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Built 2026-10-19 (19 October 2026)

Porto Jau Threshold Days by Year (BR002250024)

4 fixed thresholds counted per year at Porto Jau (BR002250024): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Porto Jau Thresholds

  • Porto Jau: days with 10 mm (0.39 in) or more of precipitation in 34 years, most in 1976 with 57.
  • Porto Jau: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 1976 with 29.
  • Porto Jau: days with 50 mm (1.97 in) or more of precipitation in 34 years, most in 1954 with 8.
  • Porto Jau: days with 100 mm (3.94 in) or more of precipitation in 5 years, most in 1964 with 1.
  • 4 fixed thresholds have at least one qualifying day at Porto Jau.
34 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Porto Jau Days per year at Porto Jau with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 57 in 1976. 02040601953: 351954: 431955: 341956: 471957: 531960: 411962: 371963: 381964: 411965: 551966: 371967: 421968: 381969: 371970: 401971: 361973: 471974: 451976: 571977: 321979: 361980: 421981: 391982: 561983: 571985: 341986: 491988: 461989: 481991: 481992: 441994: 381996: 391997: 55195319571964196819731979198319891996
Days per year at Porto Jau with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 57 in 1976.
Days with 10 mm (0.39 in) or more of precipitation per year at Porto Jau
YearDaysDecade average
19533542.4
19544342.4
19553442.4
19564742.4
19575342.4
19604140.7
19623740.7
19633840.7
19644140.7
19655540.7
19663740.7
19674240.7
19683840.7
19693740.7
19704041.9
19713641.9
19734741.9
19744541.9
19765741.9
19773241.9
19793641.9
19804246.4
19813946.4
19825646.4
19835746.4
19853446.4
19864946.4
19884646.4
19894846.4
19914844.8
19924444.8
19943844.8
19963944.8
19975544.8
First to last qualifying date each year at Porto Jau For each year, a bar from the first to the last day at Porto Jau meeting 10 mm (0.39 in). 1953: 1 January 1953 to 29 December 19531954: 3 January 1954 to 19 December 19541955: 2 January 1955 to 31 December 19551956: 4 January 1956 to 24 December 19561957: 7 January 1957 to 29 December 19571960: 7 January 1960 to 30 December 19601962: 8 January 1962 to 31 December 19621963: 1 January 1963 to 9 December 19631964: 2 February 1964 to 25 December 19641965: 5 January 1965 to 31 December 19651966: 1 January 1966 to 21 December 19661967: 12 January 1967 to 21 December 19671968: 3 January 1968 to 26 December 19681969: 6 January 1969 to 24 December 19691970: 3 January 1970 to 30 December 19701971: 2 January 1971 to 23 December 19711973: 14 January 1973 to 31 December 19731974: 6 January 1974 to 31 December 19741976: 1 January 1976 to 28 December 19761977: 5 January 1977 to 23 December 19771979: 2 January 1979 to 15 December 19791980: 6 January 1980 to 29 December 19801981: 5 January 1981 to 25 December 19811982: 2 January 1982 to 29 December 19821983: 7 January 1983 to 30 December 19831985: 1 January 1985 to 27 December 19851986: 10 January 1986 to 18 December 19861988: 10 January 1988 to 31 December 19881989: 1 January 1989 to 31 December 19891991: 4 January 1991 to 25 December 19911992: 4 January 1992 to 26 December 19921994: 19 January 1994 to 31 December 19941996: 5 January 1996 to 22 December 19961997: 9 January 1997 to 31 December 19971953196019661971197919851992JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Porto Jau meeting 10 mm (0.39 in).
First to last qualifying date each year at Porto Jau
YearFirst dateLast date
19531953-01-011953-12-29
19541954-01-031954-12-19
19551955-01-021955-12-31
19561956-01-041956-12-24
19571957-01-071957-12-29
19601960-01-071960-12-30
19621962-01-081962-12-31
19631963-01-011963-12-09
19641964-02-021964-12-25
19651965-01-051965-12-31
19661966-01-011966-12-21
19671967-01-121967-12-21
19681968-01-031968-12-26
19691969-01-061969-12-24
19701970-01-031970-12-30
19711971-01-021971-12-23
19731973-01-141973-12-31
19741974-01-061974-12-31
19761976-01-011976-12-28
19771977-01-051977-12-23
19791979-01-021979-12-15
19801980-01-061980-12-29
19811981-01-051981-12-25
19821982-01-021982-12-29
19831983-01-071983-12-30
19851985-01-011985-12-27
19861986-01-101986-12-18
19881988-01-101988-12-31
19891989-01-011989-12-31
19911991-01-041991-12-25
19921992-01-041992-12-26
19941994-01-191994-12-31
19961996-01-051996-12-22
19971997-01-091997-12-31

Every Fixed Threshold

Fixed thresholds at Porto Jau
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3457197655
25 mm (0.98 in): Days with 25 mm or more rain3429197625
50 mm (1.97 in): Days with 50 mm or more rain34819547
100 mm (3.94 in): Days with 100 mm or more rain5119641

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1953.

Download the Data

  • Data for Porto Jau 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).