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Kaneohe Bay MCAS Weather Records (USW00022519)

Record envelope, standing records and threshold days for Kaneohe Bay MCAS (USW00022519), Hawaii, United States, with 85 years of record.

Key Facts for Kaneohe Bay MCAS

  • Kaneohe Bay MCAS (USW00022519) is a weather station in Hawaii, United States at 21.45 latitude and -157.77 longitude, 3 m (10 ft) above sea level.
  • The station reports from 1942 to 2026, 85 years of record.
  • 1,464 records set at Kaneohe Bay MCAS still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Kaneohe Bay MCAS set a daily record precipitation of 28.0 mm (1.1 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, 21.45 latitude, -157.77 longitude.
  • Elevation: 3 m (10 ft).
  • Period of record: 1942 to 2026, 85 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

2 days at or beyond a record
Daily record high and record low at Kaneohe Bay MCAS, with 2026 drawn through them The band shows the record high and record low for each calendar day at Kaneohe Bay MCAS. The lines show the 2026 daily maximum and minimum. 2 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 10152025303540 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Kaneohe Bay MCAS. The lines show the 2026 daily maximum and minimum. 2 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Kaneohe Bay MCAS, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan31.7 C (89.1 F)12.2 C (54.0 F)29.4 C (84.9 F)17.2 C (63.0 F)
Feb32.2 C (90.0 F)12.8 C (55.0 F)28.3 C (82.9 F)17.2 C (63.0 F)
Mar35.0 C (95.0 F)12.2 C (54.0 F)27.2 C (81.0 F)19.4 C (66.9 F)
Apr31.7 C (89.1 F)15.6 C (60.1 F)26.7 C (80.1 F)18.9 C (66.0 F)
May32.2 C (90.0 F)15.6 C (60.1 F)27.8 C (82.0 F)19.4 C (66.9 F)
Jun32.2 C (90.0 F)18.9 C (66.0 F)28.9 C (84.0 F)21.1 C (70.0 F)
Jul33.9 C (93.0 F)16.7 C (62.1 F)29.4 C (84.9 F)22.8 C (73.0 F)
Aug35.6 C (96.1 F)20.0 C (68.0 F)29.4 C (84.9 F)23.3 C (73.9 F)
Sep35.6 C (96.1 F)18.9 C (66.0 F)30.0 C (86.0 F)22.8 C (73.0 F)
Oct34.4 C (93.9 F)16.1 C (61.0 F)30.0 C (86.0 F)22.2 C (72.0 F)
Nov32.8 C (91.0 F)13.9 C (57.0 F)n/an/a
Dec32.8 C (91.0 F)12.8 C (55.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Kaneohe Bay MCAS by the year they were set 1,464 records at Kaneohe Bay MCAS still stand. 2024 holds the most, with 153. 0501001502001942: 321943: 171944: 351945: 71946: 161947: 291948: 311949: 61952: 331953: 201954: 241955: 301957: 51958: 111959: 51960: 41961: 71962: 101963: 61964: 61965: 11968: 61969: 131970: 101971: 231972: 401973: 271974: 171975: 121976: 181977: 121978: 141979: 401980: 341981: 321982: 131983: 131984: 291985: 91986: 101987: 311988: 251989: 81990: 101991: 51992: 101993: 41994: 41995: 161996: 371997: 171998: 112001: 92002: 142003: 82004: 72005: 42007: 52008: 82009: 272010: 52011: 82012: 172013: 62014: 102015: 42016: 62017: 602018: 22019: 32020: 92021: 552022: 202023: 1262024: 1532025: 122026: 11942195219611971197919871995200520142022
1,464 records at Kaneohe Bay MCAS still stand. 2024 holds the most, with 153.
Standing records at Kaneohe Bay MCAS by the year they were set
Year setStanding records
194232
194317
194435
19457
194616
194729
194831
19496
195233
195320
195424
195530
19575
195811
19595
19604
19617
196210
19636
19646
19651
19686
196913
197010
197123
197240
197327
197417
197512
197618
197712
197814
197940
198034
198132
198213
198313
198429
19859
198610
198731
198825
19898
199010
19915
199210
19934
19944
199516
199637
199717
199811
20019
200214
20038
20047
20054
20075
20088
200927
20105
20118
201217
20136
201410
20154
20166
201760
20182
20193
20209
202155
202220
2023126
2024153
202512
20261

All-Time Record Progression

5 new records
When Kaneohe Bay MCAS set new all-time records 5 all-time records were set at Kaneohe Bay MCAS between 31 August 1987 and 29 August 2020. Each dot is a new record. Record high maximum temperatureRecord high minimum temperature31 August 1987: Record high maximum temperature 33.9 C (93.0 F)6 August 2012: Record high maximum temperature 35.6 C (96.1 F)15 July 2020: Record high minimum temperature 27.8 C (82.0 F)27 August 2020: Record high minimum temperature 28.3 C (82.9 F)29 August 2020: Record high minimum temperature 29.4 C (84.9 F)1990199520002005201020152020
5 all-time records were set at Kaneohe Bay MCAS between 31 August 1987 and 29 August 2020. Each dot is a new record.
When Kaneohe Bay MCAS set new all-time records
DateKindDetail
1987-08-31Record high maximum temperatureRecord high maximum temperature 33.9 C (93.0 F)
2012-08-06Record high maximum temperatureRecord high maximum temperature 35.6 C (96.1 F)
2020-07-15Record high minimum temperatureRecord high minimum temperature 27.8 C (82.0 F)
2020-08-27Record high minimum temperatureRecord high minimum temperature 28.3 C (82.9 F)
2020-08-29Record high minimum temperatureRecord high minimum temperature 29.4 C (84.9 F)

Wettest Day of Each Month

Mar: 294.9 mm (11.6 in)
Record daily precipitation for each month at Kaneohe Bay MCAS The wettest day on record for each calendar month at Kaneohe Bay MCAS. The most was 294.9 mm (11.6 in) on 5 March 1958. 0100200300 Jan: 214.4 mm (8.4 in), 23 January 1972 Jan Feb: 98.6 mm (3.9 in), 1 February 1969 Feb Mar: 294.9 mm (11.6 in), 5 March 1958 Mar Apr: 154.4 mm (6.1 in), 14 April 1981 Apr May: 91.9 mm (3.6 in), 15 May 1974 May Jun: 67.8 mm (2.7 in), 3 June 2011 Jun Jul: 63.2 mm (2.5 in), 24 July 2016 Jul Aug: 71.1 mm (2.8 in), 6 August 1959 Aug Sep: 55.9 mm (2.2 in), 1 September 1968 Sep Oct: 135.1 mm (5.3 in), 30 October 1978 Oct Nov: 231.1 mm (9.1 in), 28 November 1954 Nov Dec: 223.8 mm (8.8 in), 6 December 2021 Dec
The wettest day on record for each calendar month at Kaneohe Bay MCAS. The most was 294.9 mm (11.6 in) on 5 March 1958.
Record daily precipitation for each month at Kaneohe Bay MCAS
MonthRecord daily precipitation (mm)Date
Jan214.4 mm (8.4 in)23 January 1972
Feb98.6 mm (3.9 in)1 February 1969
Mar294.9 mm (11.6 in)5 March 1958
Apr154.4 mm (6.1 in)14 April 1981
May91.9 mm (3.6 in)15 May 1974
Jun67.8 mm (2.7 in)3 June 2011
Jul63.2 mm (2.5 in)24 July 2016
Aug71.1 mm (2.8 in)6 August 1959
Sep55.9 mm (2.2 in)1 September 1968
Oct135.1 mm (5.3 in)30 October 1978
Nov231.1 mm (9.1 in)28 November 1954
Dec223.8 mm (8.8 in)6 December 2021

Period of Record Coverage

1942 to 2026
Days with data per year at Kaneohe Bay MCAS 78 years of record at Kaneohe Bay MCAS, 1942 to 2026. 27 years have data for under 90 percent of days and are left out of rankings: 1943, 1949, 1952, 1955, 1957, 1958, 1959, 1965 and others. 1942: 365 of 365 days1943: 327 of 365 days1944: 333 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 366 of 366 days1949: 110 of 365 days1952: 184 of 366 days1953: 365 of 365 days1954: 365 of 365 days1955: 251 of 365 days1957: 92 of 365 days1958: 273 of 365 days1959: 244 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 28 of 365 days1968: 232 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 365 of 366 days1977: 365 of 365 days1978: 364 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 303 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 319 of 365 days1991: 285 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 364 of 365 days2000: 31 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 210 of 365 days2004: 275 of 366 days2005: 364 of 365 days2007: 275 of 365 days2008: 356 of 366 days2009: 360 of 365 days2010: 356 of 365 days2011: 358 of 365 days2012: 279 of 366 days2013: 303 of 365 days2014: 296 of 365 days2015: 264 of 365 days2016: 336 of 366 days2017: 342 of 365 days2018: 63 of 365 days2019: 6 of 365 days2020: 90 of 366 days2021: 351 of 365 days2022: 324 of 365 days2023: 340 of 365 days2024: 324 of 366 days2025: 302 of 365 days2026: 280 of 365 days1960197019801990200020102020
78 years of record at Kaneohe Bay MCAS, 1942 to 2026. 27 years have data for under 90 percent of days and are left out of rankings: 1943, 1949, 1952, 1955, 1957, 1958, 1959, 1965 and others.
Days with data per year at Kaneohe Bay MCAS
YearDays with dataShare of yearComplete
1942365100%Yes
194332790%No
194433391%Yes
1945365100%Yes
1946365100%Yes
1947365100%Yes
1948366100%Yes
194911030%No
195218450%No
1953365100%Yes
1954365100%Yes
195525169%No
19579225%No
195827375%No
195924467%No
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965288%No
196823263%No
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976365100%Yes
1977365100%Yes
1978364100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
198630383%No
1987365100%Yes
1988366100%Yes
1989365100%Yes
199031987%No
199128578%No
1992366100%Yes
1993365100%Yes
1994365100%Yes
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998364100%Yes
2000318%No
2001365100%Yes
2002365100%Yes
200321058%No
200427575%No
2005364100%Yes
200727575%No
200835697%Yes
200936099%Yes
201035698%Yes
201135898%Yes
201227976%No
201330383%No
201429681%No
201526472%No
201633692%Yes
201734294%Yes
20186317%No
201962%No
20209025%No
202135196%Yes
202232489%No
202334093%Yes
202432489%No
202530283%No
202628077%No

Latest Records

20
Latest records at Kaneohe Bay MCAS
DateStationRecordValueBeat old record byOld record stoodSignificance
8 October 2026Kaneohe Bay MCAS, USdaily rain (Provisional)28.0 mm (1.1 in)2.1 mm (0.08 in)80 years34 of 100 (Routine)
8 September 2026Kaneohe Bay MCAS, USdaily rain (Provisional)21.4 mm (0.8 in)14.5 mm (0.6 in)43 years20 of 100 (Routine)
16 August 2026Kaneohe Bay MCAS, USdaily rain55.4 mm (2.2 in)32.5 mm (1.3 in)44 years61 of 100 (Major)
20 June 2026Kaneohe Bay MCAS, USdaily high min (Tie)25.0 C (77.0 F)tie44 years5 of 100 (Routine)
3 June 2026Kaneohe Bay MCAS, USdaily high min (Tie)25.0 C (77.0 F)tie44 years5 of 100 (Routine)
12 May 2026Kaneohe Bay MCAS, USdaily high min (Tie)23.9 C (75.0 F)tie64 years6 of 100 (Routine)
6 March 2026Kaneohe Bay MCAS, USdaily high min (Tie)23.3 C (73.9 F)tie40 years5 of 100 (Routine)
2 March 2026Kaneohe Bay MCAS, USdaily high min (Tie)23.3 C (73.9 F)tie1 year2 of 100 (Routine)
6 February 2026Kaneohe Bay MCAS, USdaily high max (Tie)28.3 C (82.9 F)tie48 years5 of 100 (Routine)
2 February 2026Kaneohe Bay MCAS, USdaily high min25.0 C (77.0 F)1.7 C (3.1 F)4 years18 of 100 (Routine)
29 January 2026Kaneohe Bay MCAS, USdaily high max (Tie)29.4 C (84.9 F)tie2 years2 of 100 (Routine)
1 January 2026Kaneohe Bay MCAS, USdaily high min (Tie)23.3 C (73.9 F)tie36 years4 of 100 (Routine)
11 December 2025Kaneohe Bay MCAS, USdaily high max30.6 C (87.1 F)0.6 C (1.1 F)2 years11 of 100 (Routine)
23 July 2025Kaneohe Bay MCAS, USdaily high min (Tie)25.6 C (78.1 F)tie44 years5 of 100 (Routine)
18 April 2025Kaneohe Bay MCAS, USdaily rain42.7 mm (1.7 in)25.7 mm (1.0 in)48 years44 of 100 (Notable)
2 April 2025Kaneohe Bay MCAS, USdaily high max (Tie)29.4 C (84.9 F)tie42 years5 of 100 (Routine)
1 April 2025Kaneohe Bay MCAS, USdaily high max29.4 C (84.9 F)0.5 C (0.9 F)0 years11 of 100 (Routine)
31 March 2025Kaneohe Bay MCAS, USdaily high max (Tie)29.4 C (84.9 F)tie2 years2 of 100 (Routine)
22 March 2025Kaneohe Bay MCAS, USdaily high min25.6 C (78.1 F)1.7 C (3.1 F)40 years30 of 100 (Routine)
20 March 2025Kaneohe Bay MCAS, USdaily high min (Tie)23.9 C (75.0 F)tie40 years5 of 100 (Routine)

Climate Trend

49 complete years, 1942 to 2023
Annual mean temperature at Kaneohe Bay MCAS as warming stripes, 1942 to 2023 One stripe for each of 49 complete years at Kaneohe Bay MCAS, 1942 to 2023. Blue stripes are years cooler than the station's own mean of 24.7 C (76.5 F); red stripes are warmer. The coolest year was 1948, at 23.6 C (74.5 F), and the warmest was 2023, at 27.0 C (80.6 F). The strongest colour marks a difference of 2.3 C (4.1 F). 1942: 24.1 C, -0.6 C from the station mean1945: 24.5 C, -0.2 C from the station mean1946: 23.9 C, -0.9 C from the station mean1947: 23.8 C, -0.9 C from the station mean1948: 23.6 C, -1.1 C from the station mean1953: 23.8 C, -0.9 C from the station mean1954: 24.0 C, -0.7 C from the station mean1960: 24.9 C, +0.2 C from the station mean1961: 24.7 C, 0.0 C from the station mean1962: 24.5 C, -0.2 C from the station mean1963: 24.6 C, -0.1 C from the station mean1964: 24.6 C, -0.1 C from the station mean1969: 24.6 C, -0.1 C from the station mean1970: 24.2 C, -0.5 C from the station mean1971: 23.8 C, -1.0 C from the station mean1972: 24.1 C, -0.6 C from the station mean1973: 23.9 C, -0.8 C from the station mean1974: 25.0 C, +0.3 C from the station mean1975: 24.4 C, -0.3 C from the station mean1976: 23.9 C, -0.8 C from the station mean1977: 24.8 C, +0.1 C from the station mean1978: 25.6 C, +0.9 C from the station mean1979: 25.8 C, +1.0 C from the station mean1980: 26.1 C, +1.4 C from the station mean1981: 25.9 C, +1.2 C from the station mean1982: 25.0 C, +0.3 C from the station mean1983: 25.7 C, +1.0 C from the station mean1984: 25.4 C, +0.7 C from the station mean1985: 24.6 C, -0.1 C from the station mean1987: 25.3 C, +0.6 C from the station mean1988: 25.8 C, +1.1 C from the station mean1989: 25.1 C, +0.4 C from the station mean1992: 25.3 C, +0.6 C from the station mean1993: 25.0 C, +0.3 C from the station mean1994: 25.4 C, +0.7 C from the station mean1995: 24.4 C, -0.3 C from the station mean1996: 24.0 C, -0.7 C from the station mean1997: 24.2 C, -0.5 C from the station mean1998: 24.1 C, -0.6 C from the station mean2001: 24.8 C, +0.1 C from the station mean2002: 24.5 C, -0.2 C from the station mean2005: 25.0 C, +0.3 C from the station mean2008: 24.6 C, -0.1 C from the station mean2009: 24.3 C, -0.4 C from the station mean2010: 24.6 C, -0.1 C from the station mean2011: 24.4 C, -0.3 C from the station mean2016: 25.2 C, +0.4 C from the station mean2021: 24.6 C, -0.2 C from the station mean2023: 27.0 C, +2.3 C from the station mean194219501960197019801990200020102020
One stripe for each of 49 complete years at Kaneohe Bay MCAS, 1942 to 2023. Blue stripes are years cooler than the station's own mean of 24.7 C (76.5 F); red stripes are warmer. The coolest year was 1948, at 23.6 C (74.5 F), and the warmest was 2023, at 27.0 C (80.6 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Kaneohe Bay MCAS as warming stripes, 1942 to 2023
YearAnnual mean temperatureDifference from the station mean
194224.1 C-0.63 C
194524.5 C-0.19 C
194623.9 C-0.87 C
194723.8 C-0.94 C
194823.6 C-1.12 C
195323.8 C-0.94 C
195424.0 C-0.73 C
196024.9 C+0.18 C
196124.7 C-0.02 C
196224.5 C-0.25 C
196324.6 C-0.13 C
196424.6 C-0.12 C
196924.6 C-0.09 C
197024.2 C-0.54 C
197123.8 C-0.96 C
197224.1 C-0.61 C
197323.9 C-0.82 C
197425.0 C+0.32 C
197524.4 C-0.35 C
197623.9 C-0.85 C
197724.8 C+0.08 C
197825.6 C+0.88 C
197925.8 C+1.03 C
198026.1 C+1.36 C
198125.9 C+1.21 C
198225.0 C+0.32 C
198325.7 C+0.98 C
198425.4 C+0.70 C
198524.6 C-0.10 C
198725.3 C+0.62 C
198825.8 C+1.06 C
198925.1 C+0.35 C
199225.3 C+0.60 C
199325.0 C+0.29 C
199425.4 C+0.66 C
199524.4 C-0.31 C
199624.0 C-0.75 C
199724.2 C-0.52 C
199824.1 C-0.61 C
200124.8 C+0.06 C
200224.5 C-0.20 C
200525.0 C+0.25 C
200824.6 C-0.08 C
200924.3 C-0.42 C
201024.6 C-0.10 C
201124.4 C-0.31 C
201625.2 C+0.44 C
202124.6 C-0.16 C
202327.0 C+2.26 C

The annual mean temperature here has risen by 0.14 C (0.05 to 0.23) per decade over 1942 to 2023. In Fahrenheit: 0.2 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 49 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Kaneohe Bay MCAS
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.14 C (0.05 to 0.23) per decade0.2 F (0.1 to 0.4) per decade1942 to 202349Rise
Mean daily maximum0.12 C (0.02 to 0.22) per decade0.22 F (0.03 to 0.40) per decade1942 to 202349Rise
Mean daily minimum0.2 C (0.1 to 0.2) per decade0.3 F (0.1 to 0.4) per decade1942 to 202349Rise

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

1942 to 2026
Yearly extremes at Kaneohe Bay MCAS: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)35.6 C (96.1 F)201231.1 C (88.0 F)78
Coldest night (TNn)12.2 C (54.0 F)194216.7 C (62.1 F)78
Wettest day (Rx1day)294.9 mm (11.6 in)195882.0 mm (3.2 in)77
Wettest five days (Rx5day)388.3 mm (15.3 in)1954132.0 mm (5.2 in)76
Longest dry spell (CDD)82 days201218 days77

Hottest day (TXx)

Hottest day (TXx) at Kaneohe Bay MCAS by year The hottest day of the year at Kaneohe Bay MCAS, 1942 to 2026. The record is 35.6 C (96.1 F) in 2012, marked on the chart; the median year is 31.1 C (88.0 F). 2628303234361960198020002020Record: 35.6 C (96.1 F) in 2012
The hottest day of the year at Kaneohe Bay MCAS, 1942 to 2026. The record is 35.6 C (96.1 F) in 2012, marked on the chart; the median year is 31.1 C (88.0 F).
Hottest day (TXx) at Kaneohe Bay MCAS by year
YearHottest day (TXx)
194231.1 C (88.0 F)
194330.6 C (87.1 F)
194430.0 C (86.0 F)
194529.4 C (84.9 F)
194630.0 C (86.0 F)
194730.6 C (87.1 F)
194830.0 C (86.0 F)
194927.8 C (82.0 F)
195228.9 C (84.0 F)
195329.4 C (84.9 F)
195431.1 C (88.0 F)
195530.0 C (86.0 F)
195731.1 C (88.0 F)
195829.4 C (84.9 F)
195930.6 C (87.1 F)
196031.1 C (88.0 F)
196130.0 C (86.0 F)
196230.0 C (86.0 F)
196330.0 C (86.0 F)
196430.0 C (86.0 F)
196528.3 C (82.9 F)
196832.8 C (91.0 F)
196932.2 C (90.0 F)
197032.2 C (90.0 F)
197130.6 C (87.1 F)
197232.2 C (90.0 F)
197332.2 C (90.0 F)
197432.8 C (91.0 F)
197531.7 C (89.1 F)
197630.6 C (87.1 F)
197732.2 C (90.0 F)
197831.7 C (89.1 F)
197932.8 C (91.0 F)
198032.2 C (90.0 F)
198132.2 C (90.0 F)
198232.2 C (90.0 F)
198332.2 C (90.0 F)
198431.7 C (89.1 F)
198531.7 C (89.1 F)
198631.7 C (89.1 F)
198733.9 C (93.0 F)
198831.1 C (88.0 F)
198932.2 C (90.0 F)
199030.6 C (87.1 F)
199132.2 C (90.0 F)
199232.8 C (91.0 F)
199332.8 C (91.0 F)
199431.7 C (89.1 F)
199530.6 C (87.1 F)
199631.1 C (88.0 F)
199730.0 C (86.0 F)
199831.1 C (88.0 F)
200029.4 C (84.9 F)
200131.1 C (88.0 F)
200231.1 C (88.0 F)
200332.8 C (91.0 F)
200431.1 C (88.0 F)
200530.6 C (87.1 F)
200730.6 C (87.1 F)
200830.6 C (87.1 F)
200930.6 C (87.1 F)
201030.0 C (86.0 F)
201129.4 C (84.9 F)
201235.6 C (96.1 F)
201332.8 C (91.0 F)
201435.0 C (95.0 F)
201532.2 C (90.0 F)
201631.7 C (89.1 F)
201732.8 C (91.0 F)
201829.4 C (84.9 F)
201927.8 C (82.0 F)
202030.6 C (87.1 F)
202129.4 C (84.9 F)
202230.6 C (87.1 F)
202333.3 C (91.9 F)
202434.4 C (93.9 F)
202532.2 C (90.0 F)
202630.0 C (86.0 F)

Coldest night (TNn)

Coldest night (TNn) at Kaneohe Bay MCAS by year The coldest night of the year at Kaneohe Bay MCAS, 1942 to 2026. The record is 12.2 C (54.0 F) in 1942, marked on the chart; the median year is 16.7 C (62.1 F). 1012.51517.52022.51960198020002020Record: 12.2 C (54.0 F) in 1942
The coldest night of the year at Kaneohe Bay MCAS, 1942 to 2026. The record is 12.2 C (54.0 F) in 1942, marked on the chart; the median year is 16.7 C (62.1 F).
Coldest night (TNn) at Kaneohe Bay MCAS by year
YearColdest night (TNn)
194212.2 C (54.0 F)
194315.6 C (60.1 F)
194415.0 C (59.0 F)
194516.7 C (62.1 F)
194615.6 C (60.1 F)
194715.6 C (60.1 F)
194815.6 C (60.1 F)
194915.6 C (60.1 F)
195216.7 C (62.1 F)
195316.7 C (62.1 F)
195415.6 C (60.1 F)
195515.6 C (60.1 F)
195717.8 C (64.0 F)
195816.7 C (62.1 F)
195920.0 C (68.0 F)
196017.8 C (64.0 F)
196116.1 C (61.0 F)
196216.1 C (61.0 F)
196317.8 C (64.0 F)
196418.9 C (66.0 F)
196518.3 C (64.9 F)
196820.0 C (68.0 F)
196917.2 C (63.0 F)
197016.7 C (62.1 F)
197115.6 C (60.1 F)
197215.6 C (60.1 F)
197315.6 C (60.1 F)
197418.3 C (64.9 F)
197517.8 C (64.0 F)
197615.6 C (60.1 F)
197718.3 C (64.9 F)
197818.3 C (64.9 F)
197917.2 C (63.0 F)
198017.2 C (63.0 F)
198117.2 C (63.0 F)
198217.8 C (64.0 F)
198317.8 C (64.0 F)
198416.7 C (62.1 F)
198516.1 C (61.0 F)
198616.7 C (62.1 F)
198717.8 C (64.0 F)
198815.6 C (60.1 F)
198917.8 C (64.0 F)
199015.6 C (60.1 F)
199119.4 C (66.9 F)
199216.7 C (62.1 F)
199316.7 C (62.1 F)
199417.8 C (64.0 F)
199515.6 C (60.1 F)
199612.8 C (55.0 F)
199714.4 C (57.9 F)
199812.8 C (55.0 F)
200021.1 C (70.0 F)
200115.6 C (60.1 F)
200215.0 C (59.0 F)
200312.2 C (54.0 F)
200416.1 C (61.0 F)
200516.1 C (61.0 F)
200716.1 C (61.0 F)
200813.3 C (55.9 F)
200914.4 C (57.9 F)
201015.6 C (60.1 F)
201114.4 C (57.9 F)
201215.6 C (60.1 F)
201318.9 C (66.0 F)
201416.1 C (61.0 F)
201515.6 C (60.1 F)
201615.6 C (60.1 F)
201713.9 C (57.0 F)
201816.7 C (62.1 F)
201921.1 C (70.0 F)
202019.4 C (66.9 F)
202116.1 C (61.0 F)
202217.8 C (64.0 F)
202318.9 C (66.0 F)
202417.2 C (63.0 F)
202519.4 C (66.9 F)
202617.2 C (63.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Kaneohe Bay MCAS by year The wettest day of the year at Kaneohe Bay MCAS, 1942 to 2026. The record is 294.9 mm (11.6 in) in 1958, marked on the chart; the median year is 82.0 mm (3.2 in). 01002003001960198020002020Record: 294.9 mm (11.6 in) in 1958
The wettest day of the year at Kaneohe Bay MCAS, 1942 to 2026. The record is 294.9 mm (11.6 in) in 1958, marked on the chart; the median year is 82.0 mm (3.2 in).
Wettest day (Rx1day) at Kaneohe Bay MCAS by year
YearWettest day (Rx1day)
194269.6 mm (2.7 in)
194390.4 mm (3.6 in)
194458.4 mm (2.3 in)
1945106.2 mm (4.2 in)
194686.1 mm (3.4 in)
194794.0 mm (3.7 in)
194867.1 mm (2.6 in)
1949165.6 mm (6.5 in)
195287.1 mm (3.4 in)
195350.3 mm (2.0 in)
1954231.1 mm (9.1 in)
1955107.7 mm (4.2 in)
195783.3 mm (3.3 in)
1958294.9 mm (11.6 in)
195971.1 mm (2.8 in)
196068.8 mm (2.7 in)
196173.4 mm (2.9 in)
196252.1 mm (2.1 in)
1963128.0 mm (5.0 in)
196465.0 mm (2.6 in)
196527.2 mm (1.1 in)
196872.1 mm (2.8 in)
196998.6 mm (3.9 in)
197099.8 mm (3.9 in)
197148.8 mm (1.9 in)
1972214.4 mm (8.4 in)
197339.6 mm (1.6 in)
197491.9 mm (3.6 in)
197597.5 mm (3.8 in)
197662.2 mm (2.4 in)
197751.6 mm (2.0 in)
1978135.1 mm (5.3 in)
197991.9 mm (3.6 in)
1980149.6 mm (5.9 in)
1981154.4 mm (6.1 in)
1982100.3 mm (3.9 in)
198313.0 mm (0.5 in)
1984114.3 mm (4.5 in)
198591.7 mm (3.6 in)
198689.4 mm (3.5 in)
1987125.5 mm (4.9 in)
1988115.6 mm (4.6 in)
1989101.9 mm (4.0 in)
199081.3 mm (3.2 in)
1991154.9 mm (6.1 in)
1992166.6 mm (6.6 in)
199359.2 mm (2.3 in)
1994118.4 mm (4.7 in)
199568.3 mm (2.7 in)
1996127.0 mm (5.0 in)
199769.3 mm (2.7 in)
199827.9 mm (1.1 in)
200060.2 mm (2.4 in)
200190.7 mm (3.6 in)
200247.2 mm (1.9 in)
200362.2 mm (2.4 in)
200442.7 mm (1.7 in)
200582.0 mm (3.2 in)
200735.6 mm (1.4 in)
2008166.9 mm (6.6 in)
200967.3 mm (2.6 in)
2010179.8 mm (7.1 in)
2011103.6 mm (4.1 in)
201273.7 mm (2.9 in)
201339.1 mm (1.5 in)
201467.1 mm (2.6 in)
201519.1 mm (0.8 in)
201663.2 mm (2.5 in)
201769.9 mm (2.8 in)
201848.5 mm (1.9 in)
201935.1 mm (1.4 in)
2020n/a
2021223.8 mm (8.8 in)
2022110.0 mm (4.3 in)
202357.4 mm (2.3 in)
202464.8 mm (2.6 in)
202592.2 mm (3.6 in)
202655.4 mm (2.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Kaneohe Bay MCAS by year The wettest five days of the year at Kaneohe Bay MCAS, 1942 to 2026. The record is 388.3 mm (15.3 in) in 1954, marked on the chart; the median year is 132.0 mm (5.2 in). 01002003004001960198020002020Record: 388.3 mm (15.3 in) in 1954
The wettest five days of the year at Kaneohe Bay MCAS, 1942 to 2026. The record is 388.3 mm (15.3 in) in 1954, marked on the chart; the median year is 132.0 mm (5.2 in).
Wettest five days (Rx5day) at Kaneohe Bay MCAS by year
YearWettest five days (Rx5day)
1942136.6 mm (5.4 in)
1943247.8 mm (9.8 in)
1944124.9 mm (4.9 in)
1945199.1 mm (7.8 in)
1946122.7 mm (4.8 in)
1947139.0 mm (5.5 in)
1948190.0 mm (7.5 in)
1949287.3 mm (11.3 in)
1952143.8 mm (5.7 in)
1953104.4 mm (4.1 in)
1954388.3 mm (15.3 in)
1955251.5 mm (9.9 in)
1957165.4 mm (6.5 in)
1958355.8 mm (14.0 in)
195989.7 mm (3.5 in)
1960132.1 mm (5.2 in)
1961116.9 mm (4.6 in)
1962117.7 mm (4.6 in)
1963177.6 mm (7.0 in)
1964107.0 mm (4.2 in)
196535.3 mm (1.4 in)
1968158.9 mm (6.3 in)
1969191.3 mm (7.5 in)
1970239.5 mm (9.4 in)
1971107.9 mm (4.2 in)
1972226.7 mm (8.9 in)
197373.1 mm (2.9 in)
1974131.9 mm (5.2 in)
1975219.9 mm (8.7 in)
1976138.2 mm (5.4 in)
197784.6 mm (3.3 in)
1978270.5 mm (10.6 in)
1979146.1 mm (5.8 in)
1980334.2 mm (13.2 in)
1981172.2 mm (6.8 in)
1982213.9 mm (8.4 in)
198332.6 mm (1.3 in)
1984211.1 mm (8.3 in)
1985117.8 mm (4.6 in)
1986215.2 mm (8.5 in)
1987184.6 mm (7.3 in)
1988119.9 mm (4.7 in)
1989124.0 mm (4.9 in)
1990150.7 mm (5.9 in)
199196.8 mm (3.8 in)
1992194.7 mm (7.7 in)
1993114.5 mm (4.5 in)
1994161.3 mm (6.4 in)
1995124.4 mm (4.9 in)
1996200.9 mm (7.9 in)
199788.4 mm (3.5 in)
199834.6 mm (1.4 in)
200061.8 mm (2.4 in)
2001104.9 mm (4.1 in)
200279.1 mm (3.1 in)
200376.4 mm (3.0 in)
200469.6 mm (2.7 in)
2005108.4 mm (4.3 in)
200771.4 mm (2.8 in)
2008233.9 mm (9.2 in)
200975.2 mm (3.0 in)
2010203.7 mm (8.0 in)
2011130.3 mm (5.1 in)
2012150.4 mm (5.9 in)
201367.9 mm (2.7 in)
201496.3 mm (3.8 in)
201533.2 mm (1.3 in)
201684.5 mm (3.3 in)
201779.3 mm (3.1 in)
201884.6 mm (3.3 in)
2019n/a
2020n/a
2021282.5 mm (11.1 in)
2022137.4 mm (5.4 in)
202393.0 mm (3.7 in)
2024151.6 mm (6.0 in)
2025174.8 mm (6.9 in)
202669.0 mm (2.7 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Kaneohe Bay MCAS by year The longest dry spell of the year at Kaneohe Bay MCAS, 1942 to 2026. The record is 82 days in 2012, marked on the chart; the median year is 18 days. 0204060801001960198020002020Record: 82 days in 2012
The longest dry spell of the year at Kaneohe Bay MCAS, 1942 to 2026. The record is 82 days in 2012, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Kaneohe Bay MCAS by year
YearLongest dry spell (CDD)
194214 days
194312 days
194431 days
194526 days
194612 days
194725 days
194815 days
194912 days
195217 days
195319 days
195414 days
195522 days
195710 days
195813 days
195910 days
196013 days
196112 days
196213 days
196312 days
196422 days
19655 days
196815 days
196915 days
197024 days
197115 days
197219 days
197313 days
197415 days
197528 days
197614 days
197713 days
197813 days
197912 days
198010 days
198119 days
198227 days
198323 days
198422 days
198532 days
198611 days
198729 days
198831 days
198912 days
199016 days
199120 days
199214 days
199321 days
199414 days
199520 days
199633 days
199728 days
199827 days
200012 days
200112 days
200227 days
200353 days
200446 days
200527 days
200742 days
200841 days
200922 days
201018 days
201124 days
201282 days
201332 days
201426 days
201525 days
201654 days
201754 days
20189 days
20193 days
2020n/a
202117 days
202216 days
202319 days
202415 days
202520 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

54 years, 1942 to 2024

A day with at least 84.3 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 254.2 mm (10.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Kaneohe Bay MCAS: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years84.3 mm (3.3 in)
5 years125.8 mm (5.0 in)
10 years154.8 mm (6.1 in)
25 years193.3 mm (7.6 in)
50 years223.3 mm (8.8 in)
100 years254.2 mm (10.0 in)Longer than the 54 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, 54 years of values from 1942 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: 231.1 mm (9.1 in) in 1954; 223.8 mm (8.8 in) in 2021; 214.4 mm (8.4 in) in 1972.

Download the Data

  • Data for Kaneohe Bay MCAS standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Kaneohe Bay MCAS 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).