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

Keonelele Pens 551 Threshold Days by Year

4 fixed thresholds counted per year at Keonelele Pens 551 (USC00514394): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Keonelele Pens 551 Thresholds

  • Keonelele Pens 551: days with 10 mm (0.39 in) or more of precipitation in 8 years, most in 1968 with 21.
  • Keonelele Pens 551: days with 25 mm (0.98 in) or more of precipitation in 8 years, most in 1968 with 13.
  • Keonelele Pens 551: days with 50 mm (1.97 in) or more of precipitation in 8 years, most in 1968 with 7.
  • Keonelele Pens 551: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1968 with 1.
  • 4 fixed thresholds have at least one qualifying day at Keonelele Pens 551.
8 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Keonelele Pens 551 Days per year at Keonelele Pens 551 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 21 in 1968. 01020301968: 211969: 91970: 101971: 111974: 111976: 131978: 91984: 519681969197019711974197619781984
Days per year at Keonelele Pens 551 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 21 in 1968.
Days with 10 mm (0.39 in) or more of precipitation per year at Keonelele Pens 551
YearDaysDecade average
19682115
1969915
19701010.8
19711110.8
19741110.8
19761310.8
1978910.8
198455
First to last qualifying date each year at Keonelele Pens 551 For each year, a bar from the first to the last day at Keonelele Pens 551 meeting 10 mm (0.39 in). 1968: 2 January 1968 to 31 December 19681969: 6 January 1969 to 29 December 19691970: 6 January 1970 to 30 November 19701971: 6 January 1971 to 31 December 19711974: 14 March 1974 to 21 December 19741976: 1 February 1976 to 20 November 19761978: 2 March 1978 to 29 October 19781984: 19 February 1984 to 31 December 198419681969197019711974197619781984JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Keonelele Pens 551 meeting 10 mm (0.39 in).
First to last qualifying date each year at Keonelele Pens 551
YearFirst dateLast date
19681968-01-021968-12-31
19691969-01-061969-12-29
19701970-01-061970-11-30
19711971-01-061971-12-31
19741974-03-141974-12-21
19761976-02-011976-11-20
19781978-03-021978-10-29
19841984-02-191984-12-31

Every Fixed Threshold

Fixed thresholds at Keonelele Pens 551
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain82119685
25 mm (0.98 in): Days with 25 mm or more rain81319684
50 mm (1.97 in): Days with 50 mm or more rain8719682
100 mm (3.94 in): Days with 100 mm or more rain3119681

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1968.

Download the Data

  • Data for Keonelele Pens 551 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

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