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

Puu Oo Threshold Days by Year

5 fixed thresholds counted per year at Puu Oo (USC00518550): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Puu Oo Thresholds

  • Puu Oo: days with 10 mm (0.39 in) or more of precipitation in 6 years, most in 1914 with 79.
  • Puu Oo: days with 25 mm (0.98 in) or more of precipitation in 6 years, most in 1914 with 30.
  • Puu Oo: days with 50 mm (1.97 in) or more of precipitation in 6 years, most in 1913 with 17.
  • Puu Oo: days with 100 mm (3.94 in) or more of precipitation in 5 years, most in 1914 with 6.
  • 5 fixed thresholds have at least one qualifying day at Puu Oo.
6 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Puu Oo Days per year at Puu Oo with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 79 in 1914. 0204060801912: 571913: 531914: 791967: 671968: 591970: 55191219131914196719681970
Days per year at Puu Oo with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 79 in 1914.
Days with 10 mm (0.39 in) or more of precipitation per year at Puu Oo
YearDaysDecade average
19125763
19135363
19147963
19676763
19685963
19705555
First to last qualifying date each year at Puu Oo For each year, a bar from the first to the last day at Puu Oo meeting 10 mm (0.39 in). 1912: 13 February 1912 to 26 December 19121913: 2 January 1913 to 17 December 19131914: 8 January 1914 to 25 December 19141967: 1 January 1967 to 31 December 19671968: 4 January 1968 to 28 December 19681970: 7 January 1970 to 28 December 1970191219131914196719681970JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Puu Oo meeting 10 mm (0.39 in).
First to last qualifying date each year at Puu Oo
YearFirst dateLast date
19121912-02-131912-12-26
19131913-01-021913-12-17
19141914-01-081914-12-25
19671967-01-011967-12-31
19681968-01-041968-12-28
19701970-01-071970-12-28

Every Fixed Threshold

Fixed thresholds at Puu Oo
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain679191455
25 mm (0.98 in): Days with 25 mm or more rain630191424
50 mm (1.97 in): Days with 50 mm or more rain61719138
100 mm (3.94 in): Days with 100 mm or more rain5619142
200 mm (7.87 in): Days with 200 mm or more rain4219141

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.

Download the Data

  • Data for Puu Oo 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).