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Built 2026-10-19 (19 October 2026)

I Dunno Threshold Days by Year (ASN00012077)

3 fixed thresholds counted per year at I Dunno (ASN00012077): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for I Dunno Thresholds

  • I Dunno: days with 10 mm (0.39 in) or more of precipitation in 97 years, most in 1992 with 16.
  • I Dunno: days with 25 mm (0.98 in) or more of precipitation in 59 years, most in 1939 with 5.
  • I Dunno: days with 50 mm (1.97 in) or more of precipitation in 15 years, most in 1939 with 2.
  • 3 fixed thresholds have at least one qualifying day at I Dunno.
97 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at I Dunno Days per year at I Dunno with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 16 in 1992. 051015201926: 91927: 81928: 51929: 81930: 91931: 71932: 61933: 31934: 71935: 71936: 41937: 51938: 91939: 111940: 21941: 21942: 81943: 121944: 41945: 41946: 21947: 81948: 51949: 71950: 21951: 101952: 41953: 71954: 31955: 91957: 41958: 91959: 111960: 51961: 51962: 61963: 151964: 81965: 91966: 61967: 91968: 91969: 71970: 51971: 41972: 61973: 81974: 101975: 71976: 21977: 51978: 71979: 91983: 71984: 101985: 81986: 111987: 71988: 91989: 91990: 91991: 51992: 161993: 101994: 51995: 81996: 101997: 71998: 61999: 82000: 112001: 72002: 82003: 122004: 62005: 52006: 82007: 92008: 82009: 72010: 42011: 42012: 52013: 162014: 72015: 92016: 112017: 122018: 62019: 32020: 72021: 92022: 62023: 62024: 72025: 102026: 91926193619461957196719771990200020102020
Days per year at I Dunno with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 16 in 1992.
Days with 10 mm (0.39 in) or more of precipitation per year at I Dunno
YearDaysDecade average
192697.5
192787.5
192857.5
192987.5
193096.8
193176.8
193266.8
193336.8
193476.8
193576.8
193646.8
193756.8
193896.8
1939116.8
194025.4
194125.4
194285.4
1943125.4
194445.4
194545.4
194625.4
194785.4
194855.4
194975.4
195026.6
1951106.6
195246.6
195376.6
195436.6
195596.6
195746.6
195896.6
1959116.6
196057.9
196157.9
196267.9
1963157.9
196487.9
196597.9
196667.9
196797.9
196897.9
196977.9
197056.3
197146.3
197266.3
197386.3
1974106.3
197576.3
197626.3
197756.3
197876.3
197996.3
198378.7
1984108.7
198588.7
1986118.7
198778.7
198898.7
198998.7
199098.4
199158.4
1992168.4
1993108.4
199458.4
199588.4
1996108.4
199778.4
199868.4
199988.4
2000118.1
200178.1
200288.1
2003128.1
200468.1
200558.1
200688.1
200798.1
200888.1
200978.1
201047.7
201147.7
201257.7
2013167.7
201477.7
201597.7
2016117.7
2017127.7
201867.7
201937.7
202077.7
202197.7
202267.7
202367.7
202477.7
2025107.7
202697.7
First to last qualifying date each year at I Dunno For each year, a bar from the first to the last day at I Dunno meeting 10 mm (0.39 in). 1926: 6 February 1926 to 27 August 19261927: 20 March 1927 to 21 December 19271928: 22 January 1928 to 17 December 19281929: 3 January 1929 to 5 November 19291930: 6 March 1930 to 19 December 19301931: 24 February 1931 to 4 November 19311932: 9 April 1932 to 19 December 19321933: 9 January 1933 to 15 November 19331934: 1 April 1934 to 5 November 19341935: 13 February 1935 to 20 October 19351936: 19 January 1936 to 14 July 19361937: 1 March 1937 to 3 October 19371938: 17 January 1938 to 3 November 19381939: 12 January 1939 to 2 November 19391940: 7 May 1940 to 3 December 19401941: 24 October 1941 to 10 December 19411942: 16 March 1942 to 2 December 19421943: 12 February 1943 to 15 December 19431944: 5 April 1944 to 4 December 19441945: 24 June 1945 to 11 December 19451946: 5 August 1946 to 1 September 19461947: 17 February 1947 to 27 November 19471948: 23 February 1948 to 8 October 19481949: 17 May 1949 to 29 December 19491950: 10 May 1950 to 21 May 19501951: 2 January 1951 to 1 December 19511952: 23 January 1952 to 12 October 19521953: 2 February 1953 to 28 September 19531954: 26 May 1954 to 6 November 19541955: 15 January 1955 to 21 September 19551957: 18 February 1957 to 11 August 19571958: 28 January 1958 to 22 December 19581959: 3 January 1959 to 22 November 19591960: 2 January 1960 to 24 July 19601961: 27 January 1961 to 16 December 19611962: 20 March 1962 to 23 December 19621963: 11 January 1963 to 22 December 19631964: 30 January 1964 to 26 September 19641965: 14 February 1965 to 5 November 19651966: 2 January 1966 to 24 October 19661967: 23 January 1967 to 22 December 19671968: 28 January 1968 to 13 December 19681969: 29 January 1969 to 4 November 19691970: 17 February 1970 to 25 September 19701971: 29 March 1971 to 24 November 19711972: 6 January 1972 to 11 September 19721973: 25 April 1973 to 5 November 19731974: 8 March 1974 to 20 November 19741975: 8 March 1975 to 10 December 19751976: 28 February 1976 to 22 June 19761977: 22 February 1977 to 10 December 19771978: 15 February 1978 to 21 December 19781979: 16 February 1979 to 3 December 19791983: 23 June 1983 to 5 December 19831984: 1 January 1984 to 5 December 19841985: 10 February 1985 to 22 November 19851986: 22 February 1986 to 15 December 19861987: 10 January 1987 to 30 November 19871988: 11 March 1988 to 19 December 19881989: 6 March 1989 to 11 November 19891990: 13 January 1990 to 14 October 19901991: 28 April 1991 to 26 December 19911992: 10 February 1992 to 16 November 19921993: 18 March 1993 to 29 December 19931994: 30 May 1994 to 15 October 19941995: 13 January 1995 to 24 December 19951996: 8 February 1996 to 7 November 19961997: 5 February 1997 to 13 November 19971998: 11 March 1998 to 19 November 19981999: 5 January 1999 to 6 November 19992000: 15 January 2000 to 29 April 20002001: 21 January 2001 to 1 December 20012002: 23 March 2002 to 29 December 20022003: 3 February 2003 to 25 November 20032004: 6 January 2004 to 8 July 20042005: 1 April 2005 to 7 October 20052006: 3 January 2006 to 22 July 20062007: 4 January 2007 to 17 December 20072008: 24 May 2008 to 12 December 20082009: 19 January 2009 to 14 November 20092010: 7 February 2010 to 22 December 20102011: 6 January 2011 to 27 October 20112012: 6 January 2012 to 25 November 20122013: 13 January 2013 to 28 November 20132014: 23 January 2014 to 21 December 20142015: 31 March 2015 to 7 November 20152016: 19 January 2016 to 13 December 20162017: 17 January 2017 to 12 December 20172018: 19 February 2018 to 11 November 20182019: 11 June 2019 to 15 August 20192020: 12 February 2020 to 3 November 20202021: 27 January 2021 to 28 October 20212022: 12 February 2022 to 7 November 20222023: 17 January 2023 to 11 August 20232024: 3 January 2024 to 17 October 20242025: 13 March 2025 to 23 November 20252026: 11 February 2026 to 28 August 202619261939195219661979199520082021JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at I Dunno meeting 10 mm (0.39 in).
First to last qualifying date each year at I Dunno
YearFirst dateLast date
19261926-02-061926-08-27
19271927-03-201927-12-21
19281928-01-221928-12-17
19291929-01-031929-11-05
19301930-03-061930-12-19
19311931-02-241931-11-04
19321932-04-091932-12-19
19331933-01-091933-11-15
19341934-04-011934-11-05
19351935-02-131935-10-20
19361936-01-191936-07-14
19371937-03-011937-10-03
19381938-01-171938-11-03
19391939-01-121939-11-02
19401940-05-071940-12-03
19411941-10-241941-12-10
19421942-03-161942-12-02
19431943-02-121943-12-15
19441944-04-051944-12-04
19451945-06-241945-12-11
19461946-08-051946-09-01
19471947-02-171947-11-27
19481948-02-231948-10-08
19491949-05-171949-12-29
19501950-05-101950-05-21
19511951-01-021951-12-01
19521952-01-231952-10-12
19531953-02-021953-09-28
19541954-05-261954-11-06
19551955-01-151955-09-21
19571957-02-181957-08-11
19581958-01-281958-12-22
19591959-01-031959-11-22
19601960-01-021960-07-24
19611961-01-271961-12-16
19621962-03-201962-12-23
19631963-01-111963-12-22
19641964-01-301964-09-26
19651965-02-141965-11-05
19661966-01-021966-10-24
19671967-01-231967-12-22
19681968-01-281968-12-13
19691969-01-291969-11-04
19701970-02-171970-09-25
19711971-03-291971-11-24
19721972-01-061972-09-11
19731973-04-251973-11-05
19741974-03-081974-11-20
19751975-03-081975-12-10
19761976-02-281976-06-22
19771977-02-221977-12-10
19781978-02-151978-12-21
19791979-02-161979-12-03
19831983-06-231983-12-05
19841984-01-011984-12-05
19851985-02-101985-11-22
19861986-02-221986-12-15
19871987-01-101987-11-30
19881988-03-111988-12-19
19891989-03-061989-11-11
19901990-01-131990-10-14
19911991-04-281991-12-26
19921992-02-101992-11-16
19931993-03-181993-12-29
19941994-05-301994-10-15
19951995-01-131995-12-24
19961996-02-081996-11-07
19971997-02-051997-11-13
19981998-03-111998-11-19
19991999-01-051999-11-06
20002000-01-152000-04-29
20012001-01-212001-12-01
20022002-03-232002-12-29
20032003-02-032003-11-25
20042004-01-062004-07-08
20052005-04-012005-10-07
20062006-01-032006-07-22
20072007-01-042007-12-17
20082008-05-242008-12-12
20092009-01-192009-11-14
20102010-02-072010-12-22
20112011-01-062011-10-27
20122012-01-062012-11-25
20132013-01-132013-11-28
20142014-01-232014-12-21
20152015-03-312015-11-07
20162016-01-192016-12-13
20172017-01-172017-12-12
20182018-02-192018-11-11
20192019-06-112019-08-15
20202020-02-122020-11-03
20212021-01-272021-10-28
20222022-02-122022-11-07
20232023-01-172023-08-11
20242024-01-032024-10-17
20252025-03-132025-11-23
20262026-02-112026-08-28

Every Fixed Threshold

Fixed thresholds at I Dunno
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain971619929
25 mm (0.98 in): Days with 25 mm or more rain59519391
50 mm (1.97 in): Days with 50 mm or more rain15219391

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1926.

Download the Data

  • Data for I Dunno 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 (2026-10-17).