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

Wailuku 386 Threshold Days by Year

9 fixed thresholds counted per year at Wailuku 386 (USC00519484): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Wailuku 386 Thresholds

  • Wailuku 386: days with 10 mm (0.39 in) or more of precipitation in 27 years, most in 1986 with 36.
  • Wailuku 386: days with 25 mm (0.98 in) or more of precipitation in 27 years, most in 1950 with 16.
  • Wailuku 386: days with 50 mm (1.97 in) or more of precipitation in 23 years, most in 1989 with 7.
  • Wailuku 386: days with a maximum temperature at or above 30 C (86 F) in 14 years, most in 1968 with 167.
  • 9 fixed thresholds have at least one qualifying day at Wailuku 386.
14 years with a qualifying day
Days at or above 30 C (86 F) per year at Wailuku 386 Days per year at Wailuku 386 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 167 in 1968. 0501001502001950: 141951: 291952: 101953: 91954: 281955: 11956: 101957: 341958: 211959: 501960: 611963: 341965: 471968: 1671950195219541956195819601965
Days per year at Wailuku 386 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 167 in 1968.
Days at or above 30 C (86 F) per year at Wailuku 386
YearDaysDecade average
19501420.6
19512920.6
19521020.6
1953920.6
19542820.6
1955120.6
19561020.6
19573420.6
19582120.6
19595020.6
19606177.3
19633477.3
19654777.3
196816777.3
First to last qualifying date each year at Wailuku 386 For each year, a bar from the first to the last day at Wailuku 386 meeting 30 C (86 F). 1950: 22 January 1950 to 3 November 19501951: 21 June 1951 to 28 October 19511952: 15 July 1952 to 16 October 19521953: 30 May 1953 to 20 October 19531954: 4 February 1954 to 27 November 19541955: 7 November 1955 to 7 November 19551956: 15 July 1956 to 9 December 19561957: 5 June 1957 to 2 December 19571958: 10 February 1958 to 12 November 19581959: 19 May 1959 to 20 November 19591960: 3 February 1960 to 2 November 19601963: 29 March 1963 to 22 December 19631965: 13 April 1965 to 31 December 19651968: 2 March 1968 to 10 December 19681950195219541956195819601965JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Wailuku 386 meeting 30 C (86 F).
First to last qualifying date each year at Wailuku 386
YearFirst dateLast date
19501950-01-221950-11-03
19511951-06-211951-10-28
19521952-07-151952-10-16
19531953-05-301953-10-20
19541954-02-041954-11-27
19551955-11-071955-11-07
19561956-07-151956-12-09
19571957-06-051957-12-02
19581958-02-101958-11-12
19591959-05-191959-11-20
19601960-02-031960-11-02
19631963-03-291963-12-22
19651965-04-131965-12-31
19681968-03-021968-12-10

Every Fixed Threshold

Fixed thresholds at Wailuku 386
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days141671968167
90 F (32.2 C): Days819196819
20 C (68 F): Tropical nights (min142491968249
25 C (77 F): Days with min1119651
10 mm (0.39 in): Days with 10 mm or more rain2736198615
25 mm (0.98 in): Days with 25 mm or more rain271619507
50 mm (1.97 in): Days with 50 mm or more rain23719891
100 mm (3.94 in): Days with 100 mm or more rain12319891
200 mm (7.87 in): Days with 200 mm or more rain1119551

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.

Download the Data

  • Data for Wailuku 386 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

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