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Data as of 2025-12-31
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Built 2026-10-16 (16 October 2026)

Alfredo Chaves (Dnos) Weather Records (BR002040002)

Record envelope, standing records and threshold days for Alfredo Chaves (Dnos) (BR002040002), Brazil, with 34 years of record.

Key Facts for Alfredo Chaves (Dnos)

  • Alfredo Chaves (Dnos) (BR002040002) is a weather station in Brazil at -20.63 latitude and -40.75 longitude, 100 m (328 ft) above sea level.
  • The station reports from 1947 to 1980, 34 years of record.
  • 0 records set at Alfredo Chaves (Dnos) still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Alfredo Chaves (Dnos) tied a daily record precipitation of 10.0 mm (0.4 in) on 29 February 1980.

About the Station

  • Location: Brazil, -20.63 latitude, -40.75 longitude.
  • Elevation: 100 m (328 ft).
  • Period of record: 1947 to 1980, 34 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Alfredo Chaves (Dnos), with 2026 drawn through them The band shows the record high and record low for each calendar day at Alfredo Chaves (Dnos). 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 Alfredo Chaves (Dnos). 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 Alfredo Chaves (Dnos), 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 Alfredo Chaves (Dnos) by the year they were set 0 records at Alfredo Chaves (Dnos) still stand. 00000000000
0 records at Alfredo Chaves (Dnos) still stand.
Standing records at Alfredo Chaves (Dnos) by the year they were set
Year setStanding records

Wettest Day of Each Month

Oct: 138.3 mm (5.4 in)
Record daily precipitation for each month at Alfredo Chaves (Dnos) The wettest day on record for each calendar month at Alfredo Chaves (Dnos). The most was 138.3 mm (5.4 in) on 10 October 1966. 050100150 Jan: 138.2 mm (5.4 in), 31 January 1961 Jan Feb: 129.2 mm (5.1 in), 10 February 1975 Feb Mar: 128.7 mm (5.1 in), 9 March 1960 Mar Apr: 116.0 mm (4.6 in), 20 April 1974 Apr May: 95.4 mm (3.8 in), 2 May 1955 May Jun: 75.3 mm (3.0 in), 10 June 1951 Jun Jul: 68.8 mm (2.7 in), 10 July 1978 Jul Aug: 74.6 mm (2.9 in), 18 August 1963 Aug Sep: 129.5 mm (5.1 in), 29 September 1956 Sep Oct: 138.3 mm (5.4 in), 10 October 1966 Oct Nov: 126.8 mm (5.0 in), 11 November 1969 Nov Dec: 135.4 mm (5.3 in), 16 December 1967 Dec
The wettest day on record for each calendar month at Alfredo Chaves (Dnos). The most was 138.3 mm (5.4 in) on 10 October 1966.
Record daily precipitation for each month at Alfredo Chaves (Dnos)
MonthRecord daily precipitation (mm)Date
Jan138.2 mm (5.4 in)31 January 1961
Feb129.2 mm (5.1 in)10 February 1975
Mar128.7 mm (5.1 in)9 March 1960
Apr116.0 mm (4.6 in)20 April 1974
May95.4 mm (3.8 in)2 May 1955
Jun75.3 mm (3.0 in)10 June 1951
Jul68.8 mm (2.7 in)10 July 1978
Aug74.6 mm (2.9 in)18 August 1963
Sep129.5 mm (5.1 in)29 September 1956
Oct138.3 mm (5.4 in)10 October 1966
Nov126.8 mm (5.0 in)11 November 1969
Dec135.4 mm (5.3 in)16 December 1967

Latest Records

20
Latest records at Alfredo Chaves (Dnos)
DateStationRecordValueBeat old record byOld record stoodSignificance
29 February 1980Alfredo Chaves (Dnos), BRdaily rain (Tie)10.0 mm (0.4 in)tie32 years3 of 100 (Routine)
3 February 1980Alfredo Chaves (Dnos), BRdaily rain62.4 mm (2.5 in)48.1 mm (1.9 in)17 years35 of 100 (Notable)
27 November 1979Alfredo Chaves (Dnos), BRdaily rain31.2 mm (1.2 in)1.8 mm (0.07 in)4 years4 of 100 (Routine)
9 October 1979Alfredo Chaves (Dnos), BRdaily rain37.6 mm (1.5 in)29.1 mm (1.1 in)14 years26 of 100 (Routine)
8 July 1979Alfredo Chaves (Dnos), BRdaily rain17.4 mm (0.7 in)2.1 mm (0.08 in)12 years7 of 100 (Routine)
6 March 1979Alfredo Chaves (Dnos), BRdaily rain69.2 mm (2.7 in)26.0 mm (1.0 in)9 years16 of 100 (Routine)
15 February 1979Alfredo Chaves (Dnos), BRdaily rain9.8 mm (0.39 in)1.7 mm (0.07 in)21 years10 of 100 (Routine)
2 February 1979Alfredo Chaves (Dnos), BRdaily rain30.8 mm (1.2 in)5.4 mm (0.21 in)4 years7 of 100 (Routine)
1 February 1979Alfredo Chaves (Dnos), BRdaily rain99.8 mm (3.9 in)68.0 mm (2.7 in)29 years51 of 100 (Notable)
24 January 1979Alfredo Chaves (Dnos), BRdaily rain62.8 mm (2.5 in)36.2 mm (1.4 in)7 years25 of 100 (Routine)
17 January 1979Alfredo Chaves (Dnos), BRdaily rain20.4 mm (0.8 in)1.6 mm (0.06 in)5 years4 of 100 (Routine)
7 January 1979Alfredo Chaves (Dnos), BRdaily rain52.0 mm (2.0 in)34.2 mm (1.3 in)11 years25 of 100 (Routine)
11 December 1978Alfredo Chaves (Dnos), BRdaily rain38.0 mm (1.5 in)2.3 mm (0.09 in)21 years10 of 100 (Routine)
17 October 1978Alfredo Chaves (Dnos), BRdaily rain36.8 mm (1.4 in)13.6 mm (0.5 in)19 years17 of 100 (Routine)
16 October 1978Alfredo Chaves (Dnos), BRdaily rain32.6 mm (1.3 in)12.8 mm (0.5 in)21 years17 of 100 (Routine)
5 August 1978Alfredo Chaves (Dnos), BRdaily rain27.6 mm (1.1 in)22.3 mm (0.9 in)13 years26 of 100 (Routine)
3 August 1978Alfredo Chaves (Dnos), BRdaily rain7.6 mm (0.30 in)2.1 mm (0.08 in)24 years11 of 100 (Routine)
22 July 1978Alfredo Chaves (Dnos), BRdaily rain11.6 mm (0.5 in)0.3 mm (0.01 in)25 years10 of 100 (Routine)
10 July 1978Alfredo Chaves (Dnos), BRmonthly rain68.8 mm (2.7 in)6.0 mm (0.24 in)9 years20 of 100 (Routine)
4 July 1978Alfredo Chaves (Dnos), BRdaily rain34.4 mm (1.4 in)7.1 mm (0.28 in)19 years14 of 100 (Routine)

Extremes by Year

1947 to 1980
Yearly extremes at Alfredo Chaves (Dnos): the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)138.3 mm (5.4 in)196698.4 mm (3.9 in)34
Wettest five days (Rx5day)279.4 mm (11.0 in)1960167.0 mm (6.6 in)34
Longest dry spell (CDD)62 days195723 days34

Wettest day (Rx1day)

Wettest day (Rx1day) at Alfredo Chaves (Dnos) by year The wettest day of the year at Alfredo Chaves (Dnos), 1947 to 1980. The record is 138.3 mm (5.4 in) in 1966, marked on the chart; the median year is 98.4 mm (3.9 in). 50751001251501950196019701980Record: 138.3 mm (5.4 in) in 1966
The wettest day of the year at Alfredo Chaves (Dnos), 1947 to 1980. The record is 138.3 mm (5.4 in) in 1966, marked on the chart; the median year is 98.4 mm (3.9 in).
Wettest day (Rx1day) at Alfredo Chaves (Dnos) by year
YearWettest day (Rx1day)
194786.2 mm (3.4 in)
1948110.4 mm (4.3 in)
194998.0 mm (3.9 in)
195095.1 mm (3.7 in)
195175.3 mm (3.0 in)
195273.1 mm (2.9 in)
195365.1 mm (2.6 in)
195475.6 mm (3.0 in)
195595.4 mm (3.8 in)
1956129.5 mm (5.1 in)
1957104.4 mm (4.1 in)
195851.4 mm (2.0 in)
1959119.5 mm (4.7 in)
1960128.7 mm (5.1 in)
1961138.2 mm (5.4 in)
1962108.6 mm (4.3 in)
196374.6 mm (2.9 in)
1964125.6 mm (4.9 in)
196569.8 mm (2.7 in)
1966138.3 mm (5.4 in)
1967135.4 mm (5.3 in)
1968100.2 mm (3.9 in)
1969126.8 mm (5.0 in)
197094.6 mm (3.7 in)
197189.4 mm (3.5 in)
197298.8 mm (3.9 in)
197380.8 mm (3.2 in)
1974116.0 mm (4.6 in)
1975129.2 mm (5.1 in)
1976113.6 mm (4.5 in)
197772.4 mm (2.9 in)
197868.8 mm (2.7 in)
197999.8 mm (3.9 in)
198062.4 mm (2.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Alfredo Chaves (Dnos) by year The wettest five days of the year at Alfredo Chaves (Dnos), 1947 to 1980. The record is 279.4 mm (11.0 in) in 1960, marked on the chart; the median year is 167.0 mm (6.6 in). 501001502002503001950196019701980Record: 279.4 mm (11.0 in) in 1960
The wettest five days of the year at Alfredo Chaves (Dnos), 1947 to 1980. The record is 279.4 mm (11.0 in) in 1960, marked on the chart; the median year is 167.0 mm (6.6 in).
Wettest five days (Rx5day) at Alfredo Chaves (Dnos) by year
YearWettest five days (Rx5day)
1947171.0 mm (6.7 in)
1948144.8 mm (5.7 in)
1949161.4 mm (6.4 in)
1950145.7 mm (5.7 in)
1951127.5 mm (5.0 in)
1952253.5 mm (10.0 in)
1953122.0 mm (4.8 in)
1954130.6 mm (5.1 in)
1955113.7 mm (4.5 in)
1956278.4 mm (11.0 in)
1957160.7 mm (6.3 in)
1958107.8 mm (4.2 in)
1959192.9 mm (7.6 in)
1960279.4 mm (11.0 in)
1961226.3 mm (8.9 in)
1962174.3 mm (6.9 in)
1963104.7 mm (4.1 in)
1964237.8 mm (9.4 in)
1965148.6 mm (5.9 in)
1966161.0 mm (6.3 in)
1967203.0 mm (8.0 in)
1968215.0 mm (8.5 in)
1969214.8 mm (8.5 in)
1970179.8 mm (7.1 in)
1971275.0 mm (10.8 in)
1972166.4 mm (6.6 in)
1973167.6 mm (6.6 in)
1974206.2 mm (8.1 in)
1975228.6 mm (9.0 in)
1976138.8 mm (5.5 in)
1977141.0 mm (5.6 in)
1978132.6 mm (5.2 in)
1979180.4 mm (7.1 in)
198092.4 mm (3.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Alfredo Chaves (Dnos) by year The longest dry spell of the year at Alfredo Chaves (Dnos), 1947 to 1980. The record is 62 days in 1957, marked on the chart; the median year is 23 days. 0204060801950196019701980Record: 62 days in 1957
The longest dry spell of the year at Alfredo Chaves (Dnos), 1947 to 1980. The record is 62 days in 1957, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Alfredo Chaves (Dnos) by year
YearLongest dry spell (CDD)
194718 days
194820 days
194915 days
195019 days
195130 days
195218 days
195320 days
195440 days
195527 days
195635 days
195762 days
195819 days
195922 days
196028 days
196138 days
196218 days
196344 days
196418 days
196525 days
196624 days
196737 days
196815 days
196915 days
197026 days
197121 days
197223 days
197323 days
197427 days
197523 days
197623 days
197721 days
197821 days
197919 days
19808 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

32 years, 1948 to 1979

A day with at least 100.3 mm (3.9 in) of rain is expected about once in 2 years. A day with at least 154.0 mm (6.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Alfredo Chaves (Dnos): the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years100.3 mm (3.9 in)
5 years122.0 mm (4.8 in)
10 years132.8 mm (5.2 in)
25 years143.2 mm (5.6 in)
50 years149.2 mm (5.9 in)Longer than the 32 years of record
100 years154.0 mm (6.1 in)Longer than the 32 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, 32 years of values from 1948 to 1979.

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: 138.3 mm (5.4 in) in 1966; 138.2 mm (5.4 in) in 1961; 135.4 mm (5.3 in) in 1967.

Download the Data

  • Data for Alfredo Chaves (Dnos) standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Alfredo Chaves (Dnos) 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

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