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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Uniao Threshold Days by Year (BR027941290)

4 fixed thresholds counted per year at Uniao (BR027941290): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Uniao Thresholds

  • Uniao: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 1974 with 89.
  • Uniao: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 1974 with 34.
  • Uniao: days with 50 mm (1.97 in) or more of precipitation in 44 years, most in 1974 with 10.
  • Uniao: days with 100 mm (3.94 in) or more of precipitation in 7 years, most in 1963 with 2.
  • 4 fixed thresholds have at least one qualifying day at Uniao.
48 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Uniao Days per year at Uniao with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 89 in 1974. 02550751001915: 201926: 21933: 151934: 171935: 241937: 401938: 151939: 351940: 501941: 311942: 331943: 341944: 351945: 411946: 381947: 391948: 491949: 481950: 511951: 341952: 351953: 331954: 331955: 411956: 481957: 461958: 311959: 301960: 501963: 431964: 501965: 491966: 511967: 521968: 471969: 381970: 311971: 551972: 411974: 891976: 381977: 411978: 381979: 341980: 411981: 241982: 401983: 271915193719421947195219571964196919761981
Days per year at Uniao with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 89 in 1974.
Days with 10 mm (0.39 in) or more of precipitation per year at Uniao
YearDaysDecade average
19152020
192622
19331524.3
19341724.3
19352424.3
19374024.3
19381524.3
19393524.3
19405039.8
19413139.8
19423339.8
19433439.8
19443539.8
19454139.8
19463839.8
19473939.8
19484939.8
19494839.8
19505138.2
19513438.2
19523538.2
19533338.2
19543338.2
19554138.2
19564838.2
19574638.2
19583138.2
19593038.2
19605047.5
19634347.5
19645047.5
19654947.5
19665147.5
19675247.5
19684747.5
19693847.5
19703145.9
19715545.9
19724145.9
19748945.9
19763845.9
19774145.9
19783845.9
19793445.9
19804133
19812433
19824033
19832733
First to last qualifying date each year at Uniao For each year, a bar from the first to the last day at Uniao meeting 10 mm (0.39 in). 1915: 1 January 1915 to 16 December 19151926: 16 May 1926 to 17 May 19261933: 11 May 1933 to 9 August 19331934: 13 February 1934 to 3 October 19341935: 1 January 1935 to 14 August 19351937: 30 March 1937 to 20 September 19371938: 20 February 1938 to 27 December 19381939: 4 January 1939 to 29 December 19391940: 5 January 1940 to 30 December 19401941: 8 January 1941 to 5 December 19411942: 3 January 1942 to 25 December 19421943: 10 January 1943 to 20 December 19431944: 14 January 1944 to 30 December 19441945: 2 January 1945 to 29 December 19451946: 1 January 1946 to 29 December 19461947: 12 January 1947 to 31 December 19471948: 2 January 1948 to 19 December 19481949: 2 January 1949 to 28 November 19491950: 12 January 1950 to 28 December 19501951: 11 January 1951 to 31 December 19511952: 8 January 1952 to 28 December 19521953: 10 January 1953 to 22 December 19531954: 14 January 1954 to 6 December 19541955: 18 January 1955 to 23 December 19551956: 3 January 1956 to 27 December 19561957: 7 January 1957 to 24 December 19571958: 15 January 1958 to 30 December 19581959: 20 January 1959 to 14 November 19591960: 2 January 1960 to 30 December 19601963: 14 January 1963 to 30 December 19631964: 4 January 1964 to 27 December 19641965: 11 January 1965 to 26 October 19651966: 10 January 1966 to 31 December 19661967: 2 January 1967 to 31 December 19671968: 10 January 1968 to 31 December 19681969: 4 January 1969 to 28 December 19691970: 18 January 1970 to 26 December 19701971: 8 January 1971 to 30 December 19711972: 6 January 1972 to 29 December 19721974: 12 January 1974 to 30 December 19741976: 1 January 1976 to 16 November 19761977: 2 January 1977 to 31 December 19771978: 7 January 1978 to 30 November 19781979: 16 January 1979 to 26 December 19791980: 10 January 1980 to 27 December 19801981: 11 January 1981 to 30 December 19811982: 7 January 1982 to 31 December 19821983: 1 January 1983 to 11 December 198319151938194419501956196419701978JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Uniao meeting 10 mm (0.39 in).
First to last qualifying date each year at Uniao
YearFirst dateLast date
19151915-01-011915-12-16
19261926-05-161926-05-17
19331933-05-111933-08-09
19341934-02-131934-10-03
19351935-01-011935-08-14
19371937-03-301937-09-20
19381938-02-201938-12-27
19391939-01-041939-12-29
19401940-01-051940-12-30
19411941-01-081941-12-05
19421942-01-031942-12-25
19431943-01-101943-12-20
19441944-01-141944-12-30
19451945-01-021945-12-29
19461946-01-011946-12-29
19471947-01-121947-12-31
19481948-01-021948-12-19
19491949-01-021949-11-28
19501950-01-121950-12-28
19511951-01-111951-12-31
19521952-01-081952-12-28
19531953-01-101953-12-22
19541954-01-141954-12-06
19551955-01-181955-12-23
19561956-01-031956-12-27
19571957-01-071957-12-24
19581958-01-151958-12-30
19591959-01-201959-11-14
19601960-01-021960-12-30
19631963-01-141963-12-30
19641964-01-041964-12-27
19651965-01-111965-10-26
19661966-01-101966-12-31
19671967-01-021967-12-31
19681968-01-101968-12-31
19691969-01-041969-12-28
19701970-01-181970-12-26
19711971-01-081971-12-30
19721972-01-061972-12-29
19741974-01-121974-12-30
19761976-01-011976-11-16
19771977-01-021977-12-31
19781978-01-071978-11-30
19791979-01-161979-12-26
19801980-01-101980-12-27
19811981-01-111981-12-30
19821982-01-071982-12-31
19831983-01-011983-12-11

Every Fixed Threshold

Fixed thresholds at Uniao
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4889197427
25 mm (0.98 in): Days with 25 mm or more rain4834197412
50 mm (1.97 in): Days with 50 mm or more rain441019742
100 mm (3.94 in): Days with 100 mm or more rain7219631

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1915.

Download the Data

  • Data for Uniao 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).