Indigo Threshold Days by Year

4 fixed thresholds counted per year at Indigo (ASN00082021): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Indigo Thresholds

Indigo: days with 10 mm (0.39 in) or more of precipitation in 117 years, most in 1939 with 34.
Indigo: days with 25 mm (0.98 in) or more of precipitation in 112 years, most in 1939 with 13.
Indigo: days with 50 mm (1.97 in) or more of precipitation in 39 years, most in 1939 with 4.
Indigo: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 2011 with 1.
4 fixed thresholds have at least one qualifying day at Indigo.

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

117 years with a qualifying day

Days per year at Indigo with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 1939.

Days with 10 mm (0.39 in) or more of precipitation per year at Indigo
Year	Days	Decade average
1903	18	17.7
1904	21	17.7
1905	18	17.7
1906	22	17.7
1907	10	17.7
1908	16	17.7
1909	19	17.7
1910	19	17.9
1911	19	17.9
1912	20	17.9
1913	15	17.9
1914	14	17.9
1915	13	17.9
1916	28	17.9
1917	24	17.9
1918	16	17.9
1919	11	17.9
1920	14	16.1
1921	27	16.1
1922	9	16.1
1923	10	16.1
1924	27	16.1
1925	8	16.1
1926	18	16.1
1927	9	16.1
1928	24	16.1
1929	15	16.1
1930	19	22.2
1931	28	22.2
1932	23	22.2
1933	20	22.2
1934	28	22.2
1935	20	22.2
1936	21	22.2
1937	19	22.2
1938	10	22.2
1939	34	22.2
1940	9	16.9
1941	16	16.9
1942	21	16.9
1943	11	16.9
1944	10	16.9
1945	18	16.9
1946	27	16.9
1947	21	16.9
1948	17	16.9
1949	19	16.9
1950	22	21.7
1951	19	21.7
1952	28	21.7
1953	19	21.7
1954	21	21.7
1955	25	21.7
1956	34	21.7
1957	15	21.7
1958	20	21.7
1959	14	21.7
1960	26	21.3
1961	18	21.3
1962	23	21.3
1963	25	21.3
1964	21	21.3
1965	15	21.3
1966	22	21.3
1967	11	21.3
1968	24	21.3
1969	28	21.3
1970	20	19
1971	19	19
1972	9	19
1973	29	19
1975	25	19
1976	11	19
1977	16	19
1978	25	19
1979	17	19
1980	14	23.7
1981	26	23.7
1982	11	23.7
1983	28	23.7
1984	24	23.7
1985	26	23.7
1986	31	23.7
1987	21	23.7
1988	26	23.7
1989	30	23.7
1990	25	22.5
1991	16	22.5
1992	30	22.5
1993	25	22.5
1994	14	22.5
1995	31	22.5
1996	27	22.5
1997	13	22.5
1998	21	22.5
1999	23	22.5
2000	23	15.2
2001	10	15.2
2002	7	15.2
2003	24	15.2
2005	22	15.2
2006	5	15.2
2007	18	15.2
2008	16	15.2
2009	12	15.2
2010	34	21.8
2011	28	21.8
2012	22	21.8
2013	15	21.8
2019	10	21.8
2020	21	19.7
2021	23	19.7
2022	29	19.7
2023	22	19.7
2024	12	19.7
2025	15	19.7
2026	16	19.7

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

First to last qualifying date each year at Indigo
Year	First date	Last date
1903	1903-01-07	1903-12-28
1904	1904-01-02	1904-12-18
1905	1905-01-04	1905-12-31
1906	1906-03-01	1906-12-24
1907	1907-01-27	1907-12-28
1908	1908-02-01	1908-11-27
1909	1909-02-25	1909-09-10
1910	1910-01-15	1910-11-29
1911	1911-01-13	1911-12-12
1912	1912-03-10	1912-12-27
1913	1913-01-02	1913-10-28
1914	1914-01-27	1914-12-22
1915	1915-05-13	1915-12-14
1916	1916-01-28	1916-12-09
1917	1917-01-02	1917-11-22
1918	1918-01-11	1918-12-24
1919	1919-02-18	1919-12-28
1920	1920-06-01	1920-12-05
1921	1921-01-10	1921-12-23
1922	1922-01-13	1922-10-01
1923	1923-05-08	1923-12-27
1924	1924-01-06	1924-12-15
1925	1925-01-13	1925-09-13
1926	1926-03-21	1926-12-18
1927	1927-01-06	1927-10-26
1928	1928-01-19	1928-10-23
1929	1929-01-25	1929-12-28
1930	1930-04-24	1930-12-25
1931	1931-01-08	1931-11-16
1932	1932-03-07	1932-12-16
1933	1933-01-23	1933-12-15
1934	1934-01-06	1934-12-28
1935	1935-01-05	1935-12-25
1936	1936-01-04	1936-12-19
1937	1937-01-19	1937-12-04
1938	1938-02-05	1938-09-10
1939	1939-02-17	1939-11-16
1940	1940-04-04	1940-12-28
1941	1941-01-04	1941-11-05
1942	1942-01-20	1942-12-26
1943	1943-01-03	1943-11-18
1944	1944-03-10	1944-12-13
1945	1945-01-16	1945-12-28
1946	1946-01-18	1946-12-29
1947	1947-02-19	1947-12-21
1948	1948-02-16	1948-12-29
1949	1949-02-20	1949-12-20
1950	1950-02-04	1950-12-22
1951	1951-01-07	1951-10-25
1952	1952-03-22	1952-12-06
1953	1953-02-06	1953-11-07
1954	1954-01-29	1954-12-12
1955	1955-01-29	1955-12-21
1956	1956-01-20	1956-12-14
1957	1957-02-08	1957-12-31
1958	1958-03-08	1958-11-30
1959	1959-02-14	1959-11-01
1960	1960-01-09	1960-12-27
1961	1961-02-28	1961-12-16
1962	1962-01-11	1962-12-31
1963	1963-01-02	1963-11-07
1964	1964-03-01	1964-12-24
1965	1965-04-23	1965-12-07
1966	1966-01-30	1966-12-13
1967	1967-03-31	1967-10-14
1968	1968-01-11	1968-12-25
1969	1969-01-15	1969-12-02
1970	1970-01-02	1970-12-05
1971	1971-02-05	1971-12-31
1972	1972-01-12	1972-11-25
1973	1973-01-13	1973-12-31
1975	1975-01-26	1975-12-30
1976	1976-01-06	1976-12-16
1977	1977-01-15	1977-10-03
1978	1978-01-06	1978-12-27
1979	1979-04-01	1979-11-12
1980	1980-01-04	1980-12-14
1981	1981-01-29	1981-12-13
1982	1982-01-13	1982-09-30
1983	1983-02-23	1983-12-07
1984	1984-01-02	1984-10-04
1985	1985-03-19	1985-12-07
1986	1986-04-17	1986-12-17
1987	1987-01-05	1987-12-02
1988	1988-01-02	1988-12-26
1989	1989-03-11	1989-11-15
1990	1990-01-19	1990-10-22
1991	1991-01-01	1991-12-31
1992	1992-01-01	1992-12-25
1993	1993-01-18	1993-12-26
1994	1994-01-17	1994-12-24
1995	1995-01-06	1995-11-19
1996	1996-01-01	1996-12-07
1997	1997-01-28	1997-11-01
1998	1998-02-08	1998-11-12
1999	1999-01-23	1999-12-28
2000	2000-02-22	2000-11-12
2001	2001-01-04	2001-12-24
2002	2002-01-22	2002-09-17
2003	2003-02-28	2003-12-22
2005	2005-01-05	2005-12-03
2006	2006-03-16	2006-07-16
2007	2007-02-17	2007-12-22
2008	2008-01-19	2008-12-18
2009	2009-03-13	2009-11-29
2010	2010-01-02	2010-12-09
2011	2011-01-10	2011-12-26
2012	2012-01-08	2012-12-24
2013	2013-03-22	2013-12-24
2019	2019-03-30	2019-12-02
2020	2020-01-20	2020-12-17
2021	2021-01-26	2021-12-20
2022	2022-01-06	2022-11-02
2023	2023-01-01	2023-12-25
2024	2024-01-03	2024-12-05
2025	2025-02-11	2025-12-22
2026	2026-01-16	2026-07-12

Every Fixed Threshold

Fixed thresholds at Indigo
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	117	34	1939	16
25 mm (0.98 in): Days with 25 mm or more rain	112	13	1939	4
50 mm (1.97 in): Days with 50 mm or more rain	39	4	1939	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	2011	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1903.

Download the Data

Data for Indigo 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 2026-10-13 (13 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Indigo Threshold Days by Year

Key Facts for Indigo Thresholds

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

Every Fixed Threshold

Download the Data

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