Chuuk WSO AP Threshold Days by Year (FMW00040505)

10 fixed thresholds counted per year at Chuuk WSO AP (FMW00040505): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chuuk WSO AP Thresholds

Chuuk WSO AP: days with a maximum temperature at or above 30 C (86 F) in 75 years, most in 1998 with 352.
Chuuk WSO AP: nights with a minimum temperature at or above 20 C (68 F) in 75 years, most in 1952 with 366.
Chuuk WSO AP: nights with a minimum temperature at or above 25 C (77 F) in 75 years, most in 2017 with 333.
Chuuk WSO AP: days with 10 mm (0.39 in) or more of precipitation in 75 years, most in 2011 with 131.
10 fixed thresholds have at least one qualifying day at Chuuk WSO AP.

Days at or above 30 C (86 F)

75 years with a qualifying day

Days per year at Chuuk WSO AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 352 in 1998.

Days at or above 30 C (86 F) per year at Chuuk WSO AP
Year	Days	Decade average
1952	228	228.1
1953	223	228.1
1954	212	228.1
1955	186	228.1
1956	193	228.1
1957	230	228.1
1958	272	228.1
1959	281	228.1
1960	279	251.6
1961	268	251.6
1962	242	251.6
1963	258	251.6
1964	249	251.6
1965	177	251.6
1966	243	251.6
1967	273	251.6
1968	259	251.6
1969	268	251.6
1970	302	287.9
1971	272	287.9
1972	226	287.9
1973	288	287.9
1974	311	287.9
1975	288	287.9
1976	260	287.9
1977	307	287.9
1978	319	287.9
1979	306	287.9
1980	299	316.4
1981	324	316.4
1982	324	316.4
1983	313	316.4
1984	328	316.4
1985	310	316.4
1986	304	316.4
1987	312	316.4
1988	336	316.4
1989	314	316.4
1990	308	311.9
1991	300	311.9
1992	301	311.9
1993	270	311.9
1994	304	311.9
1995	320	311.9
1996	328	311.9
1997	313	311.9
1998	352	311.9
1999	323	311.9
2000	318	285.6
2001	301	285.6
2002	260	285.6
2003	244	285.6
2004	285	285.6
2005	267	285.6
2006	277	285.6
2007	287	285.6
2008	312	285.6
2009	305	285.6
2010	311	305.7
2011	307	305.7
2012	311	305.7
2013	298	305.7
2014	315	305.7
2015	298	305.7
2016	323	305.7
2017	317	305.7
2018	303	305.7
2019	274	305.7
2020	297	282.9
2021	281	282.9
2022	273	282.9
2023	295	282.9
2024	292	282.9
2025	312	282.9
2026	230	282.9

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

First to last qualifying date each year at Chuuk WSO AP
Year	First date	Last date
1952	1952-01-04	1952-12-31
1953	1953-01-01	1953-12-31
1954	1954-01-01	1954-12-24
1955	1955-01-06	1955-12-29
1956	1956-01-01	1956-12-27
1957	1957-01-02	1957-12-31
1958	1958-01-01	1958-12-31
1959	1959-01-02	1959-12-29
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	1963-12-30
1964	1964-01-07	1964-12-30
1965	1965-01-01	1965-12-24
1966	1966-02-01	1966-12-30
1967	1967-01-01	1967-12-30
1968	1968-01-05	1968-12-31
1969	1969-01-02	1969-12-31
1970	1970-01-07	1970-12-31
1971	1971-01-01	1971-12-30
1972	1972-01-01	1972-12-24
1973	1973-01-04	1973-12-31
1974	1974-01-01	1974-12-31
1975	1975-01-01	1975-12-31
1976	1976-01-03	1976-12-30
1977	1977-01-04	1977-12-31
1978	1978-01-01	1978-12-31
1979	1979-01-01	1979-12-31
1980	1980-01-03	1980-12-30
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	1984-12-30
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
1990	1990-01-01	1990-12-31
1991	1991-01-01	1991-12-31
1992	1992-01-01	1992-12-29
1993	1993-01-02	1993-12-31
1994	1994-01-01	1994-12-31
1995	1995-01-01	1995-12-31
1996	1996-01-01	1996-12-31
1997	1997-01-01	1997-12-31
1998	1998-01-01	1998-12-31
1999	1999-01-01	1999-12-30
2000	2000-01-01	2000-12-31
2001	2001-01-01	2001-12-31
2002	2002-01-01	2002-12-31
2003	2003-01-01	2003-12-31
2004	2004-01-01	2004-12-31
2005	2005-01-02	2005-12-31
2006	2006-01-01	2006-12-31
2007	2007-01-01	2007-12-31
2008	2008-01-01	2008-12-31
2009	2009-01-01	2009-12-31
2010	2010-01-01	2010-12-31
2011	2011-01-01	2011-12-31
2012	2012-01-01	2012-12-31
2013	2013-01-01	2013-12-31
2014	2014-01-01	2014-12-31
2015	2015-01-01	2015-12-30
2016	2016-01-01	2016-12-31
2017	2017-01-01	2017-12-31
2018	2018-01-01	2018-12-31
2019	2019-01-01	2019-12-27
2020	2020-01-05	2020-12-28
2021	2021-01-02	2021-12-31
2022	2022-01-01	2022-12-30
2023	2023-01-02	2023-12-31
2024	2024-01-01	2024-12-31
2025	2025-01-01	2025-12-31
2026	2026-01-01	2026-10-13

Every Fixed Threshold

Fixed thresholds at Chuuk WSO AP
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	75	352	1998	230
35 C (95 F): Days	2	2	2010	2
90 F (32.2 C): Days	67	97	1998	32
20 C (68 F): Tropical nights (min	75	366	1952	286
25 C (77 F): Days with min	75	333	2017	255
10 mm (0.39 in): Days with 10 mm or more rain	75	131	2011	93
25 mm (0.98 in): Days with 25 mm or more rain	75	62	1955	46
50 mm (1.97 in): Days with 50 mm or more rain	75	23	1979	16
100 mm (3.94 in): Days with 100 mm or more rain	66	5	1979	2
200 mm (7.87 in): Days with 200 mm or more rain	8	2	1962	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.

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Data for Chuuk WSO AP 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).

Chuuk WSO AP Threshold Days by Year (FMW00040505)

Key Facts for Chuuk WSO AP Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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