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Built 2026-10-18 (18 October 2026)

Isseka Threshold Days by Year

4 fixed thresholds counted per year at Isseka (ASN00008065): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Isseka Thresholds

  • Isseka: days with 10 mm (0.39 in) or more of precipitation in 104 years, most in 1917 with 27.
  • Isseka: days with 25 mm (0.98 in) or more of precipitation in 95 years, most in 1965 with 8.
  • Isseka: days with 50 mm (1.97 in) or more of precipitation in 30 years, most in 1937 with 2.
  • Isseka: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 2000 with 1.
  • 4 fixed thresholds have at least one qualifying day at Isseka.
104 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Isseka Days per year at Isseka with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 1917. 01020301916: 161917: 271918: 161919: 161920: 191921: 191922: 91923: 191924: 131925: 201926: 211927: 201928: 121929: 161930: 181931: 171932: 121933: 211934: 191935: 101936: 121937: 111938: 111939: 251940: 71941: 141942: 121943: 141944: 141945: 171946: 181947: 161948: 71949: 121950: 121951: 171955: 201956: 121957: 141958: 211959: 131960: 131961: 151962: 151963: 251964: 191965: 171966: 141967: 91968: 221969: 51970: 201971: 101972: 111973: 171974: 261975: 201976: 91977: 61978: 111979: 101980: 131981: 171982: 141983: 101984: 181985: 101986: 161987: 121988: 101989: 101990: 121991: 141992: 121993: 101994: 111995: 171996: 201997: 171999: 202000: 132001: 142002: 142003: 172004: 112005: 132006: 42007: 62008: 182011: 172012: 102013: 102014: 122015: 112016: 172017: 112018: 152019: 82020: 102021: 212023: 62024: 182025: 202026: 121916192719381949196319741985199620082021
Days per year at Isseka with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 1917.
Days with 10 mm (0.39 in) or more of precipitation per year at Isseka
YearDaysDecade average
19161618.8
19172718.8
19181618.8
19191618.8
19201916.8
19211916.8
1922916.8
19231916.8
19241316.8
19252016.8
19262116.8
19272016.8
19281216.8
19291616.8
19301815.6
19311715.6
19321215.6
19332115.6
19341915.6
19351015.6
19361215.6
19371115.6
19381115.6
19392515.6
1940713.1
19411413.1
19421213.1
19431413.1
19441413.1
19451713.1
19461813.1
19471613.1
1948713.1
19491213.1
19501215.6
19511715.6
19552015.6
19561215.6
19571415.6
19582115.6
19591315.6
19601315.4
19611515.4
19621515.4
19632515.4
19641915.4
19651715.4
19661415.4
1967915.4
19682215.4
1969515.4
19702014
19711014
19721114
19731714
19742614
19752014
1976914
1977614
19781114
19791014
19801313
19811713
19821413
19831013
19841813
19851013
19861613
19871213
19881013
19891013
19901214.8
19911414.8
19921214.8
19931014.8
19941114.8
19951714.8
19962014.8
19971714.8
19992014.8
20001312.2
20011412.2
20021412.2
20031712.2
20041112.2
20051312.2
2006412.2
2007612.2
20081812.2
20111712.3
20121012.3
20131012.3
20141212.3
20151112.3
20161712.3
20171112.3
20181512.3
2019812.3
20201014.5
20212114.5
2023614.5
20241814.5
20252014.5
20261214.5
First to last qualifying date each year at Isseka For each year, a bar from the first to the last day at Isseka meeting 10 mm (0.39 in). 1916: 20 January 1916 to 5 October 19161917: 18 March 1917 to 4 December 19171918: 22 February 1918 to 16 September 19181919: 17 April 1919 to 5 August 19191920: 12 March 1920 to 12 September 19201921: 19 February 1921 to 29 December 19211922: 14 May 1922 to 8 December 19221923: 23 April 1923 to 4 October 19231924: 24 May 1924 to 2 October 19241925: 17 May 1925 to 26 December 19251926: 16 April 1926 to 19 November 19261927: 14 March 1927 to 19 September 19271928: 29 January 1928 to 21 October 19281929: 3 May 1929 to 28 August 19291930: 15 April 1930 to 18 October 19301931: 3 May 1931 to 27 December 19311932: 13 April 1932 to 22 October 19321933: 8 March 1933 to 1 December 19331934: 8 March 1934 to 22 September 19341935: 6 January 1935 to 29 August 19351936: 19 April 1936 to 2 August 19361937: 18 April 1937 to 27 August 19371938: 15 March 1938 to 2 November 19381939: 19 January 1939 to 10 November 19391940: 14 May 1940 to 6 November 19401941: 4 April 1941 to 20 September 19411942: 14 April 1942 to 31 July 19421943: 31 January 1943 to 8 August 19431944: 18 May 1944 to 26 August 19441945: 15 May 1945 to 24 August 19451946: 2 January 1946 to 20 August 19461947: 28 April 1947 to 25 October 19471948: 30 April 1948 to 29 August 19481949: 13 February 1949 to 1 September 19491950: 17 May 1950 to 10 October 19501951: 20 February 1951 to 1 October 19511955: 15 February 1955 to 25 September 19551956: 5 March 1956 to 28 July 19561957: 7 May 1957 to 23 August 19571958: 22 January 1958 to 14 October 19581959: 28 May 1959 to 19 December 19591960: 1 January 1960 to 11 September 19601961: 14 April 1961 to 30 August 19611962: 30 January 1962 to 2 October 19621963: 17 February 1963 to 26 August 19631964: 9 April 1964 to 9 October 19641965: 24 May 1965 to 24 November 19651966: 4 April 1966 to 9 October 19661967: 28 May 1967 to 4 October 19671968: 27 January 1968 to 4 November 19681969: 18 May 1969 to 3 November 19691970: 17 February 1970 to 4 October 19701971: 28 March 1971 to 26 August 19711972: 31 May 1972 to 8 October 19721973: 11 May 1973 to 8 December 19731974: 2 January 1974 to 20 October 19741975: 1 April 1975 to 15 October 19751976: 12 April 1976 to 11 November 19761977: 16 May 1977 to 26 December 19771978: 20 May 1978 to 2 October 19781979: 14 March 1979 to 18 August 19791980: 21 April 1980 to 22 October 19801981: 22 May 1981 to 2 October 19811982: 21 January 1982 to 4 October 19821983: 2 June 1983 to 6 September 19831984: 21 February 1984 to 8 November 19841985: 26 May 1985 to 22 September 19851986: 30 January 1986 to 22 August 19861987: 30 March 1987 to 1 November 19871988: 21 May 1988 to 30 November 19881989: 25 February 1989 to 18 August 19891990: 28 January 1990 to 24 September 19901991: 10 April 1991 to 13 November 19911992: 10 June 1992 to 5 September 19921993: 1 May 1993 to 13 November 19931994: 28 February 1994 to 31 August 19941995: 28 April 1995 to 4 September 19951996: 19 April 1996 to 6 November 19961997: 2 February 1997 to 6 September 19971999: 20 March 1999 to 21 September 19992000: 10 March 2000 to 6 September 20002001: 21 January 2001 to 22 October 20012002: 29 January 2002 to 5 October 20022003: 30 March 2003 to 16 November 20032004: 25 April 2004 to 24 August 20042005: 1 April 2005 to 18 August 20052006: 27 February 2006 to 1 August 20062007: 23 June 2007 to 11 December 20072008: 27 March 2008 to 24 November 20082011: 18 February 2011 to 27 October 20112012: 29 April 2012 to 28 December 20122013: 14 January 2013 to 9 October 20132014: 25 April 2014 to 22 September 20142015: 14 March 2015 to 23 December 20152016: 18 January 2016 to 10 October 20162017: 29 January 2017 to 18 November 20172018: 15 January 2018 to 30 August 20182019: 7 June 2019 to 30 August 20192020: 22 February 2020 to 2 November 20202021: 6 February 2021 to 26 October 20212023: 30 March 2023 to 14 September 20232024: 25 February 2024 to 20 November 20242025: 30 May 2025 to 6 November 20252026: 10 February 2026 to 27 August 202619161929194219581971198419972013JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Isseka meeting 10 mm (0.39 in).
First to last qualifying date each year at Isseka
YearFirst dateLast date
19161916-01-201916-10-05
19171917-03-181917-12-04
19181918-02-221918-09-16
19191919-04-171919-08-05
19201920-03-121920-09-12
19211921-02-191921-12-29
19221922-05-141922-12-08
19231923-04-231923-10-04
19241924-05-241924-10-02
19251925-05-171925-12-26
19261926-04-161926-11-19
19271927-03-141927-09-19
19281928-01-291928-10-21
19291929-05-031929-08-28
19301930-04-151930-10-18
19311931-05-031931-12-27
19321932-04-131932-10-22
19331933-03-081933-12-01
19341934-03-081934-09-22
19351935-01-061935-08-29
19361936-04-191936-08-02
19371937-04-181937-08-27
19381938-03-151938-11-02
19391939-01-191939-11-10
19401940-05-141940-11-06
19411941-04-041941-09-20
19421942-04-141942-07-31
19431943-01-311943-08-08
19441944-05-181944-08-26
19451945-05-151945-08-24
19461946-01-021946-08-20
19471947-04-281947-10-25
19481948-04-301948-08-29
19491949-02-131949-09-01
19501950-05-171950-10-10
19511951-02-201951-10-01
19551955-02-151955-09-25
19561956-03-051956-07-28
19571957-05-071957-08-23
19581958-01-221958-10-14
19591959-05-281959-12-19
19601960-01-011960-09-11
19611961-04-141961-08-30
19621962-01-301962-10-02
19631963-02-171963-08-26
19641964-04-091964-10-09
19651965-05-241965-11-24
19661966-04-041966-10-09
19671967-05-281967-10-04
19681968-01-271968-11-04
19691969-05-181969-11-03
19701970-02-171970-10-04
19711971-03-281971-08-26
19721972-05-311972-10-08
19731973-05-111973-12-08
19741974-01-021974-10-20
19751975-04-011975-10-15
19761976-04-121976-11-11
19771977-05-161977-12-26
19781978-05-201978-10-02
19791979-03-141979-08-18
19801980-04-211980-10-22
19811981-05-221981-10-02
19821982-01-211982-10-04
19831983-06-021983-09-06
19841984-02-211984-11-08
19851985-05-261985-09-22
19861986-01-301986-08-22
19871987-03-301987-11-01
19881988-05-211988-11-30
19891989-02-251989-08-18
19901990-01-281990-09-24
19911991-04-101991-11-13
19921992-06-101992-09-05
19931993-05-011993-11-13
19941994-02-281994-08-31
19951995-04-281995-09-04
19961996-04-191996-11-06
19971997-02-021997-09-06
19991999-03-201999-09-21
20002000-03-102000-09-06
20012001-01-212001-10-22
20022002-01-292002-10-05
20032003-03-302003-11-16
20042004-04-252004-08-24
20052005-04-012005-08-18
20062006-02-272006-08-01
20072007-06-232007-12-11
20082008-03-272008-11-24
20112011-02-182011-10-27
20122012-04-292012-12-28
20132013-01-142013-10-09
20142014-04-252014-09-22
20152015-03-142015-12-23
20162016-01-182016-10-10
20172017-01-292017-11-18
20182018-01-152018-08-30
20192019-06-072019-08-30
20202020-02-222020-11-02
20212021-02-062021-10-26
20232023-03-302023-09-14
20242024-02-252024-11-20
20252025-05-302025-11-06
20262026-02-102026-08-27

Every Fixed Threshold

Fixed thresholds at Isseka
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain10427191712
25 mm (0.98 in): Days with 25 mm or more rain95819653
50 mm (1.97 in): Days with 50 mm or more rain30219371
100 mm (3.94 in): Days with 100 mm or more rain1120001

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1916.

Download the Data

  • Data for Isseka 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). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-12).