Piranhas Threshold Days by Year (BR000937023)

4 fixed thresholds counted per year at Piranhas (BR000937023): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Piranhas Thresholds

Piranhas: days with 10 mm (0.39 in) or more of precipitation in 59 years, most in 1974 with 27.
Piranhas: days with 25 mm (0.98 in) or more of precipitation in 54 years, most in 1974 with 12.
Piranhas: days with 50 mm (1.97 in) or more of precipitation in 30 years, most in 1974 with 4.
Piranhas: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1957 with 1.
4 fixed thresholds have at least one qualifying day at Piranhas.

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

59 years with a qualifying day

Days per year at Piranhas with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 1974.

Days with 10 mm (0.39 in) or more of precipitation per year at Piranhas
Year	Days	Decade average
1935	22	14
1936	12	14
1937	13	14
1938	9	14
1939	14	14
1940	14	13.4
1941	15	13.4
1942	9	13.4
1943	8	13.4
1944	17	13.4
1945	18	13.4
1946	7	13.4
1947	19	13.4
1948	13	13.4
1949	14	13.4
1950	9	9.4
1951	15	9.4
1952	5	9.4
1953	8	9.4
1954	12	9.4
1955	4	9.4
1956	10	9.4
1957	16	9.4
1958	10	9.4
1959	5	9.4
1960	22	15.6
1961	6	15.6
1962	12	15.6
1963	11	15.6
1964	19	15.6
1965	7	15.6
1966	20	15.6
1967	20	15.6
1968	16	15.6
1969	23	15.6
1970	9	13.2
1971	5	13.2
1972	15	13.2
1973	10	13.2
1974	27	13.2
1981	11	13.9
1982	7	13.9
1983	14	13.9
1984	15	13.9
1985	24	13.9
1986	10	13.9
1987	7	13.9
1988	19	13.9
1989	18	13.9
1990	10	11.2
1991	11	11.2
1992	16	11.2
1993	4	11.2
1994	15	11.2
1995	11	11.2
1996	13	11.2
1997	16	11.2
1998	6	11.2
1999	10	11.2

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

First to last qualifying date each year at Piranhas
Year	First date	Last date
1935	1935-01-01	1935-11-25
1936	1936-02-03	1936-07-10
1937	1937-01-31	1937-08-29
1938	1938-02-15	1938-08-30
1939	1939-01-19	1939-12-30
1940	1940-02-08	1940-12-25
1941	1941-02-10	1941-11-13
1942	1942-02-19	1942-12-27
1943	1943-02-17	1943-12-23
1944	1944-01-20	1944-12-28
1945	1945-03-27	1945-12-30
1946	1946-02-13	1946-07-30
1947	1947-01-22	1947-11-16
1948	1948-01-16	1948-12-08
1949	1949-04-12	1949-11-29
1950	1950-01-15	1950-11-16
1951	1951-02-06	1951-07-17
1952	1952-02-29	1952-05-24
1953	1953-02-17	1953-11-29
1954	1954-02-18	1954-12-07
1955	1955-02-12	1955-07-31
1956	1956-02-10	1956-11-19
1957	1957-01-08	1957-06-11
1958	1958-01-17	1958-10-30
1959	1959-06-24	1959-11-25
1960	1960-01-01	1960-07-29
1961	1961-01-24	1961-07-15
1962	1962-01-15	1962-11-26
1963	1963-01-31	1963-12-25
1964	1964-01-04	1964-08-03
1965	1965-01-19	1965-10-05
1966	1966-01-25	1966-11-30
1967	1967-02-19	1967-12-29
1968	1968-02-29	1968-12-23
1969	1969-01-19	1969-07-28
1970	1970-01-22	1970-10-24
1971	1971-04-28	1971-09-18
1972	1972-02-19	1972-12-22
1973	1973-03-12	1973-12-01
1974	1974-01-13	1974-12-04
1981	1981-03-15	1981-11-08
1982	1982-02-17	1982-09-23
1983	1983-01-21	1983-08-07
1984	1984-02-08	1984-09-08
1985	1985-01-04	1985-12-08
1986	1986-01-04	1986-07-10
1987	1987-03-31	1987-07-04
1988	1988-02-25	1988-12-17
1989	1989-03-06	1989-12-25
1990	1990-02-13	1990-08-26
1991	1991-01-24	1991-11-19
1992	1992-01-26	1992-12-15
1993	1993-01-19	1993-08-04
1994	1994-01-24	1994-12-21
1995	1995-02-17	1995-12-07
1996	1996-01-22	1996-11-18
1997	1997-01-19	1997-12-30
1998	1998-04-09	1998-12-02
1999	1999-02-08	1999-12-23

Every Fixed Threshold

Fixed thresholds at Piranhas
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	59	27	1974	10
25 mm (0.98 in): Days with 25 mm or more rain	54	12	1974	1
50 mm (1.97 in): Days with 50 mm or more rain	30	4	1974	1
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1957	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1935.

Download the Data

Data for Piranhas 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).

Piranhas Threshold Days by Year (BR000937023)

Key Facts for Piranhas Thresholds

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

Every Fixed Threshold

Download the Data

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