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

Riachao Weather Records (BR028920120)

Record envelope, standing records and threshold days for Riachao (BR028920120), Brazil, with 51 years of record.

Key Facts for Riachao

  • Riachao (BR028920120) is a weather station in Brazil at -4.52 latitude and -38.95 longitude, 130 m (427 ft) above sea level.
  • The station reports from 1912 to 1962, 51 years of record.
  • 0 records set at Riachao still stand.
  • Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

  • Location: Brazil, -4.52 latitude, -38.95 longitude.
  • Elevation: 130 m (427 ft).
  • Period of record: 1912 to 1962, 51 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Riachao, with 2026 drawn through them The band shows the record high and record low for each calendar day at Riachao. 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 Riachao. 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 Riachao, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
Febn/an/an/an/a
Marn/an/an/an/a
Aprn/an/an/an/a
Mayn/an/an/an/a
Junn/an/an/an/a
Juln/an/an/an/a
Augn/an/an/an/a
Sepn/an/an/an/a
Octn/an/an/an/a
Novn/an/an/an/a
Decn/an/an/an/a

Which Years Hold Standing Records

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

Wettest Day of Each Month

Feb: 102.0 mm (4.0 in)
Record daily precipitation for each month at Riachao The wettest day on record for each calendar month at Riachao. The most was 102.0 mm (4.0 in) on 23 February 1917. 050100150 Jan: 92.1 mm (3.6 in), 1 January 1919 Jan Feb: 102.0 mm (4.0 in), 23 February 1917 Feb Mar: 70.2 mm (2.8 in), 17 March 1917 Mar Apr: 62.0 mm (2.4 in), 24 April 1926 Apr May: 72.2 mm (2.8 in), 1 May 1928 May Jun: 62.4 mm (2.5 in), 1 June 1912 Jun Jul: 64.5 mm (2.5 in), 10 July 1921 Jul Aug: 49.7 mm (2.0 in), 9 August 1918 Aug Sep: 14.1 mm (0.6 in), 25 September 1918 Sep Oct: 10.5 mm (0.4 in), 14 October 1913 Oct Nov: 28.3 mm (1.1 in), 20 November 1921 Nov Dec: 53.0 mm (2.1 in), 16 December 1962 Dec
The wettest day on record for each calendar month at Riachao. The most was 102.0 mm (4.0 in) on 23 February 1917.
Record daily precipitation for each month at Riachao
MonthRecord daily precipitation (mm)Date
Jan92.1 mm (3.6 in)1 January 1919
Feb102.0 mm (4.0 in)23 February 1917
Mar70.2 mm (2.8 in)17 March 1917
Apr62.0 mm (2.4 in)24 April 1926
May72.2 mm (2.8 in)1 May 1928
Jun62.4 mm (2.5 in)1 June 1912
Jul64.5 mm (2.5 in)10 July 1921
Aug49.7 mm (2.0 in)9 August 1918
Sep14.1 mm (0.6 in)25 September 1918
Oct10.5 mm (0.4 in)14 October 1913
Nov28.3 mm (1.1 in)20 November 1921
Dec53.0 mm (2.1 in)16 December 1962

Latest Records

0

No records were set at this station in the latest data.

Extremes by Year

1912 to 1962
Yearly extremes at Riachao: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)102.0 mm (4.0 in)191752.2 mm (2.1 in)20
Wettest five days (Rx5day)244.1 mm (9.6 in)191799.1 mm (3.9 in)20
Longest dry spell (CDD)366 days1932123 days20

Wettest day (Rx1day)

Wettest day (Rx1day) at Riachao by year The wettest day of the year at Riachao, 1912 to 1962. The record is 102.0 mm (4.0 in) in 1917, marked on the chart; the median year is 52.2 mm (2.1 in). 05010015019201930194019501960Record: 102.0 mm (4.0 in) in 1917
The wettest day of the year at Riachao, 1912 to 1962. The record is 102.0 mm (4.0 in) in 1917, marked on the chart; the median year is 52.2 mm (2.1 in).
Wettest day (Rx1day) at Riachao by year
YearWettest day (Rx1day)
191262.4 mm (2.5 in)
191351.4 mm (2.0 in)
191446.6 mm (1.8 in)
191528.3 mm (1.1 in)
191659.0 mm (2.3 in)
1917102.0 mm (4.0 in)
191858.4 mm (2.3 in)
191992.1 mm (3.6 in)
192048.3 mm (1.9 in)
192165.2 mm (2.6 in)
192269.3 mm (2.7 in)
19250.0 mm (0.00 in)
192669.0 mm (2.7 in)
192751.0 mm (2.0 in)
192872.2 mm (2.8 in)
192948.5 mm (1.9 in)
193026.8 mm (1.1 in)
19310.0 mm (0.00 in)
19320.0 mm (0.00 in)
196253.0 mm (2.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Riachao by year The wettest five days of the year at Riachao, 1912 to 1962. The record is 244.1 mm (9.6 in) in 1917, marked on the chart; the median year is 99.1 mm (3.9 in). 010020030019201930194019501960Record: 244.1 mm (9.6 in) in 1917
The wettest five days of the year at Riachao, 1912 to 1962. The record is 244.1 mm (9.6 in) in 1917, marked on the chart; the median year is 99.1 mm (3.9 in).
Wettest five days (Rx5day) at Riachao by year
YearWettest five days (Rx5day)
1912130.8 mm (5.1 in)
191381.0 mm (3.2 in)
191484.4 mm (3.3 in)
191549.3 mm (1.9 in)
1916100.9 mm (4.0 in)
1917244.1 mm (9.6 in)
1918120.7 mm (4.8 in)
1919112.1 mm (4.4 in)
1920108.0 mm (4.3 in)
1921186.2 mm (7.3 in)
1922190.5 mm (7.5 in)
19250.0 mm (0.00 in)
1926168.0 mm (6.6 in)
1927111.0 mm (4.4 in)
192897.2 mm (3.8 in)
192996.9 mm (3.8 in)
193050.0 mm (2.0 in)
19310.0 mm (0.00 in)
19320.0 mm (0.00 in)
196261.0 mm (2.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Riachao by year The longest dry spell of the year at Riachao, 1912 to 1962. The record is 366 days in 1932, marked on the chart; the median year is 123 days. 010020030040019201930194019501960Record: 366 days in 1932
The longest dry spell of the year at Riachao, 1912 to 1962. The record is 366 days in 1932, marked on the chart; the median year is 123 days.
Longest dry spell (CDD) at Riachao by year
YearLongest dry spell (CDD)
191244 days
191326 days
191449 days
1915148 days
1916106 days
1917166 days
191891 days
191960 days
1920104 days
192149 days
1922124 days
1925122 days
1926227 days
1927180 days
1928183 days
1929148 days
1930113 days
1931365 days
1932366 days
1962196 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.

Download the Data

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