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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Kumaloa Ditch Weather Records (USC00515032)

Record envelope, standing records and threshold days for Kumaloa Ditch (USC00515032), Hawaii, United States, with 31 years of record.

Key Facts for Kumaloa Ditch

  • Kumaloa Ditch (USC00515032) is a weather station in Hawaii, United States at 21.98 latitude and -159.47 longitude, 255 m (835 ft) above sea level.
  • The station reports from 1907 to 1937, 31 years of record.
  • 0 records set at Kumaloa Ditch still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Kumaloa Ditch set a daily record precipitation of 57.7 mm (2.3 in) on 26 December 1937.

About the Station

  • Location: Hawaii, United States, 21.98 latitude, -159.47 longitude.
  • Elevation: 255 m (835 ft).
  • Period of record: 1907 to 1937, 31 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Kumaloa Ditch, with 2026 drawn through them The band shows the record high and record low for each calendar day at Kumaloa Ditch. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Kumaloa Ditch. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Kumaloa Ditch, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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Which Years Hold Standing Records

0 standing records
Standing records at Kumaloa Ditch by the year they were set 0 records at Kumaloa Ditch still stand. 00000000000
0 records at Kumaloa Ditch still stand.
Standing records at Kumaloa Ditch by the year they were set
Year setStanding records

Wettest Day of Each Month

Mar: 279.4 mm (11.0 in)
Record daily precipitation for each month at Kumaloa Ditch The wettest day on record for each calendar month at Kumaloa Ditch. The most was 279.4 mm (11.0 in) on 31 March 1923. 0100200300 Jan: 222.3 mm (8.8 in), 16 January 1920 Jan Feb: 248.9 mm (9.8 in), 10 February 1925 Feb Mar: 279.4 mm (11.0 in), 31 March 1923 Mar Apr: 204.5 mm (8.1 in), 19 April 1918 Apr May: 172.7 mm (6.8 in), 9 May 1914 May Jun: 171.5 mm (6.8 in), 3 June 1913 Jun Jul: 205.7 mm (8.1 in), 26 July 1929 Jul Aug: 209.6 mm (8.3 in), 19 August 1907 Aug Sep: 165.6 mm (6.5 in), 27 September 1914 Sep Oct: 109.5 mm (4.3 in), 18 October 1937 Oct Nov: 163.1 mm (6.4 in), 25 November 1918 Nov Dec: 154.9 mm (6.1 in), 22 December 1921 Dec
The wettest day on record for each calendar month at Kumaloa Ditch. The most was 279.4 mm (11.0 in) on 31 March 1923.
Record daily precipitation for each month at Kumaloa Ditch
MonthRecord daily precipitation (mm)Date
Jan222.3 mm (8.8 in)16 January 1920
Feb248.9 mm (9.8 in)10 February 1925
Mar279.4 mm (11.0 in)31 March 1923
Apr204.5 mm (8.1 in)19 April 1918
May172.7 mm (6.8 in)9 May 1914
Jun171.5 mm (6.8 in)3 June 1913
Jul205.7 mm (8.1 in)26 July 1929
Aug209.6 mm (8.3 in)19 August 1907
Sep165.6 mm (6.5 in)27 September 1914
Oct109.5 mm (4.3 in)18 October 1937
Nov163.1 mm (6.4 in)25 November 1918
Dec154.9 mm (6.1 in)22 December 1921

Latest Records

20
Latest records at Kumaloa Ditch
DateStationRecordValueBeat old record byOld record stoodSignificance
26 December 1937Kumaloa Ditch, USdaily rain57.7 mm (2.3 in)9.2 mm (0.36 in)22 years13 of 100 (Routine)
1 November 1937Kumaloa Ditch, USdaily rain46.2 mm (1.8 in)14.4 mm (0.6 in)16 years16 of 100 (Routine)
29 October 1937Kumaloa Ditch, USdaily rain84.8 mm (3.3 in)14.9 mm (0.6 in)20 years21 of 100 (Routine)
18 October 1937Kumaloa Ditch, USmonthly rain109.5 mm (4.3 in)5.4 mm (0.21 in)13 years20 of 100 (Routine)
15 October 1937Kumaloa Ditch, USdaily rain40.9 mm (1.6 in)9.1 mm (0.36 in)16 years15 of 100 (Routine)
2 October 1937Kumaloa Ditch, USdaily rain30.5 mm (1.2 in)11.4 mm (0.4 in)8 years14 of 100 (Routine)
28 August 1937Kumaloa Ditch, USdaily rain (Tie)15.2 mm (0.6 in)tie12 years1 of 100 (Routine)
17 August 1937Kumaloa Ditch, USdaily rain87.9 mm (3.5 in)25.9 mm (1.0 in)8 years24 of 100 (Routine)
3 August 1937Kumaloa Ditch, USdaily rain46.0 mm (1.8 in)13.0 mm (0.5 in)6 years13 of 100 (Routine)
2 August 1937Kumaloa Ditch, USdaily rain41.4 mm (1.6 in)3.3 mm (0.13 in)7 years7 of 100 (Routine)
20 July 1937Kumaloa Ditch, USdaily rain36.8 mm (1.4 in)8.9 mm (0.35 in)4 years12 of 100 (Routine)
16 July 1937Kumaloa Ditch, USdaily rain38.9 mm (1.5 in)9.7 mm (0.38 in)11 years14 of 100 (Routine)
9 July 1937Kumaloa Ditch, USdaily rain23.4 mm (0.9 in)5.1 mm (0.20 in)20 years13 of 100 (Routine)
6 July 1937Kumaloa Ditch, USdaily rain19.6 mm (0.8 in)5.4 mm (0.21 in)10 years10 of 100 (Routine)
4 July 1937Kumaloa Ditch, USdaily rain18.3 mm (0.7 in)3.1 mm (0.12 in)30 years14 of 100 (Routine)
22 May 1937Kumaloa Ditch, USdaily rain27.7 mm (1.1 in)4.6 mm (0.18 in)7 years8 of 100 (Routine)
6 May 1937Kumaloa Ditch, USdaily rain55.6 mm (2.2 in)22.6 mm (0.9 in)0 years18 of 100 (Routine)
3 May 1937Kumaloa Ditch, USdaily rain69.6 mm (2.7 in)48.5 mm (1.9 in)30 years45 of 100 (Notable)
20 April 1937Kumaloa Ditch, USdaily rain110.0 mm (4.3 in)71.4 mm (2.8 in)18 years48 of 100 (Notable)
19 March 1937Kumaloa Ditch, USdaily rain113.3 mm (4.5 in)63.3 mm (2.5 in)0 years27 of 100 (Routine)

Extremes by Year

1907 to 1937
Yearly extremes at Kumaloa Ditch: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)279.4 mm (11.0 in)1923146.1 mm (5.8 in)31
Wettest five days (Rx5day)708.2 mm (27.9 in)1921282.2 mm (11.1 in)31
Longest dry spell (CDD)23 days193310 days31

Wettest day (Rx1day)

Wettest day (Rx1day) at Kumaloa Ditch by year The wettest day of the year at Kumaloa Ditch, 1907 to 1937. The record is 279.4 mm (11.0 in) in 1923, marked on the chart; the median year is 146.1 mm (5.8 in). 0100200300191019151920192519301935Record: 279.4 mm (11.0 in) in 1923
The wettest day of the year at Kumaloa Ditch, 1907 to 1937. The record is 279.4 mm (11.0 in) in 1923, marked on the chart; the median year is 146.1 mm (5.8 in).
Wettest day (Rx1day) at Kumaloa Ditch by year
YearWettest day (Rx1day)
1907209.6 mm (8.3 in)
190874.9 mm (2.9 in)
1909221.5 mm (8.7 in)
191068.8 mm (2.7 in)
191191.7 mm (3.6 in)
191251.8 mm (2.0 in)
1913171.5 mm (6.8 in)
1914172.7 mm (6.8 in)
1915116.3 mm (4.6 in)
1916219.7 mm (8.6 in)
1917128.8 mm (5.1 in)
1918205.7 mm (8.1 in)
191948.3 mm (1.9 in)
1920222.3 mm (8.8 in)
1921219.2 mm (8.6 in)
1922114.3 mm (4.5 in)
1923279.4 mm (11.0 in)
1924152.4 mm (6.0 in)
1925248.9 mm (9.8 in)
1926127.0 mm (5.0 in)
1927146.1 mm (5.8 in)
1928139.7 mm (5.5 in)
1929205.7 mm (8.1 in)
1930165.1 mm (6.5 in)
193153.3 mm (2.1 in)
1932119.4 mm (4.7 in)
1933177.8 mm (7.0 in)
193499.1 mm (3.9 in)
1935149.9 mm (5.9 in)
1936123.2 mm (4.9 in)
1937122.9 mm (4.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Kumaloa Ditch by year The wettest five days of the year at Kumaloa Ditch, 1907 to 1937. The record is 708.2 mm (27.9 in) in 1921, marked on the chart; the median year is 282.2 mm (11.1 in). 0200400600800191019151920192519301935Record: 708.2 mm (27.9 in) in 1921
The wettest five days of the year at Kumaloa Ditch, 1907 to 1937. The record is 708.2 mm (27.9 in) in 1921, marked on the chart; the median year is 282.2 mm (11.1 in).
Wettest five days (Rx5day) at Kumaloa Ditch by year
YearWettest five days (Rx5day)
1907430.1 mm (16.9 in)
1908160.1 mm (6.3 in)
1909172.3 mm (6.8 in)
1910132.1 mm (5.2 in)
1911282.2 mm (11.1 in)
1912137.6 mm (5.4 in)
1913191.8 mm (7.6 in)
1914479.5 mm (18.9 in)
1915261.3 mm (10.3 in)
1916416.6 mm (16.4 in)
1917297.9 mm (11.7 in)
1918481.8 mm (19.0 in)
1919140.0 mm (5.5 in)
1920394.1 mm (15.5 in)
1921708.2 mm (27.9 in)
1922280.7 mm (11.1 in)
1923299.5 mm (11.8 in)
1924384.3 mm (15.1 in)
1925266.6 mm (10.5 in)
1926218.7 mm (8.6 in)
1927371.8 mm (14.6 in)
1928307.3 mm (12.1 in)
1929252.7 mm (9.9 in)
1930236.3 mm (9.3 in)
1931148.0 mm (5.8 in)
1932349.3 mm (13.8 in)
1933359.4 mm (14.1 in)
1934179.2 mm (7.1 in)
1935346.2 mm (13.6 in)
1936207.1 mm (8.2 in)
1937291.2 mm (11.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Kumaloa Ditch by year The longest dry spell of the year at Kumaloa Ditch, 1907 to 1937. The record is 23 days in 1933, marked on the chart; the median year is 10 days. 0102030191019151920192519301935Record: 23 days in 1933
The longest dry spell of the year at Kumaloa Ditch, 1907 to 1937. The record is 23 days in 1933, marked on the chart; the median year is 10 days.
Longest dry spell (CDD) at Kumaloa Ditch by year
YearLongest dry spell (CDD)
19076 days
19083 days
19097 days
19102 days
19116 days
19129 days
19138 days
191414 days
191510 days
191610 days
19177 days
19186 days
191913 days
19209 days
19217 days
192211 days
192310 days
192416 days
19259 days
192612 days
19277 days
19289 days
192912 days
193012 days
193111 days
193211 days
193323 days
193414 days
193519 days
193611 days
19379 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Download the Data

  • Data for Kumaloa Ditch standing records by year: CSV or JSON. Field meanings are on the data page.
  • 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). Records are computed by this site and are not official.

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