Atalaia Threshold Days by Year (BR038970980)

5 fixed thresholds counted per year at Atalaia (BR038970980): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Atalaia Thresholds

Atalaia: days with 10 mm (0.39 in) or more of precipitation in 70 years, most in 1914 with 91.
Atalaia: days with 25 mm (0.98 in) or more of precipitation in 69 years, most in 1914 with 25.
Atalaia: days with 50 mm (1.97 in) or more of precipitation in 55 years, most in 1951 with 10.
Atalaia: days with 100 mm (3.94 in) or more of precipitation in 6 years, most in 1949 with 4.
5 fixed thresholds have at least one qualifying day at Atalaia.

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

70 years with a qualifying day

Days per year at Atalaia with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 91 in 1914.

Days with 10 mm (0.39 in) or more of precipitation per year at Atalaia
Year	Days	Decade average
1913	31	47.3
1914	91	47.3
1915	21	47.3
1916	30	47.3
1917	48	47.3
1918	71	47.3
1919	39	47.3
1920	39	43.5
1921	63	43.5
1922	78	43.5
1923	65	43.5
1924	69	43.5
1925	23	43.5
1926	30	43.5
1927	29	43.5
1928	17	43.5
1929	22	43.5
1930	26	33.5
1931	34	33.5
1932	26	33.5
1933	46	33.5
1934	37	33.5
1935	45	33.5
1936	38	33.5
1937	22	33.5
1938	36	33.5
1939	25	33.5
1940	60	51
1941	46	51
1942	37	51
1943	48	51
1944	55	51
1945	49	51
1946	49	51
1947	51	51
1948	63	51
1949	52	51
1950	53	42.7
1951	54	42.7
1952	34	42.7
1953	43	42.7
1954	42	42.7
1955	50	42.7
1956	32	42.7
1957	49	42.7
1958	35	42.7
1959	35	42.7
1960	38	48.4
1961	64	48.4
1962	53	48.4
1963	48	48.4
1964	60	48.4
1965	36	48.4
1966	52	48.4
1967	36	48.4
1968	43	48.4
1969	54	48.4
1970	36	56.1
1971	41	56.1
1972	43	56.1
1973	45	56.1
1974	71	56.1
1975	77	56.1
1976	46	56.1
1977	68	56.1
1978	70	56.1
1979	64	56.1
1980	43	49
1981	42	49
1982	62	49

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

First to last qualifying date each year at Atalaia
Year	First date	Last date
1913	1913-02-06	1913-12-03
1914	1914-01-17	1914-10-28
1915	1915-01-21	1915-12-20
1916	1916-02-04	1916-12-08
1917	1917-02-24	1917-12-14
1918	1918-01-02	1918-12-31
1919	1919-01-01	1919-12-28
1920	1920-01-30	1920-12-31
1921	1921-01-03	1921-12-23
1922	1922-01-01	1922-12-01
1923	1923-01-01	1923-12-04
1924	1924-01-24	1924-09-19
1925	1925-01-28	1925-09-03
1926	1926-02-07	1926-09-25
1927	1927-01-15	1927-08-31
1928	1928-03-24	1928-12-02
1929	1929-02-05	1929-09-09
1930	1930-01-02	1930-12-23
1931	1931-02-10	1931-12-25
1932	1932-01-15	1932-09-28
1933	1933-01-18	1933-10-29
1934	1934-02-24	1934-12-19
1935	1935-01-03	1935-11-18
1936	1936-02-10	1936-08-04
1937	1937-02-16	1937-08-30
1938	1938-01-08	1938-11-22
1939	1939-01-29	1939-10-30
1940	1940-01-02	1940-12-15
1941	1941-02-09	1941-12-23
1942	1942-01-26	1942-09-05
1943	1943-01-11	1943-11-09
1944	1944-01-20	1944-12-25
1945	1945-02-17	1945-12-04
1946	1946-01-13	1946-12-21
1947	1947-01-27	1947-12-21
1948	1948-01-14	1948-12-10
1949	1949-04-16	1949-11-30
1950	1950-02-28	1950-12-22
1951	1951-01-04	1951-12-14
1952	1952-02-16	1952-12-09
1953	1953-01-21	1953-12-04
1954	1954-02-01	1954-10-01
1955	1955-01-02	1955-10-31
1956	1956-01-23	1956-10-26
1957	1957-01-06	1957-12-27
1958	1958-03-11	1958-12-26
1959	1959-02-05	1959-11-07
1960	1960-01-02	1960-12-26
1961	1961-01-17	1961-12-13
1962	1962-02-27	1962-12-29
1963	1963-01-21	1963-12-28
1964	1964-01-25	1964-12-18
1965	1965-01-10	1965-12-04
1966	1966-01-16	1966-11-26
1967	1967-03-06	1967-10-11
1968	1968-01-24	1968-09-09
1969	1969-02-11	1969-11-22
1970	1970-01-19	1970-09-09
1971	1971-01-13	1971-12-26
1972	1972-01-20	1972-11-05
1973	1973-01-03	1973-11-25
1974	1974-01-20	1974-11-21
1975	1975-01-27	1975-12-18
1976	1976-02-02	1976-11-29
1977	1977-01-08	1977-10-18
1978	1978-02-20	1978-12-05
1979	1979-01-16	1979-11-15
1980	1980-01-06	1980-12-21
1981	1981-01-19	1981-12-24
1982	1982-01-11	1982-12-27

Every Fixed Threshold

Fixed thresholds at Atalaia
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	91	1914	62
25 mm (0.98 in): Days with 25 mm or more rain	69	25	1914	16
50 mm (1.97 in): Days with 50 mm or more rain	55	10	1951	1
100 mm (3.94 in): Days with 100 mm or more rain	6	4	1949	1
200 mm (7.87 in): Days with 200 mm or more rain	1	3	1949	3

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1913.

Download the Data

Data for Atalaia 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).

Atalaia Threshold Days by Year (BR038970980)

Key Facts for Atalaia Thresholds

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

Every Fixed Threshold

Download the Data

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