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

Mt Waialeale 1047 Threshold Days by Year

5 fixed thresholds counted per year at Mt Waialeale 1047 (USC00516565): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mt Waialeale 1047 Thresholds

  • Mt Waialeale 1047: days with 10 mm (0.39 in) or more of precipitation in 5 years, most in 1999 with 234.
  • Mt Waialeale 1047: days with 25 mm (0.98 in) or more of precipitation in 5 years, most in 1998 with 128.
  • Mt Waialeale 1047: days with 50 mm (1.97 in) or more of precipitation in 5 years, most in 1951 with 57.
  • Mt Waialeale 1047: days with 100 mm (3.94 in) or more of precipitation in 5 years, most in 1951 with 22.
  • 5 fixed thresholds have at least one qualifying day at Mt Waialeale 1047.
5 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Mt Waialeale 1047 Days per year at Mt Waialeale 1047 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 234 in 1999. 01002003001951: 1991998: 1891999: 2342000: 1712003: 19119511998199920002003
Days per year at Mt Waialeale 1047 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 234 in 1999.
Days with 10 mm (0.39 in) or more of precipitation per year at Mt Waialeale 1047
YearDaysDecade average
1951199199
1998189211.5
1999234211.5
2000171181
2003191181
First to last qualifying date each year at Mt Waialeale 1047 For each year, a bar from the first to the last day at Mt Waialeale 1047 meeting 10 mm (0.39 in). 1951: 1 January 1951 to 30 December 19511998: 3 January 1998 to 30 December 19981999: 7 January 1999 to 26 December 19992000: 5 January 2000 to 22 December 20002003: 4 January 2003 to 31 December 200319511998199920002003JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Mt Waialeale 1047 meeting 10 mm (0.39 in).
First to last qualifying date each year at Mt Waialeale 1047
YearFirst dateLast date
19511951-01-011951-12-30
19981998-01-031998-12-30
19991999-01-071999-12-26
20002000-01-052000-12-22
20032003-01-042003-12-31

Every Fixed Threshold

Fixed thresholds at Mt Waialeale 1047
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain52341999191
25 mm (0.98 in): Days with 25 mm or more rain5128199896
50 mm (1.97 in): Days with 50 mm or more rain557195139
100 mm (3.94 in): Days with 100 mm or more rain522195114
200 mm (7.87 in): Days with 200 mm or more rain2319511

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1951.

Download the Data

  • Data for Mt Waialeale 1047 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).