Petrolina Weather Records (BR037897030)

Record envelope, standing records and threshold days for Petrolina (BR037897030), Brazil, with 92 years of record.

Key Facts for Petrolina

Petrolina (BR037897030) is a weather station in Brazil at -9.38 latitude and -40.48 longitude, 370 m (1,214 ft) above sea level.
The station reports from 1911 to 2002, 92 years of record.
882 records set at Petrolina still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Petrolina set a daily record precipitation of 30.0 mm (1.2 in) on 6 November 1979.

About the Station

Location: Brazil, -9.38 latitude, -40.48 longitude.
Elevation: 370 m (1,214 ft).
Period of record: 1911 to 2002, 92 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 Petrolina. 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 Petrolina, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	36.0 C (96.8 F)	20.0 C (68.0 F)	n/a	n/a
Feb	33.7 C (92.7 F)	21.0 C (69.8 F)	n/a	n/a
Mar	35.8 C (96.4 F)	18.7 C (65.7 F)	n/a	n/a
Apr	34.0 C (93.2 F)	21.0 C (69.8 F)	n/a	n/a
May	39.0 C (102.2 F)	19.0 C (66.2 F)	n/a	n/a
Jun	33.0 C (91.4 F)	18.0 C (64.4 F)	n/a	n/a
Jul	31.0 C (87.8 F)	17.0 C (62.6 F)	n/a	n/a
Aug	35.0 C (95.0 F)	17.0 C (62.6 F)	n/a	n/a
Sep	39.0 C (102.2 F)	18.0 C (64.4 F)	n/a	n/a
Oct	37.0 C (98.6 F)	19.0 C (66.2 F)	n/a	n/a
Nov	38.2 C (100.8 F)	18.7 C (65.7 F)	n/a	n/a
Dec	35.1 C (95.2 F)	11.0 C (51.8 F)	n/a	n/a

Which Years Hold Standing Records

882 standing records

882 records at Petrolina still stand. 1979 holds the most, with 524.

All-Time Record Progression

2 new records

2 all-time records were set at Petrolina between 9 March 1960 and 15 April 1964. Each dot is a new record.

When Petrolina set new all-time records
Date	Kind	Detail
1960-03-09	Record daily precipitation	Record daily precipitation 156.0 mm (6.1 in)
1964-04-15	Record daily precipitation	Record daily precipitation 156.5 mm (6.2 in)

Wettest Day of Each Month

Apr: 156.5 mm (6.2 in)

The wettest day on record for each calendar month at Petrolina. The most was 156.5 mm (6.2 in) on 15 April 1964.

Record daily precipitation for each month at Petrolina
Month	Record daily precipitation (mm)	Date
Jan	136.0 mm (5.4 in)	20 January 1964
Feb	120.5 mm (4.7 in)	12 February 1976
Mar	156.0 mm (6.1 in)	9 March 1960
Apr	156.5 mm (6.2 in)	15 April 1964
May	60.0 mm (2.4 in)	5 May 1937
Jun	27.4 mm (1.1 in)	25 June 1919
Jul	24.7 mm (1.0 in)	18 July 1975
Aug	16.7 mm (0.7 in)	3 August 1964
Sep	66.6 mm (2.6 in)	4 September 1939
Oct	85.0 mm (3.3 in)	1 October 1973
Nov	93.2 mm (3.7 in)	30 November 1976
Dec	87.0 mm (3.4 in)	5 December 1964

Period of Record Coverage

1974 to 2002

16 years of record at Petrolina, 1974 to 2002. 16 years have data for under 90 percent of days and are left out of rankings: 1974, 1977, 1978, 1979, 1980, 1981, 1982, 1983 and others.

Days with data per year at Petrolina
Year	Days with data	Share of year	Complete
1974	21	6%	No
1977	1	0%	No
1978	21	6%	No
1979	133	36%	No
1980	13	4%	No
1981	16	4%	No
1982	8	2%	No
1983	6	2%	No
1984	12	3%	No
1985	3	1%	No
1986	1	0%	No
1987	1	0%	No
1988	2	1%	No
1991	5	1%	No
1992	4	1%	No
2002	1	0%	No

Latest Records

Latest records at Petrolina
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 November 1979	Petrolina, BR	daily rain	30.0 mm (1.2 in)	4.2 mm (0.17 in)	12 years	11 of 100 (Routine)
8 May 1979	Petrolina, BR	daily rain	9.9 mm (0.39 in)	8.6 mm (0.34 in)	66 years	20 of 100 (Routine)
26 April 1979	Petrolina, BR	daily rain	23.1 mm (0.9 in)	13.4 mm (0.5 in)	0 years	12 of 100 (Routine)
2 February 1979	Petrolina, BR	daily rain	27.9 mm (1.1 in)	4.1 mm (0.16 in)	44 years	21 of 100 (Routine)
15 January 1979	Petrolina, BR	daily rain	18.0 mm (0.7 in)	3.8 mm (0.15 in)	37 years	19 of 100 (Routine)
2 August 1978	Petrolina, BR	daily rain	2.0 mm (0.08 in)	0.9 mm (0.04 in)	37 years	19 of 100 (Routine)
29 July 1978	Petrolina, BR	daily rain	6.0 mm (0.24 in)	2.8 mm (0.11 in)	29 years	18 of 100 (Routine)
27 July 1978	Petrolina, BR	daily rain	8.5 mm (0.33 in)	8.3 mm (0.33 in)	63 years	20 of 100 (Routine)
13 June 1978	Petrolina, BR	daily rain	8.3 mm (0.33 in)	8.3 mm (0.33 in)	67 years	20 of 100 (Routine)
3 June 1978	Petrolina, BR	daily rain	3.9 mm (0.15 in)	3.3 mm (0.13 in)	57 years	20 of 100 (Routine)
26 April 1978	Petrolina, BR	daily rain	9.7 mm (0.38 in)	1.4 mm (0.06 in)	12 years	9 of 100 (Routine)
11 February 1978	Petrolina, BR	daily rain	78.6 mm (3.1 in)	9.1 mm (0.36 in)	14 years	15 of 100 (Routine)
9 February 1978	Petrolina, BR	daily rain	82.8 mm (3.3 in)	50.1 mm (2.0 in)	14 years	37 of 100 (Notable)
1 January 1978	Petrolina, BR	daily rain	131.2 mm (5.2 in)	106.7 mm (4.2 in)	44 years	59 of 100 (Notable)
27 September 1977	Petrolina, BR	daily rain	11.3 mm (0.4 in)	11.3 mm (0.4 in)	66 years	20 of 100 (Routine)
26 September 1977	Petrolina, BR	daily rain	3.6 mm (0.14 in)	3.6 mm (0.14 in)	66 years	20 of 100 (Routine)
17 August 1977	Petrolina, BR	daily rain	2.3 mm (0.09 in)	1.3 mm (0.05 in)	46 years	20 of 100 (Routine)
14 July 1977	Petrolina, BR	daily rain	12.5 mm (0.5 in)	10.5 mm (0.4 in)	4 years	20 of 100 (Routine)
18 June 1977	Petrolina, BR	daily rain	5.8 mm (0.23 in)	3.0 mm (0.12 in)	10 years	13 of 100 (Routine)
5 June 1977	Petrolina, BR	daily rain	19.4 mm (0.8 in)	18.8 mm (0.7 in)	8 years	20 of 100 (Routine)

Extremes by Year

1911 to 2002

Yearly extremes at Petrolina: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.0 C (102.2 F)	1974	35.3 C (95.5 F)	16
Coldest night (TNn)	11.0 C (51.8 F)	1978	18.8 C (65.8 F)	16
Wettest day (Rx1day)	156.5 mm (6.2 in)	1964	60.0 mm (2.4 in)	79
Wettest five days (Rx5day)	260.9 mm (10.3 in)	1911	105.1 mm (4.1 in)	69
Longest dry spell (CDD)	244 days	1915	124 days	79

Hottest day (TXx)

The hottest day of the year at Petrolina, 1911 to 2002. The record is 39.0 C (102.2 F) in 1974, marked on the chart; the median year is 35.3 C (95.5 F).

Hottest day (TXx) at Petrolina by year
Year	Hottest day (TXx)
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	39.0 C (102.2 F)
1975	n/a
1976	n/a
1977	37.0 C (98.6 F)
1978	35.0 C (95.0 F)
1979	39.0 C (102.2 F)
1980	36.0 C (96.8 F)
1981	37.0 C (98.6 F)
1982	35.1 C (95.2 F)
1983	35.4 C (95.7 F)
1984	38.2 C (100.8 F)
1985	34.2 C (93.6 F)
1986	31.2 C (88.2 F)
1987	31.1 C (88.0 F)
1988	33.8 C (92.8 F)
1991	37.0 C (98.6 F)
1992	31.7 C (89.1 F)
2002	31.2 C (88.2 F)

Coldest night (TNn)

The coldest night of the year at Petrolina, 1911 to 2002. The record is 11.0 C (51.8 F) in 1978, marked on the chart; the median year is 18.8 C (65.8 F).

Coldest night (TNn) at Petrolina by year
Year	Coldest night (TNn)
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	17.0 C (62.6 F)
1975	n/a
1976	n/a
1977	25.0 C (77.0 F)
1978	11.0 C (51.8 F)
1979	18.0 C (64.4 F)
1980	17.0 C (62.6 F)
1981	18.0 C (64.4 F)
1982	19.1 C (66.4 F)
1983	18.9 C (66.0 F)
1984	18.7 C (65.7 F)
1985	18.7 C (65.7 F)
1986	20.3 C (68.5 F)
1987	20.7 C (69.3 F)
1988	21.7 C (71.1 F)
1991	18.6 C (65.5 F)
1992	19.0 C (66.2 F)
2002	21.4 C (70.5 F)

Wettest day (Rx1day)

The wettest day of the year at Petrolina, 1911 to 2002. The record is 156.5 mm (6.2 in) in 1964, marked on the chart; the median year is 60.0 mm (2.4 in).

Wettest day (Rx1day) at Petrolina by year
Year	Wettest day (Rx1day)
1911	124.5 mm (4.9 in)
1912	67.0 mm (2.6 in)
1913	63.6 mm (2.5 in)
1914	29.2 mm (1.1 in)
1915	20.4 mm (0.8 in)
1916	42.2 mm (1.7 in)
1917	58.7 mm (2.3 in)
1918	68.3 mm (2.7 in)
1919	50.9 mm (2.0 in)
1920	68.6 mm (2.7 in)
1921	81.2 mm (3.2 in)
1922	66.6 mm (2.6 in)
1923	69.5 mm (2.7 in)
1924	96.8 mm (3.8 in)
1925	67.9 mm (2.7 in)
1926	90.4 mm (3.6 in)
1927	67.9 mm (2.7 in)
1928	42.5 mm (1.7 in)
1929	51.4 mm (2.0 in)
1930	72.8 mm (2.9 in)
1931	35.8 mm (1.4 in)
1932	26.2 mm (1.0 in)
1933	45.0 mm (1.8 in)
1934	48.5 mm (1.9 in)
1935	42.6 mm (1.7 in)
1936	44.9 mm (1.8 in)
1937	60.0 mm (2.4 in)
1938	56.0 mm (2.2 in)
1939	66.6 mm (2.6 in)
1940	72.0 mm (2.8 in)
1941	65.3 mm (2.6 in)
1942	111.4 mm (4.4 in)
1943	31.3 mm (1.2 in)
1944	76.5 mm (3.0 in)
1945	30.7 mm (1.2 in)
1946	54.4 mm (2.1 in)
1947	76.2 mm (3.0 in)
1948	42.0 mm (1.7 in)
1949	71.0 mm (2.8 in)
1950	42.0 mm (1.7 in)
1951	78.5 mm (3.1 in)
1952	46.4 mm (1.8 in)
1953	65.0 mm (2.6 in)
1954	56.0 mm (2.2 in)
1955	91.0 mm (3.6 in)
1956	68.7 mm (2.7 in)
1957	110.0 mm (4.3 in)
1958	27.7 mm (1.1 in)
1959	45.2 mm (1.8 in)
1960	156.0 mm (6.1 in)
1961	68.9 mm (2.7 in)
1962	38.2 mm (1.5 in)
1963	56.0 mm (2.2 in)
1964	156.5 mm (6.2 in)
1965	82.5 mm (3.2 in)
1966	98.0 mm (3.9 in)
1967	81.9 mm (3.2 in)
1968	48.0 mm (1.9 in)
1969	51.4 mm (2.0 in)
1970	50.0 mm (2.0 in)
1971	51.9 mm (2.0 in)
1972	82.2 mm (3.2 in)
1973	85.0 mm (3.3 in)
1974	80.0 mm (3.1 in)
1975	65.9 mm (2.6 in)
1976	120.5 mm (4.7 in)
1977	72.0 mm (2.8 in)
1978	131.2 mm (5.2 in)
1979	30.0 mm (1.2 in)
1980	10.9 mm (0.4 in)
1981	4.1 mm (0.16 in)
1982	0.0 mm (0.00 in)
1983	55.9 mm (2.2 in)
1984	2.0 mm (0.08 in)
1985	0.0 mm (0.00 in)
1986	n/a
1987	0.8 mm (0.03 in)
1988	0.0 mm (0.00 in)
1991	63.0 mm (2.5 in)
1992	0.0 mm (0.00 in)
2002	n/a

Wettest five days (Rx5day)

The wettest five days of the year at Petrolina, 1911 to 2002. The record is 260.9 mm (10.3 in) in 1911, marked on the chart; the median year is 105.1 mm (4.1 in).

Wettest five days (Rx5day) at Petrolina by year
Year	Wettest five days (Rx5day)
1911	260.9 mm (10.3 in)
1912	135.0 mm (5.3 in)
1913	65.5 mm (2.6 in)
1914	77.1 mm (3.0 in)
1915	86.1 mm (3.4 in)
1916	54.7 mm (2.2 in)
1917	88.9 mm (3.5 in)
1918	75.0 mm (3.0 in)
1919	125.9 mm (5.0 in)
1920	89.2 mm (3.5 in)
1921	124.6 mm (4.9 in)
1922	123.3 mm (4.9 in)
1923	201.9 mm (7.9 in)
1924	139.7 mm (5.5 in)
1925	141.6 mm (5.6 in)
1926	124.3 mm (4.9 in)
1927	141.0 mm (5.6 in)
1928	92.3 mm (3.6 in)
1929	132.7 mm (5.2 in)
1930	151.4 mm (6.0 in)
1931	77.9 mm (3.1 in)
1932	48.2 mm (1.9 in)
1933	45.0 mm (1.8 in)
1934	88.9 mm (3.5 in)
1935	78.5 mm (3.1 in)
1936	65.2 mm (2.6 in)
1937	107.3 mm (4.2 in)
1938	96.8 mm (3.8 in)
1939	68.4 mm (2.7 in)
1940	124.0 mm (4.9 in)
1941	157.5 mm (6.2 in)
1942	111.4 mm (4.4 in)
1943	63.9 mm (2.5 in)
1944	98.5 mm (3.9 in)
1945	57.2 mm (2.3 in)
1946	66.9 mm (2.6 in)
1947	113.8 mm (4.5 in)
1948	59.3 mm (2.3 in)
1949	131.1 mm (5.2 in)
1950	78.0 mm (3.1 in)
1951	78.5 mm (3.1 in)
1952	82.4 mm (3.2 in)
1953	105.1 mm (4.1 in)
1954	105.0 mm (4.1 in)
1955	140.8 mm (5.5 in)
1956	88.3 mm (3.5 in)
1957	259.4 mm (10.2 in)
1958	56.8 mm (2.2 in)
1959	57.0 mm (2.2 in)
1960	250.7 mm (9.9 in)
1961	68.9 mm (2.7 in)
1962	64.2 mm (2.5 in)
1963	62.0 mm (2.4 in)
1964	216.4 mm (8.5 in)
1965	122.5 mm (4.8 in)
1966	116.3 mm (4.6 in)
1967	147.3 mm (5.8 in)
1968	104.0 mm (4.1 in)
1969	105.4 mm (4.1 in)
1970	131.6 mm (5.2 in)
1971	89.5 mm (3.5 in)
1972	113.7 mm (4.5 in)
1973	117.0 mm (4.6 in)
1974	144.2 mm (5.7 in)
1975	152.3 mm (6.0 in)
1976	168.1 mm (6.6 in)
1977	136.5 mm (5.4 in)
1978	207.1 mm (8.2 in)
1979	43.2 mm (1.7 in)
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1991	n/a
1992	n/a
2002	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Petrolina, 1911 to 2002. The record is 244 days in 1915, marked on the chart; the median year is 124 days.

Longest dry spell (CDD) at Petrolina by year
Year	Longest dry spell (CDD)
1911	181 days
1912	92 days
1913	96 days
1914	133 days
1915	244 days
1916	74 days
1917	182 days
1918	190 days
1919	189 days
1920	83 days
1921	155 days
1922	225 days
1923	124 days
1924	155 days
1925	156 days
1926	196 days
1927	197 days
1928	111 days
1929	215 days
1930	124 days
1931	139 days
1932	108 days
1933	193 days
1934	155 days
1935	139 days
1936	175 days
1937	85 days
1938	120 days
1939	63 days
1940	59 days
1941	180 days
1942	173 days
1943	124 days
1944	156 days
1945	143 days
1946	136 days
1947	221 days
1948	99 days
1949	147 days
1950	206 days
1951	190 days
1952	223 days
1953	84 days
1954	99 days
1955	186 days
1956	108 days
1957	158 days
1958	86 days
1959	121 days
1960	97 days
1961	138 days
1962	35 days
1963	194 days
1964	95 days
1965	207 days
1966	223 days
1967	65 days
1968	133 days
1969	164 days
1970	163 days
1971	65 days
1972	102 days
1973	39 days
1974	136 days
1975	54 days
1976	108 days
1977	59 days
1978	102 days
1979	13 days
1980	1 day
1981	2 days
1982	2 days
1983	1 day
1984	2 days
1985	1 day
1986	n/a
1987	1 day
1988	1 day
1991	1 day
1992	1 day
2002	n/a

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

65 years, 1912 to 1978

A day with at least 62.4 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 153.3 mm (6.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Petrolina: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	62.4 mm (2.5 in)
5 years	86.6 mm (3.4 in)
10 years	102.7 mm (4.0 in)
25 years	123.1 mm (4.8 in)
50 years	138.3 mm (5.4 in)
100 years	153.3 mm (6.0 in)	Longer than the 65 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, 65 years of values from 1912 to 1978.

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: 156.5 mm (6.2 in) in 1964; 156.0 mm (6.1 in) in 1960; 131.2 mm (5.2 in) in 1978.

Download the Data

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