Araruna Threshold Days by Year (BR038380550)

4 fixed thresholds counted per year at Araruna (BR038380550): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Araruna Thresholds

Araruna: days with 10 mm (0.39 in) or more of precipitation in 68 years, most in 1977 with 62.
Araruna: days with 25 mm (0.98 in) or more of precipitation in 68 years, most in 1977 with 32.
Araruna: days with 50 mm (1.97 in) or more of precipitation in 50 years, most in 1974 with 8.
Araruna: days with 100 mm (3.94 in) or more of precipitation in 11 years, most in 1917 with 3.
4 fixed thresholds have at least one qualifying day at Araruna.

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

68 years with a qualifying day

Days per year at Araruna with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 62 in 1977.

Days with 10 mm (0.39 in) or more of precipitation per year at Araruna
Year	Days	Decade average
1911	18	25.3
1912	2	25.3
1913	34	25.3
1914	47	25.3
1915	18	25.3
1916	23	25.3
1917	36	25.3
1918	24	25.3
1919	26	25.3
1920	24	28.7
1921	23	28.7
1922	27	28.7
1923	21	28.7
1924	55	28.7
1925	22	28.7
1931	21	21
1932	19	21
1933	12	21
1934	17	21
1935	33	21
1936	23	21
1937	26	21
1938	15	21
1939	23	21
1940	39	28.2
1941	28	28.2
1942	23	28.2
1943	28	28.2
1944	24	28.2
1945	25	28.2
1946	28	28.2
1947	30	28.2
1948	33	28.2
1949	24	28.2
1950	23	22.5
1951	22	22.5
1952	16	22.5
1953	23	22.5
1954	23	22.5
1955	19	22.5
1956	30	22.5
1957	19	22.5
1958	21	22.5
1959	29	22.5
1960	31	33.3
1961	38	33.3
1962	27	33.3
1963	25	33.3
1964	53	33.3
1965	35	33.3
1966	33	33.3
1967	43	33.3
1968	21	33.3
1969	27	33.3
1970	23	31.3
1971	31	31.3
1972	21	31.3
1973	34	31.3
1974	34	31.3
1975	19	31.3
1976	23	31.3
1977	62	31.3
1978	40	31.3
1979	26	31.3
1980	19	22
1981	29	22
1982	23	22
1983	17	22

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

First to last qualifying date each year at Araruna
Year	First date	Last date
1911	1911-03-05	1911-08-13
1912	1912-09-04	1912-11-07
1913	1913-02-07	1913-08-18
1914	1914-01-17	1914-09-17
1915	1915-01-26	1915-12-15
1916	1916-03-01	1916-07-26
1917	1917-01-14	1917-12-10
1918	1918-02-10	1918-09-24
1919	1919-01-01	1919-12-30
1920	1920-02-29	1920-12-31
1921	1921-01-01	1921-11-17
1922	1922-01-21	1922-11-28
1923	1923-01-15	1923-08-14
1924	1924-01-30	1924-11-22
1925	1925-01-28	1925-12-28
1931	1931-02-10	1931-09-14
1932	1932-01-13	1932-09-23
1933	1933-01-17	1933-12-26
1934	1934-02-09	1934-12-24
1935	1935-01-31	1935-11-27
1936	1936-02-10	1936-07-08
1937	1937-02-05	1937-08-18
1938	1938-01-07	1938-08-16
1939	1939-01-29	1939-11-24
1940	1940-01-30	1940-12-30
1941	1941-01-17	1941-12-12
1942	1942-02-01	1942-12-19
1943	1943-01-29	1943-12-17
1944	1944-01-20	1944-08-02
1945	1945-01-08	1945-12-01
1946	1946-01-02	1946-12-21
1947	1947-01-21	1947-11-22
1948	1948-01-26	1948-11-15
1949	1949-03-16	1949-11-27
1950	1950-01-13	1950-09-08
1951	1951-02-03	1951-12-14
1952	1952-01-04	1952-08-21
1953	1953-03-24	1953-11-28
1954	1954-02-17	1954-09-02
1955	1955-02-08	1955-12-04
1956	1956-01-07	1956-09-11
1957	1957-01-10	1957-12-11
1958	1958-03-27	1958-12-16
1959	1959-01-08	1959-11-07
1960	1960-01-07	1960-12-08
1961	1961-01-17	1961-08-25
1962	1962-02-16	1962-09-20
1963	1963-01-14	1963-12-30
1964	1964-01-04	1964-09-17
1965	1965-01-13	1965-12-28
1966	1966-01-24	1966-12-28
1967	1967-01-02	1967-12-30
1968	1968-01-16	1968-07-06
1969	1969-01-22	1969-09-06
1970	1970-01-22	1970-08-28
1971	1971-01-24	1971-12-15
1972	1972-02-18	1972-09-08
1973	1973-01-04	1973-11-25
1974	1974-01-17	1974-12-01
1975	1975-02-27	1975-12-03
1976	1976-01-18	1976-07-30
1977	1977-01-12	1977-12-28
1978	1978-01-13	1978-12-16
1979	1979-02-24	1979-11-15
1980	1980-03-02	1980-12-19
1981	1981-02-16	1981-12-22
1982	1982-01-10	1982-12-02
1983	1983-02-06	1983-08-30

Every Fixed Threshold

Fixed thresholds at Araruna
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	68	62	1977	17
25 mm (0.98 in): Days with 25 mm or more rain	68	32	1977	5
50 mm (1.97 in): Days with 50 mm or more rain	50	8	1974	1
100 mm (3.94 in): Days with 100 mm or more rain	11	3	1917	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1911.

Download the Data

Data for Araruna 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).

Araruna Threshold Days by Year (BR038380550)

Key Facts for Araruna Thresholds

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

Every Fixed Threshold

Download the Data

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