-21
1984	1984-06-06	1984-10-03
1985	1985-06-20	1985-10-11
1986	1986-06-16	1986-09-20
1987	1987-05-24	1987-11-02
1988	1988-06-07	1988-10-01
1989	1989-05-21	1989-10-06
1990	1990-06-14	1990-10-03
1991	1991-05-15	1991-10-01
1992	1992-06-23	1992-10-04
1993	1993-05-21	1993-10-17
1994	1994-06-08	1994-10-16
1995	1995-05-30	1995-10-21
1996	1996-06-07	1996-09-26
1997	1997-06-07	1997-09-14
1998	1998-05-08	1998-10-30
1999	1999-06-05	1999-10-16
2000	2000-06-02	2000-10-28
2001	2001-06-05	2001-09-30
2002	2002-05-08	2002-10-06
2003	2003-06-12	2003-10-01
2004	2004-05-11	2004-09-23
2005	2005-06-11	2005-10-28
2006	2006-05-12	2006-10-21
2007	2007-05-27	2007-10-25
2008	2008-05-24	2008-11-08
2009	2009-05-21	2009-10-06
2010	2010-05-22	2010-10-24
2011	2011-05-08	2011-10-20
2012	2012-06-02	2012-09-22
2016	2016-05-08	2016-10-28
2017	2017-06-10	2017-10-20
2018	2018-05-15	2018-09-27
2025	2025-05-16	2025-10-24
2026	2026-05-26	2026-10-09

Every Fixed Threshold

Fixed thresholds at Naha
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	57	136	2025	88
35 C (95 F): Days	4	2	2017	2
90 F (32.2 C): Days	53	66	2017	18
20 C (68 F): Tropical nights (min	42	243	1998	188
25 C (77 F): Days with min	42	143	2025	123
10 mm (0.39 in): Days with 10 mm or more rain	62	76	1978	26
25 mm (0.98 in): Days with 25 mm or more rain	62	43	1998	22
50 mm (1.97 in): Days with 50 mm or more rain	62	19	1966	15
100 mm (3.94 in): Days with 100 mm or more rain	59	6	1966	7
200 mm (7.87 in): Days with 200 mm or more rain	22	1	1961	3

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 Naha 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).

Naha Threshold Days by Year (JA000047936)

Key Facts for Naha Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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