Built 2026-10-19 (19 October 2026)

Alakahi Upper Threshold Days by Year (USC00510137)

5 fixed thresholds counted per year at Alakahi Upper (USC00510137): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Alakahi Upper Thresholds

  • Alakahi Upper: days with 10 mm (0.39 in) or more of precipitation in 17 years, most in 1936 with 182.
  • Alakahi Upper: days with 25 mm (0.98 in) or more of precipitation in 17 years, most in 1936 with 104.
  • Alakahi Upper: days with 50 mm (1.97 in) or more of precipitation in 17 years, most in 1936 with 37.
  • Alakahi Upper: days with 100 mm (3.94 in) or more of precipitation in 15 years, most in 1936 with 11.
  • 5 fixed thresholds have at least one qualifying day at Alakahi Upper.
17 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Alakahi Upper Days per year at Alakahi Upper with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 182 in 1936. 0501001502001919: 931921: 1321922: 1121923: 1261924: 1091935: 1201936: 1821937: 1621938: 1171939: 1521940: 1061941: 1691942: 1221943: 1141944: 1331945: 791946: 128191919221924193619381940194219441946
Days per year at Alakahi Upper with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 182 in 1936.
Days with 10 mm (0.39 in) or more of precipitation per year at Alakahi Upper
YearDaysDecade average
19199393
1921132119.8
1922112119.8
1923126119.8
1924109119.8
1935120146.6
1936182146.6
1937162146.6
1938117146.6
1939152146.6
1940106121.6
1941169121.6
1942122121.6
1943114121.6
1944133121.6
194579121.6
1946128121.6
First to last qualifying date each year at Alakahi Upper For each year, a bar from the first to the last day at Alakahi Upper meeting 10 mm (0.39 in). 1919: 1 January 1919 to 30 December 19191921: 2 January 1921 to 27 December 19211922: 4 January 1922 to 30 December 19221923: 2 January 1923 to 19 December 19231924: 1 January 1924 to 31 December 19241935: 1 January 1935 to 21 December 19351936: 8 January 1936 to 31 December 19361937: 1 January 1937 to 29 December 19371938: 5 January 1938 to 31 December 19381939: 1 January 1939 to 24 December 19391940: 10 February 1940 to 28 December 19401941: 1 January 1941 to 30 December 19411942: 5 January 1942 to 27 December 19421943: 3 January 1943 to 28 December 19431944: 5 January 1944 to 27 December 19441945: 21 January 1945 to 4 December 19451946: 2 January 1946 to 30 December 1946191919231936193919421945JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Alakahi Upper meeting 10 mm (0.39 in).
First to last qualifying date each year at Alakahi Upper
YearFirst dateLast date
19191919-01-011919-12-30
19211921-01-021921-12-27
19221922-01-041922-12-30
19231923-01-021923-12-19
19241924-01-011924-12-31
19351935-01-011935-12-21
19361936-01-081936-12-31
19371937-01-011937-12-29
19381938-01-051938-12-31
19391939-01-011939-12-24
19401940-02-101940-12-28
19411941-01-011941-12-30
19421942-01-051942-12-27
19431943-01-031943-12-28
19441944-01-051944-12-27
19451945-01-211945-12-04
19461946-01-021946-12-30

Every Fixed Threshold

Fixed thresholds at Alakahi Upper
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain171821936128
25 mm (0.98 in): Days with 25 mm or more rain17104193655
50 mm (1.97 in): Days with 50 mm or more rain1737193616
100 mm (3.94 in): Days with 100 mm or more rain151119366
200 mm (7.87 in): Days with 200 mm or more rain6119231

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1919.

Download the Data

  • Data for Alakahi Upper 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).