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Built 2026-10-19 (19 October 2026)

Kumaloa Ditch Threshold Days by Year (USC00515032)

5 fixed thresholds counted per year at Kumaloa Ditch (USC00515032): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Kumaloa Ditch Thresholds

  • Kumaloa Ditch: days with 10 mm (0.39 in) or more of precipitation in 29 years, most in 1927 with 137.
  • Kumaloa Ditch: days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 1918 with 41.
  • Kumaloa Ditch: days with 50 mm (1.97 in) or more of precipitation in 28 years, most in 1914 with 15.
  • Kumaloa Ditch: days with 100 mm (3.94 in) or more of precipitation in 23 years, most in 1918 with 5.
  • 5 fixed thresholds have at least one qualifying day at Kumaloa Ditch.
29 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Kumaloa Ditch Days per year at Kumaloa Ditch with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 137 in 1927. 0501001501908: 671909: 641911: 891912: 561913: 831914: 951915: 1031916: 1191917: 891918: 1071919: 561920: 931921: 821922: 831923: 831924: 691925: 761926: 481927: 1371928: 1061929: 821930: 941931: 971932: 1081933: 801934: 801935: 731936: 971937: 1061908191219151918192119241927193019331936
Days per year at Kumaloa Ditch with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 137 in 1927.
Days with 10 mm (0.39 in) or more of precipitation per year at Kumaloa Ditch
YearDaysDecade average
19086765.5
19096465.5
19118988.6
19125688.6
19138388.6
19149588.6
191510388.6
191611988.6
19178988.6
191810788.6
19195688.6
19209385.9
19218285.9
19228385.9
19238385.9
19246985.9
19257685.9
19264885.9
192713785.9
192810685.9
19298285.9
19309491.9
19319791.9
193210891.9
19338091.9
19348091.9
19357391.9
19369791.9
193710691.9
First to last qualifying date each year at Kumaloa Ditch For each year, a bar from the first to the last day at Kumaloa Ditch meeting 10 mm (0.39 in). 1908: 5 February 1908 to 21 December 19081909: 10 January 1909 to 29 December 19091911: 7 January 1911 to 30 December 19111912: 5 January 1912 to 24 December 19121913: 13 January 1913 to 6 December 19131914: 8 January 1914 to 19 December 19141915: 10 February 1915 to 29 December 19151916: 3 January 1916 to 31 December 19161917: 4 January 1917 to 28 December 19171918: 14 January 1918 to 29 December 19181919: 13 January 1919 to 22 November 19191920: 8 January 1920 to 25 December 19201921: 2 January 1921 to 26 December 19211922: 4 January 1922 to 31 December 19221923: 1 January 1923 to 31 December 19231924: 1 January 1924 to 25 December 19241925: 2 January 1925 to 30 December 19251926: 17 January 1926 to 15 November 19261927: 3 January 1927 to 25 December 19271928: 2 January 1928 to 28 December 19281929: 3 January 1929 to 31 December 19291930: 2 January 1930 to 16 December 19301931: 7 January 1931 to 30 December 19311932: 1 January 1932 to 31 December 19321933: 1 January 1933 to 24 December 19331934: 19 January 1934 to 28 December 19341935: 1 January 1935 to 31 December 19351936: 1 January 1936 to 31 December 19361937: 4 January 1937 to 27 December 193719081913191719211925192919331937JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Kumaloa Ditch meeting 10 mm (0.39 in).
First to last qualifying date each year at Kumaloa Ditch
YearFirst dateLast date
19081908-02-051908-12-21
19091909-01-101909-12-29
19111911-01-071911-12-30
19121912-01-051912-12-24
19131913-01-131913-12-06
19141914-01-081914-12-19
19151915-02-101915-12-29
19161916-01-031916-12-31
19171917-01-041917-12-28
19181918-01-141918-12-29
19191919-01-131919-11-22
19201920-01-081920-12-25
19211921-01-021921-12-26
19221922-01-041922-12-31
19231923-01-011923-12-31
19241924-01-011924-12-25
19251925-01-021925-12-30
19261926-01-171926-11-15
19271927-01-031927-12-25
19281928-01-021928-12-28
19291929-01-031929-12-31
19301930-01-021930-12-16
19311931-01-071931-12-30
19321932-01-011932-12-31
19331933-01-011933-12-24
19341934-01-191934-12-28
19351935-01-011935-12-31
19361936-01-011936-12-31
19371937-01-041937-12-27

Every Fixed Threshold

Fixed thresholds at Kumaloa Ditch
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain291371927106
25 mm (0.98 in): Days with 25 mm or more rain2941191836
50 mm (1.97 in): Days with 50 mm or more rain2815191412
100 mm (3.94 in): Days with 100 mm or more rain23519185
200 mm (7.87 in): Days with 200 mm or more rain8219181

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1908.

Download the Data

  • Data for Kumaloa Ditch 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).