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Built 2026-10-17 (17 October 2026)

Koloa Mauka 994 Weather Records (USC00514750)

Record envelope, standing records and threshold days for Koloa Mauka 994 (USC00514750), Hawaii, United States, with 85 years of record.

Key Facts for Koloa Mauka 994

  • Koloa Mauka 994 (USC00514750) is a weather station in Hawaii, United States at 21.95 latitude and -159.47 longitude, 195 m (640 ft) above sea level.
  • The station reports from 1942 to 2026, 85 years of record.
  • 0 records set at Koloa Mauka 994 still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Koloa Mauka 994 set a daily record precipitation of 42.7 mm (1.7 in) on 12 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, 21.95 latitude, -159.47 longitude.
  • Elevation: 195 m (640 ft).
  • Period of record: 1942 to 2026, 85 years.
  • Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Koloa Mauka 994, with 2026 drawn through them The band shows the record high and record low for each calendar day at Koloa Mauka 994. 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 Koloa Mauka 994. 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 Mauka 994, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
Febn/an/an/an/a
Marn/an/an/an/a
Aprn/an/an/an/a
Mayn/an/an/an/a
Junn/an/an/an/a
Juln/an/an/an/a
Augn/an/an/an/a
Sepn/an/an/an/a
Octn/an/an/an/a
Novn/an/an/an/a
Decn/an/an/an/a

Which Years Hold Standing Records

0 standing records
Standing records at Koloa Mauka 994 by the year they were set 0 records at Koloa Mauka 994 still stand. 00000000000
0 records at Koloa Mauka 994 still stand.
Standing records at Koloa Mauka 994 by the year they were set
Year setStanding records

All-Time Record Progression

3 new records
When Koloa Mauka 994 set new all-time records 3 all-time records were set at Koloa Mauka 994 between 7 November 1988 and 5 March 2012. Each dot is a new record. Record daily precipitation7 November 1988: Record daily precipitation 297.2 mm (11.7 in)27 February 2012: Record daily precipitation 330.7 mm (13.0 in)5 March 2012: Record daily precipitation 522.0 mm (20.6 in)19901995200020052010
3 all-time records were set at Koloa Mauka 994 between 7 November 1988 and 5 March 2012. Each dot is a new record.
When Koloa Mauka 994 set new all-time records
DateKindDetail
1988-11-07Record daily precipitationRecord daily precipitation 297.2 mm (11.7 in)
2012-02-27Record daily precipitationRecord daily precipitation 330.7 mm (13.0 in)
2012-03-05Record daily precipitationRecord daily precipitation 522.0 mm (20.6 in)

Wettest Day of Each Month

Mar: 522.0 mm (20.6 in)
Record daily precipitation for each month at Koloa Mauka 994 The wettest day on record for each calendar month at Koloa Mauka 994. The most was 522.0 mm (20.6 in) on 5 March 2012. 0200400600 Jan: 283.2 mm (11.1 in), 3 January 2022 Jan Feb: 330.7 mm (13.0 in), 27 February 2012 Feb Mar: 522.0 mm (20.6 in), 5 March 2012 Mar Apr: 215.9 mm (8.5 in), 16 April 2018 Apr May: 134.6 mm (5.3 in), 27 May 2014 May Jun: 81.3 mm (3.2 in), 20 June 2023 Jun Jul: 167.6 mm (6.6 in), 1 July 2019 Jul Aug: 182.9 mm (7.2 in), 27 August 2018 Aug Sep: 103.1 mm (4.1 in), 16 September 1942 Sep Oct: 147.3 mm (5.8 in), 1 October 2018 Oct Nov: 297.2 mm (11.7 in), 7 November 1988 Nov Dec: 157.5 mm (6.2 in), 6 December 1961 Dec
The wettest day on record for each calendar month at Koloa Mauka 994. The most was 522.0 mm (20.6 in) on 5 March 2012.
Record daily precipitation for each month at Koloa Mauka 994
MonthRecord daily precipitation (mm)Date
Jan283.2 mm (11.1 in)3 January 2022
Feb330.7 mm (13.0 in)27 February 2012
Mar522.0 mm (20.6 in)5 March 2012
Apr215.9 mm (8.5 in)16 April 2018
May134.6 mm (5.3 in)27 May 2014
Jun81.3 mm (3.2 in)20 June 2023
Jul167.6 mm (6.6 in)1 July 2019
Aug182.9 mm (7.2 in)27 August 2018
Sep103.1 mm (4.1 in)16 September 1942
Oct147.3 mm (5.8 in)1 October 2018
Nov297.2 mm (11.7 in)7 November 1988
Dec157.5 mm (6.2 in)6 December 1961

Latest Records

20
Latest records at Koloa Mauka 994
DateStationRecordValueBeat old record byOld record stoodSignificance
12 October 2026Koloa Mauka 994, USdaily rain (Provisional)42.7 mm (1.7 in)2.6 mm (0.10 in)60 years27 of 100 (Routine)
5 October 2026Koloa Mauka 994, USdaily rain (Provisional)142.2 mm (5.6 in)97.7 mm (3.8 in)39 years59 of 100 (Notable)
21 September 2026Koloa Mauka 994, USdaily rain (Provisional)40.6 mm (1.6 in)1.2 mm (0.05 in)5 years9 of 100 (Routine)
8 September 2026Koloa Mauka 994, USmonthly rain (Provisional)190.5 mm (7.5 in)87.4 mm (3.4 in)83 years83 of 100 (Exceptional)
31 August 2026Koloa Mauka 994, USdaily rain (Provisional)21.3 mm (0.8 in)2.0 mm (0.08 in)48 years20 of 100 (Routine)
17 August 2026Koloa Mauka 994, USdaily rain71.1 mm (2.8 in)17.8 mm (0.7 in)76 years39 of 100 (Notable)
7 July 2026Koloa Mauka 994, USdaily rain53.1 mm (2.1 in)6.6 mm (0.26 in)0 years11 of 100 (Routine)
29 June 2026Koloa Mauka 994, USdaily rain30.2 mm (1.2 in)5.3 mm (0.21 in)68 years32 of 100 (Routine)
15 June 2026Koloa Mauka 994, USdaily rain (Tie)23.4 mm (0.9 in)tie5 years2 of 100 (Routine)
18 May 2026Koloa Mauka 994, USdaily rain38.1 mm (1.5 in)2.8 mm (0.11 in)5 years10 of 100 (Routine)
11 May 2026Koloa Mauka 994, USdaily rain79.8 mm (3.1 in)43.0 mm (1.7 in)5 years33 of 100 (Routine)
23 March 2026Koloa Mauka 994, USdaily rain85.1 mm (3.4 in)31.8 mm (1.3 in)11 years19 of 100 (Routine)
16 February 2026Koloa Mauka 994, USdaily rain109.2 mm (4.3 in)72.9 mm (2.9 in)59 years44 of 100 (Notable)
9 February 2026Koloa Mauka 994, USdaily rain99.1 mm (3.9 in)63.0 mm (2.5 in)76 years48 of 100 (Notable)
5 January 2026Koloa Mauka 994, USdaily rain104.1 mm (4.1 in)41.6 mm (1.6 in)38 years34 of 100 (Routine)
29 December 2025Koloa Mauka 994, USdaily rain67.3 mm (2.6 in)36.8 mm (1.4 in)83 years47 of 100 (Notable)
22 December 2025Koloa Mauka 994, USdaily rain144.8 mm (5.7 in)89.9 mm (3.5 in)79 years68 of 100 (Major)
15 December 2025Koloa Mauka 994, USdaily rain73.4 mm (2.9 in)6.9 mm (0.27 in)83 years34 of 100 (Routine)
24 November 2025Koloa Mauka 994, USdaily rain68.6 mm (2.7 in)57.9 mm (2.3 in)11 years30 of 100 (Routine)
20 October 2025Koloa Mauka 994, USdaily rain73.7 mm (2.9 in)49.6 mm (2.0 in)64 years52 of 100 (Notable)

Extremes by Year

1942 to 2026
Yearly extremes at Koloa Mauka 994: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)522.0 mm (20.6 in)2012100.9 mm (4.0 in)74
Wettest five days (Rx5day)399.3 mm (15.7 in)194956.5 mm (2.2 in)48
Longest dry spell (CDD)21 days195010 days59

Wettest day (Rx1day)

Wettest day (Rx1day) at Koloa Mauka 994 by year The wettest day of the year at Koloa Mauka 994, 1942 to 2026. The record is 522.0 mm (20.6 in) in 2012, marked on the chart; the median year is 100.9 mm (4.0 in). 02004006001960198020002020Record: 522.0 mm (20.6 in) in 2012
The wettest day of the year at Koloa Mauka 994, 1942 to 2026. The record is 522.0 mm (20.6 in) in 2012, marked on the chart; the median year is 100.9 mm (4.0 in).
Wettest day (Rx1day) at Koloa Mauka 994 by year
YearWettest day (Rx1day)
1942103.1 mm (4.1 in)
194392.2 mm (3.6 in)
1944253.0 mm (10.0 in)
1945104.4 mm (4.1 in)
1946126.5 mm (5.0 in)
1947244.6 mm (9.6 in)
1948143.0 mm (5.6 in)
1949219.5 mm (8.6 in)
195095.3 mm (3.8 in)
1951208.3 mm (8.2 in)
195273.7 mm (2.9 in)
195360.5 mm (2.4 in)
195479.8 mm (3.1 in)
1955174.5 mm (6.9 in)
195695.3 mm (3.8 in)
195754.6 mm (2.1 in)
1958123.2 mm (4.9 in)
1959175.3 mm (6.9 in)
196092.7 mm (3.6 in)
1961157.5 mm (6.2 in)
196286.4 mm (3.4 in)
1963153.7 mm (6.1 in)
196480.5 mm (3.2 in)
1965118.9 mm (4.7 in)
196698.6 mm (3.9 in)
196778.5 mm (3.1 in)
1968117.6 mm (4.6 in)
1969120.1 mm (4.7 in)
197084.3 mm (3.3 in)
197158.2 mm (2.3 in)
197271.4 mm (2.8 in)
1973127.3 mm (5.0 in)
1974n/a
1975n/a
19760.3 mm (0.01 in)
197752.6 mm (2.1 in)
1978121.2 mm (4.8 in)
197923.6 mm (0.9 in)
198026.9 mm (1.1 in)
19810.0 mm (0.00 in)
198259.7 mm (2.4 in)
198358.7 mm (2.3 in)
1984140.2 mm (5.5 in)
1985195.1 mm (7.7 in)
1986163.6 mm (6.4 in)
198783.3 mm (3.3 in)
1988297.2 mm (11.7 in)
1989231.1 mm (9.1 in)
199087.6 mm (3.4 in)
19910.0 mm (0.00 in)
19920.0 mm (0.00 in)
19930.0 mm (0.00 in)
1994n/a
1995n/a
1996n/a
19970.0 mm (0.00 in)
19980.0 mm (0.00 in)
1999n/a
20000.0 mm (0.00 in)
2001n/a
20020.0 mm (0.00 in)
20030.0 mm (0.00 in)
2004n/a
200537.3 mm (1.5 in)
2006n/a
200784.6 mm (3.3 in)
200856.6 mm (2.2 in)
2009n/a
2010n/a
201191.4 mm (3.6 in)
2012522.0 mm (20.6 in)
2013149.9 mm (5.9 in)
2014231.1 mm (9.1 in)
201553.3 mm (2.1 in)
2016115.6 mm (4.6 in)
2017162.6 mm (6.4 in)
2018215.9 mm (8.5 in)
2019167.6 mm (6.6 in)
2020191.3 mm (7.5 in)
2021182.9 mm (7.2 in)
2022283.2 mm (11.1 in)
2023190.5 mm (7.5 in)
2024151.1 mm (5.9 in)
2025144.8 mm (5.7 in)
2026190.5 mm (7.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Koloa Mauka 994 by year The wettest five days of the year at Koloa Mauka 994, 1942 to 2026. The record is 399.3 mm (15.7 in) in 1949, marked on the chart; the median year is 56.5 mm (2.2 in). 01002003004001960198020002020Record: 399.3 mm (15.7 in) in 1949
The wettest five days of the year at Koloa Mauka 994, 1942 to 2026. The record is 399.3 mm (15.7 in) in 1949, marked on the chart; the median year is 56.5 mm (2.2 in).
Wettest five days (Rx5day) at Koloa Mauka 994 by year
YearWettest five days (Rx5day)
1942248.7 mm (9.8 in)
1943294.7 mm (11.6 in)
1944311.4 mm (12.3 in)
1945233.2 mm (9.2 in)
1946251.5 mm (9.9 in)
1947362.2 mm (14.3 in)
1948158.7 mm (6.2 in)
1949399.3 mm (15.7 in)
1950120.3 mm (4.7 in)
1951243.3 mm (9.6 in)
1952112.0 mm (4.4 in)
195356.6 mm (2.2 in)
195486.4 mm (3.4 in)
1955191.3 mm (7.5 in)
1956121.7 mm (4.8 in)
195790.6 mm (3.6 in)
195854.1 mm (2.1 in)
195957.1 mm (2.2 in)
196039.4 mm (1.6 in)
196158.9 mm (2.3 in)
1962186.0 mm (7.3 in)
196388.9 mm (3.5 in)
196458.9 mm (2.3 in)
196559.4 mm (2.3 in)
196640.2 mm (1.6 in)
196732.5 mm (1.3 in)
1968128.3 mm (5.1 in)
1969148.5 mm (5.8 in)
197021.3 mm (0.8 in)
19716.3 mm (0.25 in)
197231.0 mm (1.2 in)
19738.1 mm (0.32 in)
1974n/a
1975n/a
1976n/a
197752.6 mm (2.1 in)
1978n/a
197914.7 mm (0.6 in)
19800.0 mm (0.00 in)
1981n/a
1982n/a
198356.4 mm (2.2 in)
198413.2 mm (0.5 in)
198512.2 mm (0.5 in)
1986n/a
1987n/a
1988n/a
1989n/a
19900.0 mm (0.00 in)
1991n/a
19920.0 mm (0.00 in)
19930.0 mm (0.00 in)
1994n/a
1995n/a
1996n/a
19970.0 mm (0.00 in)
19980.0 mm (0.00 in)
1999n/a
20000.0 mm (0.00 in)
2001n/a
20020.0 mm (0.00 in)
2003n/a
2004n/a
20050.0 mm (0.00 in)
2006n/a
200722.3 mm (0.9 in)
20082.8 mm (0.11 in)
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

Longest dry spell (CDD)

Longest dry spell (CDD) at Koloa Mauka 994 by year The longest dry spell of the year at Koloa Mauka 994, 1942 to 2026. The record is 21 days in 1950, marked on the chart; the median year is 10 days. 05101520251960198020002020Record: 21 days in 1950
The longest dry spell of the year at Koloa Mauka 994, 1942 to 2026. The record is 21 days in 1950, marked on the chart; the median year is 10 days.
Longest dry spell (CDD) at Koloa Mauka 994 by year
YearLongest dry spell (CDD)
19426 days
194312 days
194414 days
194518 days
19467 days
194710 days
194813 days
194915 days
195021 days
195115 days
195215 days
195316 days
195412 days
195514 days
195614 days
195713 days
195819 days
195914 days
196012 days
196111 days
19628 days
196310 days
19648 days
196515 days
196610 days
196711 days
196813 days
196910 days
197011 days
19714 days
19727 days
197310 days
1974n/a
1975n/a
19762 days
19777 days
19782 days
19797 days
19804 days
19811 day
19821 day
198320 days
19847 days
198514 days
19864 days
1987n/a
1988n/a
1989n/a
19907 days
19914 days
19927 days
19937 days
1994n/a
1995n/a
1996n/a
19977 days
19987 days
1999n/a
200014 days
2001n/a
20027 days
20032 days
2004n/a
20058 days
2006n/a
20073 days
200810 days
2009n/a
2010n/a
20111 day
2012n/a
2013n/a
2014n/a
20151 day
2016n/a
20171 day
2018n/a
2019n/a
2020n/a
2021n/a
2022n/a
2023n/a
2024n/a
20251 day
2026n/a

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 Koloa Mauka 994 standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Koloa Mauka 994 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-16).