Built 2026-10-19 (19 October 2026)

Kumejima Threshold Days by Year (JA000047929)

10 fixed thresholds counted per year at Kumejima (JA000047929): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Kumejima Thresholds

  • Kumejima: days with a maximum temperature at or above 30 C (86 F) in 50 years, most in 2016 with 136.
  • Kumejima: days with a maximum temperature at or above 90 F (32.2 C) in 44 years, most in 2017 with 74.
  • Kumejima: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 2016 with 77.
  • Kumejima: days with 25 mm (0.98 in) or more of precipitation in 44 years, most in 1966 with 39.
  • 10 fixed thresholds have at least one qualifying day at Kumejima.
50 years with a qualifying day
Days at or above 30 C (86 F) per year at Kumejima Days per year at Kumejima with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 136 in 2016. 0501001501959: 741960: 681961: 941962: 931963: 911964: 771965: 671966: 641967: 791968: 651969: 861970: 901971: 951972: 531973: 741974: 671975: 881976: 731977: 831978: 571979: 791980: 1011981: 721982: 621983: 951984: 1001985: 721986: 941987: 781988: 931989: 891996: 942003: 922005: 1132006: 912007: 1082008: 1142009: 1012010: 982011: 1032012: 882013: 1232014: 1072015: 1092016: 1362017: 1162018: 1012021: 1252022: 1122025: 11959196419691974197919841989200720122017
Days per year at Kumejima with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 136 in 2016.
Days at or above 30 C (86 F) per year at Kumejima
YearDaysDecade average
19597474
19606878.4
19619478.4
19629378.4
19639178.4
19647778.4
19656778.4
19666478.4
19677978.4
19686578.4
19698678.4
19709075.9
19719575.9
19725375.9
19737475.9
19746775.9
19758875.9
19767375.9
19778375.9
19785775.9
19797975.9
198010185.6
19817285.6
19826285.6
19839585.6
198410085.6
19857285.6
19869485.6
19877885.6
19889385.6
19898985.6
19969494
200392103.2
2005113103.2
200691103.2
2007108103.2
2008114103.2
2009101103.2
201098109
2011103109
201288109
2013123109
2014107109
2015109109
2016136109
2017116109
2018101109
202112579.3
202211279.3
2025179.3
First to last qualifying date each year at Kumejima For each year, a bar from the first to the last day at Kumejima meeting 30 C (86 F). 1959: 17 June 1959 to 22 September 19591960: 21 June 1960 to 30 September 19601961: 4 June 1961 to 28 September 19611962: 4 June 1962 to 13 October 19621963: 21 May 1963 to 21 September 19631964: 25 June 1964 to 5 October 19641965: 23 June 1965 to 6 October 19651966: 13 May 1966 to 21 September 19661967: 22 June 1967 to 11 September 19671968: 26 June 1968 to 22 September 19681969: 1 July 1969 to 4 October 19691970: 19 June 1970 to 14 October 19701971: 4 June 1971 to 10 October 19711972: 19 June 1972 to 23 September 19721973: 16 June 1973 to 10 October 19731974: 22 May 1974 to 4 October 19741975: 19 June 1975 to 12 October 19751976: 8 June 1976 to 21 September 19761977: 10 June 1977 to 7 October 19771978: 28 June 1978 to 29 September 19781979: 20 June 1979 to 25 September 19791980: 9 June 1980 to 26 September 19801981: 18 June 1981 to 13 October 19811982: 18 June 1982 to 20 September 19821983: 20 June 1983 to 17 October 19831984: 10 June 1984 to 3 October 19841985: 20 May 1985 to 28 September 19851986: 20 May 1986 to 19 September 19861987: 25 May 1987 to 26 October 19871988: 8 June 1988 to 24 September 19881989: 6 June 1989 to 28 September 19891996: 31 March 1996 to 24 September 19962003: 20 June 2003 to 1 October 20032005: 1 May 2005 to 14 October 20052006: 11 May 2006 to 21 October 20062007: 24 May 2007 to 12 October 20072008: 25 May 2008 to 7 November 20082009: 10 June 2009 to 6 October 20092010: 19 June 2010 to 25 October 20102011: 6 June 2011 to 14 October 20112012: 2 June 2012 to 23 September 20122013: 28 May 2013 to 11 October 20132014: 26 May 2014 to 9 October 20142015: 16 May 2015 to 5 October 20152016: 26 April 2016 to 28 October 20162017: 12 May 2017 to 19 October 20172018: 14 May 2018 to 27 September 20182021: 13 May 2021 to 16 October 20212022: 29 April 2022 to 22 October 20222025: 9 June 2025 to 9 June 202519591966197319801987200720142025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Kumejima meeting 30 C (86 F).
First to last qualifying date each year at Kumejima
YearFirst dateLast date
19591959-06-171959-09-22
19601960-06-211960-09-30
19611961-06-041961-09-28
19621962-06-041962-10-13
19631963-05-211963-09-21
19641964-06-251964-10-05
19651965-06-231965-10-06
19661966-05-131966-09-21
19671967-06-221967-09-11
19681968-06-261968-09-22
19691969-07-011969-10-04
19701970-06-191970-10-14
19711971-06-041971-10-10
19721972-06-191972-09-23
19731973-06-161973-10-10
19741974-05-221974-10-04
19751975-06-191975-10-12
19761976-06-081976-09-21
19771977-06-101977-10-07
19781978-06-281978-09-29
19791979-06-201979-09-25
19801980-06-091980-09-26
19811981-06-181981-10-13
19821982-06-181982-09-20
19831983-06-201983-10-17
19841984-06-101984-10-03
19851985-05-201985-09-28
19861986-05-201986-09-19
19871987-05-251987-10-26
19881988-06-081988-09-24
19891989-06-061989-09-28
19961996-03-311996-09-24
20032003-06-202003-10-01
20052005-05-012005-10-14
20062006-05-112006-10-21
20072007-05-242007-10-12
20082008-05-252008-11-07
20092009-06-102009-10-06
20102010-06-192010-10-25
20112011-06-062011-10-14
20122012-06-022012-09-23
20132013-05-282013-10-11
20142014-05-262014-10-09
20152015-05-162015-10-05
20162016-04-262016-10-28
20172017-05-122017-10-19
20182018-05-142018-09-27
20212021-05-132021-10-16
20222022-04-292022-10-22
20252025-06-092025-06-09

Every Fixed Threshold

Fixed thresholds at Kumejima
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days5013620161
35 C (95 F): Days2120031
90 F (32.2 C): Days4474201755
20 C (68 F): Tropical nights (min32220196765
25 C (77 F): Days with min32101196143
10 mm (0.39 in): Days with 10 mm or more rain4477201638
25 mm (0.98 in): Days with 25 mm or more rain4439196617
50 mm (1.97 in): Days with 50 mm or more rain441719666
100 mm (3.94 in): Days with 100 mm or more rain40719664
200 mm (7.87 in): Days with 200 mm or more rain16320121

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1959.

Download the Data

  • 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). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).