Daily records
Page built 2026-10-19
Data as of 2025-12-31
Search
Built 2026-10-19 (19 October 2026)

Iboacu Threshold Days by Year (BR027687190)

4 fixed thresholds counted per year at Iboacu (BR027687190): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Iboacu Thresholds

  • Iboacu: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 1974 with 69.
  • Iboacu: days with 25 mm (0.98 in) or more of precipitation in 46 years, most in 1947 with 28.
  • Iboacu: days with 50 mm (1.97 in) or more of precipitation in 45 years, most in 1981 with 9.
  • Iboacu: days with 100 mm (3.94 in) or more of precipitation in 10 years, most in 1955 with 2.
  • 4 fixed thresholds have at least one qualifying day at Iboacu.
46 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Iboacu Days per year at Iboacu with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 69 in 1974. 0204060801934: 541935: 511936: 341937: 371938: 361939: 371940: 421941: 191942: 121943: 251944: 341945: 561946: 301947: 591948: 301949: 461950: 461951: 221952: 281953: 271954: 291955: 441956: 381958: 81959: 431961: 231962: 341963: 481964: 631965: 441966: 251967: 281968: 431969: 471970: 321971: 551972: 421973: 621974: 691975: 631976: 451977: 501978: 411979: 261980: 341981: 381934193919441949195419611966197119761981
Days per year at Iboacu with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 69 in 1974.
Days with 10 mm (0.39 in) or more of precipitation per year at Iboacu
YearDaysDecade average
19345441.5
19355141.5
19363441.5
19373741.5
19383641.5
19393741.5
19404235.3
19411935.3
19421235.3
19432535.3
19443435.3
19455635.3
19463035.3
19475935.3
19483035.3
19494635.3
19504631.7
19512231.7
19522831.7
19532731.7
19542931.7
19554431.7
19563831.7
1958831.7
19594331.7
19612339.4
19623439.4
19634839.4
19646339.4
19654439.4
19662539.4
19672839.4
19684339.4
19694739.4
19703248.5
19715548.5
19724248.5
19736248.5
19746948.5
19756348.5
19764548.5
19775048.5
19784148.5
19792648.5
19803436
19813836
First to last qualifying date each year at Iboacu For each year, a bar from the first to the last day at Iboacu meeting 10 mm (0.39 in). 1934: 15 February 1934 to 23 December 19341935: 19 January 1935 to 29 December 19351936: 4 January 1936 to 15 June 19361937: 26 January 1937 to 12 September 19371938: 6 January 1938 to 3 June 19381939: 4 January 1939 to 27 May 19391940: 18 January 1940 to 20 December 19401941: 11 February 1941 to 27 June 19411942: 9 February 1942 to 4 December 19421943: 26 January 1943 to 22 December 19431944: 24 January 1944 to 24 December 19441945: 2 January 1945 to 9 December 19451946: 3 January 1946 to 31 December 19461947: 12 January 1947 to 28 December 19471948: 4 January 1948 to 22 December 19481949: 9 January 1949 to 26 December 19491950: 14 January 1950 to 20 December 19501951: 29 January 1951 to 26 December 19511952: 9 January 1952 to 21 May 19521953: 17 January 1953 to 25 May 19531954: 1 February 1954 to 27 November 19541955: 20 January 1955 to 14 May 19551956: 2 February 1956 to 24 June 19561958: 14 January 1958 to 6 December 19581959: 20 January 1959 to 7 August 19591961: 13 February 1961 to 19 July 19611962: 23 January 1962 to 17 July 19621963: 11 January 1963 to 31 December 19631964: 8 January 1964 to 3 August 19641965: 24 January 1965 to 3 October 19651966: 21 January 1966 to 17 July 19661967: 16 January 1967 to 30 December 19671968: 13 January 1968 to 27 December 19681969: 8 January 1969 to 9 August 19691970: 18 January 1970 to 14 December 19701971: 10 January 1971 to 16 December 19711972: 13 January 1972 to 31 December 19721973: 5 January 1973 to 16 December 19731974: 16 January 1974 to 30 December 19741975: 3 January 1975 to 21 December 19751976: 2 January 1976 to 31 December 19761977: 21 January 1977 to 31 December 19771978: 8 January 1978 to 12 December 19781979: 18 January 1979 to 15 May 19791980: 14 January 1980 to 7 June 19801981: 11 January 1981 to 21 December 198119341940194619521959196619721978JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Iboacu meeting 10 mm (0.39 in).
First to last qualifying date each year at Iboacu
YearFirst dateLast date
19341934-02-151934-12-23
19351935-01-191935-12-29
19361936-01-041936-06-15
19371937-01-261937-09-12
19381938-01-061938-06-03
19391939-01-041939-05-27
19401940-01-181940-12-20
19411941-02-111941-06-27
19421942-02-091942-12-04
19431943-01-261943-12-22
19441944-01-241944-12-24
19451945-01-021945-12-09
19461946-01-031946-12-31
19471947-01-121947-12-28
19481948-01-041948-12-22
19491949-01-091949-12-26
19501950-01-141950-12-20
19511951-01-291951-12-26
19521952-01-091952-05-21
19531953-01-171953-05-25
19541954-02-011954-11-27
19551955-01-201955-05-14
19561956-02-021956-06-24
19581958-01-141958-12-06
19591959-01-201959-08-07
19611961-02-131961-07-19
19621962-01-231962-07-17
19631963-01-111963-12-31
19641964-01-081964-08-03
19651965-01-241965-10-03
19661966-01-211966-07-17
19671967-01-161967-12-30
19681968-01-131968-12-27
19691969-01-081969-08-09
19701970-01-181970-12-14
19711971-01-101971-12-16
19721972-01-131972-12-31
19731973-01-051973-12-16
19741974-01-161974-12-30
19751975-01-031975-12-21
19761976-01-021976-12-31
19771977-01-211977-12-31
19781978-01-081978-12-12
19791979-01-181979-05-15
19801980-01-141980-06-07
19811981-01-111981-12-21

Every Fixed Threshold

Fixed thresholds at Iboacu
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4669197438
25 mm (0.98 in): Days with 25 mm or more rain4628194716
50 mm (1.97 in): Days with 50 mm or more rain45919819
100 mm (3.94 in): Days with 100 mm or more rain10219551

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1934.

Download the Data

  • Data for Iboacu 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).