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Built 2026-10-15 (15 October 2026)

Waihee 837.5 Weather Records (USC00519281)

Record envelope, standing records and threshold days for Waihee 837.5 (USC00519281), Hawaii, United States, with 41 years of record.

Key Facts for Waihee 837.5

  • Waihee 837.5 (USC00519281) is a weather station in Hawaii, United States at 21.45 latitude and -157.85 longitude, 33 m (108 ft) above sea level.
  • The station reports from 1986 to 2026, 41 years of record.
  • 1,464 records set at Waihee 837.5 still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Waihee 837.5 set a daily record precipitation of 48.5 mm (1.9 in) on 6 September 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, 21.45 latitude, -157.85 longitude.
  • Elevation: 33 m (108 ft).
  • Period of record: 1986 to 2026, 41 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

14 days at or beyond a record
Daily record high and record low at Waihee 837.5, with 2026 drawn through them The band shows the record high and record low for each calendar day at Waihee 837.5. The lines show the 2026 daily maximum and minimum. 14 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 101520253035 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Waihee 837.5. The lines show the 2026 daily maximum and minimum. 14 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Waihee 837.5, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan29.4 C (84.9 F)12.2 C (54.0 F)27.8 C (82.0 F)15.6 C (60.1 F)
Feb30.0 C (86.0 F)10.6 C (51.1 F)28.9 C (84.0 F)13.9 C (57.0 F)
Mar30.6 C (87.1 F)11.1 C (52.0 F)28.9 C (84.0 F)11.1 C (52.0 F)
Apr30.6 C (87.1 F)12.2 C (54.0 F)27.8 C (82.0 F)14.4 C (57.9 F)
May30.6 C (87.1 F)14.4 C (57.9 F)28.3 C (82.9 F)16.1 C (61.0 F)
Jun30.0 C (86.0 F)16.1 C (61.0 F)n/an/a
Jul32.2 C (90.0 F)18.3 C (64.9 F)n/an/a
Aug32.8 C (91.0 F)15.0 C (59.0 F)31.1 C (88.0 F)21.1 C (70.0 F)
Sep33.3 C (91.9 F)18.3 C (64.9 F)30.6 C (87.1 F)20.6 C (69.1 F)
Oct32.2 C (90.0 F)15.6 C (60.1 F)30.0 C (86.0 F)20.0 C (68.0 F)
Nov31.7 C (89.1 F)15.0 C (59.0 F)n/an/a
Dec30.6 C (87.1 F)12.8 C (55.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Waihee 837.5 by the year they were set 1,464 records at Waihee 837.5 still stand. 2015 holds the most, with 133. 0501001502008: 562009: 1132010: 722011: 712012: 822013: 772014: 942015: 1332016: 1132017: 772018: 1042019: 1162020: 572021: 662022: 802023: 452024: 482025: 462026: 142008201020122014201620182020202220242026
1,464 records at Waihee 837.5 still stand. 2015 holds the most, with 133.
Standing records at Waihee 837.5 by the year they were set
Year setStanding records
200856
2009113
201072
201171
201282
201377
201494
2015133
2016113
201777
2018104
2019116
202057
202166
202280
202345
202448
202546
202614

Wettest Day of Each Month

Feb: 277.4 mm (10.9 in)
Record daily precipitation for each month at Waihee 837.5 The wettest day on record for each calendar month at Waihee 837.5. The most was 277.4 mm (10.9 in) on 15 February 1994. 0100200300 Jan: 223.8 mm (8.8 in), 13 January 2011 Jan Feb: 277.4 mm (10.9 in), 15 February 1994 Feb Mar: 267.5 mm (10.5 in), 14 March 2026 Mar Apr: 165.9 mm (6.5 in), 14 April 2020 Apr May: 182.6 mm (7.2 in), 6 May 2002 May Jun: 127.3 mm (5.0 in), 4 June 2011 Jun Jul: 150.9 mm (5.9 in), 23 July 1987 Jul Aug: 96.3 mm (3.8 in), 10 August 2013 Aug Sep: 229.6 mm (9.0 in), 10 September 2003 Sep Oct: 166.1 mm (6.5 in), 17 October 1991 Oct Nov: 250.7 mm (9.9 in), 4 November 2007 Nov Dec: 240.8 mm (9.5 in), 7 December 2021 Dec
The wettest day on record for each calendar month at Waihee 837.5. The most was 277.4 mm (10.9 in) on 15 February 1994.
Record daily precipitation for each month at Waihee 837.5
MonthRecord daily precipitation (mm)Date
Jan223.8 mm (8.8 in)13 January 2011
Feb277.4 mm (10.9 in)15 February 1994
Mar267.5 mm (10.5 in)14 March 2026
Apr165.9 mm (6.5 in)14 April 2020
May182.6 mm (7.2 in)6 May 2002
Jun127.3 mm (5.0 in)4 June 2011
Jul150.9 mm (5.9 in)23 July 1987
Aug96.3 mm (3.8 in)10 August 2013
Sep229.6 mm (9.0 in)10 September 2003
Oct166.1 mm (6.5 in)17 October 1991
Nov250.7 mm (9.9 in)4 November 2007
Dec240.8 mm (9.5 in)7 December 2021

Period of Record Coverage

2008 to 2026
Days with data per year at Waihee 837.5 19 years of record at Waihee 837.5, 2008 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 2008, 2025, 2026. 2008: 212 of 366 days2009: 365 of 365 days2010: 364 of 365 days2011: 361 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 364 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 364 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 356 of 365 days2023: 349 of 365 days2024: 366 of 366 days2025: 300 of 365 days2026: 181 of 365 days2010201520202025
19 years of record at Waihee 837.5, 2008 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 2008, 2025, 2026.
Days with data per year at Waihee 837.5
YearDays with dataShare of yearComplete
200821258%No
2009365100%Yes
2010364100%Yes
201136199%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015364100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019364100%Yes
2020366100%Yes
2021365100%Yes
202235698%Yes
202334996%Yes
2024366100%Yes
202530082%No
202618150%No

Latest Records

20
Latest records at Waihee 837.5
DateStationRecordValueBeat old record byOld record stoodSignificance
6 September 2026Waihee 837.5, USdaily rain (Provisional)48.5 mm (1.9 in)16.5 mm (0.6 in)29 years22 of 100 (Routine)
17 August 2026Waihee 837.5, USdaily rain (Provisional)61.0 mm (2.4 in)46.5 mm (1.8 in)28 years52 of 100 (Notable)
16 August 2026Waihee 837.5, USdaily rain (Provisional)61.0 mm (2.4 in)41.9 mm (1.6 in)28 years49 of 100 (Notable)
16 May 2026Waihee 837.5, USdaily rain121.7 mm (4.8 in)56.2 mm (2.2 in)27 years52 of 100 (Notable)
11 April 2026Waihee 837.5, USdaily rain80.5 mm (3.2 in)37.8 mm (1.5 in)16 years36 of 100 (Notable)
20 March 2026Waihee 837.5, USdaily rain185.9 mm (7.3 in)177.5 mm (7.0 in)28 years52 of 100 (Notable)
14 March 2026Waihee 837.5, USmonthly rain267.5 mm (10.5 in)33.6 mm (1.3 in)5 years30 of 100 (Routine)
13 March 2026Waihee 837.5, USdaily rain71.1 mm (2.8 in)45.7 mm (1.8 in)4 years25 of 100 (Routine)
12 March 2026Waihee 837.5, USdaily rain46.2 mm (1.8 in)1.0 mm (0.04 in)35 years14 of 100 (Routine)
22 February 2026Waihee 837.5, USdaily rain148.3 mm (5.8 in)101.3 mm (4.0 in)8 years46 of 100 (Notable)
10 February 2026Waihee 837.5, USdaily rain25.7 mm (1.0 in)9.2 mm (0.36 in)36 years18 of 100 (Routine)
9 February 2026Waihee 837.5, USdaily rain43.4 mm (1.7 in)14.4 mm (0.6 in)12 years12 of 100 (Routine)
4 January 2026Waihee 837.5, USdaily rain (Tie)20.8 mm (0.8 in)tie6 years1 of 100 (Routine)
15 December 2025Waihee 837.5, USdaily rain51.3 mm (2.0 in)29.7 mm (1.2 in)38 years31 of 100 (Routine)
8 October 2025Waihee 837.5, USdaily rain30.5 mm (1.2 in)3.6 mm (0.14 in)30 years15 of 100 (Routine)
1 September 2025Waihee 837.5, USdaily rain29.7 mm (1.2 in)22.1 mm (0.9 in)10 years21 of 100 (Routine)
2 July 2025Waihee 837.5, USdaily rain12.7 mm (0.5 in)3.6 mm (0.14 in)6 years9 of 100 (Routine)
30 April 2025Waihee 837.5, USdaily rain31.0 mm (1.2 in)4.6 mm (0.18 in)8 years9 of 100 (Routine)
29 April 2025Waihee 837.5, USdaily rain39.1 mm (1.5 in)7.9 mm (0.31 in)4 years10 of 100 (Routine)
19 April 2025Waihee 837.5, USdaily rain64.3 mm (2.5 in)1.1 mm (0.04 in)2 years4 of 100 (Routine)

Climate Trend

15 complete years, 2009 to 2024
Annual mean temperature at Waihee 837.5 as warming stripes, 2009 to 2024 One stripe for each of 15 complete years at Waihee 837.5, 2009 to 2024. Blue stripes are years cooler than the station's own mean of 23.7 C (74.7 F); red stripes are warmer. The coolest year was 2009, at 23.2 C (73.8 F), and the warmest was 2019, at 24.3 C (75.7 F). The strongest colour marks a difference of 0.6 C (1.1 F). 2009: 23.2 C, -0.5 C from the station mean2010: 23.3 C, -0.4 C from the station mean2011: 23.5 C, -0.2 C from the station mean2012: 23.5 C, -0.2 C from the station mean2013: 23.4 C, -0.3 C from the station mean2014: 23.5 C, -0.2 C from the station mean2015: 23.8 C, +0.1 C from the station mean2016: 23.7 C, -0.1 C from the station mean2017: 23.7 C, 0.0 C from the station mean2018: 24.2 C, +0.5 C from the station mean2019: 24.3 C, +0.5 C from the station mean2020: 24.2 C, +0.5 C from the station mean2021: 23.7 C, -0.1 C from the station mean2022: 23.8 C, +0.1 C from the station mean2024: 24.0 C, +0.3 C from the station mean20092012201420162018202020222024
One stripe for each of 15 complete years at Waihee 837.5, 2009 to 2024. Blue stripes are years cooler than the station's own mean of 23.7 C (74.7 F); red stripes are warmer. The coolest year was 2009, at 23.2 C (73.8 F), and the warmest was 2019, at 24.3 C (75.7 F). The strongest colour marks a difference of 0.6 C (1.1 F).
Annual mean temperature at Waihee 837.5 as warming stripes, 2009 to 2024
YearAnnual mean temperatureDifference from the station mean
200923.2 C-0.50 C
201023.3 C-0.41 C
201123.5 C-0.21 C
201223.5 C-0.19 C
201323.4 C-0.29 C
201423.5 C-0.20 C
201523.8 C+0.06 C
201623.7 C-0.08 C
201723.7 C+0.00 C
201824.2 C+0.51 C
201924.3 C+0.54 C
202024.2 C+0.48 C
202123.7 C-0.08 C
202223.8 C+0.11 C
202424.0 C+0.26 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1986 to 2026
Yearly extremes at Waihee 837.5: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)33.3 C (91.9 F)201531.1 C (88.0 F)19
Coldest night (TNn)10.6 C (51.1 F)201912.8 C (55.0 F)19
Wettest day (Rx1day)277.4 mm (10.9 in)1994125.2 mm (4.9 in)41
Wettest five days (Rx5day)482.1 mm (19.0 in)1994232.2 mm (9.1 in)41
Longest dry spell (CDD)21 days200311 days41

Hottest day (TXx)

Hottest day (TXx) at Waihee 837.5 by year The hottest day of the year at Waihee 837.5, 1986 to 2026. The record is 33.3 C (91.9 F) in 2015, marked on the chart; the median year is 31.1 C (88.0 F). 283032341990200020102020Record: 33.3 C (91.9 F) in 2015
The hottest day of the year at Waihee 837.5, 1986 to 2026. The record is 33.3 C (91.9 F) in 2015, marked on the chart; the median year is 31.1 C (88.0 F).
Hottest day (TXx) at Waihee 837.5 by year
YearHottest day (TXx)
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
200828.9 C (84.0 F)
200930.0 C (86.0 F)
201028.9 C (84.0 F)
201130.6 C (87.1 F)
201230.6 C (87.1 F)
201330.0 C (86.0 F)
201431.1 C (88.0 F)
201533.3 C (91.9 F)
201632.2 C (90.0 F)
201731.7 C (89.1 F)
201832.8 C (91.0 F)
201931.7 C (89.1 F)
202032.2 C (90.0 F)
202130.0 C (86.0 F)
202231.7 C (89.1 F)
202331.7 C (89.1 F)
202430.6 C (87.1 F)
202532.2 C (90.0 F)
202631.1 C (88.0 F)

Coldest night (TNn)

Coldest night (TNn) at Waihee 837.5 by year The coldest night of the year at Waihee 837.5, 1986 to 2026. The record is 10.6 C (51.1 F) in 2019, marked on the chart; the median year is 12.8 C (55.0 F). 10121416181990200020102020Record: 10.6 C (51.1 F) in 2019
The coldest night of the year at Waihee 837.5, 1986 to 2026. The record is 10.6 C (51.1 F) in 2019, marked on the chart; the median year is 12.8 C (55.0 F).
Coldest night (TNn) at Waihee 837.5 by year
YearColdest night (TNn)
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
200817.8 C (64.0 F)
200912.2 C (54.0 F)
201013.9 C (57.0 F)
201112.2 C (54.0 F)
201213.3 C (55.9 F)
201312.2 C (54.0 F)
201412.8 C (55.0 F)
201512.2 C (54.0 F)
201612.8 C (55.0 F)
201713.9 C (57.0 F)
201813.9 C (57.0 F)
201910.6 C (51.1 F)
202013.3 C (55.9 F)
202112.8 C (55.0 F)
202212.8 C (55.0 F)
202314.4 C (57.9 F)
202413.3 C (55.9 F)
202512.2 C (54.0 F)
202611.1 C (52.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Waihee 837.5 by year The wettest day of the year at Waihee 837.5, 1986 to 2026. The record is 277.4 mm (10.9 in) in 1994, marked on the chart; the median year is 125.2 mm (4.9 in). 01002003001990200020102020Record: 277.4 mm (10.9 in) in 1994
The wettest day of the year at Waihee 837.5, 1986 to 2026. The record is 277.4 mm (10.9 in) in 1994, marked on the chart; the median year is 125.2 mm (4.9 in).
Wettest day (Rx1day) at Waihee 837.5 by year
YearWettest day (Rx1day)
198625.1 mm (1.0 in)
1987150.9 mm (5.9 in)
1988182.4 mm (7.2 in)
1989137.7 mm (5.4 in)
1990105.4 mm (4.1 in)
1991166.1 mm (6.5 in)
1992102.6 mm (4.0 in)
199380.0 mm (3.1 in)
1994277.4 mm (10.9 in)
199566.5 mm (2.6 in)
199699.8 mm (3.9 in)
1997113.5 mm (4.5 in)
199834.8 mm (1.4 in)
199975.9 mm (3.0 in)
200063.0 mm (2.5 in)
2001125.2 mm (4.9 in)
2002182.6 mm (7.2 in)
2003229.6 mm (9.0 in)
2004195.1 mm (7.7 in)
2005163.8 mm (6.4 in)
2006172.2 mm (6.8 in)
2007250.7 mm (9.9 in)
2008103.1 mm (4.1 in)
2009107.7 mm (4.2 in)
2010101.3 mm (4.0 in)
2011223.8 mm (8.8 in)
2012158.5 mm (6.2 in)
2013140.7 mm (5.5 in)
2014101.6 mm (4.0 in)
201591.9 mm (3.6 in)
201689.7 mm (3.5 in)
201775.7 mm (3.0 in)
2018221.5 mm (8.7 in)
2019112.5 mm (4.4 in)
2020165.9 mm (6.5 in)
2021240.8 mm (9.5 in)
202288.9 mm (3.5 in)
2023122.9 mm (4.8 in)
2024137.4 mm (5.4 in)
2025142.7 mm (5.6 in)
2026267.5 mm (10.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Waihee 837.5 by year The wettest five days of the year at Waihee 837.5, 1986 to 2026. The record is 482.1 mm (19.0 in) in 1994, marked on the chart; the median year is 232.2 mm (9.1 in). 02004006001990200020102020Record: 482.1 mm (19.0 in) in 1994
The wettest five days of the year at Waihee 837.5, 1986 to 2026. The record is 482.1 mm (19.0 in) in 1994, marked on the chart; the median year is 232.2 mm (9.1 in).
Wettest five days (Rx5day) at Waihee 837.5 by year
YearWettest five days (Rx5day)
198628.6 mm (1.1 in)
1987247.9 mm (9.8 in)
1988271.8 mm (10.7 in)
1989281.5 mm (11.1 in)
1990230.1 mm (9.1 in)
1991280.9 mm (11.1 in)
1992203.4 mm (8.0 in)
1993151.9 mm (6.0 in)
1994482.1 mm (19.0 in)
1995105.1 mm (4.1 in)
1996218.3 mm (8.6 in)
1997164.9 mm (6.5 in)
1998179.6 mm (7.1 in)
1999105.8 mm (4.2 in)
200092.9 mm (3.7 in)
2001132.3 mm (5.2 in)
2002277.8 mm (10.9 in)
2003282.7 mm (11.1 in)
2004347.7 mm (13.7 in)
2005180.3 mm (7.1 in)
2006422.1 mm (16.6 in)
2007315.5 mm (12.4 in)
2008231.0 mm (9.1 in)
2009163.7 mm (6.4 in)
2010172.4 mm (6.8 in)
2011247.4 mm (9.7 in)
2012387.7 mm (15.3 in)
2013256.2 mm (10.1 in)
2014161.8 mm (6.4 in)
2015262.8 mm (10.3 in)
2016164.3 mm (6.5 in)
2017158.0 mm (6.2 in)
2018439.2 mm (17.3 in)
2019152.9 mm (6.0 in)
2020211.4 mm (8.3 in)
2021433.8 mm (17.1 in)
2022289.8 mm (11.4 in)
2023232.2 mm (9.1 in)
2024348.5 mm (13.7 in)
2025267.7 mm (10.5 in)
2026463.8 mm (18.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Waihee 837.5 by year The longest dry spell of the year at Waihee 837.5, 1986 to 2026. The record is 21 days in 2003, marked on the chart; the median year is 11 days. 05101520251990200020102020Record: 21 days in 2003
The longest dry spell of the year at Waihee 837.5, 1986 to 2026. The record is 21 days in 2003, marked on the chart; the median year is 11 days.
Longest dry spell (CDD) at Waihee 837.5 by year
YearLongest dry spell (CDD)
19864 days
198712 days
198810 days
198913 days
199010 days
199111 days
199215 days
199313 days
19947 days
199510 days
199610 days
19979 days
199814 days
199910 days
200013 days
200113 days
200212 days
200321 days
200413 days
200514 days
200610 days
20076 days
200811 days
200914 days
201013 days
20119 days
201210 days
20139 days
20148 days
201513 days
201611 days
201715 days
20187 days
201911 days
202011 days
202111 days
202211 days
20239 days
20249 days
20259 days
20264 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

38 years, 1987 to 2024

A day with at least 128.9 mm (5.1 in) of rain is expected about once in 2 years. A day with at least 326.1 mm (12.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Waihee 837.5: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years128.9 mm (5.1 in)
5 years183.0 mm (7.2 in)
10 years218.3 mm (8.6 in)
25 years262.3 mm (10.3 in)
50 years294.5 mm (11.6 in)Longer than the 38 years of record
100 years326.1 mm (12.8 in)Longer than the 38 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, 38 years of values from 1987 to 2024.

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: 277.4 mm (10.9 in) in 1994; 250.7 mm (9.9 in) in 2007; 240.8 mm (9.5 in) in 2021.

Download the Data

  • Data for Waihee 837.5 standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Waihee 837.5 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-14).