Major Isidoro (Sertaozinho) Weather Records (BR038960060)

Record envelope, standing records and threshold days for Major Isidoro (Sertaozinho) (BR038960060), Brazil, with 71 years of record.

Key Facts for Major Isidoro (Sertaozinho)

Major Isidoro (Sertaozinho) (BR038960060) is a weather station in Brazil at -9.53 latitude and -36.98 longitude, 217 m (712 ft) above sea level.
The station reports from 1913 to 1983, 71 years of record.
0 records set at Major Isidoro (Sertaozinho) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Major Isidoro (Sertaozinho) set a daily record precipitation of 23.5 mm (0.9 in) on 7 February 1983.

About the Station

Location: Brazil, -9.53 latitude, -36.98 longitude.
Elevation: 217 m (712 ft).
Period of record: 1913 to 1983, 71 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Major Isidoro (Sertaozinho). 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 Major Isidoro (Sertaozinho), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

0 standing records

0 records at Major Isidoro (Sertaozinho) still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Major Isidoro (Sertaozinho) between 25 November 1944 and 25 November 1944. Each dot is a new record.

Wettest Day of Each Month

Nov: 115.8 mm (4.6 in)

The wettest day on record for each calendar month at Major Isidoro (Sertaozinho). The most was 115.8 mm (4.6 in) on 25 November 1944.

Record daily precipitation for each month at Major Isidoro (Sertaozinho)
Month	Record daily precipitation (mm)	Date
Jan	76.4 mm (3.0 in)	20 January 1974
Feb	69.5 mm (2.7 in)	1 February 1980
Mar	76.4 mm (3.0 in)	28 March 1960
Apr	82.2 mm (3.2 in)	2 April 1977
May	87.1 mm (3.4 in)	20 May 1977
Jun	65.2 mm (2.6 in)	24 June 1948
Jul	46.6 mm (1.8 in)	10 July 1921
Aug	65.8 mm (2.6 in)	9 August 1918
Sep	40.9 mm (1.6 in)	26 September 1966
Oct	54.6 mm (2.1 in)	24 October 1921
Nov	115.8 mm (4.6 in)	25 November 1944
Dec	97.8 mm (3.9 in)	23 December 1963

Latest Records

Latest records at Major Isidoro (Sertaozinho)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
7 February 1983	Major Isidoro (Sertaozinho), BR	daily rain	23.5 mm (0.9 in)	9.9 mm (0.39 in)	61 years	20 of 100 (Routine)
24 December 1981	Major Isidoro (Sertaozinho), BR	daily rain	41.1 mm (1.6 in)	36.0 mm (1.4 in)	18 years	34 of 100 (Routine)
21 December 1981	Major Isidoro (Sertaozinho), BR	daily rain	16.7 mm (0.7 in)	6.7 mm (0.26 in)	2 years	10 of 100 (Routine)
25 March 1981	Major Isidoro (Sertaozinho), BR	daily rain	39.6 mm (1.6 in)	22.8 mm (0.9 in)	40 years	34 of 100 (Routine)
23 March 1981	Major Isidoro (Sertaozinho), BR	daily rain	62.2 mm (2.4 in)	44.9 mm (1.8 in)	30 years	47 of 100 (Notable)
14 March 1981	Major Isidoro (Sertaozinho), BR	daily rain	36.4 mm (1.4 in)	14.4 mm (0.6 in)	24 years	23 of 100 (Routine)
12 March 1981	Major Isidoro (Sertaozinho), BR	daily rain	57.5 mm (2.3 in)	23.5 mm (0.9 in)	20 years	28 of 100 (Routine)
2 July 1980	Major Isidoro (Sertaozinho), BR	daily rain	35.8 mm (1.4 in)	24.9 mm (1.0 in)	24 years	53 of 100 (Notable)
10 June 1980	Major Isidoro (Sertaozinho), BR	daily rain	35.2 mm (1.4 in)	5.3 mm (0.21 in)	33 years	21 of 100 (Routine)
18 February 1980	Major Isidoro (Sertaozinho), BR	daily rain	46.4 mm (1.8 in)	34.3 mm (1.4 in)	34 years	43 of 100 (Notable)
13 February 1980	Major Isidoro (Sertaozinho), BR	daily rain	34.1 mm (1.3 in)	3.4 mm (0.13 in)	33 years	18 of 100 (Routine)
12 February 1980	Major Isidoro (Sertaozinho), BR	daily rain	48.5 mm (1.9 in)	4.2 mm (0.17 in)	44 years	22 of 100 (Routine)
1 February 1980	Major Isidoro (Sertaozinho), BR	monthly rain	69.5 mm (2.7 in)	0.5 mm (0.02 in)	63 years	35 of 100 (Notable)
7 January 1980	Major Isidoro (Sertaozinho), BR	daily rain	17.3 mm (0.7 in)	10.8 mm (0.4 in)	22 years	20 of 100 (Routine)
5 January 1980	Major Isidoro (Sertaozinho), BR	daily rain	17.7 mm (0.7 in)	13.0 mm (0.5 in)	44 years	20 of 100 (Routine)
21 December 1979	Major Isidoro (Sertaozinho), BR	daily rain	10.0 mm (0.4 in)	2.0 mm (0.08 in)	58 years	20 of 100 (Routine)
8 September 1979	Major Isidoro (Sertaozinho), BR	daily rain	8.5 mm (0.33 in)	1.9 mm (0.07 in)	34 years	19 of 100 (Routine)
3 July 1979	Major Isidoro (Sertaozinho), BR	daily rain	23.6 mm (0.9 in)	5.0 mm (0.20 in)	60 years	20 of 100 (Routine)
4 May 1979	Major Isidoro (Sertaozinho), BR	daily rain	23.6 mm (0.9 in)	1.7 mm (0.07 in)	45 years	20 of 100 (Routine)
24 April 1979	Major Isidoro (Sertaozinho), BR	daily rain	50.2 mm (2.0 in)	12.6 mm (0.5 in)	4 years	16 of 100 (Routine)

Extremes by Year

1913 to 1983

Yearly extremes at Major Isidoro (Sertaozinho): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	115.8 mm (4.6 in)	1944	54.4 mm (2.1 in)	71
Wettest five days (Rx5day)	193.1 mm (7.6 in)	1960	91.0 mm (3.6 in)	71
Longest dry spell (CDD)	123 days	1937	46 days	71

Wettest day (Rx1day)

The wettest day of the year at Major Isidoro (Sertaozinho), 1913 to 1983. The record is 115.8 mm (4.6 in) in 1944, marked on the chart; the median year is 54.4 mm (2.1 in).

Wettest day (Rx1day) at Major Isidoro (Sertaozinho) by year
Year	Wettest day (Rx1day)
1913	47.2 mm (1.9 in)
1914	62.5 mm (2.5 in)
1915	52.5 mm (2.1 in)
1916	69.0 mm (2.7 in)
1917	42.7 mm (1.7 in)
1918	65.8 mm (2.6 in)
1919	53.3 mm (2.1 in)
1920	60.5 mm (2.4 in)
1921	57.4 mm (2.3 in)
1922	66.9 mm (2.6 in)
1923	57.8 mm (2.3 in)
1924	33.5 mm (1.3 in)
1925	26.0 mm (1.0 in)
1926	36.8 mm (1.4 in)
1927	55.5 mm (2.2 in)
1928	28.4 mm (1.1 in)
1929	55.8 mm (2.2 in)
1930	69.8 mm (2.7 in)
1931	47.5 mm (1.9 in)
1932	21.1 mm (0.8 in)
1933	62.8 mm (2.5 in)
1934	54.0 mm (2.1 in)
1935	60.5 mm (2.4 in)
1936	45.7 mm (1.8 in)
1937	32.5 mm (1.3 in)
1938	27.8 mm (1.1 in)
1939	66.7 mm (2.6 in)
1940	48.9 mm (1.9 in)
1941	60.8 mm (2.4 in)
1942	38.0 mm (1.5 in)
1943	24.9 mm (1.0 in)
1944	115.8 mm (4.6 in)
1945	80.8 mm (3.2 in)
1946	38.5 mm (1.5 in)
1947	91.2 mm (3.6 in)
1948	65.2 mm (2.6 in)
1949	78.7 mm (3.1 in)
1950	39.4 mm (1.6 in)
1951	40.5 mm (1.6 in)
1952	44.8 mm (1.8 in)
1953	51.4 mm (2.0 in)
1954	59.5 mm (2.3 in)
1955	53.0 mm (2.1 in)
1956	40.6 mm (1.6 in)
1957	64.8 mm (2.6 in)
1958	38.4 mm (1.5 in)
1959	46.7 mm (1.8 in)
1960	76.4 mm (3.0 in)
1961	72.6 mm (2.9 in)
1962	42.5 mm (1.7 in)
1963	97.8 mm (3.9 in)
1964	64.4 mm (2.5 in)
1965	41.2 mm (1.6 in)
1966	64.5 mm (2.5 in)
1967	68.4 mm (2.7 in)
1968	56.6 mm (2.2 in)
1969	71.2 mm (2.8 in)
1970	27.4 mm (1.1 in)
1971	46.4 mm (1.8 in)
1972	72.8 mm (2.9 in)
1973	41.8 mm (1.6 in)
1974	76.4 mm (3.0 in)
1975	65.6 mm (2.6 in)
1976	42.0 mm (1.7 in)
1977	87.1 mm (3.4 in)
1978	38.3 mm (1.5 in)
1979	50.2 mm (2.0 in)
1980	69.5 mm (2.7 in)
1981	62.2 mm (2.4 in)
1982	54.4 mm (2.1 in)
1983	23.5 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Major Isidoro (Sertaozinho), 1913 to 1983. The record is 193.1 mm (7.6 in) in 1960, marked on the chart; the median year is 91.0 mm (3.6 in).

Wettest five days (Rx5day) at Major Isidoro (Sertaozinho) by year
Year	Wettest five days (Rx5day)
1913	119.4 mm (4.7 in)
1914	83.8 mm (3.3 in)
1915	138.5 mm (5.5 in)
1916	80.8 mm (3.2 in)
1917	105.1 mm (4.1 in)
1918	87.6 mm (3.4 in)
1919	107.2 mm (4.2 in)
1920	145.7 mm (5.7 in)
1921	106.3 mm (4.2 in)
1922	120.6 mm (4.7 in)
1923	67.2 mm (2.6 in)
1924	80.6 mm (3.2 in)
1925	36.9 mm (1.5 in)
1926	66.6 mm (2.6 in)
1927	103.2 mm (4.1 in)
1928	63.2 mm (2.5 in)
1929	140.0 mm (5.5 in)
1930	119.0 mm (4.7 in)
1931	80.2 mm (3.2 in)
1932	29.9 mm (1.2 in)
1933	167.2 mm (6.6 in)
1934	74.2 mm (2.9 in)
1935	85.2 mm (3.4 in)
1936	87.7 mm (3.5 in)
1937	60.3 mm (2.4 in)
1938	34.2 mm (1.3 in)
1939	75.9 mm (3.0 in)
1940	91.1 mm (3.6 in)
1941	91.2 mm (3.6 in)
1942	78.0 mm (3.1 in)
1943	46.1 mm (1.8 in)
1944	146.8 mm (5.8 in)
1945	144.8 mm (5.7 in)
1946	51.3 mm (2.0 in)
1947	159.2 mm (6.3 in)
1948	103.3 mm (4.1 in)
1949	191.9 mm (7.6 in)
1950	68.4 mm (2.7 in)
1951	91.0 mm (3.6 in)
1952	129.6 mm (5.1 in)
1953	94.3 mm (3.7 in)
1954	71.3 mm (2.8 in)
1955	88.9 mm (3.5 in)
1956	70.8 mm (2.8 in)
1957	125.0 mm (4.9 in)
1958	64.2 mm (2.5 in)
1959	58.6 mm (2.3 in)
1960	193.1 mm (7.6 in)
1961	105.5 mm (4.2 in)
1962	63.2 mm (2.5 in)
1963	108.8 mm (4.3 in)
1964	95.0 mm (3.7 in)
1965	45.5 mm (1.8 in)
1966	95.3 mm (3.8 in)
1967	88.9 mm (3.5 in)
1968	130.9 mm (5.2 in)
1969	117.3 mm (4.6 in)
1970	33.6 mm (1.3 in)
1971	70.1 mm (2.8 in)
1972	115.2 mm (4.5 in)
1973	55.7 mm (2.2 in)
1974	104.9 mm (4.1 in)
1975	137.2 mm (5.4 in)
1976	98.4 mm (3.9 in)
1977	137.8 mm (5.4 in)
1978	86.0 mm (3.4 in)
1979	76.7 mm (3.0 in)
1980	101.3 mm (4.0 in)
1981	140.2 mm (5.5 in)
1982	86.2 mm (3.4 in)
1983	43.9 mm (1.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Major Isidoro (Sertaozinho), 1913 to 1983. The record is 123 days in 1937, marked on the chart; the median year is 46 days.

Longest dry spell (CDD) at Major Isidoro (Sertaozinho) by year
Year	Longest dry spell (CDD)
1913	28 days
1914	62 days
1915	74 days
1916	38 days
1917	56 days
1918	43 days
1919	92 days
1920	39 days
1921	28 days
1922	46 days
1923	16 days
1924	51 days
1925	84 days
1926	44 days
1927	76 days
1928	59 days
1929	67 days
1930	42 days
1931	32 days
1932	36 days
1933	41 days
1934	36 days
1935	46 days
1936	58 days
1937	123 days
1938	100 days
1939	39 days
1940	47 days
1941	40 days
1942	47 days
1943	36 days
1944	34 days
1945	47 days
1946	50 days
1947	31 days
1948	20 days
1949	41 days
1950	36 days
1951	72 days
1952	61 days
1953	47 days
1954	50 days
1955	33 days
1956	32 days
1957	50 days
1958	56 days
1959	66 days
1960	105 days
1961	30 days
1962	53 days
1963	46 days
1964	38 days
1965	42 days
1966	33 days
1967	29 days
1968	31 days
1969	32 days
1970	48 days
1971	53 days
1972	57 days
1973	49 days
1974	43 days
1975	63 days
1976	35 days
1977	30 days
1978	34 days
1979	75 days
1980	49 days
1981	41 days
1982	91 days
1983	61 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

67 years, 1914 to 1983

A day with at least 54.3 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 101.4 mm (4.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Major Isidoro (Sertaozinho): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	54.3 mm (2.1 in)
5 years	70.9 mm (2.8 in)
10 years	80.0 mm (3.1 in)
25 years	89.8 mm (3.5 in)
50 years	96.0 mm (3.8 in)
100 years	101.4 mm (4.0 in)	Longer than the 67 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, 67 years of values from 1914 to 1983.

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: 115.8 mm (4.6 in) in 1944; 97.8 mm (3.9 in) in 1963; 91.2 mm (3.6 in) in 1947.

Download the Data

Data for Major Isidoro (Sertaozinho) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Major Isidoro (Sertaozinho) 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a