Sertania (Alagoa de Baixo) Threshold Days by Year (BR038651490)

4 fixed thresholds counted per year at Sertania (Alagoa de Baixo) (BR038651490): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sertania (Alagoa de Baixo) Thresholds

Sertania (Alagoa de Baixo): days with 10 mm (0.39 in) or more of precipitation in 64 years, most in 1924 with 40.
Sertania (Alagoa de Baixo): days with 25 mm (0.98 in) or more of precipitation in 64 years, most in 1924 with 17.
Sertania (Alagoa de Baixo): days with 50 mm (1.97 in) or more of precipitation in 45 years, most in 1926 with 5.
Sertania (Alagoa de Baixo): days with 100 mm (3.94 in) or more of precipitation in 5 years, most in 1950 with 1.
4 fixed thresholds have at least one qualifying day at Sertania (Alagoa de Baixo).

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

64 years with a qualifying day

Days per year at Sertania (Alagoa de Baixo) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 40 in 1924.

Days with 10 mm (0.39 in) or more of precipitation per year at Sertania (Alagoa de Baixo)
Year	Days	Decade average
1912	21	14.9
1913	18	14.9
1914	17	14.9
1915	10	14.9
1916	15	14.9
1917	16	14.9
1918	15	14.9
1919	7	14.9
1920	18	19.8
1922	22	19.8
1923	13	19.8
1924	40	19.8
1925	13	19.8
1926	28	19.8
1927	14	19.8
1928	13	19.8
1929	17	19.8
1930	6	10.6
1931	6	10.6
1932	5	10.6
1933	11	10.6
1934	18	10.6
1935	19	10.6
1939	9	10.6
1940	29	16.9
1941	13	16.9
1942	6	16.9
1943	7	16.9
1944	15	16.9
1945	16	16.9
1946	18	16.9
1947	28	16.9
1948	21	16.9
1949	16	16.9
1950	15	10.4
1951	9	10.4
1952	6	10.4
1953	8	10.4
1954	8	10.4
1955	11	10.4
1956	17	10.4
1957	12	10.4
1958	8	10.4
1963	24	22.9
1964	27	22.9
1965	29	22.9
1966	21	22.9
1967	27	22.9
1968	20	22.9
1969	12	22.9
1970	24	22
1971	21	22
1972	20	22
1973	18	22
1974	32	22
1975	25	22
1976	22	22
1977	18	22
1978	28	22
1979	12	22
1980	18	13
1981	11	13
1982	11	13
1983	12	13

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

First to last qualifying date each year at Sertania (Alagoa de Baixo)
Year	First date	Last date
1912	1912-01-04	1912-11-04
1913	1913-02-11	1913-12-09
1914	1914-01-14	1914-08-06
1915	1915-04-01	1915-12-15
1916	1916-02-10	1916-11-26
1917	1917-01-31	1917-11-18
1918	1918-01-05	1918-12-29
1919	1919-01-01	1919-09-02
1920	1920-03-05	1920-12-31
1922	1922-02-27	1922-11-30
1923	1923-02-07	1923-08-20
1924	1924-01-24	1924-11-20
1925	1925-01-28	1925-12-24
1926	1926-01-05	1926-12-04
1927	1927-02-07	1927-07-20
1928	1928-03-01	1928-12-02
1929	1929-01-11	1929-12-01
1930	1930-01-22	1930-10-28
1931	1931-01-11	1931-10-25
1932	1932-03-05	1932-09-07
1933	1933-01-18	1933-04-28
1934	1934-02-23	1934-12-22
1935	1935-01-31	1935-07-05
1939	1939-01-18	1939-10-28
1940	1940-01-04	1940-12-30
1941	1941-02-21	1941-12-04
1942	1942-02-02	1942-10-19
1943	1943-01-29	1943-12-14
1944	1944-01-21	1944-12-29
1945	1945-02-08	1945-12-03
1946	1946-01-11	1946-12-20
1947	1947-01-20	1947-12-21
1948	1948-01-26	1948-10-31
1949	1949-02-09	1949-11-28
1950	1950-01-14	1950-12-26
1951	1951-01-13	1951-12-15
1952	1952-02-12	1952-12-14
1953	1953-03-07	1953-11-26
1954	1954-02-01	1954-05-15
1955	1955-01-15	1955-10-13
1956	1956-01-05	1956-08-11
1957	1957-01-11	1957-08-07
1958	1958-02-20	1958-12-22
1963	1963-01-11	1963-12-27
1964	1964-01-07	1964-12-07
1965	1965-01-14	1965-12-28
1966	1966-01-31	1966-11-26
1967	1967-02-19	1967-12-29
1968	1968-01-24	1968-12-20
1969	1969-01-23	1969-12-17
1970	1970-01-12	1970-12-17
1971	1971-01-28	1971-09-18
1972	1972-01-19	1972-12-23
1973	1973-01-10	1973-12-23
1974	1974-01-20	1974-12-05
1975	1975-01-19	1975-09-25
1976	1976-01-20	1976-12-04
1977	1977-01-23	1977-12-26
1978	1978-02-04	1978-09-24
1979	1979-01-25	1979-09-06
1980	1980-01-05	1980-11-17
1981	1981-01-29	1981-12-22
1982	1982-01-28	1982-12-25
1983	1983-01-28	1983-07-10

Every Fixed Threshold

Fixed thresholds at Sertania (Alagoa de Baixo)
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	64	40	1924	12
25 mm (0.98 in): Days with 25 mm or more rain	64	17	1924	3
50 mm (1.97 in): Days with 50 mm or more rain	45	5	1926	2
100 mm (3.94 in): Days with 100 mm or more rain	5	1	1950	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 Sertania (Alagoa de Baixo) 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).

Sertania (Alagoa de Baixo) Threshold Days by Year (BR038651490)

Key Facts for Sertania (Alagoa de Baixo) Thresholds

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

Every Fixed Threshold

Download the Data

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