Castelo Do Piaui (Marvao) Threshold Days by Year (BR037066890)

4 fixed thresholds counted per year at Castelo Do Piaui (Marvao) (BR037066890): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Castelo Do Piaui (Marvao) Thresholds

Castelo Do Piaui (Marvao): days with 10 mm (0.39 in) or more of precipitation in 65 years, most in 1974 with 59.
Castelo Do Piaui (Marvao): days with 25 mm (0.98 in) or more of precipitation in 65 years, most in 1957 with 31.
Castelo Do Piaui (Marvao): days with 50 mm (1.97 in) or more of precipitation in 64 years, most in 1935 with 14.
Castelo Do Piaui (Marvao): days with 100 mm (3.94 in) or more of precipitation in 8 years, most in 1915 with 1.
4 fixed thresholds have at least one qualifying day at Castelo Do Piaui (Marvao).

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

65 years with a qualifying day

Days per year at Castelo Do Piaui (Marvao) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 59 in 1974.

Days with 10 mm (0.39 in) or more of precipitation per year at Castelo Do Piaui (Marvao)
Year	Days	Decade average
1914	22	28.8
1915	16	28.8
1916	29	28.8
1917	54	28.8
1918	36	28.8
1919	16	28.8
1920	32	38.3
1921	47	38.3
1922	43	38.3
1923	29	38.3
1924	46	38.3
1926	41	38.3
1927	24	38.3
1929	44	38.3
1930	28	30.5
1931	29	30.5
1932	19	30.5
1933	27	30.5
1934	33	30.5
1935	48	30.5
1936	21	30.5
1937	39	30.5
1938	28	30.5
1939	33	30.5
1940	38	29.4
1941	20	29.4
1942	19	29.4
1943	20	29.4
1944	32	29.4
1945	34	29.4
1946	26	29.4
1947	40	29.4
1948	32	29.4
1949	33	29.4
1950	30	33.3
1951	25	33.3
1952	37	33.3
1953	41	33.3
1954	41	33.3
1955	21	33.3
1956	42	33.3
1957	46	33.3
1958	20	33.3
1959	30	33.3
1960	31	34
1961	32	34
1962	30	34
1963	38	34
1964	48	34
1965	34	34
1966	22	34
1967	45	34
1968	36	34
1969	24	34
1970	28	34.4
1971	37	34.4
1972	28	34.4
1974	59	34.4
1977	32	34.4
1978	29	34.4
1979	28	34.4
1980	32	21
1981	18	21
1982	19	21
1983	15	21

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

First to last qualifying date each year at Castelo Do Piaui (Marvao)
Year	First date	Last date
1914	1914-01-13	1914-12-26
1915	1915-01-16	1915-12-19
1916	1916-01-21	1916-12-31
1917	1917-01-02	1917-12-31
1918	1918-01-01	1918-12-31
1919	1919-01-05	1919-07-13
1920	1920-02-03	1920-12-30
1921	1921-01-01	1921-12-10
1922	1922-01-02	1922-11-29
1923	1923-01-06	1923-05-29
1924	1924-01-12	1924-12-31
1926	1926-01-05	1926-06-30
1927	1927-01-12	1927-12-10
1929	1929-01-11	1929-12-28
1930	1930-01-02	1930-12-28
1931	1931-01-06	1931-11-02
1932	1932-01-01	1932-09-27
1933	1933-01-15	1933-12-31
1934	1934-01-01	1934-12-23
1935	1935-01-01	1935-06-16
1936	1936-01-13	1936-11-30
1937	1937-01-07	1937-12-25
1938	1938-01-06	1938-12-30
1939	1939-01-04	1939-11-21
1940	1940-01-01	1940-12-24
1941	1941-01-05	1941-12-06
1942	1942-01-03	1942-12-04
1943	1943-01-30	1943-11-19
1944	1944-01-19	1944-12-24
1945	1945-01-08	1945-12-25
1946	1946-01-02	1946-12-19
1947	1947-01-21	1947-12-30
1948	1948-01-05	1948-12-21
1949	1949-01-09	1949-12-21
1950	1950-01-11	1950-12-24
1951	1951-01-12	1951-12-29
1952	1952-01-13	1952-12-24
1953	1953-01-06	1953-12-24
1954	1954-01-07	1954-11-28
1955	1955-01-17	1955-12-22
1956	1956-01-11	1956-12-23
1957	1957-01-03	1957-12-24
1958	1958-01-16	1958-12-26
1959	1959-01-06	1959-11-24
1960	1960-01-05	1960-12-23
1961	1961-01-02	1961-05-09
1962	1962-01-14	1962-12-25
1963	1963-01-16	1963-12-28
1964	1964-01-02	1964-08-04
1965	1965-01-13	1965-12-23
1966	1966-01-11	1966-12-31
1967	1967-01-02	1967-12-31
1968	1968-01-30	1968-12-22
1969	1969-01-08	1969-12-05
1970	1970-01-12	1970-12-26
1971	1971-01-12	1971-12-21
1972	1972-01-08	1972-12-30
1974	1974-01-03	1974-12-29
1977	1977-01-02	1977-12-31
1978	1978-01-08	1978-12-24
1979	1979-01-05	1979-12-29
1980	1980-01-04	1980-12-29
1981	1981-01-18	1981-12-28
1982	1982-01-14	1982-05-12
1983	1983-01-01	1983-12-27

Every Fixed Threshold

Fixed thresholds at Castelo Do Piaui (Marvao)
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	65	59	1974	15
25 mm (0.98 in): Days with 25 mm or more rain	65	31	1957	6
50 mm (1.97 in): Days with 50 mm or more rain	64	14	1935	4
100 mm (3.94 in): Days with 100 mm or more rain	8	1	1915	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1914.

Download the Data

Data for Castelo Do Piaui (Marvao) 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).

Castelo Do Piaui (Marvao) Threshold Days by Year (BR037066890)

Key Facts for Castelo Do Piaui (Marvao) Thresholds

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

Every Fixed Threshold

Download the Data

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