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Built 2026-10-19 (19 October 2026)

Ono-I-Lau Threshold Days by Year (FJM00091699)

9 fixed thresholds counted per year at Ono-I-Lau (FJM00091699): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ono-I-Lau Thresholds

  • Ono-I-Lau: days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 2022 with 58.
  • Ono-I-Lau: days with 25 mm (0.98 in) or more of precipitation in 36 years, most in 1988 with 27.
  • Ono-I-Lau: days with 50 mm (1.97 in) or more of precipitation in 36 years, most in 2019 with 11.
  • Ono-I-Lau: days with 100 mm (3.94 in) or more of precipitation in 29 years, most in 2019 with 5.
  • 9 fixed thresholds have at least one qualifying day at Ono-I-Lau.
37 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Ono-I-Lau Days per year at Ono-I-Lau with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 58 in 2022. 02040601980: 331981: 391982: 521983: 311984: 381985: 291986: 411987: 171988: 451989: 531990: 531991: 251992: 231993: 351995: 381996: 321997: 381998: 282001: 412002: 412003: 302004: 472005: 332006: 552007: 572008: 552012: 552013: 482014: 292015: 292016: 342017: 442019: 372020: 452021: 322022: 582026: 21980198419881992199720032007201420192026
Days per year at Ono-I-Lau with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 58 in 2022.
Days with 10 mm (0.39 in) or more of precipitation per year at Ono-I-Lau
YearDaysDecade average
19803337.8
19813937.8
19825237.8
19833137.8
19843837.8
19852937.8
19864137.8
19871737.8
19884537.8
19895337.8
19905334
19912534
19922334
19933534
19953834
19963234
19973834
19982834
20014144.9
20024144.9
20033044.9
20044744.9
20053344.9
20065544.9
20075744.9
20085544.9
20125539.4
20134839.4
20142939.4
20152939.4
20163439.4
20174439.4
20193739.4
20204534.3
20213234.3
20225834.3
2026234.3
First to last qualifying date each year at Ono-I-Lau For each year, a bar from the first to the last day at Ono-I-Lau meeting 10 mm (0.39 in). 1980: 1 January 1980 to 24 December 19801981: 1 January 1981 to 18 December 19811982: 7 January 1982 to 28 December 19821983: 3 January 1983 to 21 December 19831984: 11 January 1984 to 18 December 19841985: 17 January 1985 to 16 December 19851986: 10 February 1986 to 30 December 19861987: 17 February 1987 to 4 December 19871988: 10 January 1988 to 26 December 19881989: 15 January 1989 to 4 December 19891990: 1 January 1990 to 29 December 19901991: 8 January 1991 to 27 December 19911992: 11 February 1992 to 17 December 19921993: 3 January 1993 to 28 December 19931995: 1 January 1995 to 31 December 19951996: 3 January 1996 to 27 December 19961997: 1 January 1997 to 13 December 19971998: 5 January 1998 to 31 December 19982001: 13 January 2001 to 25 December 20012002: 12 January 2002 to 20 November 20022003: 1 January 2003 to 24 November 20032004: 26 January 2004 to 12 December 20042005: 30 January 2005 to 14 December 20052006: 6 January 2006 to 19 December 20062007: 12 January 2007 to 23 December 20072008: 2 January 2008 to 21 December 20082012: 17 January 2012 to 26 December 20122013: 13 January 2013 to 31 December 20132014: 1 January 2014 to 20 November 20142015: 6 January 2015 to 20 November 20152016: 3 January 2016 to 20 December 20162017: 2 January 2017 to 23 December 20172019: 7 January 2019 to 29 December 20192020: 16 January 2020 to 31 December 20202021: 2 January 2021 to 5 December 20212022: 12 January 2022 to 31 December 20222026: 28 August 2026 to 7 September 202619801985199019962003200820162022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ono-I-Lau meeting 10 mm (0.39 in).
First to last qualifying date each year at Ono-I-Lau
YearFirst dateLast date
19801980-01-011980-12-24
19811981-01-011981-12-18
19821982-01-071982-12-28
19831983-01-031983-12-21
19841984-01-111984-12-18
19851985-01-171985-12-16
19861986-02-101986-12-30
19871987-02-171987-12-04
19881988-01-101988-12-26
19891989-01-151989-12-04
19901990-01-011990-12-29
19911991-01-081991-12-27
19921992-02-111992-12-17
19931993-01-031993-12-28
19951995-01-011995-12-31
19961996-01-031996-12-27
19971997-01-011997-12-13
19981998-01-051998-12-31
20012001-01-132001-12-25
20022002-01-122002-11-20
20032003-01-012003-11-24
20042004-01-262004-12-12
20052005-01-302005-12-14
20062006-01-062006-12-19
20072007-01-122007-12-23
20082008-01-022008-12-21
20122012-01-172012-12-26
20132013-01-132013-12-31
20142014-01-012014-11-20
20152015-01-062015-11-20
20162016-01-032016-12-20
20172017-01-022017-12-23
20192019-01-072019-12-29
20202020-01-162020-12-31
20212021-01-022021-12-05
20222022-01-122022-12-31
20262026-08-282026-09-07

Every Fixed Threshold

Fixed thresholds at Ono-I-Lau
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days22112013127
35 C (95 F): Days21220133
90 F (32.2 C): Days297201347
20 C (68 F): Tropical nights (min10n/a82
10 mm (0.39 in): Days with 10 mm or more rain375820222
25 mm (0.98 in): Days with 25 mm or more rain3627198827
50 mm (1.97 in): Days with 50 mm or more rain3611201911
100 mm (3.94 in): Days with 100 mm or more rain29520194
200 mm (7.87 in): Days with 200 mm or more rain4119831

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2013.

Download the Data

  • Data for Ono-I-Lau 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 . Last revised (2026-10-12).