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Built 2026-10-17 (17 October 2026)

Ahuimanu Loop 839.12 Threshold Days by Year

9 fixed thresholds counted per year at Ahuimanu Loop 839.12 (USC00510055): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ahuimanu Loop 839.12 Thresholds

  • Ahuimanu Loop 839.12: days with a maximum temperature at or above 30 C (86 F) in 5 years, most in 1907 with 59.
  • Ahuimanu Loop 839.12: nights with a minimum temperature at or above 20 C (68 F) in 5 years, most in 1906 with 202.
  • Ahuimanu Loop 839.12: days with 10 mm (0.39 in) or more of precipitation in 4 years, most in 1905 with 55.
  • Ahuimanu Loop 839.12: days with 25 mm (0.98 in) or more of precipitation in 4 years, most in 1905 with 19.
  • 9 fixed thresholds have at least one qualifying day at Ahuimanu Loop 839.12.
5 years with a qualifying day
Days at or above 30 C (86 F) per year at Ahuimanu Loop 839.12 Days per year at Ahuimanu Loop 839.12 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 59 in 1907. 02040601905: 191906: 331907: 591908: 311913: 1719051906190719081913
Days per year at Ahuimanu Loop 839.12 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 59 in 1907.
Days at or above 30 C (86 F) per year at Ahuimanu Loop 839.12
YearDaysDecade average
19051935.5
19063335.5
19075935.5
19083135.5
19131717
First to last qualifying date each year at Ahuimanu Loop 839.12 For each year, a bar from the first to the last day at Ahuimanu Loop 839.12 meeting 30 C (86 F). 1905: 23 February 1905 to 1 October 19051906: 13 April 1906 to 13 November 19061907: 4 May 1907 to 28 November 19071908: 12 January 1908 to 7 November 19081913: 29 July 1913 to 19 October 191319051906190719081913JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ahuimanu Loop 839.12 meeting 30 C (86 F).
First to last qualifying date each year at Ahuimanu Loop 839.12
YearFirst dateLast date
19051905-02-231905-10-01
19061906-04-131906-11-13
19071907-05-041907-11-28
19081908-01-121908-11-07
19131913-07-291913-10-19

Every Fixed Threshold

Fixed thresholds at Ahuimanu Loop 839.12
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days559190717
35 C (95 F): Days1119081
90 F (32.2 C): Days2419072
20 C (68 F): Tropical nights (min52021906120
25 C (77 F): Days with min1219132
10 mm (0.39 in): Days with 10 mm or more rain455190513
25 mm (0.98 in): Days with 25 mm or more rain41919054
50 mm (1.97 in): Days with 50 mm or more rain3619054
100 mm (3.94 in): Days with 100 mm or more rain3319061

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1905.

Download the Data

  • Data for Ahuimanu Loop 839.12 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).