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Data as of 2025-12-31
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Built 2026-10-17 (17 October 2026)

Iuna Weather Records (BR002041013)

Record envelope, standing records and threshold days for Iuna (BR002041013), Brazil, with 47 years of record.

Key Facts for Iuna

  • Iuna (BR002041013) is a weather station in Brazil at -20.35 latitude and -41.54 longitude, 615 m (2,018 ft) above sea level.
  • The station reports from 1954 to 2000, 47 years of record.
  • 0 records set at Iuna still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Iuna set a monthly record daily precipitation of 121.2 mm (4.8 in) on 18 December 2000.

About the Station

  • Location: Brazil, -20.35 latitude, -41.54 longitude.
  • Elevation: 615 m (2,018 ft).
  • Period of record: 1954 to 2000, 47 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

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

Wettest Day of Each Month

Nov: 138.4 mm (5.4 in)
Record daily precipitation for each month at Iuna The wettest day on record for each calendar month at Iuna. The most was 138.4 mm (5.4 in) on 12 November 1961. 050100150 Jan: 126.0 mm (5.0 in), 1 January 1996 Jan Feb: 100.3 mm (3.9 in), 27 February 1997 Feb Mar: 96.4 mm (3.8 in), 3 March 1956 Mar Apr: 56.6 mm (2.2 in), 5 April 1990 Apr May: 43.2 mm (1.7 in), 27 May 1988 May Jun: 40.5 mm (1.6 in), 11 June 1989 Jun Jul: 38.0 mm (1.5 in), 31 July 1989 Jul Aug: 74.1 mm (2.9 in), 7 August 1998 Aug Sep: 132.2 mm (5.2 in), 15 September 1989 Sep Oct: 85.0 mm (3.3 in), 25 October 1993 Oct Nov: 138.4 mm (5.4 in), 12 November 1961 Nov Dec: 121.2 mm (4.8 in), 18 December 2000 Dec
The wettest day on record for each calendar month at Iuna. The most was 138.4 mm (5.4 in) on 12 November 1961.
Record daily precipitation for each month at Iuna
MonthRecord daily precipitation (mm)Date
Jan126.0 mm (5.0 in)1 January 1996
Feb100.3 mm (3.9 in)27 February 1997
Mar96.4 mm (3.8 in)3 March 1956
Apr56.6 mm (2.2 in)5 April 1990
May43.2 mm (1.7 in)27 May 1988
Jun40.5 mm (1.6 in)11 June 1989
Jul38.0 mm (1.5 in)31 July 1989
Aug74.1 mm (2.9 in)7 August 1998
Sep132.2 mm (5.2 in)15 September 1989
Oct85.0 mm (3.3 in)25 October 1993
Nov138.4 mm (5.4 in)12 November 1961
Dec121.2 mm (4.8 in)18 December 2000

Latest Records

20
Latest records at Iuna
DateStationRecordValueBeat old record byOld record stoodSignificance
18 December 2000Iuna, BRmonthly rain121.2 mm (4.8 in)36.8 mm (1.4 in)37 years51 of 100 (Notable)
7 November 2000Iuna, BRdaily rain41.2 mm (1.6 in)4.2 mm (0.17 in)1 year6 of 100 (Routine)
29 August 2000Iuna, BRdaily rain15.4 mm (0.6 in)8.9 mm (0.35 in)10 years17 of 100 (Routine)
2 August 2000Iuna, BRdaily rain1.9 mm (0.07 in)0.5 mm (0.02 in)35 years14 of 100 (Routine)
2 June 2000Iuna, BRdaily rain18.6 mm (0.7 in)14.2 mm (0.6 in)24 years20 of 100 (Routine)
31 March 2000Iuna, BRdaily rain32.0 mm (1.3 in)4.8 mm (0.19 in)5 years8 of 100 (Routine)
29 February 2000Iuna, BRdaily rain (Tie)61.5 mm (2.4 in)tie40 years4 of 100 (Routine)
7 November 1999Iuna, BRdaily rain37.0 mm (1.5 in)9.8 mm (0.39 in)6 years11 of 100 (Routine)
20 October 1999Iuna, BRdaily rain55.6 mm (2.2 in)12.4 mm (0.5 in)16 years18 of 100 (Routine)
23 September 1999Iuna, BRdaily rain33.0 mm (1.3 in)8.2 mm (0.32 in)36 years21 of 100 (Routine)
16 August 1999Iuna, BRdaily rain6.2 mm (0.24 in)1.4 mm (0.06 in)14 years9 of 100 (Routine)
11 March 1999Iuna, BRdaily rain43.0 mm (1.7 in)16.8 mm (0.7 in)40 years26 of 100 (Routine)
6 March 1999Iuna, BRdaily rain26.5 mm (1.0 in)2.8 mm (0.11 in)10 years8 of 100 (Routine)
8 December 1998Iuna, BRdaily rain47.0 mm (1.9 in)9.5 mm (0.37 in)1 year10 of 100 (Routine)
7 December 1998Iuna, BRdaily rain39.0 mm (1.5 in)4.8 mm (0.19 in)15 years11 of 100 (Routine)
23 November 1998Iuna, BRdaily rain76.8 mm (3.0 in)44.4 mm (1.7 in)39 years42 of 100 (Notable)
19 November 1998Iuna, BRdaily rain69.0 mm (2.7 in)29.8 mm (1.2 in)13 years26 of 100 (Routine)
10 August 1998Iuna, BRdaily rain19.0 mm (0.7 in)8.6 mm (0.34 in)8 years20 of 100 (Routine)
8 August 1998Iuna, BRdaily rain19.6 mm (0.8 in)12.8 mm (0.5 in)5 years20 of 100 (Routine)
7 August 1998Iuna, BRmonthly rain74.1 mm (2.9 in)39.9 mm (1.6 in)16 years59 of 100 (Notable)

Extremes by Year

1954 to 2000
Yearly extremes at Iuna: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)138.4 mm (5.4 in)196165.2 mm (2.6 in)47
Wettest five days (Rx5day)265.9 mm (10.5 in)1997133.6 mm (5.3 in)47
Longest dry spell (CDD)121 days195532 days47

Wettest day (Rx1day)

Wettest day (Rx1day) at Iuna by year The wettest day of the year at Iuna, 1954 to 2000. The record is 138.4 mm (5.4 in) in 1961, marked on the chart; the median year is 65.2 mm (2.6 in). 05010015019601970198019902000Record: 138.4 mm (5.4 in) in 1961
The wettest day of the year at Iuna, 1954 to 2000. The record is 138.4 mm (5.4 in) in 1961, marked on the chart; the median year is 65.2 mm (2.6 in).
Wettest day (Rx1day) at Iuna by year
YearWettest day (Rx1day)
195448.0 mm (1.9 in)
195532.0 mm (1.3 in)
195696.4 mm (3.8 in)
195755.3 mm (2.2 in)
195876.9 mm (3.0 in)
195961.4 mm (2.4 in)
196070.6 mm (2.8 in)
1961138.4 mm (5.4 in)
196284.4 mm (3.3 in)
196344.8 mm (1.8 in)
196472.4 mm (2.9 in)
196552.3 mm (2.1 in)
196656.4 mm (2.2 in)
196761.2 mm (2.4 in)
196864.8 mm (2.6 in)
196962.4 mm (2.5 in)
197042.6 mm (1.7 in)
1971108.6 mm (4.3 in)
197264.4 mm (2.5 in)
197354.2 mm (2.1 in)
197492.4 mm (3.6 in)
197571.2 mm (2.8 in)
197661.5 mm (2.4 in)
197748.2 mm (1.9 in)
197838.2 mm (1.5 in)
197952.4 mm (2.1 in)
198061.5 mm (2.4 in)
198173.6 mm (2.9 in)
198273.4 mm (2.9 in)
198343.2 mm (1.7 in)
198469.6 mm (2.7 in)
198573.2 mm (2.9 in)
198665.2 mm (2.6 in)
198771.0 mm (2.8 in)
198861.5 mm (2.4 in)
1989132.2 mm (5.2 in)
199056.6 mm (2.2 in)
199192.3 mm (3.6 in)
199261.5 mm (2.4 in)
199385.0 mm (3.3 in)
199478.0 mm (3.1 in)
199577.3 mm (3.0 in)
1996126.0 mm (5.0 in)
1997100.3 mm (3.9 in)
199878.5 mm (3.1 in)
199955.6 mm (2.2 in)
2000121.2 mm (4.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Iuna by year The wettest five days of the year at Iuna, 1954 to 2000. The record is 265.9 mm (10.5 in) in 1997, marked on the chart; the median year is 133.6 mm (5.3 in). 5010015020025030019601970198019902000Record: 265.9 mm (10.5 in) in 1997
The wettest five days of the year at Iuna, 1954 to 2000. The record is 265.9 mm (10.5 in) in 1997, marked on the chart; the median year is 133.6 mm (5.3 in).
Wettest five days (Rx5day) at Iuna by year
YearWettest five days (Rx5day)
1954115.6 mm (4.6 in)
195590.6 mm (3.6 in)
1956209.5 mm (8.2 in)
1957134.8 mm (5.3 in)
1958176.7 mm (7.0 in)
1959108.2 mm (4.3 in)
1960200.0 mm (7.9 in)
1961174.0 mm (6.9 in)
1962159.0 mm (6.3 in)
196375.4 mm (3.0 in)
1964119.0 mm (4.7 in)
1965184.5 mm (7.3 in)
1966138.4 mm (5.4 in)
1967160.0 mm (6.3 in)
1968159.7 mm (6.3 in)
196990.8 mm (3.6 in)
1970107.8 mm (4.2 in)
1971158.8 mm (6.3 in)
197299.4 mm (3.9 in)
1973172.6 mm (6.8 in)
1974137.8 mm (5.4 in)
1975113.6 mm (4.5 in)
197676.8 mm (3.0 in)
1977109.8 mm (4.3 in)
197875.6 mm (3.0 in)
1979116.8 mm (4.6 in)
1980119.2 mm (4.7 in)
1981221.2 mm (8.7 in)
1982123.0 mm (4.8 in)
1983122.2 mm (4.8 in)
1984122.8 mm (4.8 in)
1985149.8 mm (5.9 in)
1986105.0 mm (4.1 in)
1987114.2 mm (4.5 in)
198890.3 mm (3.6 in)
1989148.9 mm (5.9 in)
1990109.4 mm (4.3 in)
1991193.5 mm (7.6 in)
1992108.4 mm (4.3 in)
1993170.1 mm (6.7 in)
1994133.6 mm (5.3 in)
1995140.5 mm (5.5 in)
1996194.5 mm (7.7 in)
1997265.9 mm (10.5 in)
1998151.8 mm (6.0 in)
1999118.2 mm (4.7 in)
2000166.2 mm (6.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Iuna by year The longest dry spell of the year at Iuna, 1954 to 2000. The record is 121 days in 1955, marked on the chart; the median year is 32 days. 05010015019601970198019902000Record: 121 days in 1955
The longest dry spell of the year at Iuna, 1954 to 2000. The record is 121 days in 1955, marked on the chart; the median year is 32 days.
Longest dry spell (CDD) at Iuna by year
YearLongest dry spell (CDD)
195437 days
1955121 days
195672 days
195755 days
195827 days
1959102 days
196032 days
196159 days
196241 days
196348 days
196418 days
196520 days
196646 days
196738 days
196825 days
196947 days
197023 days
197132 days
197224 days
197327 days
197434 days
197574 days
197629 days
197740 days
197822 days
197948 days
198028 days
198139 days
198223 days
198349 days
198446 days
198560 days
198626 days
198730 days
198872 days
198922 days
199022 days
199118 days
199216 days
199331 days
199443 days
199536 days
199627 days
199737 days
199830 days
199929 days
200026 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

41 years, 1954 to 2000

A day with at least 68.0 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 161.9 mm (6.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Iuna: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years68.0 mm (2.7 in)
5 years90.4 mm (3.6 in)
10 years106.2 mm (4.2 in)
25 years127.5 mm (5.0 in)
50 years144.4 mm (5.7 in)Longer than the 41 years of record
100 years161.9 mm (6.4 in)Longer than the 41 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, 41 years of values from 1954 to 2000.

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: 138.4 mm (5.4 in) in 1961; 132.2 mm (5.2 in) in 1989; 126.0 mm (5.0 in) in 1996.

Download the Data

  • Data for Iuna standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Iuna 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).