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Koloa 936 Weather Records (USC00514742)

Record envelope, standing records and threshold days for Koloa 936 (USC00514742), Hawaii, United States, with 122 years of record.

Key Facts for Koloa 936

  • Koloa 936 (USC00514742) is a weather station in Hawaii, United States at 21.91 latitude and -159.46 longitude, 73 m (240 ft) above sea level.
  • The station reports from 1905 to 2026, 122 years of record.
  • 1,464 records set at Koloa 936 still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Koloa 936 set a daily record precipitation of 48.8 mm (1.9 in) on 8 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Hawaii, United States, 21.91 latitude, -159.46 longitude.
  • Elevation: 73 m (240 ft).
  • Period of record: 1905 to 2026, 122 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Koloa 936, with 2026 drawn through them The band shows the record high and record low for each calendar day at Koloa 936. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 5101520253035 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Koloa 936. 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 Koloa 936, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan30.6 C (87.1 F)8.9 C (48.0 F)n/an/a
Feb31.1 C (88.0 F)7.8 C (46.0 F)n/an/a
Mar31.1 C (88.0 F)7.8 C (46.0 F)n/an/a
Apr30.0 C (86.0 F)10.6 C (51.1 F)n/an/a
May30.6 C (87.1 F)12.2 C (54.0 F)n/an/a
Jun31.1 C (88.0 F)15.0 C (59.0 F)n/an/a
Jul31.7 C (89.1 F)17.2 C (63.0 F)n/an/a
Aug31.7 C (89.1 F)16.1 C (61.0 F)n/an/a
Sep31.7 C (89.1 F)15.0 C (59.0 F)n/an/a
Oct31.7 C (89.1 F)11.7 C (53.1 F)n/an/a
Nov30.6 C (87.1 F)10.0 C (50.0 F)n/an/a
Dec30.0 C (86.0 F)10.0 C (50.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Koloa 936 by the year they were set 1,464 records at Koloa 936 still stand. 1918 holds the most, with 74. 0204060801905: 561906: 341907: 331908: 201909: 321910: 361911: 371912: 351913: 351914: 351915: 361916: 271917: 291918: 741919: 251920: 131921: 321922: 151923: 311924: 151925: 171926: 181927: 171928: 101929: 421930: 341931: 441932: 331933: 471934: 321935: 301936: 261937: 171938: 351939: 211940: 441941: 711942: 361943: 341944: 161945: 401946: 241947: 151948: 301949: 71950: 111951: 301952: 121953: 161954: 51905191019151920192519301935194019451950
1,464 records at Koloa 936 still stand. 1918 holds the most, with 74.
Standing records at Koloa 936 by the year they were set
Year setStanding records
190556
190634
190733
190820
190932
191036
191137
191235
191335
191435
191536
191627
191729
191874
191925
192013
192132
192215
192331
192415
192517
192618
192717
192810
192942
193034
193144
193233
193347
193432
193530
193626
193717
193835
193921
194044
194171
194236
194334
194416
194540
194624
194715
194830
19497
195011
195130
195212
195316
19545

All-Time Record Progression

1 new records
When Koloa 936 set new all-time records 1 all-time records were set at Koloa 936 between 21 March 1936 and 21 March 1936. Each dot is a new record. Record low minimum temperature21 March 1936: Record low minimum temperature 7.8 C (46.0 F)
1 all-time records were set at Koloa 936 between 21 March 1936 and 21 March 1936. Each dot is a new record.
When Koloa 936 set new all-time records
DateKindDetail
1936-03-21Record low minimum temperatureRecord low minimum temperature 7.8 C (46.0 F)

Wettest Day of Each Month

Jan: 261.6 mm (10.3 in)
Record daily precipitation for each month at Koloa 936 The wettest day on record for each calendar month at Koloa 936. The most was 261.6 mm (10.3 in) on 16 January 1921. 0100200300 Jan: 261.6 mm (10.3 in), 16 January 1921 Jan Feb: 250.2 mm (9.9 in), 29 February 1944 Feb Mar: 192.3 mm (7.6 in), 31 March 1923 Mar Apr: 247.7 mm (9.8 in), 12 April 2024 Apr May: 113.5 mm (4.5 in), 13 May 1940 May Jun: 118.9 mm (4.7 in), 3 June 1913 Jun Jul: 95.8 mm (3.8 in), 26 July 1929 Jul Aug: 98.0 mm (3.9 in), 9 August 2014 Aug Sep: 152.9 mm (6.0 in), 27 September 1914 Sep Oct: 130.8 mm (5.1 in), 2 October 1968 Oct Nov: 226.3 mm (8.9 in), 1 November 1982 Nov Dec: 181.6 mm (7.1 in), 24 December 1921 Dec
The wettest day on record for each calendar month at Koloa 936. The most was 261.6 mm (10.3 in) on 16 January 1921.
Record daily precipitation for each month at Koloa 936
MonthRecord daily precipitation (mm)Date
Jan261.6 mm (10.3 in)16 January 1921
Feb250.2 mm (9.9 in)29 February 1944
Mar192.3 mm (7.6 in)31 March 1923
Apr247.7 mm (9.8 in)12 April 2024
May113.5 mm (4.5 in)13 May 1940
Jun118.9 mm (4.7 in)3 June 1913
Jul95.8 mm (3.8 in)26 July 1929
Aug98.0 mm (3.9 in)9 August 2014
Sep152.9 mm (6.0 in)27 September 1914
Oct130.8 mm (5.1 in)2 October 1968
Nov226.3 mm (8.9 in)1 November 1982
Dec181.6 mm (7.1 in)24 December 1921

Period of Record Coverage

1905 to 1954
Days with data per year at Koloa 936 50 years of record at Koloa 936, 1905 to 1954. 5 years have data for under 90 percent of days and are left out of rankings: 1950, 1951, 1952, 1953, 1954. 1905: 365 of 365 days1906: 365 of 365 days1907: 364 of 365 days1908: 365 of 366 days1909: 364 of 365 days1910: 362 of 365 days1911: 363 of 365 days1912: 366 of 366 days1913: 364 of 365 days1914: 364 of 365 days1915: 363 of 365 days1916: 366 of 366 days1917: 365 of 365 days1918: 365 of 365 days1919: 349 of 365 days1920: 364 of 366 days1921: 363 of 365 days1922: 365 of 365 days1923: 362 of 365 days1924: 362 of 366 days1925: 359 of 365 days1926: 358 of 365 days1927: 361 of 365 days1928: 330 of 366 days1929: 364 of 365 days1930: 365 of 365 days1931: 364 of 365 days1932: 363 of 366 days1933: 365 of 365 days1934: 365 of 365 days1935: 364 of 365 days1936: 366 of 366 days1937: 361 of 365 days1938: 350 of 365 days1939: 365 of 365 days1940: 361 of 366 days1941: 365 of 365 days1942: 365 of 365 days1943: 360 of 365 days1944: 364 of 366 days1945: 364 of 365 days1946: 363 of 365 days1947: 361 of 365 days1948: 360 of 366 days1949: 363 of 365 days1950: 316 of 365 days1951: 260 of 365 days1952: 286 of 366 days1953: 283 of 365 days1954: 272 of 365 days19101920193019401950
50 years of record at Koloa 936, 1905 to 1954. 5 years have data for under 90 percent of days and are left out of rankings: 1950, 1951, 1952, 1953, 1954.
Days with data per year at Koloa 936
YearDays with dataShare of yearComplete
1905365100%Yes
1906365100%Yes
1907364100%Yes
1908365100%Yes
1909364100%Yes
191036299%Yes
191136399%Yes
1912366100%Yes
1913364100%Yes
1914364100%Yes
191536399%Yes
1916366100%Yes
1917365100%Yes
1918365100%Yes
191934996%Yes
192036499%Yes
192136399%Yes
1922365100%Yes
192336299%Yes
192436299%Yes
192535998%Yes
192635898%Yes
192736199%Yes
192833090%Yes
1929364100%Yes
1930365100%Yes
1931364100%Yes
193236399%Yes
1933365100%Yes
1934365100%Yes
1935364100%Yes
1936366100%Yes
193736199%Yes
193835096%Yes
1939365100%Yes
194036199%Yes
1941365100%Yes
1942365100%Yes
194336099%Yes
194436499%Yes
1945364100%Yes
194636399%Yes
194736199%Yes
194836098%Yes
194936399%Yes
195031687%No
195126071%No
195228678%No
195328378%No
195427275%No

Latest Records

20
Latest records at Koloa 936
DateStationRecordValueBeat old record byOld record stoodSignificance
8 October 2026Koloa 936, USdaily rain (Provisional)48.8 mm (1.9 in)30.3 mm (1.2 in)21 years45 of 100 (Notable)
8 September 2026Koloa 936, USdaily rain (Provisional)48.3 mm (1.9 in)36.4 mm (1.4 in)120 years80 of 100 (Exceptional)
17 August 2026Koloa 936, USdaily rain (Provisional)63.5 mm (2.5 in)26.4 mm (1.0 in)44 years55 of 100 (Notable)
11 May 2026Koloa 936, USdaily rain78.7 mm (3.1 in)32.5 mm (1.3 in)84 years70 of 100 (Major)
10 April 2026Koloa 936, USdaily rain99.1 mm (3.9 in)28.5 mm (1.1 in)67 years52 of 100 (Notable)
20 March 2026Koloa 936, USdaily rain88.9 mm (3.5 in)3.6 mm (0.14 in)108 years42 of 100 (Notable)
16 March 2026Koloa 936, USdaily rain39.4 mm (1.6 in)2.3 mm (0.09 in)112 years41 of 100 (Notable)
11 March 2026Koloa 936, USdaily rain78.7 mm (3.1 in)26.9 mm (1.1 in)4 years26 of 100 (Routine)
9 February 2026Koloa 936, USdaily rain71.1 mm (2.8 in)20.3 mm (0.8 in)94 years50 of 100 (Notable)
6 November 2024Koloa 936, USdaily rain68.6 mm (2.7 in)29.2 mm (1.1 in)40 years39 of 100 (Notable)
15 April 2024Koloa 936, USdaily rain68.6 mm (2.7 in)26.2 mm (1.0 in)11 years36 of 100 (Notable)
12 April 2024Koloa 936, USmonthly rain247.7 mm (9.8 in)115.6 mm (4.6 in)105 years90 of 100 (Exceptional)
8 April 2024Koloa 936, USdaily rain47.0 mm (1.9 in)14.5 mm (0.6 in)14 years26 of 100 (Routine)
2 June 2023Koloa 936, USdaily rain21.8 mm (0.9 in)1.5 mm (0.06 in)84 years20 of 100 (Routine)
19 May 2023Koloa 936, USdaily rain19.8 mm (0.8 in)2.8 mm (0.11 in)112 years20 of 100 (Routine)
30 March 2023Koloa 936, USdaily rain88.4 mm (3.5 in)31.8 mm (1.3 in)2 years27 of 100 (Routine)
21 February 2023Koloa 936, USdaily rain97.0 mm (3.8 in)56.1 mm (2.2 in)104 years73 of 100 (Major)
19 December 2022Koloa 936, USdaily rain95.3 mm (3.8 in)44.5 mm (1.8 in)72 years58 of 100 (Notable)
19 May 2022Koloa 936, USdaily rain (Tie)17.0 mm (0.7 in)tie112 years10 of 100 (Routine)
3 January 2022Koloa 936, USdaily rain215.9 mm (8.5 in)180.6 mm (7.1 in)95 years78 of 100 (Major)

Climate Trend

43 complete years, 1905 to 1954
Annual mean temperature at Koloa 936 as warming stripes, 1905 to 1954 One stripe for each of 43 complete years at Koloa 936, 1905 to 1954. Blue stripes are years cooler than the station's own mean of 22.9 C (73.3 F); red stripes are warmer. The coolest year was 1933, at 22.2 C (72.0 F), and the warmest was 1945, at 23.7 C (74.6 F). The strongest colour marks a difference of 0.8 C (1.4 F). 1905: 22.5 C, -0.4 C from the station mean1906: 23.1 C, +0.2 C from the station mean1907: 22.9 C, -0.1 C from the station mean1908: 22.9 C, -0.1 C from the station mean1909: 22.5 C, -0.5 C from the station mean1910: 22.8 C, -0.2 C from the station mean1911: 23.0 C, +0.1 C from the station mean1912: 23.3 C, +0.3 C from the station mean1913: 23.2 C, +0.2 C from the station mean1914: 22.6 C, -0.3 C from the station mean1915: 22.9 C, 0.0 C from the station mean1916: 22.8 C, -0.2 C from the station mean1918: 22.4 C, -0.5 C from the station mean1920: 23.0 C, +0.1 C from the station mean1921: 23.1 C, +0.1 C from the station mean1922: 22.6 C, -0.3 C from the station mean1923: 23.0 C, +0.1 C from the station mean1924: 22.7 C, -0.2 C from the station mean1925: 22.8 C, -0.1 C from the station mean1926: 23.2 C, +0.3 C from the station mean1927: 23.0 C, +0.1 C from the station mean1929: 22.9 C, 0.0 C from the station mean1930: 22.8 C, -0.2 C from the station mean1931: 22.6 C, -0.3 C from the station mean1932: 22.7 C, -0.2 C from the station mean1933: 22.2 C, -0.7 C from the station mean1934: 23.3 C, +0.3 C from the station mean1935: 23.0 C, 0.0 C from the station mean1936: 22.9 C, -0.1 C from the station mean1937: 22.9 C, 0.0 C from the station mean1939: 22.9 C, 0.0 C from the station mean1940: 23.4 C, +0.5 C from the station mean1941: 23.6 C, +0.6 C from the station mean1942: 23.4 C, +0.4 C from the station mean1943: 23.5 C, +0.6 C from the station mean1944: 23.3 C, +0.3 C from the station mean1945: 23.7 C, +0.7 C from the station mean1946: 23.4 C, +0.5 C from the station mean1947: 23.1 C, +0.1 C from the station mean1948: 22.8 C, -0.2 C from the station mean1949: 22.4 C, -0.5 C from the station mean1950: 22.9 C, -0.1 C from the station mean1954: 22.7 C, -0.3 C from the station mean1905191019151920192519301935194019451950
One stripe for each of 43 complete years at Koloa 936, 1905 to 1954. Blue stripes are years cooler than the station's own mean of 22.9 C (73.3 F); red stripes are warmer. The coolest year was 1933, at 22.2 C (72.0 F), and the warmest was 1945, at 23.7 C (74.6 F). The strongest colour marks a difference of 0.8 C (1.4 F).
Annual mean temperature at Koloa 936 as warming stripes, 1905 to 1954
YearAnnual mean temperatureDifference from the station mean
190522.5 C-0.44 C
190623.1 C+0.20 C
190722.9 C-0.08 C
190822.9 C-0.06 C
190922.5 C-0.48 C
191022.8 C-0.16 C
191123.0 C+0.08 C
191223.3 C+0.32 C
191323.2 C+0.24 C
191422.6 C-0.33 C
191522.9 C-0.01 C
191622.8 C-0.18 C
191822.4 C-0.52 C
192023.0 C+0.10 C
192123.1 C+0.13 C
192222.6 C-0.32 C
192323.0 C+0.07 C
192422.7 C-0.23 C
192522.8 C-0.12 C
192623.2 C+0.25 C
192723.0 C+0.08 C
192922.9 C-0.02 C
193022.8 C-0.17 C
193122.6 C-0.30 C
193222.7 C-0.24 C
193322.2 C-0.73 C
193423.3 C+0.34 C
193523.0 C+0.01 C
193622.9 C-0.09 C
193722.9 C-0.04 C
193922.9 C-0.02 C
194023.4 C+0.46 C
194123.6 C+0.63 C
194223.4 C+0.41 C
194323.5 C+0.58 C
194423.3 C+0.33 C
194523.7 C+0.71 C
194623.4 C+0.50 C
194723.1 C+0.11 C
194822.8 C-0.19 C
194922.4 C-0.50 C
195022.9 C-0.09 C
195422.7 C-0.27 C

The fitted trend in annual mean temperature here over 1905 to 1954 is 0.06 C (-0.01 to 0.13) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.11 F (-0.02 to 0.24) per decade. The slope is a straight line fitted to 43 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Koloa 936
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.06 C (-0.01 to 0.13) per decade0.11 F (-0.02 to 0.24) per decade1905 to 195443Not clearly different from zero
Mean daily maximum0.09 C (-0.05 to 0.23) per decade0.2 F (-0.1 to 0.4) per decade1905 to 195443Not clearly different from zero
Mean daily minimum0.03 C (-0.04 to 0.10) per decade0.1 F (-0.1 to 0.2) per decade1905 to 195443Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1905 to 2026
Yearly extremes at Koloa 936: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)31.7 C (89.1 F)190530.6 C (87.1 F)50
Coldest night (TNn)7.8 C (46.0 F)193610.6 C (51.1 F)50
Wettest day (Rx1day)261.6 mm (10.3 in)192190.7 mm (3.6 in)122
Wettest five days (Rx5day)463.6 mm (18.3 in)1921107.0 mm (4.2 in)122
Longest dry spell (CDD)29 days200011 days122

Hottest day (TXx)

Hottest day (TXx) at Koloa 936 by year The hottest day of the year at Koloa 936, 1905 to 2026. The record is 31.7 C (89.1 F) in 1905, marked on the chart; the median year is 30.6 C (87.1 F). 2829303132192019401960198020002020Record: 31.7 C (89.1 F) in 1905
The hottest day of the year at Koloa 936, 1905 to 2026. The record is 31.7 C (89.1 F) in 1905, marked on the chart; the median year is 30.6 C (87.1 F).
Hottest day (TXx) at Koloa 936 by year
YearHottest day (TXx)
190531.7 C (89.1 F)
190630.6 C (87.1 F)
190731.7 C (89.1 F)
190830.6 C (87.1 F)
190930.0 C (86.0 F)
191031.7 C (89.1 F)
191131.1 C (88.0 F)
191231.1 C (88.0 F)
191331.7 C (89.1 F)
191430.6 C (87.1 F)
191530.0 C (86.0 F)
191629.4 C (84.9 F)
191729.4 C (84.9 F)
191829.4 C (84.9 F)
191931.1 C (88.0 F)
192030.0 C (86.0 F)
192131.1 C (88.0 F)
192230.0 C (86.0 F)
192330.6 C (87.1 F)
192429.4 C (84.9 F)
192530.0 C (86.0 F)
192630.6 C (87.1 F)
192731.1 C (88.0 F)
192830.0 C (86.0 F)
192930.6 C (87.1 F)
193031.1 C (88.0 F)
193130.0 C (86.0 F)
193230.6 C (87.1 F)
193331.1 C (88.0 F)
193431.7 C (89.1 F)
193531.1 C (88.0 F)
193631.1 C (88.0 F)
193730.0 C (86.0 F)
193831.7 C (89.1 F)
193931.1 C (88.0 F)
194031.1 C (88.0 F)
194131.7 C (89.1 F)
194231.1 C (88.0 F)
194331.7 C (89.1 F)
194431.1 C (88.0 F)
194531.7 C (89.1 F)
194631.1 C (88.0 F)
194730.6 C (87.1 F)
194829.4 C (84.9 F)
194928.9 C (84.0 F)
195029.4 C (84.9 F)
195129.4 C (84.9 F)
195228.9 C (84.0 F)
195330.0 C (86.0 F)
195429.4 C (84.9 F)
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
2003n/a
2004n/a
2005n/a
2006n/a
2007n/a
2008n/a
2009n/a
2010n/a
2011n/a
2012n/a
2013n/a
2014n/a
2015n/a
2016n/a
2017n/a
2018n/a
2019n/a
2020n/a
2021n/a
2022n/a
2023n/a
2024n/a
2025n/a
2026n/a

Coldest night (TNn)

Coldest night (TNn) at Koloa 936 by year The coldest night of the year at Koloa 936, 1905 to 2026. The record is 7.8 C (46.0 F) in 1936, marked on the chart; the median year is 10.6 C (51.1 F). 68101214192019401960198020002020Record: 7.8 C (46.0 F) in 1936
The coldest night of the year at Koloa 936, 1905 to 2026. The record is 7.8 C (46.0 F) in 1936, marked on the chart; the median year is 10.6 C (51.1 F).
Coldest night (TNn) at Koloa 936 by year
YearColdest night (TNn)
19058.9 C (48.0 F)
190610.0 C (50.0 F)
190712.2 C (54.0 F)
190810.6 C (51.1 F)
190911.1 C (52.0 F)
191011.1 C (52.0 F)
191112.2 C (54.0 F)
191210.0 C (50.0 F)
191310.0 C (50.0 F)
19149.4 C (48.9 F)
19158.9 C (48.0 F)
191611.7 C (53.1 F)
19179.4 C (48.9 F)
191811.1 C (52.0 F)
19199.4 C (48.9 F)
192011.7 C (53.1 F)
192110.6 C (51.1 F)
192213.3 C (55.9 F)
192310.6 C (51.1 F)
192410.6 C (51.1 F)
192512.2 C (54.0 F)
192610.6 C (51.1 F)
19279.4 C (48.9 F)
192813.3 C (55.9 F)
19298.9 C (48.0 F)
19308.9 C (48.0 F)
193111.7 C (53.1 F)
193211.1 C (52.0 F)
193310.0 C (50.0 F)
193411.7 C (53.1 F)
193510.6 C (51.1 F)
19367.8 C (46.0 F)
19379.4 C (48.9 F)
193812.2 C (54.0 F)
193912.2 C (54.0 F)
19409.4 C (48.9 F)
19417.8 C (46.0 F)
194211.1 C (52.0 F)
194310.0 C (50.0 F)
194411.7 C (53.1 F)
194511.1 C (52.0 F)
194611.1 C (52.0 F)
19479.4 C (48.9 F)
19488.9 C (48.0 F)
194910.0 C (50.0 F)
195012.8 C (55.0 F)
195111.1 C (52.0 F)
195210.0 C (50.0 F)
195311.1 C (52.0 F)
195410.0 C (50.0 F)
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
2003n/a
2004n/a
2005n/a
2006n/a
2007n/a
2008n/a
2009n/a
2010n/a
2011n/a
2012n/a
2013n/a
2014n/a
2015n/a
2016n/a
2017n/a
2018n/a
2019n/a
2020n/a
2021n/a
2022n/a
2023n/a
2024n/a
2025n/a
2026n/a

Wettest day (Rx1day)

Wettest day (Rx1day) at Koloa 936 by year The wettest day of the year at Koloa 936, 1905 to 2026. The record is 261.6 mm (10.3 in) in 1921, marked on the chart; the median year is 90.7 mm (3.6 in). 0100200300192019401960198020002020Record: 261.6 mm (10.3 in) in 1921
The wettest day of the year at Koloa 936, 1905 to 2026. The record is 261.6 mm (10.3 in) in 1921, marked on the chart; the median year is 90.7 mm (3.6 in).
Wettest day (Rx1day) at Koloa 936 by year
YearWettest day (Rx1day)
1905158.8 mm (6.3 in)
190659.9 mm (2.4 in)
1907203.2 mm (8.0 in)
1908102.4 mm (4.0 in)
1909152.4 mm (6.0 in)
1910200.9 mm (7.9 in)
191186.6 mm (3.4 in)
191228.2 mm (1.1 in)
1913118.9 mm (4.7 in)
1914152.9 mm (6.0 in)
1915109.2 mm (4.3 in)
191682.0 mm (3.2 in)
1917101.6 mm (4.0 in)
1918132.1 mm (5.2 in)
191990.7 mm (3.6 in)
1920102.4 mm (4.0 in)
1921261.6 mm (10.3 in)
192277.2 mm (3.0 in)
1923192.3 mm (7.6 in)
192458.4 mm (2.3 in)
192550.8 mm (2.0 in)
192632.3 mm (1.3 in)
1927113.3 mm (4.5 in)
1928114.3 mm (4.5 in)
192995.8 mm (3.8 in)
1930112.5 mm (4.4 in)
193189.4 mm (3.5 in)
1932109.2 mm (4.3 in)
1933129.5 mm (5.1 in)
193489.4 mm (3.5 in)
1935134.6 mm (5.3 in)
193678.7 mm (3.1 in)
193782.6 mm (3.3 in)
1938158.8 mm (6.3 in)
193994.2 mm (3.7 in)
1940113.5 mm (4.5 in)
194131.8 mm (1.3 in)
1942147.8 mm (5.8 in)
194361.0 mm (2.4 in)
1944250.2 mm (9.9 in)
194595.0 mm (3.7 in)
1946163.8 mm (6.4 in)
194757.9 mm (2.3 in)
194880.3 mm (3.2 in)
1949180.8 mm (7.1 in)
195063.5 mm (2.5 in)
195165.0 mm (2.6 in)
195289.4 mm (3.5 in)
195345.7 mm (1.8 in)
195459.9 mm (2.4 in)
1955199.4 mm (7.9 in)
195684.1 mm (3.3 in)
1957193.0 mm (7.6 in)
195879.2 mm (3.1 in)
195970.6 mm (2.8 in)
196096.0 mm (3.8 in)
1961118.4 mm (4.7 in)
196287.9 mm (3.5 in)
196398.8 mm (3.9 in)
196459.4 mm (2.3 in)
1965109.2 mm (4.3 in)
196685.1 mm (3.4 in)
196790.7 mm (3.6 in)
1968130.8 mm (5.1 in)
196983.8 mm (3.3 in)
197041.9 mm (1.6 in)
197185.3 mm (3.4 in)
197272.4 mm (2.9 in)
1973116.3 mm (4.6 in)
1974101.6 mm (4.0 in)
197559.7 mm (2.4 in)
1976105.4 mm (4.1 in)
197753.3 mm (2.1 in)
1978160.0 mm (6.3 in)
197933.0 mm (1.3 in)
198061.7 mm (2.4 in)
198177.0 mm (3.0 in)
1982226.3 mm (8.9 in)
198337.3 mm (1.5 in)
198439.4 mm (1.6 in)
198552.1 mm (2.1 in)
198649.3 mm (1.9 in)
198799.6 mm (3.9 in)
198851.6 mm (2.0 in)
1989125.2 mm (4.9 in)
1990118.1 mm (4.6 in)
199169.9 mm (2.8 in)
199274.7 mm (2.9 in)
199374.7 mm (2.9 in)
199490.4 mm (3.6 in)
199563.5 mm (2.5 in)
199657.2 mm (2.3 in)
199738.9 mm (1.5 in)
199863.0 mm (2.5 in)
199933.3 mm (1.3 in)
200038.6 mm (1.5 in)
200144.2 mm (1.7 in)
2002100.3 mm (3.9 in)
200350.0 mm (2.0 in)
200492.7 mm (3.6 in)
200557.2 mm (2.3 in)
2006151.1 mm (5.9 in)
200780.3 mm (3.2 in)
2008137.2 mm (5.4 in)
200956.4 mm (2.2 in)
201074.9 mm (2.9 in)
2011115.6 mm (4.6 in)
2012150.4 mm (5.9 in)
201397.5 mm (3.8 in)
201498.0 mm (3.9 in)
201525.7 mm (1.0 in)
201626.7 mm (1.1 in)
2017102.6 mm (4.0 in)
2018153.7 mm (6.1 in)
2019105.7 mm (4.2 in)
202093.5 mm (3.7 in)
2021151.1 mm (5.9 in)
2022215.9 mm (8.5 in)
202397.0 mm (3.8 in)
2024247.7 mm (9.8 in)
202547.5 mm (1.9 in)
202699.1 mm (3.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Koloa 936 by year The wettest five days of the year at Koloa 936, 1905 to 2026. The record is 463.6 mm (18.3 in) in 1921, marked on the chart; the median year is 107.0 mm (4.2 in). 0200400600192019401960198020002020Record: 463.6 mm (18.3 in) in 1921
The wettest five days of the year at Koloa 936, 1905 to 2026. The record is 463.6 mm (18.3 in) in 1921, marked on the chart; the median year is 107.0 mm (4.2 in).
Wettest five days (Rx5day) at Koloa 936 by year
YearWettest five days (Rx5day)
1905185.0 mm (7.3 in)
190692.2 mm (3.6 in)
1907330.5 mm (13.0 in)
1908176.0 mm (6.9 in)
1909328.6 mm (12.9 in)
1910246.1 mm (9.7 in)
1911133.6 mm (5.3 in)
191266.0 mm (2.6 in)
1913133.2 mm (5.2 in)
1914319.2 mm (12.6 in)
1915188.0 mm (7.4 in)
1916161.8 mm (6.4 in)
1917142.5 mm (5.6 in)
1918190.2 mm (7.5 in)
1919147.1 mm (5.8 in)
1920256.8 mm (10.1 in)
1921463.6 mm (18.3 in)
1922175.5 mm (6.9 in)
1923258.6 mm (10.2 in)
192497.0 mm (3.8 in)
1925163.4 mm (6.4 in)
192677.1 mm (3.0 in)
1927271.3 mm (10.7 in)
1928228.8 mm (9.0 in)
1929134.9 mm (5.3 in)
1930147.1 mm (5.8 in)
1931104.6 mm (4.1 in)
1932147.4 mm (5.8 in)
1933240.7 mm (9.5 in)
1934118.7 mm (4.7 in)
1935222.8 mm (8.8 in)
1936151.5 mm (6.0 in)
1937138.2 mm (5.4 in)
1938180.1 mm (7.1 in)
1939205.4 mm (8.1 in)
1940155.1 mm (6.1 in)
194178.2 mm (3.1 in)
1942244.3 mm (9.6 in)
1943149.1 mm (5.9 in)
1944293.1 mm (11.5 in)
1945152.9 mm (6.0 in)
1946299.6 mm (11.8 in)
1947111.2 mm (4.4 in)
194896.8 mm (3.8 in)
1949300.3 mm (11.8 in)
1950162.6 mm (6.4 in)
195197.4 mm (3.8 in)
195296.5 mm (3.8 in)
195371.3 mm (2.8 in)
195470.5 mm (2.8 in)
1955247.2 mm (9.7 in)
1956102.9 mm (4.1 in)
1957250.0 mm (9.8 in)
195873.9 mm (2.9 in)
195941.9 mm (1.6 in)
196026.7 mm (1.1 in)
1961100.4 mm (4.0 in)
196255.4 mm (2.2 in)
1963108.0 mm (4.3 in)
196431.2 mm (1.2 in)
196562.7 mm (2.5 in)
196621.8 mm (0.9 in)
196727.4 mm (1.1 in)
1968105.9 mm (4.2 in)
196998.3 mm (3.9 in)
197018.8 mm (0.7 in)
197138.5 mm (1.5 in)
197223.4 mm (0.9 in)
197313.0 mm (0.5 in)
197469.5 mm (2.7 in)
197599.0 mm (3.9 in)
197622.1 mm (0.9 in)
197753.0 mm (2.1 in)
197837.9 mm (1.5 in)
197916.3 mm (0.6 in)
19808.7 mm (0.34 in)
1981112.1 mm (4.4 in)
1982294.3 mm (11.6 in)
1983116.6 mm (4.6 in)
198439.2 mm (1.5 in)
198534.8 mm (1.4 in)
198651.4 mm (2.0 in)
198790.5 mm (3.6 in)
198859.0 mm (2.3 in)
198939.4 mm (1.6 in)
199024.9 mm (1.0 in)
1991110.5 mm (4.4 in)
199275.2 mm (3.0 in)
199314.8 mm (0.6 in)
199443.2 mm (1.7 in)
199583.8 mm (3.3 in)
19960.0 mm (0.00 in)
199748.8 mm (1.9 in)
199812.7 mm (0.5 in)
199918.1 mm (0.7 in)
200036.4 mm (1.4 in)
200159.5 mm (2.3 in)
200248.7 mm (1.9 in)
200354.1 mm (2.1 in)
200492.7 mm (3.6 in)
20057.4 mm (0.29 in)
200631.0 mm (1.2 in)
2007144.3 mm (5.7 in)
2008142.8 mm (5.6 in)
200928.5 mm (1.1 in)
201071.8 mm (2.8 in)
2011133.3 mm (5.2 in)
2012192.1 mm (7.6 in)
2013114.0 mm (4.5 in)
2014103.6 mm (4.1 in)
201525.7 mm (1.0 in)
201651.1 mm (2.0 in)
2017131.8 mm (5.2 in)
2018222.0 mm (8.7 in)
2019145.0 mm (5.7 in)
2020185.2 mm (7.3 in)
2021253.5 mm (10.0 in)
2022218.0 mm (8.6 in)
2023165.3 mm (6.5 in)
2024297.5 mm (11.7 in)
2025121.9 mm (4.8 in)
2026147.8 mm (5.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Koloa 936 by year The longest dry spell of the year at Koloa 936, 1905 to 2026. The record is 29 days in 2000, marked on the chart; the median year is 11 days. 0102030192019401960198020002020Record: 29 days in 2000
The longest dry spell of the year at Koloa 936, 1905 to 2026. The record is 29 days in 2000, marked on the chart; the median year is 11 days.
Longest dry spell (CDD) at Koloa 936 by year
YearLongest dry spell (CDD)
190524 days
190612 days
19078 days
190817 days
190914 days
191013 days
191112 days
19129 days
19139 days
191411 days
191513 days
191610 days
191710 days
19188 days
191920 days
192012 days
192113 days
192215 days
192310 days
192416 days
192516 days
192614 days
192711 days
192812 days
192914 days
193012 days
193111 days
19329 days
193312 days
193412 days
193519 days
193612 days
193711 days
193814 days
193915 days
194011 days
194115 days
194218 days
19438 days
194410 days
194512 days
194610 days
194715 days
194813 days
19498 days
195012 days
195110 days
195217 days
19537 days
195410 days
195517 days
19568 days
195713 days
195819 days
195911 days
19608 days
196111 days
19628 days
19638 days
19648 days
196516 days
196610 days
19674 days
19688 days
196915 days
197016 days
19719 days
197210 days
197310 days
19747 days
197510 days
19767 days
197710 days
197813 days
197918 days
19809 days
198111 days
19824 days
19838 days
19847 days
198521 days
198616 days
198710 days
19889 days
198911 days
199016 days
19918 days
199213 days
199310 days
19948 days
199515 days
19967 days
199711 days
199811 days
19999 days
200029 days
200113 days
200210 days
200311 days
200416 days
200518 days
200611 days
20077 days
200816 days
200924 days
201015 days
201110 days
20125 days
20135 days
20145 days
20155 days
20165 days
20175 days
20185 days
20195 days
20204 days
20215 days
20225 days
20235 days
20245 days
20255 days
20265 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.

Rainfall Return Levels

44 years, 1905 to 1949

A day with at least 105.1 mm (4.1 in) of rain is expected about once in 2 years. A day with at least 286.8 mm (11.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Koloa 936: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years105.1 mm (4.1 in)
5 years153.9 mm (6.1 in)
10 years186.1 mm (7.3 in)
25 years226.8 mm (8.9 in)
50 years256.9 mm (10.1 in)Longer than the 44 years of record
100 years286.8 mm (11.3 in)Longer than the 44 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 44 years of values from 1905 to 1949.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 261.6 mm (10.3 in) in 1921; 250.2 mm (9.9 in) in 1944; 203.2 mm (8.0 in) in 1907.

Download the Data

  • Data for Koloa 936 standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Koloa 936 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-13).