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

Haleakala Summit 338 Threshold Days by Year

6 fixed thresholds counted per year at Haleakala Summit 338 (USC00511008): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Haleakala Summit 338 Thresholds

  • Haleakala Summit 338: nights with a minimum temperature at or below 0 C (32 F) in 6 years, most in 1965 with 52.
  • Haleakala Summit 338: days with 10 mm (0.39 in) or more of precipitation in 6 years, most in 1968 with 50.
  • Haleakala Summit 338: days with 25 mm (0.98 in) or more of precipitation in 5 years, most in 1963 with 19.
  • Haleakala Summit 338: days with 50 mm (1.97 in) or more of precipitation in 5 years, most in 1963 with 7.
  • 6 fixed thresholds have at least one qualifying day at Haleakala Summit 338.
6 years with a qualifying day
Nights at or below 0 C (32 F) per year at Haleakala Summit 338 Days per year at Haleakala Summit 338 with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 52 in 1965. 02040601963: 231964: 411965: 521967: 301968: 121972: 16196319641965196719681972
Days per year at Haleakala Summit 338 with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 52 in 1965.
Nights at or below 0 C (32 F) per year at Haleakala Summit 338
YearDaysDecade average
19632331.6
19644131.6
19655231.6
19673031.6
19681231.6
19721616
First to last qualifying date each year at Haleakala Summit 338 For each year, a bar from the first to the last day at Haleakala Summit 338 meeting 0 C (32 F). 1963: 7 January 1963 to 17 July 19631964: 5 January 1964 to 19 December 19641965: 15 January 1965 to 19 December 19651967: 8 January 1967 to 30 December 19671968: 6 February 1968 to 30 December 19681972: 7 January 1972 to 12 December 1972196319641965196719681972JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Haleakala Summit 338 meeting 0 C (32 F).
First to last qualifying date each year at Haleakala Summit 338
YearFirst dateLast date
19631963-01-071963-07-17
19641964-01-051964-12-19
19651965-01-151965-12-19
19671967-01-081967-12-30
19681968-02-061968-12-30
19721972-01-071972-12-12

Every Fixed Threshold

Fixed thresholds at Haleakala Summit 338
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Ice days (max1119671
0 C (32 F): Frost days (min652196516
10 mm (0.39 in): Days with 10 mm or more rain65019681
25 mm (0.98 in): Days with 25 mm or more rain519196319
50 mm (1.97 in): Days with 50 mm or more rain5719635
100 mm (3.94 in): Days with 100 mm or more rain3219631

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1967.

Download the Data

  • Data for Haleakala Summit 338 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).