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Built 2026-10-19 (19 October 2026)

Arroio Grande Threshold Days by Year (BR003253001)

4 fixed thresholds counted per year at Arroio Grande (BR003253001): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Arroio Grande Thresholds

  • Arroio Grande: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 1984 with 62.
  • Arroio Grande: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1984 with 30.
  • Arroio Grande: days with 50 mm (1.97 in) or more of precipitation in 30 years, most in 1983 with 10.
  • Arroio Grande: days with 100 mm (3.94 in) or more of precipitation in 10 years, most in 1992 with 2.
  • 4 fixed thresholds have at least one qualifying day at Arroio Grande.
31 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Arroio Grande Days per year at Arroio Grande with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 62 in 1984. 0204060801967: 361968: 321969: 301970: 371971: 291974: 421975: 351976: 421977: 501978: 401979: 351980: 471981: 441982: 431983: 391984: 621985: 421986: 281987: 281988: 301989: 231990: 461991: 401992: 411993: 431994: 381995: 391996: 321997: 481998: 471999: 3719671971197719811985198919931997
Days per year at Arroio Grande with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 62 in 1984.
Days with 10 mm (0.39 in) or more of precipitation per year at Arroio Grande
YearDaysDecade average
19673632.7
19683232.7
19693032.7
19703738.8
19712938.8
19744238.8
19753538.8
19764238.8
19775038.8
19784038.8
19793538.8
19804738.6
19814438.6
19824338.6
19833938.6
19846238.6
19854238.6
19862838.6
19872838.6
19883038.6
19892338.6
19904641.1
19914041.1
19924141.1
19934341.1
19943841.1
19953941.1
19963241.1
19974841.1
19984741.1
19993741.1
First to last qualifying date each year at Arroio Grande For each year, a bar from the first to the last day at Arroio Grande meeting 10 mm (0.39 in). 1967: 3 January 1967 to 2 December 19671968: 2 January 1968 to 28 December 19681969: 5 January 1969 to 12 December 19691970: 6 January 1970 to 29 December 19701971: 11 January 1971 to 21 December 19711974: 4 January 1974 to 28 December 19741975: 17 January 1975 to 20 December 19751976: 6 January 1976 to 21 December 19761977: 3 January 1977 to 27 November 19771978: 20 January 1978 to 31 December 19781979: 25 January 1979 to 13 December 19791980: 6 January 1980 to 19 December 19801981: 12 January 1981 to 31 December 19811982: 1 February 1982 to 15 December 19821983: 19 January 1983 to 21 December 19831984: 2 January 1984 to 9 December 19841985: 21 January 1985 to 26 December 19851986: 13 January 1986 to 10 October 19861987: 6 January 1987 to 15 November 19871988: 18 January 1988 to 22 November 19881989: 9 January 1989 to 18 December 19891990: 3 February 1990 to 18 December 19901991: 10 February 1991 to 23 December 19911992: 24 January 1992 to 31 December 19921993: 3 January 1993 to 16 December 19931994: 7 January 1994 to 28 December 19941995: 5 January 1995 to 17 November 19951996: 4 January 1996 to 16 December 19961997: 18 January 1997 to 30 December 19971998: 1 January 1998 to 29 December 19981999: 10 January 1999 to 15 December 199919671971197719811985198919931997JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Arroio Grande meeting 10 mm (0.39 in).
First to last qualifying date each year at Arroio Grande
YearFirst dateLast date
19671967-01-031967-12-02
19681968-01-021968-12-28
19691969-01-051969-12-12
19701970-01-061970-12-29
19711971-01-111971-12-21
19741974-01-041974-12-28
19751975-01-171975-12-20
19761976-01-061976-12-21
19771977-01-031977-11-27
19781978-01-201978-12-31
19791979-01-251979-12-13
19801980-01-061980-12-19
19811981-01-121981-12-31
19821982-02-011982-12-15
19831983-01-191983-12-21
19841984-01-021984-12-09
19851985-01-211985-12-26
19861986-01-131986-10-10
19871987-01-061987-11-15
19881988-01-181988-11-22
19891989-01-091989-12-18
19901990-02-031990-12-18
19911991-02-101991-12-23
19921992-01-241992-12-31
19931993-01-031993-12-16
19941994-01-071994-12-28
19951995-01-051995-11-17
19961996-01-041996-12-16
19971997-01-181997-12-30
19981998-01-011998-12-29
19991999-01-101999-12-15

Every Fixed Threshold

Fixed thresholds at Arroio Grande
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3162198437
25 mm (0.98 in): Days with 25 mm or more rain3130198412
50 mm (1.97 in): Days with 50 mm or more rain301019836
100 mm (3.94 in): Days with 100 mm or more rain10219921

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1967.

Download the Data

  • Data for Arroio Grande 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).