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

Kipahulu 258 Threshold Days by Year

8 fixed thresholds counted per year at Kipahulu 258 (USC00514634): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Kipahulu 258 Thresholds

  • Kipahulu 258: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 1948 with 131.
  • Kipahulu 258: days with 25 mm (0.98 in) or more of precipitation in 42 years, most in 1948 with 58.
  • Kipahulu 258: days with 50 mm (1.97 in) or more of precipitation in 42 years, most in 1948 with 23.
  • Kipahulu 258: days with 100 mm (3.94 in) or more of precipitation in 21 years, most in 1948 with 5.
  • 8 fixed thresholds have at least one qualifying day at Kipahulu 258.
7 years with a qualifying day
Days at or above 30 C (86 F) per year at Kipahulu 258 Days per year at Kipahulu 258 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 306 in 1928. 01002003004001917: 11918: 11919: 41920: 21925: 1861926: 2451928: 3061917191819191920192519261928
Days per year at Kipahulu 258 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 306 in 1928.
Days at or above 30 C (86 F) per year at Kipahulu 258
YearDaysDecade average
191712
191812
191942
19202184.8
1925186184.8
1926245184.8
1928306184.8
First to last qualifying date each year at Kipahulu 258 For each year, a bar from the first to the last day at Kipahulu 258 meeting 30 C (86 F). 1917: 22 September 1917 to 22 September 19171918: 28 August 1918 to 28 August 19181919: 30 August 1919 to 25 September 19191920: 11 July 1920 to 12 July 19201925: 1 February 1925 to 18 December 19251926: 3 January 1926 to 30 November 19261928: 24 February 1928 to 31 December 19281917191819191920192519261928JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Kipahulu 258 meeting 30 C (86 F).
First to last qualifying date each year at Kipahulu 258
YearFirst dateLast date
19171917-09-221917-09-22
19181918-08-281918-08-28
19191919-08-301919-09-25
19201920-07-111920-07-12
19251925-02-011925-12-18
19261926-01-031926-11-30
19281928-02-241928-12-31

Every Fixed Threshold

Fixed thresholds at Kipahulu 258
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days73061928306
90 F (32.2 C): Days129192529
20 C (68 F): Tropical nights (min7221191910
10 mm (0.39 in): Days with 10 mm or more rain43131194860
25 mm (0.98 in): Days with 25 mm or more rain4258194810
50 mm (1.97 in): Days with 50 mm or more rain422319482
100 mm (3.94 in): Days with 100 mm or more rain21519481
200 mm (7.87 in): Days with 200 mm or more rain5219371

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1917.

Download the Data

  • Data for Kipahulu 258 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).