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Built 2026-10-19 (19 October 2026)

Itapiuna Threshold Days by Year (BR028921110)

4 fixed thresholds counted per year at Itapiuna (BR028921110): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Itapiuna Thresholds

  • Itapiuna: days with 10 mm (0.39 in) or more of precipitation in 36 years, most in 1974 with 53.
  • Itapiuna: days with 25 mm (0.98 in) or more of precipitation in 36 years, most in 1974 with 24.
  • Itapiuna: days with 50 mm (1.97 in) or more of precipitation in 26 years, most in 1974 with 9.
  • Itapiuna: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1977 with 1.
  • 4 fixed thresholds have at least one qualifying day at Itapiuna.
36 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Itapiuna Days per year at Itapiuna with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 53 in 1974. 02040601917: 311918: 101919: 41920: 211921: 441922: 341923: 251924: 401929: 331930: 161931: 221933: 281934: 381935: 241936: 281962: 241963: 331964: 411965: 271966: 241967: 251968: 291969: 301970: 211971: 311972: 151973: 321974: 531975: 331976: 191977: 441978: 201979: 141981: 171982: 251983: 21191719211929193419631967197119751979
Days per year at Itapiuna with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 53 in 1974.
Days with 10 mm (0.39 in) or more of precipitation per year at Itapiuna
YearDaysDecade average
19173115
19181015
1919415
19202132.8
19214432.8
19223432.8
19232532.8
19244032.8
19293332.8
19301626
19312226
19332826
19343826
19352426
19362826
19622429.1
19633329.1
19644129.1
19652729.1
19662429.1
19672529.1
19682929.1
19693029.1
19702128.2
19713128.2
19721528.2
19733228.2
19745328.2
19753328.2
19761928.2
19774428.2
19782028.2
19791428.2
19811721
19822521
19832121
First to last qualifying date each year at Itapiuna For each year, a bar from the first to the last day at Itapiuna meeting 10 mm (0.39 in). 1917: 7 February 1917 to 20 December 19171918: 8 January 1918 to 31 March 19181919: 1 January 1919 to 1 May 19191920: 4 March 1920 to 11 December 19201921: 16 January 1921 to 18 July 19211922: 24 January 1922 to 30 November 19221923: 9 January 1923 to 5 June 19231924: 24 January 1924 to 30 April 19241929: 25 January 1929 to 2 December 19291930: 20 January 1930 to 17 June 19301931: 1 January 1931 to 14 June 19311933: 14 January 1933 to 11 December 19331934: 22 January 1934 to 28 December 19341935: 3 January 1935 to 24 June 19351936: 9 February 1936 to 5 July 19361962: 22 January 1962 to 17 December 19621963: 13 January 1963 to 28 December 19631964: 5 January 1964 to 17 September 19641965: 27 January 1965 to 26 June 19651966: 19 February 1966 to 14 July 19661967: 1 January 1967 to 24 June 19671968: 12 January 1968 to 6 July 19681969: 7 January 1969 to 6 August 19691970: 20 January 1970 to 8 November 19701971: 20 January 1971 to 16 December 19711972: 22 January 1972 to 11 July 19721973: 12 January 1973 to 20 December 19731974: 12 January 1974 to 29 December 19741975: 3 February 1975 to 6 December 19751976: 1 January 1976 to 24 August 19761977: 14 January 1977 to 31 December 19771978: 11 February 1978 to 3 December 19781979: 23 February 1979 to 27 November 19791981: 26 January 1981 to 21 December 19811982: 13 January 1982 to 21 June 19821983: 8 February 1983 to 9 May 198319171922193119621967197219771983JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Itapiuna meeting 10 mm (0.39 in).
First to last qualifying date each year at Itapiuna
YearFirst dateLast date
19171917-02-071917-12-20
19181918-01-081918-03-31
19191919-01-011919-05-01
19201920-03-041920-12-11
19211921-01-161921-07-18
19221922-01-241922-11-30
19231923-01-091923-06-05
19241924-01-241924-04-30
19291929-01-251929-12-02
19301930-01-201930-06-17
19311931-01-011931-06-14
19331933-01-141933-12-11
19341934-01-221934-12-28
19351935-01-031935-06-24
19361936-02-091936-07-05
19621962-01-221962-12-17
19631963-01-131963-12-28
19641964-01-051964-09-17
19651965-01-271965-06-26
19661966-02-191966-07-14
19671967-01-011967-06-24
19681968-01-121968-07-06
19691969-01-071969-08-06
19701970-01-201970-11-08
19711971-01-201971-12-16
19721972-01-221972-07-11
19731973-01-121973-12-20
19741974-01-121974-12-29
19751975-02-031975-12-06
19761976-01-011976-08-24
19771977-01-141977-12-31
19781978-02-111978-12-03
19791979-02-231979-11-27
19811981-01-261981-12-21
19821982-01-131982-06-21
19831983-02-081983-05-09

Every Fixed Threshold

Fixed thresholds at Itapiuna
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3653197421
25 mm (0.98 in): Days with 25 mm or more rain362419745
50 mm (1.97 in): Days with 50 mm or more rain26919741
100 mm (3.94 in): Days with 100 mm or more rain1119771

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1917.

Download the Data

  • Data for Itapiuna 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).