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Data as of 2025-12-31
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Built 2026-10-17 (17 October 2026)

Hanahuli 281 Threshold Days by Year

5 fixed thresholds counted per year at Hanahuli 281 (USC00511148): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hanahuli 281 Thresholds

  • Hanahuli 281: days with 10 mm (0.39 in) or more of precipitation in 26 years, most in 1969 with 75.
  • Hanahuli 281: days with 25 mm (0.98 in) or more of precipitation in 26 years, most in 1968 with 30.
  • Hanahuli 281: days with 50 mm (1.97 in) or more of precipitation in 26 years, most in 1968 with 12.
  • Hanahuli 281: days with 100 mm (3.94 in) or more of precipitation in 16 years, most in 1955 with 3.
  • 5 fixed thresholds have at least one qualifying day at Hanahuli 281.
26 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Hanahuli 281 Days per year at Hanahuli 281 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 75 in 1969. 0204060801949: 311950: 481951: 501952: 501953: 351954: 561955: 451956: 521957: 431958: 431959: 481960: 591961: 581963: 371964: 711965: 731966: 461967: 631968: 701969: 751970: 421971: 411972: 411973: 481974: 541975: 36194919521955195819611965196819711974
Days per year at Hanahuli 281 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 75 in 1969.
Days with 10 mm (0.39 in) or more of precipitation per year at Hanahuli 281
YearDaysDecade average
19493131
19504847
19515047
19525047
19533547
19545647
19554547
19565247
19574347
19584347
19594847
19605961.3
19615861.3
19633761.3
19647161.3
19657361.3
19664661.3
19676361.3
19687061.3
19697561.3
19704243.7
19714143.7
19724143.7
19734843.7
19745443.7
19753643.7
First to last qualifying date each year at Hanahuli 281 For each year, a bar from the first to the last day at Hanahuli 281 meeting 10 mm (0.39 in). 1949: 2 January 1949 to 26 December 19491950: 5 January 1950 to 7 December 19501951: 16 January 1951 to 31 December 19511952: 9 January 1952 to 7 December 19521953: 7 January 1953 to 28 December 19531954: 8 January 1954 to 31 December 19541955: 2 January 1955 to 21 December 19551956: 12 January 1956 to 16 December 19561957: 20 January 1957 to 7 December 19571958: 29 January 1958 to 29 December 19581959: 7 January 1959 to 30 December 19591960: 4 January 1960 to 30 December 19601961: 1 January 1961 to 14 December 19611963: 8 January 1963 to 30 December 19631964: 2 January 1964 to 25 December 19641965: 2 January 1965 to 24 December 19651966: 2 January 1966 to 31 December 19661967: 4 January 1967 to 27 December 19671968: 3 January 1968 to 26 December 19681969: 3 January 1969 to 27 December 19691970: 4 January 1970 to 19 December 19701971: 5 January 1971 to 30 December 19711972: 9 January 1972 to 25 December 19721973: 1 January 1973 to 30 December 19731974: 7 January 1974 to 27 December 19741975: 7 January 1975 to 5 December 19751949195319571961196619701974JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Hanahuli 281 meeting 10 mm (0.39 in).
First to last qualifying date each year at Hanahuli 281
YearFirst dateLast date
19491949-01-021949-12-26
19501950-01-051950-12-07
19511951-01-161951-12-31
19521952-01-091952-12-07
19531953-01-071953-12-28
19541954-01-081954-12-31
19551955-01-021955-12-21
19561956-01-121956-12-16
19571957-01-201957-12-07
19581958-01-291958-12-29
19591959-01-071959-12-30
19601960-01-041960-12-30
19611961-01-011961-12-14
19631963-01-081963-12-30
19641964-01-021964-12-25
19651965-01-021965-12-24
19661966-01-021966-12-31
19671967-01-041967-12-27
19681968-01-031968-12-26
19691969-01-031969-12-27
19701970-01-041970-12-19
19711971-01-051971-12-30
19721972-01-091972-12-25
19731973-01-011973-12-30
19741974-01-071974-12-27
19751975-01-071975-12-05

Every Fixed Threshold

Fixed thresholds at Hanahuli 281
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2675196936
25 mm (0.98 in): Days with 25 mm or more rain263019687
50 mm (1.97 in): Days with 50 mm or more rain261219683
100 mm (3.94 in): Days with 100 mm or more rain16319551
200 mm (7.87 in): Days with 200 mm or more rain3219651

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

  • Data for Hanahuli 281 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).