Built 2026-10-19 (19 October 2026)

Iguatu Threshold Days by Year (BR038217420)

4 fixed thresholds counted per year at Iguatu (BR038217420): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Iguatu Thresholds

  • Iguatu: days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 1917 with 43.
  • Iguatu: days with 25 mm (0.98 in) or more of precipitation in 56 years, most in 1921 with 19.
  • Iguatu: days with 50 mm (1.97 in) or more of precipitation in 53 years, most in 1950 with 10.
  • Iguatu: days with 100 mm (3.94 in) or more of precipitation in 8 years, most in 1947 with 1.
  • 4 fixed thresholds have at least one qualifying day at Iguatu.
56 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Iguatu Days per year at Iguatu with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 43 in 1917. 02040601912: 411913: 331914: 271915: 71916: 241917: 431918: 311919: 71920: 241921: 291922: 241923: 201924: 381927: 191928: 151929: 251930: 181931: 241932: 121933: 161934: 361935: 271936: 161937: 161938: 201939: 301940: 301941: 161942: 81943: 221944: 231945: 281946: 301947: 351948: 231949: 271950: 301951: 101952: 191953: 191954: 241955: 191956: 171957: 211958: 161959: 181960: 211961: 191962: 251964: 341965: 271966: 251967: 181968: 281969: 321970: 221912191819241932193819441950195619621969
Days per year at Iguatu with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 43 in 1917.
Days with 10 mm (0.39 in) or more of precipitation per year at Iguatu
YearDaysDecade average
19124126.6
19133326.6
19142726.6
1915726.6
19162426.6
19174326.6
19183126.6
1919726.6
19202424.3
19212924.3
19222424.3
19232024.3
19243824.3
19271924.3
19281524.3
19292524.3
19301821.5
19312421.5
19321221.5
19331621.5
19343621.5
19352721.5
19361621.5
19371621.5
19382021.5
19393021.5
19403024.2
19411624.2
1942824.2
19432224.2
19442324.2
19452824.2
19463024.2
19473524.2
19482324.2
19492724.2
19503019.3
19511019.3
19521919.3
19531919.3
19542419.3
19551919.3
19561719.3
19572119.3
19581619.3
19591819.3
19602125.4
19611925.4
19622525.4
19643425.4
19652725.4
19662525.4
19671825.4
19682825.4
19693225.4
19702222
First to last qualifying date each year at Iguatu For each year, a bar from the first to the last day at Iguatu meeting 10 mm (0.39 in). 1912: 15 January 1912 to 22 November 19121913: 6 January 1913 to 31 December 19131914: 14 January 1914 to 7 October 19141915: 2 February 1915 to 14 December 19151916: 24 January 1916 to 30 December 19161917: 1 January 1917 to 22 December 19171918: 4 January 1918 to 27 November 19181919: 1 January 1919 to 30 December 19191920: 6 February 1920 to 31 December 19201921: 4 February 1921 to 13 December 19211922: 21 January 1922 to 17 July 19221923: 4 January 1923 to 7 June 19231924: 12 January 1924 to 28 December 19241927: 25 January 1927 to 26 June 19271928: 4 January 1928 to 6 December 19281929: 15 January 1929 to 29 December 19291930: 1 January 1930 to 28 October 19301931: 7 January 1931 to 8 October 19311932: 27 January 1932 to 28 September 19321933: 26 January 1933 to 20 April 19331934: 1 January 1934 to 22 December 19341935: 22 January 1935 to 27 May 19351936: 27 January 1936 to 22 May 19361937: 13 February 1937 to 2 May 19371938: 2 March 1938 to 13 June 19381939: 7 January 1939 to 26 October 19391940: 7 January 1940 to 22 May 19401941: 6 January 1941 to 1 May 19411942: 10 February 1942 to 14 April 19421943: 24 January 1943 to 27 December 19431944: 26 January 1944 to 24 December 19441945: 13 January 1945 to 3 December 19451946: 3 January 1946 to 21 December 19461947: 22 January 1947 to 25 December 19471948: 19 January 1948 to 14 December 19481949: 1 February 1949 to 29 November 19491950: 1 January 1950 to 28 December 19501951: 11 January 1951 to 15 December 19511952: 10 January 1952 to 16 December 19521953: 2 January 1953 to 17 September 19531954: 5 January 1954 to 30 June 19541955: 19 January 1955 to 15 November 19551956: 30 January 1956 to 20 October 19561957: 11 January 1957 to 4 December 19571958: 1 February 1958 to 24 July 19581959: 25 January 1959 to 24 November 19591960: 23 January 1960 to 21 May 19601961: 16 January 1961 to 12 May 19611962: 22 January 1962 to 17 December 19621964: 8 January 1964 to 14 November 19641965: 8 January 1965 to 5 October 19651966: 23 January 1966 to 11 July 19661967: 2 January 1967 to 29 December 19671968: 11 January 1968 to 27 December 19681969: 19 January 1969 to 28 September 19691970: 4 January 1970 to 22 December 197019121919192819351942194919561964JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Iguatu meeting 10 mm (0.39 in).
First to last qualifying date each year at Iguatu
YearFirst dateLast date
19121912-01-151912-11-22
19131913-01-061913-12-31
19141914-01-141914-10-07
19151915-02-021915-12-14
19161916-01-241916-12-30
19171917-01-011917-12-22
19181918-01-041918-11-27
19191919-01-011919-12-30
19201920-02-061920-12-31
19211921-02-041921-12-13
19221922-01-211922-07-17
19231923-01-041923-06-07
19241924-01-121924-12-28
19271927-01-251927-06-26
19281928-01-041928-12-06
19291929-01-151929-12-29
19301930-01-011930-10-28
19311931-01-071931-10-08
19321932-01-271932-09-28
19331933-01-261933-04-20
19341934-01-011934-12-22
19351935-01-221935-05-27
19361936-01-271936-05-22
19371937-02-131937-05-02
19381938-03-021938-06-13
19391939-01-071939-10-26
19401940-01-071940-05-22
19411941-01-061941-05-01
19421942-02-101942-04-14
19431943-01-241943-12-27
19441944-01-261944-12-24
19451945-01-131945-12-03
19461946-01-031946-12-21
19471947-01-221947-12-25
19481948-01-191948-12-14
19491949-02-011949-11-29
19501950-01-011950-12-28
19511951-01-111951-12-15
19521952-01-101952-12-16
19531953-01-021953-09-17
19541954-01-051954-06-30
19551955-01-191955-11-15
19561956-01-301956-10-20
19571957-01-111957-12-04
19581958-02-011958-07-24
19591959-01-251959-11-24
19601960-01-231960-05-21
19611961-01-161961-05-12
19621962-01-221962-12-17
19641964-01-081964-11-14
19651965-01-081965-10-05
19661966-01-231966-07-11
19671967-01-021967-12-29
19681968-01-111968-12-27
19691969-01-191969-09-28
19701970-01-041970-12-22

Every Fixed Threshold

Fixed thresholds at Iguatu
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain5643191722
25 mm (0.98 in): Days with 25 mm or more rain5619192111
50 mm (1.97 in): Days with 50 mm or more rain531019504
100 mm (3.94 in): Days with 100 mm or more rain8119471

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.

Download the Data

  • Data for Iguatu 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).