Acude Sobral Threshold Days by Year (BR027793280)

4 fixed thresholds counted per year at Acude Sobral (BR027793280): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Acude Sobral Thresholds

Acude Sobral: days with 10 mm (0.39 in) or more of precipitation in 51 years, most in 1974 with 59.
Acude Sobral: days with 25 mm (0.98 in) or more of precipitation in 51 years, most in 1974 with 21.
Acude Sobral: days with 50 mm (1.97 in) or more of precipitation in 45 years, most in 1967 with 6.
Acude Sobral: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1965 with 1.
4 fixed thresholds have at least one qualifying day at Acude Sobral.

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

51 years with a qualifying day

Days per year at Acude Sobral 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 Acude Sobral
Year	Days	Decade average
1921	38	36.1
1922	31	36.1
1923	40	36.1
1924	42	36.1
1925	36	36.1
1926	53	36.1
1927	26	36.1
1928	23	36.1
1929	36	36.1
1931	27	27.2
1932	12	27.2
1933	27	27.2
1934	40	27.2
1935	38	27.2
1936	13	27.2
1937	28	27.2
1938	31	27.2
1939	29	27.2
1940	33	24.6
1941	22	24.6
1942	15	24.6
1943	21	24.6
1944	32	24.6
1950	32	24.4
1951	13	24.4
1952	25	24.4
1953	18	24.4
1954	21	24.4
1955	28	24.4
1956	25	24.4
1959	33	24.4
1960	16	31
1961	33	31
1962	23	31
1963	35	31
1964	46	31
1965	42	31
1966	16	31
1967	41	31
1968	40	31
1969	18	31
1970	15	30.1
1971	32	30.1
1972	21	30.1
1973	47	30.1
1974	59	30.1
1975	33	30.1
1976	26	30.1
1977	33	30.1
1978	15	30.1
1979	20	30.1

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

First to last qualifying date each year at Acude Sobral
Year	First date	Last date
1921	1921-01-19	1921-11-07
1922	1922-02-15	1922-11-29
1923	1923-01-09	1923-07-09
1924	1924-01-23	1924-06-28
1925	1925-01-19	1925-07-17
1926	1926-01-11	1926-11-30
1927	1927-01-22	1927-06-25
1928	1928-02-10	1928-05-24
1929	1929-01-05	1929-06-22
1931	1931-01-02	1931-05-31
1932	1932-01-19	1932-05-01
1933	1933-01-14	1933-12-30
1934	1934-01-05	1934-12-19
1935	1935-01-21	1935-06-19
1936	1936-01-01	1936-06-16
1937	1937-01-07	1937-09-28
1938	1938-01-11	1938-05-19
1939	1939-02-13	1939-10-21
1940	1940-01-04	1940-12-30
1941	1941-02-11	1941-07-01
1942	1942-01-10	1942-12-04
1943	1943-01-27	1943-12-21
1944	1944-01-22	1944-12-30
1950	1950-01-14	1950-05-24
1951	1951-01-08	1951-12-27
1952	1952-02-09	1952-12-16
1953	1953-02-22	1953-06-07
1954	1954-02-01	1954-06-15
1955	1955-01-23	1955-11-12
1956	1956-02-02	1956-06-28
1959	1959-01-20	1959-08-11
1960	1960-01-05	1960-05-12
1961	1961-02-01	1961-07-01
1962	1962-01-23	1962-05-08
1963	1963-01-23	1963-12-30
1964	1964-01-01	1964-07-07
1965	1965-01-12	1965-10-04
1966	1966-03-04	1966-06-17
1967	1967-01-02	1967-06-18
1968	1968-01-09	1968-07-07
1969	1969-01-21	1969-05-30
1970	1970-01-21	1970-11-09
1971	1971-01-21	1971-07-06
1972	1972-01-12	1972-06-18
1973	1973-01-11	1973-12-17
1974	1974-01-15	1974-12-22
1975	1975-01-21	1975-12-06
1976	1976-01-27	1976-08-23
1977	1977-01-05	1977-12-09
1978	1978-01-14	1978-11-29
1979	1979-01-16	1979-05-16

Every Fixed Threshold

Fixed thresholds at Acude Sobral
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	51	59	1974	20
25 mm (0.98 in): Days with 25 mm or more rain	51	21	1974	8
50 mm (1.97 in): Days with 50 mm or more rain	45	6	1967	2
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1965	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1921.

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Data for Acude Sobral 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).

Acude Sobral Threshold Days by Year (BR027793280)

Key Facts for Acude Sobral Thresholds

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

Every Fixed Threshold

Download the Data

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