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Built 2026-10-19 (19 October 2026)

Pedras Altas Threshold Days by Year (BR003153007)

5 fixed thresholds counted per year at Pedras Altas (BR003153007): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Pedras Altas Thresholds

  • Pedras Altas: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 1998 with 52.
  • Pedras Altas: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1987 with 26.
  • Pedras Altas: days with 50 mm (1.97 in) or more of precipitation in 31 years, most in 1986 with 12.
  • Pedras Altas: days with 100 mm (3.94 in) or more of precipitation in 8 years, most in 1973 with 2.
  • 5 fixed thresholds have at least one qualifying day at Pedras Altas.
31 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Pedras Altas Days per year at Pedras Altas with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 52 in 1998. 02040601966: 491967: 421968: 371969: 361970: 361971: 361972: 501973: 421974: 461975: 411976: 511977: 501978: 401979: 421980: 501981: 401982: 441983: 411984: 461985: 471986: 401987: 491988: 271989: 281992: 421993: 361994: 311996: 371997: 461998: 521999: 3519661970197419781982198619921997
Days per year at Pedras Altas with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 52 in 1998.
Days with 10 mm (0.39 in) or more of precipitation per year at Pedras Altas
YearDaysDecade average
19664941
19674241
19683741
19693641
19703643.4
19713643.4
19725043.4
19734243.4
19744643.4
19754143.4
19765143.4
19775043.4
19784043.4
19794243.4
19805041.2
19814041.2
19824441.2
19834141.2
19844641.2
19854741.2
19864041.2
19874941.2
19882741.2
19892841.2
19924239.9
19933639.9
19943139.9
19963739.9
19974639.9
19985239.9
19993539.9
First to last qualifying date each year at Pedras Altas For each year, a bar from the first to the last day at Pedras Altas meeting 10 mm (0.39 in). 1966: 20 January 1966 to 12 December 19661967: 3 January 1967 to 1 December 19671968: 1 January 1968 to 27 December 19681969: 5 January 1969 to 11 December 19691970: 6 January 1970 to 27 December 19701971: 4 January 1971 to 17 December 19711972: 3 January 1972 to 30 December 19721973: 8 January 1973 to 24 December 19731974: 3 January 1974 to 23 December 19741975: 7 January 1975 to 9 December 19751976: 6 January 1976 to 20 December 19761977: 1 January 1977 to 28 November 19771978: 24 January 1978 to 31 December 19781979: 25 January 1979 to 30 December 19791980: 6 January 1980 to 19 December 19801981: 12 January 1981 to 30 December 19811982: 1 January 1982 to 31 December 19821983: 5 January 1983 to 1 December 19831984: 7 January 1984 to 30 December 19841985: 6 January 1985 to 23 November 19851986: 13 January 1986 to 21 December 19861987: 1 January 1987 to 31 December 19871988: 5 January 1988 to 22 November 19881989: 19 January 1989 to 18 December 19891992: 2 January 1992 to 6 December 19921993: 1 January 1993 to 17 November 19931994: 8 January 1994 to 4 December 19941996: 5 January 1996 to 7 December 19961997: 19 January 1997 to 30 December 19971998: 1 January 1998 to 29 December 19981999: 20 January 1999 to 14 December 199919661970197419781982198619921997JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Pedras Altas meeting 10 mm (0.39 in).
First to last qualifying date each year at Pedras Altas
YearFirst dateLast date
19661966-01-201966-12-12
19671967-01-031967-12-01
19681968-01-011968-12-27
19691969-01-051969-12-11
19701970-01-061970-12-27
19711971-01-041971-12-17
19721972-01-031972-12-30
19731973-01-081973-12-24
19741974-01-031974-12-23
19751975-01-071975-12-09
19761976-01-061976-12-20
19771977-01-011977-11-28
19781978-01-241978-12-31
19791979-01-251979-12-30
19801980-01-061980-12-19
19811981-01-121981-12-30
19821982-01-011982-12-31
19831983-01-051983-12-01
19841984-01-071984-12-30
19851985-01-061985-11-23
19861986-01-131986-12-21
19871987-01-011987-12-31
19881988-01-051988-11-22
19891989-01-191989-12-18
19921992-01-021992-12-06
19931993-01-011993-11-17
19941994-01-081994-12-04
19961996-01-051996-12-07
19971997-01-191997-12-30
19981998-01-011998-12-29
19991999-01-201999-12-14

Every Fixed Threshold

Fixed thresholds at Pedras Altas
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3152199835
25 mm (0.98 in): Days with 25 mm or more rain3126198712
50 mm (1.97 in): Days with 50 mm or more rain311219862
100 mm (3.94 in): Days with 100 mm or more rain8219732
200 mm (7.87 in): Days with 200 mm or more rain1119731

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1966.

Download the Data

  • Data for Pedras Altas 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).