Iguatu Weather Records (BR038217420)

Record envelope, standing records and threshold days for Iguatu (BR038217420), Brazil, with 90 years of record.

Key Facts for Iguatu

Iguatu (BR038217420) is a weather station in Brazil at -6.37 latitude and -39.30 longitude, 217 m (712 ft) above sea level.
The station reports from 1912 to 2001, 90 years of record.
18 records set at Iguatu still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Iguatu set a daily record precipitation of 28.0 mm (1.1 in) on 21 January 1972.

About the Station

Location: Brazil, -6.37 latitude, -39.30 longitude.
Elevation: 217 m (712 ft).
Period of record: 1912 to 2001, 90 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 Iguatu. 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 Iguatu, 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	31.8 C (89.2 F)	24.1 C (75.4 F)	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	31.0 C (87.8 F)	24.3 C (75.7 F)	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	19.7 C (67.5 F)	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	34.0 C (93.2 F)	21.5 C (70.7 F)	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	36.2 C (97.2 F)	24.1 C (75.4 F)	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

18 standing records

18 records at Iguatu still stand. 1995 holds the most, with 8.

All-Time Record Progression

3 new records

3 all-time records were set at Iguatu between 23 April 1947 and 13 April 1964. Each dot is a new record.

When Iguatu set new all-time records
Date	Kind	Detail
1947-04-23	Record daily precipitation	Record daily precipitation 100.0 mm (3.9 in)
1949-02-10	Record daily precipitation	Record daily precipitation 124.0 mm (4.9 in)
1964-04-13	Record daily precipitation	Record daily precipitation 153.6 mm (6.0 in)

Wettest Day of Each Month

Apr: 153.6 mm (6.0 in)

The wettest day on record for each calendar month at Iguatu. The most was 153.6 mm (6.0 in) on 13 April 1964.

Record daily precipitation for each month at Iguatu
Month	Record daily precipitation (mm)	Date
Jan	148.0 mm (5.8 in)	19 January 1970
Feb	124.0 mm (4.9 in)	10 February 1949
Mar	120.0 mm (4.7 in)	28 March 1950
Apr	153.6 mm (6.0 in)	13 April 1964
May	145.6 mm (5.7 in)	10 May 1966
Jun	72.8 mm (2.9 in)	6 June 1923
Jul	80.0 mm (3.1 in)	24 July 1958
Aug	45.0 mm (1.8 in)	21 August 1939
Sep	40.0 mm (1.6 in)	24 September 1913
Oct	65.7 mm (2.6 in)	31 October 1963
Nov	58.6 mm (2.3 in)	15 November 1934
Dec	94.0 mm (3.7 in)	15 December 1951

Period of Record Coverage

1991 to 2001

3 years of record at Iguatu, 1991 to 2001. 3 years have data for under 90 percent of days and are left out of rankings: 1991, 1995, 2001.

Latest Records

Latest records at Iguatu
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 January 1972	Iguatu, BR	daily rain	28.0 mm (1.1 in)	13.0 mm (0.5 in)	21 years	18 of 100 (Routine)
23 December 1970	Iguatu, BR	daily rain	8.2 mm (0.32 in)	2.1 mm (0.08 in)	23 years	11 of 100 (Routine)
20 December 1970	Iguatu, BR	daily rain	22.0 mm (0.9 in)	16.8 mm (0.7 in)	23 years	18 of 100 (Routine)
9 November 1970	Iguatu, BR	daily rain	0.3 mm (0.01 in)	0.3 mm (0.01 in)	57 years	20 of 100 (Routine)
10 September 1970	Iguatu, BR	daily rain	5.4 mm (0.21 in)	4.4 mm (0.17 in)	39 years	20 of 100 (Routine)
11 August 1970	Iguatu, BR	daily rain	10.8 mm (0.4 in)	10.8 mm (0.4 in)	57 years	20 of 100 (Routine)
4 August 1970	Iguatu, BR	daily rain	18.0 mm (0.7 in)	11.5 mm (0.5 in)	5 years	20 of 100 (Routine)
14 March 1970	Iguatu, BR	daily rain	80.0 mm (3.1 in)	9.0 mm (0.35 in)	9 years	11 of 100 (Routine)
19 January 1970	Iguatu, BR	monthly rain	148.0 mm (5.8 in)	39.2 mm (1.5 in)	5 years	38 of 100 (Notable)
27 September 1969	Iguatu, BR	daily rain	6.4 mm (0.25 in)	1.8 mm (0.07 in)	36 years	18 of 100 (Routine)
25 September 1969	Iguatu, BR	daily rain	16.4 mm (0.6 in)	3.8 mm (0.15 in)	44 years	20 of 100 (Routine)
23 September 1969	Iguatu, BR	daily rain	2.9 mm (0.11 in)	2.3 mm (0.09 in)	56 years	20 of 100 (Routine)
31 August 1969	Iguatu, BR	daily rain	0.5 mm (0.02 in)	0.5 mm (0.02 in)	56 years	20 of 100 (Routine)
23 July 1969	Iguatu, BR	daily rain	6.2 mm (0.24 in)	4.2 mm (0.17 in)	50 years	20 of 100 (Routine)
12 June 1969	Iguatu, BR	daily rain	37.0 mm (1.5 in)	1.0 mm (0.04 in)	47 years	19 of 100 (Routine)
8 June 1969	Iguatu, BR	daily rain	16.8 mm (0.7 in)	0.8 mm (0.03 in)	56 years	20 of 100 (Routine)
6 April 1969	Iguatu, BR	daily rain	61.0 mm (2.4 in)	11.0 mm (0.4 in)	23 years	17 of 100 (Routine)
25 March 1969	Iguatu, BR	daily rain	83.6 mm (3.3 in)	35.3 mm (1.4 in)	48 years	38 of 100 (Notable)
17 March 1969	Iguatu, BR	daily rain	103.8 mm (4.1 in)	51.1 mm (2.0 in)	7 years	35 of 100 (Notable)
25 January 1969	Iguatu, BR	daily rain	86.6 mm (3.4 in)	31.1 mm (1.2 in)	10 years	26 of 100 (Routine)

Extremes by Year

1912 to 2001

Yearly extremes at Iguatu: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	36.2 C (97.2 F)	2001	34.0 C (93.2 F)	3
Coldest night (TNn)	19.7 C (67.5 F)	1993	22.8 C (73.0 F)	4
Wettest day (Rx1day)	153.6 mm (6.0 in)	1964	68.6 mm (2.7 in)	62
Wettest five days (Rx5day)	230.0 mm (9.1 in)	1970	131.6 mm (5.2 in)	59
Longest dry spell (CDD)	261 days	1942	99 days	62

Hottest day (TXx)

The hottest day of the year at Iguatu, 1912 to 2001. The record is 36.2 C (97.2 F) in 2001, marked on the chart; the median year is 34.0 C (93.2 F).

Hottest day (TXx) at Iguatu by year
Year	Hottest day (TXx)
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
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
1972	n/a
1983	n/a
1991	34.0 C (93.2 F)
1993	n/a
1995	31.8 C (89.2 F)
2001	36.2 C (97.2 F)

Coldest night (TNn)

The coldest night of the year at Iguatu, 1912 to 2001. The record is 19.7 C (67.5 F) in 1993, marked on the chart; the median year is 22.8 C (73.0 F).

Coldest night (TNn) at Iguatu by year
Year	Coldest night (TNn)
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
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
1972	n/a
1983	n/a
1991	21.5 C (70.7 F)
1993	19.7 C (67.5 F)
1995	24.1 C (75.4 F)
2001	24.1 C (75.4 F)

Wettest day (Rx1day)

The wettest day of the year at Iguatu, 1912 to 2001. The record is 153.6 mm (6.0 in) in 1964, marked on the chart; the median year is 68.6 mm (2.7 in).

Wettest day (Rx1day) at Iguatu by year
Year	Wettest day (Rx1day)
1912	76.0 mm (3.0 in)
1913	66.0 mm (2.6 in)
1914	70.3 mm (2.8 in)
1915	56.3 mm (2.2 in)
1916	97.0 mm (3.8 in)
1917	55.0 mm (2.2 in)
1918	75.3 mm (3.0 in)
1919	54.0 mm (2.1 in)
1920	66.0 mm (2.6 in)
1921	86.0 mm (3.4 in)
1922	47.0 mm (1.9 in)
1923	75.8 mm (3.0 in)
1924	54.0 mm (2.1 in)
1927	56.2 mm (2.2 in)
1928	67.6 mm (2.7 in)
1929	63.0 mm (2.5 in)
1930	70.5 mm (2.8 in)
1931	37.4 mm (1.5 in)
1932	63.4 mm (2.5 in)
1933	58.1 mm (2.3 in)
1934	67.9 mm (2.7 in)
1935	54.0 mm (2.1 in)
1936	81.0 mm (3.2 in)
1937	72.0 mm (2.8 in)
1938	79.0 mm (3.1 in)
1939	90.0 mm (3.5 in)
1940	88.0 mm (3.5 in)
1941	54.0 mm (2.1 in)
1942	55.4 mm (2.2 in)
1943	66.3 mm (2.6 in)
1944	83.0 mm (3.3 in)
1945	78.3 mm (3.1 in)
1946	75.2 mm (3.0 in)
1947	100.0 mm (3.9 in)
1948	65.1 mm (2.6 in)
1949	124.0 mm (4.9 in)
1950	120.0 mm (4.7 in)
1951	94.0 mm (3.7 in)
1952	88.0 mm (3.5 in)
1953	67.0 mm (2.6 in)
1954	88.0 mm (3.5 in)
1955	69.0 mm (2.7 in)
1956	80.0 mm (3.1 in)
1957	67.0 mm (2.6 in)
1958	80.0 mm (3.1 in)
1959	57.0 mm (2.2 in)
1960	71.0 mm (2.8 in)
1961	44.0 mm (1.7 in)
1962	62.6 mm (2.5 in)
1963	68.2 mm (2.7 in)
1964	153.6 mm (6.0 in)
1965	108.8 mm (4.3 in)
1966	145.6 mm (5.7 in)
1967	64.0 mm (2.5 in)
1968	63.0 mm (2.5 in)
1969	103.8 mm (4.1 in)
1970	148.0 mm (5.8 in)
1972	72.0 mm (2.8 in)
1983	19.6 mm (0.8 in)
1991	0.0 mm (0.00 in)
1993	0.0 mm (0.00 in)
1995	4.1 mm (0.16 in)
2001	n/a

Wettest five days (Rx5day)

The wettest five days of the year at Iguatu, 1912 to 2001. The record is 230.0 mm (9.1 in) in 1970, marked on the chart; the median year is 131.6 mm (5.2 in).

Wettest five days (Rx5day) at Iguatu by year
Year	Wettest five days (Rx5day)
1912	164.6 mm (6.5 in)
1913	98.6 mm (3.9 in)
1914	118.5 mm (4.7 in)
1915	58.8 mm (2.3 in)
1916	160.5 mm (6.3 in)
1917	151.0 mm (5.9 in)
1918	111.8 mm (4.4 in)
1919	62.0 mm (2.4 in)
1920	175.5 mm (6.9 in)
1921	164.0 mm (6.5 in)
1922	135.7 mm (5.3 in)
1923	186.8 mm (7.4 in)
1924	119.3 mm (4.7 in)
1927	170.5 mm (6.7 in)
1928	98.8 mm (3.9 in)
1929	136.8 mm (5.4 in)
1930	122.0 mm (4.8 in)
1931	74.4 mm (2.9 in)
1932	123.4 mm (4.9 in)
1933	70.2 mm (2.8 in)
1934	129.0 mm (5.1 in)
1935	111.2 mm (4.4 in)
1936	167.0 mm (6.6 in)
1937	104.5 mm (4.1 in)
1938	155.0 mm (6.1 in)
1939	147.5 mm (5.8 in)
1940	181.0 mm (7.1 in)
1941	156.8 mm (6.2 in)
1942	103.8 mm (4.1 in)
1943	108.9 mm (4.3 in)
1944	154.2 mm (6.1 in)
1945	78.6 mm (3.1 in)
1946	139.4 mm (5.5 in)
1947	130.0 mm (5.1 in)
1948	132.9 mm (5.2 in)
1949	201.0 mm (7.9 in)
1950	185.6 mm (7.3 in)
1951	100.3 mm (3.9 in)
1952	91.4 mm (3.6 in)
1953	143.4 mm (5.6 in)
1954	184.5 mm (7.3 in)
1955	90.8 mm (3.6 in)
1956	167.4 mm (6.6 in)
1957	194.2 mm (7.6 in)
1958	87.9 mm (3.5 in)
1959	114.1 mm (4.5 in)
1960	174.3 mm (6.9 in)
1961	87.5 mm (3.4 in)
1962	171.9 mm (6.8 in)
1963	131.6 mm (5.2 in)
1964	226.8 mm (8.9 in)
1965	120.2 mm (4.7 in)
1966	177.8 mm (7.0 in)
1967	88.0 mm (3.5 in)
1968	112.0 mm (4.4 in)
1969	199.0 mm (7.8 in)
1970	230.0 mm (9.1 in)
1972	118.2 mm (4.7 in)
1983	23.8 mm (0.9 in)
1991	n/a
1993	n/a
1995	n/a
2001	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Iguatu, 1912 to 2001. The record is 261 days in 1942, marked on the chart; the median year is 99 days.

Longest dry spell (CDD) at Iguatu by year
Year	Longest dry spell (CDD)
1912	46 days
1913	34 days
1914	64 days
1915	91 days
1916	145 days
1917	88 days
1918	71 days
1919	94 days
1920	59 days
1921	63 days
1922	127 days
1923	136 days
1924	83 days
1927	62 days
1928	119 days
1929	183 days
1930	109 days
1931	42 days
1932	71 days
1933	192 days
1934	163 days
1935	218 days
1936	223 days
1937	243 days
1938	201 days
1939	66 days
1940	218 days
1941	244 days
1942	261 days
1943	125 days
1944	98 days
1945	69 days
1946	186 days
1947	94 days
1948	143 days
1949	82 days
1950	105 days
1951	164 days
1952	125 days
1953	105 days
1954	146 days
1955	79 days
1956	67 days
1957	175 days
1958	127 days
1959	149 days
1960	140 days
1961	233 days
1962	79 days
1963	125 days
1964	47 days
1965	50 days
1966	112 days
1967	100 days
1968	79 days
1969	64 days
1970	58 days
1972	7 days
1983	26 days
1991	1 day
1993	1 day
1995	1 day
2001	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

56 years, 1912 to 1970

A day with at least 70.9 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 170.5 mm (6.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Iguatu: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	70.9 mm (2.8 in)
5 years	91.6 mm (3.6 in)
10 years	107.4 mm (4.2 in)
25 years	130.2 mm (5.1 in)
50 years	149.3 mm (5.9 in)
100 years	170.5 mm (6.7 in)	Longer than the 56 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, 56 years of values from 1912 to 1970.

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: 153.6 mm (6.0 in) in 1964; 148.0 mm (5.8 in) in 1970; 145.6 mm (5.7 in) in 1966.

Download the Data

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