Built 2026-10-17 (17 October 2026)

Guacui Weather Records (BR002041001)

Record envelope, standing records and threshold days for Guacui (BR002041001), Brazil, with 60 years of record.

Key Facts for Guacui

  • Guacui (BR002041001) is a weather station in Brazil at -20.77 latitude and -41.68 longitude, 576 m (1,890 ft) above sea level.
  • The station reports from 1939 to 1998, 60 years of record.
  • 0 records set at Guacui still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Guacui set a daily record precipitation of 36.7 mm (1.4 in) on 30 March 1998.

About the Station

  • Location: Brazil, -20.77 latitude, -41.68 longitude.
  • Elevation: 576 m (1,890 ft).
  • Period of record: 1939 to 1998, 60 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Guacui, with 2026 drawn through them The band shows the record high and record low for each calendar day at Guacui. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Guacui. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Guacui, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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Which Years Hold Standing Records

0 standing records
Standing records at Guacui by the year they were set 0 records at Guacui still stand. 00000000000
0 records at Guacui still stand.
Standing records at Guacui by the year they were set
Year setStanding records

All-Time Record Progression

2 new records
When Guacui set new all-time records 2 all-time records were set at Guacui between 23 November 1974 and 22 November 1983. Each dot is a new record. Record daily precipitation23 November 1974: Record daily precipitation 128.0 mm (5.0 in)22 November 1983: Record daily precipitation 130.0 mm (5.1 in)19751980
2 all-time records were set at Guacui between 23 November 1974 and 22 November 1983. Each dot is a new record.
When Guacui set new all-time records
DateKindDetail
1974-11-23Record daily precipitationRecord daily precipitation 128.0 mm (5.0 in)
1983-11-22Record daily precipitationRecord daily precipitation 130.0 mm (5.1 in)

Wettest Day of Each Month

Nov: 130.0 mm (5.1 in)
Record daily precipitation for each month at Guacui The wettest day on record for each calendar month at Guacui. The most was 130.0 mm (5.1 in) on 22 November 1983. 050100150 Jan: 125.0 mm (4.9 in), 9 January 1945 Jan Feb: 88.2 mm (3.5 in), 3 February 1943 Feb Mar: 101.0 mm (4.0 in), 27 March 1991 Mar Apr: 122.0 mm (4.8 in), 2 April 1977 Apr May: 53.2 mm (2.1 in), 11 May 1957 May Jun: 37.0 mm (1.5 in), 8 June 1982 Jun Jul: 50.2 mm (2.0 in), 13 July 1972 Jul Aug: 64.5 mm (2.5 in), 22 August 1986 Aug Sep: 53.5 mm (2.1 in), 7 September 1996 Sep Oct: 89.1 mm (3.5 in), 4 October 1970 Oct Nov: 130.0 mm (5.1 in), 22 November 1983 Nov Dec: 116.6 mm (4.6 in), 8 December 1982 Dec
The wettest day on record for each calendar month at Guacui. The most was 130.0 mm (5.1 in) on 22 November 1983.
Record daily precipitation for each month at Guacui
MonthRecord daily precipitation (mm)Date
Jan125.0 mm (4.9 in)9 January 1945
Feb88.2 mm (3.5 in)3 February 1943
Mar101.0 mm (4.0 in)27 March 1991
Apr122.0 mm (4.8 in)2 April 1977
May53.2 mm (2.1 in)11 May 1957
Jun37.0 mm (1.5 in)8 June 1982
Jul50.2 mm (2.0 in)13 July 1972
Aug64.5 mm (2.5 in)22 August 1986
Sep53.5 mm (2.1 in)7 September 1996
Oct89.1 mm (3.5 in)4 October 1970
Nov130.0 mm (5.1 in)22 November 1983
Dec116.6 mm (4.6 in)8 December 1982

Latest Records

20
Latest records at Guacui
DateStationRecordValueBeat old record byOld record stoodSignificance
30 March 1998Guacui, BRdaily rain36.7 mm (1.4 in)4.7 mm (0.19 in)11 years12 of 100 (Routine)
12 February 1998Guacui, BRdaily rain43.5 mm (1.7 in)1.5 mm (0.06 in)36 years16 of 100 (Routine)
4 January 1998Guacui, BRdaily rain102.6 mm (4.0 in)32.2 mm (1.3 in)0 years25 of 100 (Routine)
21 September 1997Guacui, BRdaily rain16.7 mm (0.7 in)8.6 mm (0.34 in)28 years20 of 100 (Routine)
16 September 1997Guacui, BRdaily rain30.5 mm (1.2 in)17.5 mm (0.7 in)18 years30 of 100 (Routine)
9 August 1997Guacui, BRdaily rain32.4 mm (1.3 in)26.6 mm (1.0 in)40 years48 of 100 (Notable)
6 June 1997Guacui, BRdaily rain14.8 mm (0.6 in)10.8 mm (0.4 in)32 years20 of 100 (Routine)
4 January 1997Guacui, BRdaily rain70.4 mm (2.8 in)19.6 mm (0.8 in)4 years17 of 100 (Routine)
5 November 1996Guacui, BRdaily rain68.5 mm (2.7 in)26.5 mm (1.0 in)11 years23 of 100 (Routine)
18 September 1996Guacui, BRdaily rain20.5 mm (0.8 in)17.5 mm (0.7 in)21 years20 of 100 (Routine)
14 September 1996Guacui, BRdaily rain27.2 mm (1.1 in)4.0 mm (0.16 in)37 years20 of 100 (Routine)
7 September 1996Guacui, BRmonthly rain53.5 mm (2.1 in)9.7 mm (0.38 in)23 years34 of 100 (Routine)
17 May 1996Guacui, BRdaily rain20.3 mm (0.8 in)11.3 mm (0.4 in)28 years20 of 100 (Routine)
13 April 1996Guacui, BRdaily rain36.7 mm (1.4 in)12.7 mm (0.5 in)31 years23 of 100 (Routine)
29 February 1996Guacui, BRdaily rain (Tie)57.6 mm (2.3 in)tie56 years5 of 100 (Routine)
1 January 1996Guacui, BRdaily rain68.3 mm (2.7 in)14.3 mm (0.6 in)14 years17 of 100 (Routine)
21 December 1995Guacui, BRdaily rain64.3 mm (2.5 in)10.5 mm (0.4 in)40 years23 of 100 (Routine)
3 November 1995Guacui, BRdaily rain33.6 mm (1.3 in)13.0 mm (0.5 in)49 years26 of 100 (Routine)
23 October 1995Guacui, BRdaily rain42.5 mm (1.7 in)8.2 mm (0.32 in)42 years23 of 100 (Routine)
19 May 1995Guacui, BRdaily rain33.8 mm (1.3 in)16.0 mm (0.6 in)41 years35 of 100 (Notable)

Extremes by Year

1939 to 1998
Yearly extremes at Guacui: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)130.0 mm (5.1 in)198375.2 mm (3.0 in)60
Wettest five days (Rx5day)267.9 mm (10.5 in)1985145.1 mm (5.7 in)60
Longest dry spell (CDD)77 days196131 days60

Wettest day (Rx1day)

Wettest day (Rx1day) at Guacui by year The wettest day of the year at Guacui, 1939 to 1998. The record is 130.0 mm (5.1 in) in 1983, marked on the chart; the median year is 75.2 mm (3.0 in). 255075100125150194019501960197019801990Record: 130.0 mm (5.1 in) in 1983
The wettest day of the year at Guacui, 1939 to 1998. The record is 130.0 mm (5.1 in) in 1983, marked on the chart; the median year is 75.2 mm (3.0 in).
Wettest day (Rx1day) at Guacui by year
YearWettest day (Rx1day)
193945.0 mm (1.8 in)
1940100.0 mm (3.9 in)
194198.6 mm (3.9 in)
194287.3 mm (3.4 in)
194388.2 mm (3.5 in)
194466.9 mm (2.6 in)
1945125.0 mm (4.9 in)
194677.0 mm (3.0 in)
194762.6 mm (2.5 in)
194857.6 mm (2.3 in)
194950.6 mm (2.0 in)
195062.1 mm (2.4 in)
195173.0 mm (2.9 in)
195274.6 mm (2.9 in)
195378.8 mm (3.1 in)
195465.8 mm (2.6 in)
1955109.6 mm (4.3 in)
195667.2 mm (2.6 in)
1957100.8 mm (4.0 in)
195862.0 mm (2.4 in)
195973.4 mm (2.9 in)
196073.8 mm (2.9 in)
196175.4 mm (3.0 in)
196287.0 mm (3.4 in)
196376.1 mm (3.0 in)
196474.0 mm (2.9 in)
196555.2 mm (2.2 in)
196679.0 mm (3.1 in)
196773.0 mm (2.9 in)
196893.2 mm (3.7 in)
1969100.1 mm (3.9 in)
197089.1 mm (3.5 in)
197168.3 mm (2.7 in)
197268.4 mm (2.7 in)
197362.0 mm (2.4 in)
1974128.0 mm (5.0 in)
197591.0 mm (3.6 in)
197657.6 mm (2.3 in)
1977122.0 mm (4.8 in)
197892.0 mm (3.6 in)
197980.0 mm (3.1 in)
198075.0 mm (3.0 in)
198164.1 mm (2.5 in)
1982116.6 mm (4.6 in)
1983130.0 mm (5.1 in)
198487.8 mm (3.5 in)
1985112.0 mm (4.4 in)
198664.5 mm (2.5 in)
1987103.0 mm (4.1 in)
198870.3 mm (2.8 in)
198976.0 mm (3.0 in)
199061.4 mm (2.4 in)
1991101.0 mm (4.0 in)
199257.6 mm (2.3 in)
199385.9 mm (3.4 in)
199463.5 mm (2.5 in)
199564.3 mm (2.5 in)
199668.5 mm (2.7 in)
199770.8 mm (2.8 in)
1998102.6 mm (4.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Guacui by year The wettest five days of the year at Guacui, 1939 to 1998. The record is 267.9 mm (10.5 in) in 1985, marked on the chart; the median year is 145.1 mm (5.7 in). 50100150200250300194019501960197019801990Record: 267.9 mm (10.5 in) in 1985
The wettest five days of the year at Guacui, 1939 to 1998. The record is 267.9 mm (10.5 in) in 1985, marked on the chart; the median year is 145.1 mm (5.7 in).
Wettest five days (Rx5day) at Guacui by year
YearWettest five days (Rx5day)
193976.6 mm (3.0 in)
1940157.8 mm (6.2 in)
1941185.4 mm (7.3 in)
1942225.0 mm (8.9 in)
1943159.9 mm (6.3 in)
1944134.8 mm (5.3 in)
1945235.8 mm (9.3 in)
1946102.4 mm (4.0 in)
1947143.7 mm (5.7 in)
1948131.5 mm (5.2 in)
1949116.5 mm (4.6 in)
1950147.0 mm (5.8 in)
1951185.5 mm (7.3 in)
1952172.2 mm (6.8 in)
1953146.2 mm (5.8 in)
195496.4 mm (3.8 in)
1955150.9 mm (5.9 in)
1956187.2 mm (7.4 in)
1957162.2 mm (6.4 in)
1958101.8 mm (4.0 in)
1959119.0 mm (4.7 in)
1960113.2 mm (4.5 in)
1961168.0 mm (6.6 in)
1962142.0 mm (5.6 in)
1963138.1 mm (5.4 in)
1964140.1 mm (5.5 in)
1965115.4 mm (4.5 in)
1966134.2 mm (5.3 in)
1967176.3 mm (6.9 in)
1968193.6 mm (7.6 in)
1969172.8 mm (6.8 in)
1970144.1 mm (5.7 in)
1971118.5 mm (4.7 in)
1972138.9 mm (5.5 in)
1973107.6 mm (4.2 in)
1974172.8 mm (6.8 in)
1975135.0 mm (5.3 in)
197687.4 mm (3.4 in)
1977170.0 mm (6.7 in)
1978114.0 mm (4.5 in)
1979209.0 mm (8.2 in)
1980140.6 mm (5.5 in)
1981186.4 mm (7.3 in)
1982151.6 mm (6.0 in)
1983173.0 mm (6.8 in)
1984177.2 mm (7.0 in)
1985267.9 mm (10.5 in)
1986138.9 mm (5.5 in)
1987225.0 mm (8.9 in)
198899.6 mm (3.9 in)
1989130.0 mm (5.1 in)
1990133.6 mm (5.3 in)
1991201.1 mm (7.9 in)
1992105.3 mm (4.1 in)
1993158.5 mm (6.2 in)
1994126.4 mm (5.0 in)
1995154.5 mm (6.1 in)
1996140.6 mm (5.5 in)
1997218.2 mm (8.6 in)
1998179.9 mm (7.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Guacui by year The longest dry spell of the year at Guacui, 1939 to 1998. The record is 77 days in 1961, marked on the chart; the median year is 31 days. 020406080194019501960197019801990Record: 77 days in 1961
The longest dry spell of the year at Guacui, 1939 to 1998. The record is 77 days in 1961, marked on the chart; the median year is 31 days.
Longest dry spell (CDD) at Guacui by year
YearLongest dry spell (CDD)
193912 days
194034 days
194126 days
194233 days
194319 days
194440 days
194527 days
194641 days
194727 days
194831 days
194969 days
195060 days
195149 days
195218 days
195338 days
195437 days
195570 days
195620 days
195732 days
195837 days
195931 days
196023 days
196177 days
196240 days
196348 days
196426 days
196516 days
196620 days
196730 days
196819 days
196919 days
197023 days
197123 days
197224 days
197329 days
197438 days
197574 days
197622 days
197740 days
197825 days
197925 days
198022 days
198139 days
198235 days
198324 days
198444 days
198540 days
198624 days
198727 days
198833 days
198919 days
199028 days
199117 days
199227 days
199361 days
199443 days
199533 days
199620 days
199736 days
199831 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

56 years, 1940 to 1997

A day with at least 77.7 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 152.0 mm (6.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Guacui: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years77.7 mm (3.1 in)
5 years95.4 mm (3.8 in)
10 years107.9 mm (4.2 in)
25 years124.8 mm (4.9 in)
50 years138.1 mm (5.4 in)
100 years152.0 mm (6.0 in)Longer than the 56 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 56 years of values from 1940 to 1997.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 130.0 mm (5.1 in) in 1983; 128.0 mm (5.0 in) in 1974; 125.0 mm (4.9 in) in 1945.

Download the Data

  • Data for Guacui standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Guacui 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).