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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Iapi Weather Records (BR037192180)

Record envelope, standing records and threshold days for Iapi (BR037192180), Brazil, with 50 years of record.

Key Facts for Iapi

  • Iapi (BR037192180) is a weather station in Brazil at -5.62 latitude and -40.42 longitude, 340 m (1,115 ft) above sea level.
  • The station reports from 1934 to 1983, 50 years of record.
  • 0 records set at Iapi still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Iapi set a daily record precipitation of 29.0 mm (1.1 in) on 7 April 1983.

About the Station

  • Location: Brazil, -5.62 latitude, -40.42 longitude.
  • Elevation: 340 m (1,115 ft).
  • Period of record: 1934 to 1983, 50 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

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

All-Time Record Progression

2 new records
When Iapi set new all-time records 2 all-time records were set at Iapi between 21 January 1977 and 9 March 1978. Each dot is a new record. Record daily precipitation21 January 1977: Record daily precipitation 125.0 mm (4.9 in)9 March 1978: Record daily precipitation 185.0 mm (7.3 in)
2 all-time records were set at Iapi between 21 January 1977 and 9 March 1978. Each dot is a new record.
When Iapi set new all-time records
DateKindDetail
1977-01-21Record daily precipitationRecord daily precipitation 125.0 mm (4.9 in)
1978-03-09Record daily precipitationRecord daily precipitation 185.0 mm (7.3 in)

Wettest Day of Each Month

Mar: 185.0 mm (7.3 in)
Record daily precipitation for each month at Iapi The wettest day on record for each calendar month at Iapi. The most was 185.0 mm (7.3 in) on 9 March 1978. 050100150200 Jan: 125.0 mm (4.9 in), 21 January 1977 Jan Feb: 80.9 mm (3.2 in), 1 February 1958 Feb Mar: 185.0 mm (7.3 in), 9 March 1978 Mar Apr: 120.6 mm (4.7 in), 16 April 1957 Apr May: 72.0 mm (2.8 in), 14 May 1979 May Jun: 35.0 mm (1.4 in), 9 June 1977 Jun Jul: 17.3 mm (0.7 in), 23 July 1943 Jul Aug: 20.0 mm (0.8 in), 4 August 1939 Aug Sep: 12.0 mm (0.5 in), 17 September 1973 Sep Oct: 23.2 mm (0.9 in), 21 October 1956 Oct Nov: 60.6 mm (2.4 in), 24 November 1954 Nov Dec: 85.0 mm (3.3 in), 20 December 1972 Dec
The wettest day on record for each calendar month at Iapi. The most was 185.0 mm (7.3 in) on 9 March 1978.
Record daily precipitation for each month at Iapi
MonthRecord daily precipitation (mm)Date
Jan125.0 mm (4.9 in)21 January 1977
Feb80.9 mm (3.2 in)1 February 1958
Mar185.0 mm (7.3 in)9 March 1978
Apr120.6 mm (4.7 in)16 April 1957
May72.0 mm (2.8 in)14 May 1979
Jun35.0 mm (1.4 in)9 June 1977
Jul17.3 mm (0.7 in)23 July 1943
Aug20.0 mm (0.8 in)4 August 1939
Sep12.0 mm (0.5 in)17 September 1973
Oct23.2 mm (0.9 in)21 October 1956
Nov60.6 mm (2.4 in)24 November 1954
Dec85.0 mm (3.3 in)20 December 1972

Latest Records

20
Latest records at Iapi
DateStationRecordValueBeat old record byOld record stoodSignificance
7 April 1983Iapi, BRdaily rain29.0 mm (1.1 in)3.2 mm (0.13 in)33 years17 of 100 (Routine)
23 December 1981Iapi, BRdaily rain20.0 mm (0.8 in)10.0 mm (0.4 in)38 years19 of 100 (Routine)
30 March 1981Iapi, BRdaily rain58.0 mm (2.3 in)11.6 mm (0.5 in)46 years23 of 100 (Routine)
29 March 1981Iapi, BRdaily rain32.0 mm (1.3 in)11.4 mm (0.4 in)24 years17 of 100 (Routine)
19 March 1981Iapi, BRdaily rain46.0 mm (1.8 in)6.0 mm (0.24 in)36 years18 of 100 (Routine)
14 March 1981Iapi, BRdaily rain45.0 mm (1.8 in)14.1 mm (0.6 in)20 years17 of 100 (Routine)
6 March 1980Iapi, BRdaily rain51.0 mm (2.0 in)1.0 mm (0.04 in)2 years4 of 100 (Routine)
27 January 1980Iapi, BRdaily rain46.0 mm (1.8 in)6.0 mm (0.24 in)41 years19 of 100 (Routine)
19 January 1980Iapi, BRdaily rain70.0 mm (2.8 in)39.4 mm (1.6 in)22 years35 of 100 (Notable)
16 January 1980Iapi, BRdaily rain (Tie)20.0 mm (0.8 in)tie5 years1 of 100 (Routine)
5 January 1980Iapi, BRdaily rain11.0 mm (0.4 in)4.7 mm (0.19 in)16 years11 of 100 (Routine)
3 January 1980Iapi, BRdaily rain35.0 mm (1.4 in)32.7 mm (1.3 in)24 years32 of 100 (Routine)
19 November 1979Iapi, BRdaily rain30.0 mm (1.2 in)20.0 mm (0.8 in)34 years34 of 100 (Routine)
14 May 1979Iapi, BRmonthly rain72.0 mm (2.8 in)2.0 mm (0.08 in)4 years16 of 100 (Routine)
10 May 1979Iapi, BRdaily rain13.0 mm (0.5 in)2.7 mm (0.11 in)17 years11 of 100 (Routine)
4 May 1979Iapi, BRdaily rain25.0 mm (1.0 in)5.0 mm (0.20 in)36 years18 of 100 (Routine)
23 January 1979Iapi, BRdaily rain30.0 mm (1.2 in)15.0 mm (0.6 in)8 years15 of 100 (Routine)
8 May 1978Iapi, BRdaily rain22.0 mm (0.9 in)6.0 mm (0.24 in)0 years9 of 100 (Routine)
9 March 1978Iapi, BRall-time rain185.0 mm (7.3 in)60.0 mm (2.4 in)1 year60 of 100 (Major)
6 March 1978Iapi, BRdaily rain50.0 mm (2.0 in)9.1 mm (0.36 in)20 years15 of 100 (Routine)

Extremes by Year

1934 to 1983
Yearly extremes at Iapi: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)185.0 mm (7.3 in)197860.9 mm (2.4 in)48
Wettest five days (Rx5day)235.0 mm (9.3 in)1978109.5 mm (4.3 in)48
Longest dry spell (CDD)255 days1982172 days48

Wettest day (Rx1day)

Wettest day (Rx1day) at Iapi by year The wettest day of the year at Iapi, 1934 to 1983. The record is 185.0 mm (7.3 in) in 1978, marked on the chart; the median year is 60.9 mm (2.4 in). 05010015020019401950196019701980Record: 185.0 mm (7.3 in) in 1978
The wettest day of the year at Iapi, 1934 to 1983. The record is 185.0 mm (7.3 in) in 1978, marked on the chart; the median year is 60.9 mm (2.4 in).
Wettest day (Rx1day) at Iapi by year
YearWettest day (Rx1day)
193460.8 mm (2.4 in)
193572.1 mm (2.8 in)
193676.3 mm (3.0 in)
193799.2 mm (3.9 in)
193860.0 mm (2.4 in)
193942.4 mm (1.7 in)
1940100.0 mm (3.9 in)
194150.0 mm (2.0 in)
194220.0 mm (0.8 in)
194340.0 mm (1.6 in)
194470.0 mm (2.8 in)
194650.0 mm (2.0 in)
194884.0 mm (3.3 in)
194948.0 mm (1.9 in)
195058.4 mm (2.3 in)
195190.9 mm (3.6 in)
195245.6 mm (1.8 in)
195365.7 mm (2.6 in)
195460.6 mm (2.4 in)
195540.6 mm (1.6 in)
195632.3 mm (1.3 in)
1957120.6 mm (4.7 in)
195880.9 mm (3.2 in)
195936.6 mm (1.4 in)
196060.9 mm (2.4 in)
196160.3 mm (2.4 in)
196250.6 mm (2.0 in)
196370.4 mm (2.8 in)
196467.4 mm (2.7 in)
196565.0 mm (2.6 in)
196685.3 mm (3.4 in)
196765.0 mm (2.6 in)
196870.0 mm (2.8 in)
196957.0 mm (2.2 in)
197044.0 mm (1.7 in)
197143.0 mm (1.7 in)
197285.0 mm (3.3 in)
197365.0 mm (2.6 in)
1974100.0 mm (3.9 in)
197550.9 mm (2.0 in)
197660.9 mm (2.4 in)
1977125.0 mm (4.9 in)
1978185.0 mm (7.3 in)
197972.0 mm (2.8 in)
198070.0 mm (2.8 in)
198158.0 mm (2.3 in)
198248.0 mm (1.9 in)
198335.0 mm (1.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Iapi by year The wettest five days of the year at Iapi, 1934 to 1983. The record is 235.0 mm (9.3 in) in 1978, marked on the chart; the median year is 109.5 mm (4.3 in). 05010015020025019401950196019701980Record: 235.0 mm (9.3 in) in 1978
The wettest five days of the year at Iapi, 1934 to 1983. The record is 235.0 mm (9.3 in) in 1978, marked on the chart; the median year is 109.5 mm (4.3 in).
Wettest five days (Rx5day) at Iapi by year
YearWettest five days (Rx5day)
1934151.5 mm (6.0 in)
1935159.8 mm (6.3 in)
1936116.9 mm (4.6 in)
1937136.7 mm (5.4 in)
193896.5 mm (3.8 in)
193982.8 mm (3.3 in)
1940162.0 mm (6.4 in)
1941128.2 mm (5.0 in)
194245.5 mm (1.8 in)
194355.4 mm (2.2 in)
1944120.0 mm (4.7 in)
1946100.4 mm (4.0 in)
1948147.0 mm (5.8 in)
1949117.9 mm (4.6 in)
1950110.7 mm (4.4 in)
1951102.2 mm (4.0 in)
195273.3 mm (2.9 in)
195365.7 mm (2.6 in)
195467.9 mm (2.7 in)
195566.8 mm (2.6 in)
195656.3 mm (2.2 in)
1957168.7 mm (6.6 in)
1958103.1 mm (4.1 in)
195946.9 mm (1.8 in)
1960118.9 mm (4.7 in)
196181.7 mm (3.2 in)
196276.5 mm (3.0 in)
1963137.4 mm (5.4 in)
1964113.0 mm (4.4 in)
1965168.1 mm (6.6 in)
1966169.4 mm (6.7 in)
1967108.3 mm (4.3 in)
1968122.3 mm (4.8 in)
1969103.0 mm (4.1 in)
197064.2 mm (2.5 in)
197145.6 mm (1.8 in)
1972160.0 mm (6.3 in)
1973162.0 mm (6.4 in)
1974156.0 mm (6.1 in)
197575.9 mm (3.0 in)
197671.8 mm (2.8 in)
1977135.0 mm (5.3 in)
1978235.0 mm (9.3 in)
197985.0 mm (3.3 in)
1980150.0 mm (5.9 in)
1981122.0 mm (4.8 in)
198275.4 mm (3.0 in)
198387.0 mm (3.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Iapi by year The longest dry spell of the year at Iapi, 1934 to 1983. The record is 255 days in 1982, marked on the chart; the median year is 172 days. 010020030019401950196019701980Record: 255 days in 1982
The longest dry spell of the year at Iapi, 1934 to 1983. The record is 255 days in 1982, marked on the chart; the median year is 172 days.
Longest dry spell (CDD) at Iapi by year
YearLongest dry spell (CDD)
1934174 days
1935220 days
1936158 days
1937164 days
1938217 days
1939115 days
1940177 days
1941219 days
1942218 days
194382 days
1944175 days
1946182 days
194861 days
1949167 days
1950223 days
1951184 days
1952203 days
1953160 days
1954176 days
1955172 days
1956172 days
1957236 days
1958225 days
1959216 days
1960199 days
1961219 days
1962156 days
1963190 days
1964113 days
196591 days
1966164 days
1967154 days
1968145 days
1969164 days
1970149 days
1971154 days
197290 days
197371 days
1974190 days
197598 days
1976166 days
1977151 days
1978184 days
1979188 days
1980245 days
198122 days
1982255 days
198337 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

43 years, 1934 to 1982

A day with at least 61.1 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 167.4 mm (6.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Iapi: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years61.1 mm (2.4 in)
5 years84.3 mm (3.3 in)
10 years101.6 mm (4.0 in)
25 years125.8 mm (5.0 in)
50 years145.8 mm (5.7 in)Longer than the 43 years of record
100 years167.4 mm (6.6 in)Longer than the 43 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, 43 years of values from 1934 to 1982.

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: 185.0 mm (7.3 in) in 1978; 125.0 mm (4.9 in) in 1977; 120.6 mm (4.7 in) in 1957.

Download the Data

  • Data for Iapi standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Iapi 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). Records are computed by this site and are not official.

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