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Built 2026-10-19 (19 October 2026)

Itatira Threshold Days by Year (BR028900780)

4 fixed thresholds counted per year at Itatira (BR028900780): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Itatira Thresholds

  • Itatira: days with 10 mm (0.39 in) or more of precipitation in 39 years, most in 1940 with 46.
  • Itatira: days with 25 mm (0.98 in) or more of precipitation in 39 years, most in 1940 with 25.
  • Itatira: days with 50 mm (1.97 in) or more of precipitation in 29 years, most in 1955 with 9.
  • Itatira: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1953 with 1.
  • 4 fixed thresholds have at least one qualifying day at Itatira.
39 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Itatira Days per year at Itatira with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 46 in 1940. 02040601913: 311914: 261915: 61916: 231917: 371918: 201919: 51920: 281921: 351922: 291923: 121924: 431925: 231926: 211927: 211928: 161929: 321930: 161937: 271938: 231939: 281940: 461941: 211942: 141943: 171944: 251945: 371948: 311950: 351951: 301952: 261953: 301954: 141955: 381962: 351963: 401968: 241969: 231970: 121913191719211925192919391943195019541968
Days per year at Itatira with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 46 in 1940.
Days with 10 mm (0.39 in) or more of precipitation per year at Itatira
YearDaysDecade average
19133121.1
19142621.1
1915621.1
19162321.1
19173721.1
19182021.1
1919521.1
19202826
19213526
19222926
19231226
19244326
19252326
19262126
19272126
19281626
19293226
19301623.5
19372723.5
19382323.5
19392823.5
19404627.3
19412127.3
19421427.3
19431727.3
19442527.3
19453727.3
19483127.3
19503528.8
19513028.8
19522628.8
19533028.8
19541428.8
19553828.8
19623530.5
19634030.5
19682430.5
19692330.5
19701212
First to last qualifying date each year at Itatira For each year, a bar from the first to the last day at Itatira meeting 10 mm (0.39 in). 1913: 3 February 1913 to 10 December 19131914: 17 January 1914 to 15 August 19141915: 28 March 1915 to 17 December 19151916: 18 January 1916 to 19 December 19161917: 2 January 1917 to 20 December 19171918: 9 January 1918 to 11 September 19181919: 1 January 1919 to 20 February 19191920: 5 March 1920 to 12 December 19201921: 4 January 1921 to 22 November 19211922: 1 February 1922 to 30 November 19221923: 23 January 1923 to 6 July 19231924: 23 January 1924 to 31 December 19241925: 13 January 1925 to 7 May 19251926: 10 January 1926 to 13 June 19261927: 23 January 1927 to 11 July 19271928: 28 February 1928 to 26 June 19281929: 2 February 1929 to 31 December 19291930: 21 January 1930 to 12 December 19301937: 22 February 1937 to 29 November 19371938: 2 March 1938 to 18 December 19381939: 9 February 1939 to 11 September 19391940: 28 January 1940 to 15 August 19401941: 10 February 1941 to 1 July 19411942: 8 February 1942 to 4 December 19421943: 26 January 1943 to 22 December 19431944: 17 January 1944 to 24 December 19441945: 16 January 1945 to 9 December 19451948: 5 January 1948 to 12 July 19481950: 29 January 1950 to 10 June 19501951: 10 January 1951 to 15 December 19511952: 1 January 1952 to 16 December 19521953: 19 February 1953 to 15 August 19531954: 1 February 1954 to 30 June 19541955: 19 January 1955 to 4 August 19551962: 28 January 1962 to 17 December 19621963: 20 January 1963 to 8 August 19631968: 26 February 1968 to 28 December 19681969: 23 February 1969 to 5 August 19691970: 23 January 1970 to 21 July 197019131918192319281939194419521963JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Itatira meeting 10 mm (0.39 in).
First to last qualifying date each year at Itatira
YearFirst dateLast date
19131913-02-031913-12-10
19141914-01-171914-08-15
19151915-03-281915-12-17
19161916-01-181916-12-19
19171917-01-021917-12-20
19181918-01-091918-09-11
19191919-01-011919-02-20
19201920-03-051920-12-12
19211921-01-041921-11-22
19221922-02-011922-11-30
19231923-01-231923-07-06
19241924-01-231924-12-31
19251925-01-131925-05-07
19261926-01-101926-06-13
19271927-01-231927-07-11
19281928-02-281928-06-26
19291929-02-021929-12-31
19301930-01-211930-12-12
19371937-02-221937-11-29
19381938-03-021938-12-18
19391939-02-091939-09-11
19401940-01-281940-08-15
19411941-02-101941-07-01
19421942-02-081942-12-04
19431943-01-261943-12-22
19441944-01-171944-12-24
19451945-01-161945-12-09
19481948-01-051948-07-12
19501950-01-291950-06-10
19511951-01-101951-12-15
19521952-01-011952-12-16
19531953-02-191953-08-15
19541954-02-011954-06-30
19551955-01-191955-08-04
19621962-01-281962-12-17
19631963-01-201963-08-08
19681968-02-261968-12-28
19691969-02-231969-08-05
19701970-01-231970-07-21

Every Fixed Threshold

Fixed thresholds at Itatira
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3946194012
25 mm (0.98 in): Days with 25 mm or more rain392519404
50 mm (1.97 in): Days with 50 mm or more rain29919551
100 mm (3.94 in): Days with 100 mm or more rain2119531

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1913.

Download the Data

  • Data for Itatira 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).