Iraucuba Threshold Days by Year (BR028704460)

4 fixed thresholds counted per year at Iraucuba (BR028704460): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Iraucuba Thresholds

Iraucuba: days with 10 mm (0.39 in) or more of precipitation in 70 years, most in 1921 with 37.
Iraucuba: days with 25 mm (0.98 in) or more of precipitation in 67 years, most in 1921 with 14.
Iraucuba: days with 50 mm (1.97 in) or more of precipitation in 36 years, most in 1912 with 4.
Iraucuba: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1941 with 1.
4 fixed thresholds have at least one qualifying day at Iraucuba.

Days with 10 mm (0.39 in) or more of precipitation

70 years with a qualifying day

Days per year at Iraucuba with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 37 in 1921.

Days with 10 mm (0.39 in) or more of precipitation per year at Iraucuba
Year	Days	Decade average
1912	28	18.1
1913	20	18.1
1914	17	18.1
1915	4	18.1
1916	23	18.1
1917	36	18.1
1918	12	18.1
1919	5	18.1
1920	23	22.2
1921	37	22.2
1922	9	22.2
1923	18	22.2
1924	36	22.2
1925	19	22.2
1926	27	22.2
1927	20	22.2
1928	11	22.2
1929	22	22.2
1930	16	15.3
1931	20	15.3
1932	4	15.3
1933	17	15.3
1934	29	15.3
1935	20	15.3
1936	5	15.3
1937	10	15.3
1938	16	15.3
1939	16	15.3
1940	19	16.1
1941	13	16.1
1942	9	16.1
1943	8	16.1
1944	17	16.1
1945	28	16.1
1947	20	16.1
1948	14	16.1
1949	17	16.1
1950	19	13
1952	8	13
1953	11	13
1954	15	13
1955	16	13
1956	13	13
1957	18	13
1958	1	13
1959	16	13
1960	13	19.8
1961	21	19.8
1962	15	19.8
1963	20	19.8
1964	34	19.8
1965	23	19.8
1966	11	19.8
1967	21	19.8
1968	23	19.8
1969	17	19.8
1970	11	17.3
1971	24	17.3
1972	9	17.3
1973	31	17.3
1974	27	17.3
1975	19	17.3
1976	13	17.3
1977	15	17.3
1978	12	17.3
1979	12	17.3
1980	11	9.8
1981	16	9.8
1982	8	9.8
1983	4	9.8

For each year, a bar from the first to the last day at Iraucuba meeting 10 mm (0.39 in).

First to last qualifying date each year at Iraucuba
Year	First date	Last date
1912	1912-01-09	1912-06-30
1913	1913-01-01	1913-12-10
1914	1914-01-20	1914-06-16
1915	1915-01-26	1915-12-14
1916	1916-01-22	1916-12-31
1917	1917-01-03	1917-07-06
1918	1918-01-05	1918-12-31
1919	1919-01-01	1919-05-05
1920	1920-03-05	1920-08-05
1921	1921-01-05	1921-07-17
1922	1922-03-28	1922-11-28
1923	1923-01-09	1923-07-10
1924	1924-01-09	1924-12-31
1925	1925-01-28	1925-06-10
1926	1926-02-11	1926-06-14
1927	1927-01-12	1927-05-30
1928	1928-01-07	1928-05-01
1929	1929-01-12	1929-12-07
1930	1930-01-21	1930-06-17
1931	1931-02-04	1931-05-30
1932	1932-01-31	1932-03-29
1933	1933-02-01	1933-04-20
1934	1934-01-03	1934-06-12
1935	1935-01-20	1935-06-24
1936	1936-01-01	1936-06-15
1937	1937-02-25	1937-06-17
1938	1938-01-29	1938-05-04
1939	1939-02-17	1939-05-10
1940	1940-01-04	1940-06-13
1941	1941-02-21	1941-06-15
1942	1942-02-10	1942-04-25
1943	1943-01-25	1943-12-20
1944	1944-01-18	1944-12-29
1945	1945-01-03	1945-07-01
1947	1947-01-19	1947-05-07
1948	1948-01-04	1948-12-21
1949	1949-02-08	1949-05-26
1950	1950-01-16	1950-12-04
1952	1952-02-11	1952-12-16
1953	1953-02-21	1953-06-07
1954	1954-02-09	1954-08-09
1955	1955-01-23	1955-05-24
1956	1956-02-13	1956-05-18
1957	1957-03-02	1957-06-20
1958	1958-07-05	1958-07-05
1959	1959-01-21	1959-05-22
1960	1960-03-07	1960-12-16
1961	1961-01-18	1961-06-05
1962	1962-01-29	1962-12-21
1963	1963-01-17	1963-05-05
1964	1964-01-03	1964-06-25
1965	1965-01-25	1965-06-18
1966	1966-02-06	1966-06-19
1967	1967-02-03	1967-12-29
1968	1968-02-26	1968-12-28
1969	1969-01-08	1969-08-04
1970	1970-01-22	1970-05-31
1971	1971-02-15	1971-07-25
1972	1972-01-22	1972-06-18
1973	1973-01-02	1973-12-31
1974	1974-02-23	1974-12-23
1975	1975-02-09	1975-09-07
1976	1976-02-10	1976-08-28
1977	1977-01-26	1977-07-17
1978	1978-02-12	1978-05-10
1979	1979-02-21	1979-06-15
1980	1980-02-19	1980-06-11
1981	1981-02-14	1981-12-21
1982	1982-01-26	1982-05-12
1983	1983-02-13	1983-04-24

Every Fixed Threshold

Fixed thresholds at Iraucuba
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	70	37	1921	4
25 mm (0.98 in): Days with 25 mm or more rain	67	14	1921	2
50 mm (1.97 in): Days with 50 mm or more rain	36	4	1912	2
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1941	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.

Download the Data

Data for Iraucuba 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). Threshold counts are computed by this site.

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

Iraucuba Threshold Days by Year (BR028704460)

Key Facts for Iraucuba Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

Related