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Kumejima Weather Records (JA000047929)

Record envelope, standing records and threshold days for Kumejima (JA000047929), Japan, with 67 years of record.

Key Facts for Kumejima

  • Kumejima (JA000047929) is a weather station in Japan at 26.33 latitude and 126.80 longitude, 5 m (16 ft) above sea level.
  • The station reports from 1959 to 2025, 67 years of record.
  • 1,464 records set at Kumejima still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Kumejima set a daily record precipitation of 40.9 mm (1.6 in) on 13 July 2025.

About the Station

  • Location: Japan, 26.33 latitude, 126.80 longitude.
  • Elevation: 5 m (16 ft).
  • Period of record: 1959 to 2025, 67 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

4 days at or beyond a record
Daily record high and record low at Kumejima, with 2026 drawn through them The band shows the record high and record low for each calendar day at Kumejima. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 010203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Kumejima. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Kumejima, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan26.6 C (79.9 F)2.9 C (37.2 F)22.8 C (73.0 F)9.7 C (49.5 F)
Feb27.0 C (80.6 F)4.0 C (39.2 F)22.9 C (73.2 F)8.9 C (48.0 F)
Mar31.4 C (88.5 F)3.2 C (37.8 F)26.1 C (79.0 F)8.4 C (47.1 F)
Apr30.2 C (86.4 F)6.8 C (44.2 F)24.5 C (76.1 F)11.2 C (52.2 F)
May32.1 C (89.8 F)12.9 C (55.2 F)n/a15.7 C (60.3 F)
Jun33.7 C (92.7 F)16.4 C (61.5 F)32.0 C (89.6 F)18.2 C (64.8 F)
Jul34.9 C (94.8 F)20.4 C (68.7 F)n/a24.9 C (76.8 F)
Aug38.0 C (100.4 F)19.8 C (67.6 F)n/a24.2 C (75.6 F)
Sep36.9 C (98.4 F)15.5 C (59.9 F)n/an/a
Oct32.4 C (90.3 F)11.6 C (52.9 F)n/an/a
Nov30.9 C (87.6 F)9.6 C (49.3 F)n/an/a
Dec29.4 C (84.9 F)5.4 C (41.7 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Kumejima by the year they were set 1,464 records at Kumejima still stand. 2024 holds the most, with 68. 0204060801959: 231960: 291961: 101962: 231963: 371964: 201965: 231966: 321967: 301968: 281969: 391970: 161971: 171972: 391973: 191974: 271975: 241976: 291977: 261978: 231979: 151980: 191981: 351982: 271983: 141984: 81985: 171986: 231987: 361988: 181989: 231990: 131991: 151992: 101993: 141994: 101995: 121996: 171997: 91998: 331999: 142000: 202001: 52002: 92003: 82004: 102005: 202006: 92007: 162008: 142009: 122010: 202011: 142012: 42013: 172014: 132015: 362016: 582017: 552018: 252019: 162020: 312021: 322022: 272023: 212024: 682025: 81959196619731980198719942001200820152022
1,464 records at Kumejima still stand. 2024 holds the most, with 68.
Standing records at Kumejima by the year they were set
Year setStanding records
195923
196029
196110
196223
196337
196420
196523
196632
196730
196828
196939
197016
197117
197239
197319
197427
197524
197629
197726
197823
197915
198019
198135
198227
198314
19848
198517
198623
198736
198818
198923
199013
199115
199210
199314
199410
199512
199617
19979
199833
199914
200020
20015
20029
20038
200410
200520
20069
200716
200814
200912
201020
201114
20124
201317
201413
201536
201658
201755
201825
201916
202031
202132
202227
202321
202468
20258

All-Time Record Progression

6 new records
When Kumejima set new all-time records 6 all-time records were set at Kumejima between 19 July 1991 and 6 August 2017. Each dot is a new record. Record high minimum temperatureRecord high maximum temperatureRecord low maximum temperature19 July 1991: Record high minimum temperature 29.3 C (84.7 F)17 August 1998: Record high maximum temperature 34.3 C (93.7 F)1 September 2003: Record high maximum temperature 36.9 C (98.4 F)3 August 2004: Record high maximum temperature 38.0 C (100.4 F)24 January 2016: Record low maximum temperature 8.3 C (46.9 F)6 August 2017: Record high minimum temperature 29.7 C (85.5 F)19952000200520102015
6 all-time records were set at Kumejima between 19 July 1991 and 6 August 2017. Each dot is a new record.
When Kumejima set new all-time records
DateKindDetail
1991-07-19Record high minimum temperatureRecord high minimum temperature 29.3 C (84.7 F)
1998-08-17Record high maximum temperatureRecord high maximum temperature 34.3 C (93.7 F)
2003-09-01Record high maximum temperatureRecord high maximum temperature 36.9 C (98.4 F)
2004-08-03Record high maximum temperatureRecord high maximum temperature 38.0 C (100.4 F)
2016-01-24Record low maximum temperatureRecord low maximum temperature 8.3 C (46.9 F)
2017-08-06Record high minimum temperatureRecord high minimum temperature 29.7 C (85.5 F)

Wettest Day of Each Month

Oct: 386.0 mm (15.2 in)
Record daily precipitation for each month at Kumejima The wettest day on record for each calendar month at Kumejima. The most was 386.0 mm (15.2 in) on 6 October 1969. 0100200300400 Jan: 89.3 mm (3.5 in), 28 January 1964 Jan Feb: 109.5 mm (4.3 in), 15 February 2010 Feb Mar: 207.0 mm (8.1 in), 30 March 1991 Mar Apr: 246.1 mm (9.7 in), 20 April 2012 Apr May: 256.0 mm (10.1 in), 31 May 1994 May Jun: 225.0 mm (8.9 in), 19 June 2017 Jun Jul: 273.5 mm (10.8 in), 24 July 1972 Jul Aug: 279.1 mm (11.0 in), 6 August 2012 Aug Sep: 341.9 mm (13.5 in), 29 September 2012 Sep Oct: 386.0 mm (15.2 in), 6 October 1969 Oct Nov: 220.0 mm (8.7 in), 14 November 1971 Nov Dec: 147.1 mm (5.8 in), 1 December 1999 Dec
The wettest day on record for each calendar month at Kumejima. The most was 386.0 mm (15.2 in) on 6 October 1969.
Record daily precipitation for each month at Kumejima
MonthRecord daily precipitation (mm)Date
Jan89.3 mm (3.5 in)28 January 1964
Feb109.5 mm (4.3 in)15 February 2010
Mar207.0 mm (8.1 in)30 March 1991
Apr246.1 mm (9.7 in)20 April 2012
May256.0 mm (10.1 in)31 May 1994
Jun225.0 mm (8.9 in)19 June 2017
Jul273.5 mm (10.8 in)24 July 1972
Aug279.1 mm (11.0 in)6 August 2012
Sep341.9 mm (13.5 in)29 September 2012
Oct386.0 mm (15.2 in)6 October 1969
Nov220.0 mm (8.7 in)14 November 1971
Dec147.1 mm (5.8 in)1 December 1999

Period of Record Coverage

1959 to 2025
Days with data per year at Kumejima 67 years of record at Kumejima, 1959 to 2025. 19 years have data for under 90 percent of days and are left out of rankings: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 and others. 1959: 353 of 365 days1960: 359 of 366 days1961: 361 of 365 days1962: 361 of 365 days1963: 364 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 364 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: 366 of 366 days1977: 365 of 365 days1978: 365 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: 365 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 259 of 365 days1991: 243 of 365 days1992: 247 of 366 days1993: 235 of 365 days1994: 324 of 365 days1995: 313 of 365 days1996: 329 of 366 days1997: 317 of 365 days1998: 302 of 365 days1999: 304 of 365 days2000: 326 of 366 days2001: 286 of 365 days2002: 323 of 365 days2003: 340 of 365 days2004: 324 of 366 days2005: 340 of 365 days2006: 334 of 365 days2007: 344 of 365 days2008: 340 of 366 days2009: 339 of 365 days2010: 341 of 365 days2011: 338 of 365 days2012: 342 of 366 days2013: 342 of 365 days2014: 343 of 365 days2015: 349 of 365 days2016: 345 of 366 days2017: 343 of 365 days2018: 342 of 365 days2019: 328 of 365 days2020: 311 of 366 days2021: 337 of 365 days2022: 330 of 365 days2023: 255 of 365 days2024: 260 of 366 days2025: 54 of 365 days1960197019801990200020102020
67 years of record at Kumejima, 1959 to 2025. 19 years have data for under 90 percent of days and are left out of rankings: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 and others.
Days with data per year at Kumejima
YearDays with dataShare of yearComplete
195935397%Yes
196035998%Yes
196136199%Yes
196236199%Yes
1963364100%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
196836499%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
1988366100%Yes
1989365100%Yes
199025971%No
199124367%No
199224767%No
199323564%No
199432489%No
199531386%No
199632990%No
199731787%No
199830283%No
199930483%No
200032689%No
200128678%No
200232388%No
200334093%Yes
200432489%No
200534093%Yes
200633492%Yes
200734494%Yes
200834093%Yes
200933993%Yes
201034193%Yes
201133893%Yes
201234293%Yes
201334294%Yes
201434394%Yes
201534996%Yes
201634594%Yes
201734394%Yes
201834294%Yes
201932890%No
202031185%No
202133792%Yes
202233090%Yes
202325570%No
202426071%No
20255415%No

Latest Records

20
Latest records at Kumejima
DateStationRecordValueBeat old record byOld record stoodSignificance
13 July 2025Kumejima, JPdaily rain40.9 mm (1.6 in)5.1 mm (0.20 in)18 years12 of 100 (Routine)
10 June 2025Kumejima, JPdaily high min27.4 C (81.3 F)0.3 C (0.5 F)34 years17 of 100 (Routine)
9 June 2025Kumejima, JPdaily high min27.2 C (81.0 F)0.4 C (0.7 F)36 years18 of 100 (Routine)
18 May 2025Kumejima, JPdaily high min26.5 C (79.7 F)0.1 C (0.2 F)4 years7 of 100 (Routine)
16 April 2025Kumejima, JPdaily low min12.2 C (54.0 F)0.2 C (0.4 F)63 years24 of 100 (Routine)
14 April 2025Kumejima, JPdaily low min12.4 C (54.3 F)0.7 C (1.3 F)24 years15 of 100 (Routine)
22 March 2025Kumejima, JPdaily low min8.4 C (47.1 F)1.7 C (3.1 F)50 years26 of 100 (Routine)
3 March 2025Kumejima, JPdaily high max26.1 C (79.0 F)0.1 C (0.2 F)6 years7 of 100 (Routine)
2 March 2025Kumejima, JPdaily high min21.7 C (71.1 F)1.5 C (2.7 F)59 years27 of 100 (Routine)
21 February 2025Kumejima, JPdaily rain29.0 mm (1.1 in)2.1 mm (0.08 in)6 years8 of 100 (Routine)
1 February 2025Kumejima, JPdaily rain66.0 mm (2.6 in)27.0 mm (1.1 in)65 years43 of 100 (Notable)
23 January 2025Kumejima, JPdaily rain53.1 mm (2.1 in)8.5 mm (0.33 in)61 years30 of 100 (Routine)
15 November 2024Kumejima, JPdaily high max29.6 C (85.3 F)0.2 C (0.4 F)52 years21 of 100 (Routine)
14 November 2024Kumejima, JPdaily high min25.1 C (77.2 F)1.7 C (3.1 F)52 years27 of 100 (Routine)
13 November 2024Kumejima, JPdaily high min24.4 C (75.9 F)0.5 C (0.9 F)58 years24 of 100 (Routine)
11 November 2024Kumejima, JPdaily high min23.6 C (74.5 F)0.1 C (0.2 F)37 years17 of 100 (Routine)
10 November 2024Kumejima, JPdaily high max30.1 C (86.2 F)0.4 C (0.7 F)1 year7 of 100 (Routine)
1 November 2024Kumejima, JPmonthly high max30.9 C (87.6 F)0.7 C (1.3 F)15 years22 of 100 (Routine)
31 October 2024Kumejima, JPdaily high min26.9 C (80.4 F)2.4 C (4.3 F)17 years21 of 100 (Routine)
31 October 2024Kumejima, JPdaily high max30.4 C (86.7 F)0.5 C (0.9 F)16 years12 of 100 (Routine)

Climate Trend

31 complete years, 1959 to 1989
Annual mean temperature at Kumejima as warming stripes, 1959 to 1989 One stripe for each of 31 complete years at Kumejima, 1959 to 1989. Blue stripes are years cooler than the station's own mean of 22.5 C (72.4 F); red stripes are warmer. The coolest year was 1968, at 21.7 C (71.1 F), and the warmest was 1959, at 23.0 C (73.4 F). The strongest colour marks a difference of 0.8 C (1.4 F). 1959: 23.0 C, +0.5 C from the station mean1960: 22.8 C, +0.3 C from the station mean1961: 22.9 C, +0.4 C from the station mean1962: 22.1 C, -0.4 C from the station mean1963: 21.8 C, -0.6 C from the station mean1964: 22.9 C, +0.4 C from the station mean1965: 21.9 C, -0.5 C from the station mean1966: 22.6 C, +0.2 C from the station mean1967: 22.4 C, -0.1 C from the station mean1968: 21.7 C, -0.7 C from the station mean1969: 22.5 C, 0.0 C from the station mean1970: 22.1 C, -0.4 C from the station mean1971: 22.2 C, -0.3 C from the station mean1972: 22.1 C, -0.3 C from the station mean1973: 22.6 C, +0.1 C from the station mean1974: 22.5 C, +0.1 C from the station mean1975: 22.6 C, +0.1 C from the station mean1976: 22.3 C, -0.2 C from the station mean1977: 22.7 C, +0.3 C from the station mean1978: 22.2 C, -0.3 C from the station mean1979: 22.6 C, +0.1 C from the station mean1980: 22.7 C, +0.2 C from the station mean1981: 22.2 C, -0.3 C from the station mean1982: 22.3 C, -0.2 C from the station mean1983: 22.8 C, +0.4 C from the station mean1984: 22.5 C, 0.0 C from the station mean1985: 22.6 C, +0.1 C from the station mean1986: 22.2 C, -0.3 C from the station mean1987: 22.9 C, +0.4 C from the station mean1988: 22.9 C, +0.4 C from the station mean1989: 22.8 C, +0.3 C from the station mean195919651970197519801985
One stripe for each of 31 complete years at Kumejima, 1959 to 1989. Blue stripes are years cooler than the station's own mean of 22.5 C (72.4 F); red stripes are warmer. The coolest year was 1968, at 21.7 C (71.1 F), and the warmest was 1959, at 23.0 C (73.4 F). The strongest colour marks a difference of 0.8 C (1.4 F).
Annual mean temperature at Kumejima as warming stripes, 1959 to 1989
YearAnnual mean temperatureDifference from the station mean
195923.0 C+0.54 C
196022.8 C+0.35 C
196122.9 C+0.43 C
196222.1 C-0.38 C
196321.8 C-0.63 C
196422.9 C+0.40 C
196521.9 C-0.53 C
196622.6 C+0.16 C
196722.4 C-0.06 C
196821.7 C-0.72 C
196922.5 C+0.04 C
197022.1 C-0.38 C
197122.2 C-0.27 C
197222.1 C-0.33 C
197322.6 C+0.09 C
197422.5 C+0.08 C
197522.6 C+0.09 C
197622.3 C-0.16 C
197722.7 C+0.26 C
197822.2 C-0.27 C
197922.6 C+0.14 C
198022.7 C+0.25 C
198122.2 C-0.26 C
198222.3 C-0.15 C
198322.8 C+0.38 C
198422.5 C+0.03 C
198522.6 C+0.13 C
198622.2 C-0.30 C
198722.9 C+0.45 C
198822.9 C+0.45 C
198922.8 C+0.30 C

The fitted trend in annual mean temperature here over 1959 to 1989 is 0.1 C (-0.1 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.4) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Kumejima
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.1 C (-0.1 to 0.2) per decade0.1 F (-0.1 to 0.4) per decade1959 to 198931Not clearly different from zero
Mean daily maximum0.1 C (-0.1 to 0.2) per decade0.1 F (-0.1 to 0.3) per decade1959 to 198931Not clearly different from zero
Mean daily minimum0.1 C (-0.1 to 0.3) per decade0.1 F (-0.2 to 0.5) per decade1959 to 198931Not 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

1959 to 2025
Yearly extremes at Kumejima: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.0 C (100.4 F)200433.1 C (91.6 F)67
Coldest night (TNn)2.9 C (37.2 F)19637.0 C (44.6 F)67
Wettest day (Rx1day)386.0 mm (15.2 in)1969160.8 mm (6.3 in)67
Wettest five days (Rx5day)770.9 mm (30.4 in)2023244.5 mm (9.6 in)64
Longest dry spell (CDD)36 days198815 days65

Hottest day (TXx)

Hottest day (TXx) at Kumejima by year The hottest day of the year at Kumejima, 1959 to 2025. The record is 38.0 C (100.4 F) in 2004, marked on the chart; the median year is 33.1 C (91.6 F). 30323436381960198020002020Record: 38.0 C (100.4 F) in 2004
The hottest day of the year at Kumejima, 1959 to 2025. The record is 38.0 C (100.4 F) in 2004, marked on the chart; the median year is 33.1 C (91.6 F).
Hottest day (TXx) at Kumejima by year
YearHottest day (TXx)
195932.5 C (90.5 F)
196032.8 C (91.0 F)
196132.3 C (90.1 F)
196232.8 C (91.0 F)
196334.1 C (93.4 F)
196432.1 C (89.8 F)
196532.5 C (90.5 F)
196633.8 C (92.8 F)
196732.6 C (90.7 F)
196832.0 C (89.6 F)
196932.3 C (90.1 F)
197032.6 C (90.7 F)
197133.3 C (91.9 F)
197232.1 C (89.8 F)
197331.8 C (89.2 F)
197432.6 C (90.7 F)
197532.3 C (90.1 F)
197632.4 C (90.3 F)
197733.0 C (91.4 F)
197832.1 C (89.8 F)
197932.8 C (91.0 F)
198033.1 C (91.6 F)
198133.0 C (91.4 F)
198232.5 C (90.5 F)
198333.2 C (91.8 F)
198432.4 C (90.3 F)
198532.2 C (90.0 F)
198633.0 C (91.4 F)
198733.1 C (91.6 F)
198833.4 C (92.1 F)
198933.1 C (91.6 F)
199033.5 C (92.3 F)
199133.4 C (92.1 F)
199232.5 C (90.5 F)
199333.5 C (92.3 F)
199433.5 C (92.3 F)
199532.9 C (91.2 F)
199633.7 C (92.7 F)
199732.8 C (91.0 F)
199834.3 C (93.7 F)
199932.7 C (90.9 F)
200032.6 C (90.7 F)
200133.9 C (93.0 F)
200233.0 C (91.4 F)
200336.9 C (98.4 F)
200438.0 C (100.4 F)
200534.1 C (93.4 F)
200634.1 C (93.4 F)
200734.7 C (94.5 F)
200833.4 C (92.1 F)
200933.7 C (92.7 F)
201033.1 C (91.6 F)
201133.6 C (92.5 F)
201233.6 C (92.5 F)
201334.8 C (94.6 F)
201433.8 C (92.8 F)
201533.7 C (92.7 F)
201634.3 C (93.7 F)
201735.3 C (95.5 F)
201833.3 C (91.9 F)
201933.2 C (91.8 F)
202033.8 C (92.8 F)
202133.2 C (91.8 F)
202234.9 C (94.8 F)
202333.8 C (92.8 F)
202435.3 C (95.5 F)
202532.0 C (89.6 F)

Coldest night (TNn)

Coldest night (TNn) at Kumejima by year The coldest night of the year at Kumejima, 1959 to 2025. The record is 2.9 C (37.2 F) in 1963, marked on the chart; the median year is 7.0 C (44.6 F). 246810121960198020002020Record: 2.9 C (37.2 F) in 1963
The coldest night of the year at Kumejima, 1959 to 2025. The record is 2.9 C (37.2 F) in 1963, marked on the chart; the median year is 7.0 C (44.6 F).
Coldest night (TNn) at Kumejima by year
YearColdest night (TNn)
19596.7 C (44.1 F)
19607.0 C (44.6 F)
19616.7 C (44.1 F)
19625.4 C (41.7 F)
19632.9 C (37.2 F)
19647.3 C (45.1 F)
19656.4 C (43.5 F)
19664.6 C (40.3 F)
19675.1 C (41.2 F)
19684.6 C (40.3 F)
19697.4 C (45.3 F)
19706.5 C (43.7 F)
19715.2 C (41.4 F)
19726.2 C (43.2 F)
19738.2 C (46.8 F)
19746.8 C (44.2 F)
19755.3 C (41.5 F)
19767.5 C (45.5 F)
19776.1 C (43.0 F)
19785.1 C (41.2 F)
19796.1 C (43.0 F)
19806.4 C (43.5 F)
19817.1 C (44.8 F)
19825.6 C (42.1 F)
19839.0 C (48.2 F)
19845.6 C (42.1 F)
19856.1 C (43.0 F)
19865.2 C (41.4 F)
19875.6 C (42.1 F)
19887.0 C (44.6 F)
19898.1 C (46.6 F)
19908.5 C (47.3 F)
19917.9 C (46.2 F)
19926.6 C (43.9 F)
19938.2 C (46.8 F)
19947.9 C (46.2 F)
19956.2 C (43.2 F)
19966.2 C (43.2 F)
19977.8 C (46.0 F)
19988.4 C (47.1 F)
19998.9 C (48.0 F)
20008.7 C (47.7 F)
20018.2 C (46.8 F)
20027.8 C (46.0 F)
20037.8 C (46.0 F)
20047.2 C (45.0 F)
20057.4 C (45.3 F)
20068.5 C (47.3 F)
20077.0 C (44.6 F)
20087.0 C (44.6 F)
20096.6 C (43.9 F)
20106.5 C (43.7 F)
20118.3 C (46.9 F)
201210.3 C (50.5 F)
20137.5 C (45.5 F)
20148.3 C (46.9 F)
20156.6 C (43.9 F)
20165.2 C (41.4 F)
201710.3 C (50.5 F)
20187.0 C (44.6 F)
20199.7 C (49.5 F)
202010.3 C (50.5 F)
20219.2 C (48.6 F)
202210.4 C (50.7 F)
20237.2 C (45.0 F)
20249.9 C (49.8 F)
20258.4 C (47.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Kumejima by year The wettest day of the year at Kumejima, 1959 to 2025. The record is 386.0 mm (15.2 in) in 1969, marked on the chart; the median year is 160.8 mm (6.3 in). 01002003004001960198020002020Record: 386.0 mm (15.2 in) in 1969
The wettest day of the year at Kumejima, 1959 to 2025. The record is 386.0 mm (15.2 in) in 1969, marked on the chart; the median year is 160.8 mm (6.3 in).
Wettest day (Rx1day) at Kumejima by year
YearWettest day (Rx1day)
1959180.6 mm (7.1 in)
1960127.9 mm (5.0 in)
1961243.3 mm (9.6 in)
1962142.2 mm (5.6 in)
196395.4 mm (3.8 in)
1964242.7 mm (9.6 in)
1965122.3 mm (4.8 in)
1966225.3 mm (8.9 in)
1967126.9 mm (5.0 in)
1968146.0 mm (5.7 in)
1969386.0 mm (15.2 in)
1970162.0 mm (6.4 in)
1971220.0 mm (8.7 in)
1972273.5 mm (10.8 in)
197396.5 mm (3.8 in)
1974132.5 mm (5.2 in)
1975137.5 mm (5.4 in)
197678.5 mm (3.1 in)
1977150.0 mm (5.9 in)
1978255.0 mm (10.0 in)
1979152.0 mm (6.0 in)
1980230.0 mm (9.1 in)
1981188.5 mm (7.4 in)
1982203.0 mm (8.0 in)
1983257.0 mm (10.1 in)
1984138.5 mm (5.5 in)
1985125.0 mm (4.9 in)
1986131.0 mm (5.2 in)
1987158.0 mm (6.2 in)
1988129.0 mm (5.1 in)
1989124.0 mm (4.9 in)
1990116.1 mm (4.6 in)
1991207.0 mm (8.1 in)
1992167.9 mm (6.6 in)
1993126.0 mm (5.0 in)
1994256.0 mm (10.1 in)
1995230.1 mm (9.1 in)
1996162.1 mm (6.4 in)
1997186.9 mm (7.4 in)
1998366.0 mm (14.4 in)
1999147.1 mm (5.8 in)
2000106.9 mm (4.2 in)
200173.2 mm (2.9 in)
2002194.1 mm (7.6 in)
2003145.8 mm (5.7 in)
2004129.0 mm (5.1 in)
2005155.2 mm (6.1 in)
2006180.1 mm (7.1 in)
2007207.0 mm (8.1 in)
200864.0 mm (2.5 in)
2009110.0 mm (4.3 in)
2010160.8 mm (6.3 in)
2011266.2 mm (10.5 in)
2012341.9 mm (13.5 in)
2013141.0 mm (5.6 in)
2014100.1 mm (3.9 in)
2015175.0 mm (6.9 in)
2016110.5 mm (4.4 in)
2017225.0 mm (8.9 in)
2018210.1 mm (8.3 in)
2019208.0 mm (8.2 in)
2020178.1 mm (7.0 in)
2021224.0 mm (8.8 in)
2022130.0 mm (5.1 in)
2023275.1 mm (10.8 in)
2024200.9 mm (7.9 in)
202586.6 mm (3.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Kumejima by year The wettest five days of the year at Kumejima, 1959 to 2025. The record is 770.9 mm (30.4 in) in 2023, marked on the chart; the median year is 244.5 mm (9.6 in). 02004006008001960198020002020Record: 770.9 mm (30.4 in) in 2023
The wettest five days of the year at Kumejima, 1959 to 2025. The record is 770.9 mm (30.4 in) in 2023, marked on the chart; the median year is 244.5 mm (9.6 in).
Wettest five days (Rx5day) at Kumejima by year
YearWettest five days (Rx5day)
1959237.3 mm (9.3 in)
1960195.9 mm (7.7 in)
1961555.8 mm (21.9 in)
1962174.2 mm (6.9 in)
1963166.9 mm (6.6 in)
1964281.9 mm (11.1 in)
1965233.9 mm (9.2 in)
1966303.1 mm (11.9 in)
1967249.1 mm (9.8 in)
1968156.0 mm (6.1 in)
1969758.5 mm (29.9 in)
1970289.0 mm (11.4 in)
1971267.0 mm (10.5 in)
1972544.5 mm (21.4 in)
1973191.5 mm (7.5 in)
1974292.5 mm (11.5 in)
1975259.0 mm (10.2 in)
1976157.5 mm (6.2 in)
1977299.0 mm (11.8 in)
1978321.5 mm (12.7 in)
1979241.0 mm (9.5 in)
1980281.0 mm (11.1 in)
1981240.0 mm (9.4 in)
1982309.0 mm (12.2 in)
1983385.0 mm (15.2 in)
1984210.0 mm (8.3 in)
1985239.5 mm (9.4 in)
1986201.0 mm (7.9 in)
1987286.0 mm (11.3 in)
1988248.0 mm (9.8 in)
1989149.5 mm (5.9 in)
1990209.3 mm (8.2 in)
1991274.1 mm (10.8 in)
1992258.0 mm (10.2 in)
1993157.4 mm (6.2 in)
1994194.5 mm (7.7 in)
199532.5 mm (1.3 in)
1996224.8 mm (8.9 in)
1997140.2 mm (5.5 in)
1998310.2 mm (12.2 in)
1999161.9 mm (6.4 in)
2000n/a
2001160.7 mm (6.3 in)
2002n/a
2003n/a
200435.8 mm (1.4 in)
2005397.3 mm (15.6 in)
200670.6 mm (2.8 in)
2007149.1 mm (5.9 in)
200889.6 mm (3.5 in)
2009170.7 mm (6.7 in)
2010276.9 mm (10.9 in)
2011330.2 mm (13.0 in)
2012404.2 mm (15.9 in)
2013172.0 mm (6.8 in)
2014186.2 mm (7.3 in)
2015232.2 mm (9.1 in)
2016216.4 mm (8.5 in)
2017340.0 mm (13.4 in)
2018364.2 mm (14.3 in)
2019276.1 mm (10.9 in)
2020320.5 mm (12.6 in)
2021394.5 mm (15.5 in)
2022288.0 mm (11.3 in)
2023770.9 mm (30.4 in)
2024512.1 mm (20.2 in)
2025148.6 mm (5.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Kumejima by year The longest dry spell of the year at Kumejima, 1959 to 2025. The record is 36 days in 1988, marked on the chart; the median year is 15 days. 0102030401960198020002020Record: 36 days in 1988
The longest dry spell of the year at Kumejima, 1959 to 2025. The record is 36 days in 1988, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Kumejima by year
YearLongest dry spell (CDD)
195914 days
196027 days
196116 days
196213 days
196322 days
196422 days
196513 days
196620 days
196720 days
196818 days
196922 days
197020 days
197121 days
197228 days
197318 days
197416 days
197515 days
197615 days
197714 days
197818 days
197924 days
198021 days
198117 days
198220 days
198313 days
198413 days
198518 days
198620 days
198717 days
198836 days
198920 days
19905 days
19913 days
19924 days
19933 days
19941 day
19952 days
19961 day
19971 day
19981 day
199910 days
2000n/a
2001n/a
20022 days
20032 days
20042 days
20052 days
20062 days
20072 days
200815 days
200919 days
20108 days
201115 days
201216 days
201334 days
201411 days
201514 days
201615 days
201713 days
201820 days
201925 days
202010 days
202113 days
202211 days
202316 days
202419 days
20255 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

43 years, 1959 to 2022

A day with at least 165.0 mm (6.5 in) of rain is expected about once in 2 years. A day with at least 411.1 mm (16.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Kumejima: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years165.0 mm (6.5 in)
5 years224.8 mm (8.9 in)
10 years266.7 mm (10.5 in)
25 years322.5 mm (12.7 in)
50 years366.0 mm (14.4 in)Longer than the 43 years of record
100 years411.1 mm (16.2 in)Longer than the 43 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, 43 years of values from 1959 to 2022.

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: 386.0 mm (15.2 in) in 1969; 341.9 mm (13.5 in) in 2012; 273.5 mm (10.8 in) in 1972.

Download the Data

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