Ambur Threshold Days by Year (IN020010300)

4 fixed thresholds counted per year at Ambur (IN020010300): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ambur Thresholds

Ambur: days with 10 mm (0.39 in) or more of precipitation in 69 years, most in 1903 with 44.
Ambur: days with 25 mm (0.98 in) or more of precipitation in 69 years, most in 1903 with 22.
Ambur: days with 50 mm (1.97 in) or more of precipitation in 60 years, most in 1903 with 13.
Ambur: days with 100 mm (3.94 in) or more of precipitation in 11 years, most in 1903 with 2.
4 fixed thresholds have at least one qualifying day at Ambur.

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

69 years with a qualifying day

Days per year at Ambur with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 44 in 1903.

Days with 10 mm (0.39 in) or more of precipitation per year at Ambur
Year	Days	Decade average
1901	20	25.9
1902	27	25.9
1903	44	25.9
1904	27	25.9
1905	26	25.9
1906	32	25.9
1907	21	25.9
1908	12	25.9
1909	24	25.9
1910	22	19.9
1911	18	19.9
1912	17	19.9
1913	13	19.9
1914	16	19.9
1915	19	19.9
1916	25	19.9
1917	19	19.9
1918	21	19.9
1919	29	19.9
1920	25	24.2
1921	28	24.2
1922	27	24.2
1923	15	24.2
1924	22	24.2
1925	32	24.2
1926	23	24.2
1927	22	24.2
1928	24	24.2
1929	24	24.2
1930	25	24.8
1931	28	24.8
1932	28	24.8
1933	21	24.8
1934	24	24.8
1935	22	24.8
1936	24	24.8
1937	31	24.8
1938	17	24.8
1939	28	24.8
1940	37	25.8
1941	24	25.8
1942	20	25.8
1943	35	25.8
1944	26	25.8
1945	18	25.8
1946	30	25.8
1947	20	25.8
1948	23	25.8
1949	25	25.8
1950	17	21.7
1951	24	21.7
1952	19	21.7
1953	27	21.7
1954	21	21.7
1955	24	21.7
1956	25	21.7
1957	21	21.7
1958	21	21.7
1959	18	21.7
1960	33	24.3
1961	18	24.3
1962	24	24.3
1963	29	24.3
1964	17	24.3
1966	33	24.3
1967	18	24.3
1968	15	24.3
1969	32	24.3
1970	24	24

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

First to last qualifying date each year at Ambur
Year	First date	Last date
1901	1901-04-22	1901-12-11
1902	1902-01-06	1902-12-16
1903	1903-01-06	1903-12-31
1904	1904-04-09	1904-10-24
1905	1905-05-18	1905-11-26
1906	1906-01-17	1906-12-28
1907	1907-03-28	1907-11-18
1908	1908-05-06	1908-10-27
1909	1909-01-01	1909-10-17
1910	1910-05-21	1910-11-06
1911	1911-04-16	1911-12-26
1912	1912-05-03	1912-11-21
1913	1913-05-22	1913-12-03
1914	1914-04-09	1914-12-06
1915	1915-01-16	1915-12-26
1916	1916-06-15	1916-12-04
1917	1917-05-02	1917-11-29
1918	1918-01-02	1918-11-26
1919	1919-01-06	1919-12-30
1920	1920-01-02	1920-11-26
1921	1921-01-13	1921-11-02
1922	1922-05-15	1922-11-30
1923	1923-01-11	1923-12-04
1924	1924-04-01	1924-11-28
1925	1925-04-17	1925-12-11
1926	1926-01-26	1926-11-07
1927	1927-04-26	1927-11-16
1928	1928-04-02	1928-11-12
1929	1929-01-08	1929-12-06
1930	1930-01-08	1930-12-01
1931	1931-06-01	1931-12-25
1932	1932-05-18	1932-11-26
1933	1933-03-12	1933-12-18
1934	1934-01-10	1934-11-28
1935	1935-04-02	1935-12-25
1936	1936-02-24	1936-12-19
1937	1937-03-21	1937-12-11
1938	1938-05-10	1938-10-29
1939	1939-01-11	1939-11-18
1940	1940-03-12	1940-12-04
1941	1941-05-02	1941-12-14
1942	1942-04-08	1942-12-23
1943	1943-01-03	1943-11-22
1944	1944-03-05	1944-12-13
1945	1945-05-01	1945-11-14
1946	1946-01-20	1946-12-09
1947	1947-04-20	1947-12-15
1948	1948-01-18	1948-11-21
1949	1949-04-03	1949-10-23
1950	1950-05-04	1950-11-10
1951	1951-03-30	1951-11-22
1952	1952-04-26	1952-12-12
1953	1953-04-05	1953-11-27
1954	1954-01-06	1954-12-15
1955	1955-01-09	1955-11-30
1956	1956-01-29	1956-12-03
1957	1957-03-15	1957-11-08
1958	1958-01-03	1958-12-05
1959	1959-02-03	1959-12-01
1960	1960-04-05	1960-11-22
1961	1961-05-31	1961-11-30
1962	1962-05-10	1962-12-03
1963	1963-04-25	1963-12-03
1964	1964-07-15	1964-12-23
1966	1966-01-31	1966-12-21
1967	1967-01-11	1967-11-04
1968	1968-04-25	1968-12-19
1969	1969-05-17	1969-12-17
1970	1970-05-09	1970-11-22

Every Fixed Threshold

Fixed thresholds at Ambur
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	69	44	1903	24
25 mm (0.98 in): Days with 25 mm or more rain	69	22	1903	12
50 mm (1.97 in): Days with 50 mm or more rain	60	13	1903	5
100 mm (3.94 in): Days with 100 mm or more rain	11	2	1903	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1901.

Download the Data

Data for Ambur 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).

Ambur Threshold Days by Year (IN020010300)

Key Facts for Ambur Thresholds

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

Every Fixed Threshold

Download the Data

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