Tirukoilur Threshold Days by Year

5 fixed thresholds counted per year at Tirukoilur (IN020021200): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tirukoilur Thresholds

Tirukoilur: days with 10 mm (0.39 in) or more of precipitation in 70 years, most in 1963 with 47.
Tirukoilur: days with 25 mm (0.98 in) or more of precipitation in 70 years, most in 1901 with 25.
Tirukoilur: days with 50 mm (1.97 in) or more of precipitation in 69 years, most in 1966 with 11.
Tirukoilur: days with 100 mm (3.94 in) or more of precipitation in 28 years, most in 1937 with 4.
5 fixed thresholds have at least one qualifying day at Tirukoilur.

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

70 years with a qualifying day

Days per year at Tirukoilur with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 47 in 1963.

Days with 10 mm (0.39 in) or more of precipitation per year at Tirukoilur
Year	Days	Decade average
1901	34	30.7
1902	39	30.7
1903	29	30.7
1904	21	30.7
1905	38	30.7
1906	27	30.7
1907	34	30.7
1908	25	30.7
1909	29	30.7
1910	28	28.6
1911	23	28.6
1912	21	28.6
1913	26	28.6
1914	44	28.6
1915	28	28.6
1916	28	28.6
1917	29	28.6
1918	26	28.6
1919	33	28.6
1920	39	29.8
1921	24	29.8
1922	34	29.8
1923	31	29.8
1924	25	29.8
1925	31	29.8
1926	23	29.8
1927	28	29.8
1928	32	29.8
1929	31	29.8
1930	39	28.8
1931	32	28.8
1932	37	28.8
1933	26	28.8
1934	24	28.8
1935	26	28.8
1936	24	28.8
1937	26	28.8
1938	24	28.8
1939	30	28.8
1940	30	28.6
1941	24	28.6
1942	29	28.6
1943	34	28.6
1944	34	28.6
1945	24	28.6
1946	31	28.6
1947	31	28.6
1948	23	28.6
1949	26	28.6
1950	26	26.9
1951	32	26.9
1952	19	26.9
1953	28	26.9
1954	33	26.9
1955	34	26.9
1956	36	26.9
1957	16	26.9
1958	16	26.9
1959	29	26.9
1960	35	33.2
1961	40	33.2
1962	27	33.2
1963	47	33.2
1964	27	33.2
1965	32	33.2
1966	42	33.2
1967	29	33.2
1968	25	33.2
1969	28	33.2
1970	27	27

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

First to last qualifying date each year at Tirukoilur
Year	First date	Last date
1901	1901-02-14	1901-12-11
1902	1902-01-05	1902-12-08
1903	1903-01-05	1903-12-31
1904	1904-01-01	1904-12-19
1905	1905-01-08	1905-11-25
1906	1906-01-17	1906-12-27
1907	1907-04-12	1907-12-20
1908	1908-02-24	1908-12-31
1909	1909-01-01	1909-11-28
1910	1910-05-13	1910-11-14
1911	1911-05-21	1911-12-14
1912	1912-05-03	1912-12-14
1913	1913-05-22	1913-12-08
1914	1914-04-03	1914-12-07
1915	1915-01-15	1915-12-28
1916	1916-05-07	1916-12-03
1917	1917-01-31	1917-11-27
1918	1918-01-02	1918-12-04
1919	1919-04-23	1919-12-31
1920	1920-01-01	1920-11-28
1921	1921-01-12	1921-12-29
1922	1922-01-09	1922-12-02
1923	1923-01-11	1923-12-22
1924	1924-03-30	1924-11-27
1925	1925-01-13	1925-12-28
1926	1926-01-28	1926-12-31
1927	1927-05-19	1927-12-07
1928	1928-02-06	1928-12-28
1929	1929-01-09	1929-12-22
1930	1930-01-08	1930-12-26
1931	1931-04-14	1931-12-27
1932	1932-04-13	1932-12-05
1933	1933-03-12	1933-12-17
1934	1934-01-25	1934-12-13
1935	1935-01-08	1935-12-27
1936	1936-04-01	1936-12-19
1937	1937-03-14	1937-11-16
1938	1938-02-09	1938-12-07
1939	1939-04-13	1939-12-13
1940	1940-03-11	1940-12-04
1941	1941-01-07	1941-12-15
1942	1942-04-25	1942-12-21
1943	1943-01-03	1943-12-22
1944	1944-01-11	1944-12-22
1945	1945-03-31	1945-11-18
1946	1946-01-21	1946-12-17
1947	1947-01-01	1947-11-19
1948	1948-01-17	1948-12-21
1949	1949-05-13	1949-11-20
1950	1950-02-19	1950-12-14
1951	1951-03-31	1951-11-29
1952	1952-02-25	1952-12-13
1953	1953-01-09	1953-12-27
1954	1954-01-06	1954-12-12
1955	1955-01-09	1955-12-02
1956	1956-01-30	1956-12-27
1957	1957-06-03	1957-12-21
1958	1958-06-03	1958-12-30
1959	1959-05-19	1959-12-01
1960	1960-03-02	1960-12-11
1961	1961-01-05	1961-11-14
1962	1962-05-16	1962-12-02
1963	1963-01-09	1963-12-08
1964	1964-05-23	1964-12-24
1965	1965-04-01	1965-12-11
1966	1966-01-03	1966-12-21
1967	1967-01-11	1967-12-13
1968	1968-04-20	1968-12-18
1969	1969-02-09	1969-12-30
1970	1970-04-16	1970-11-23

Every Fixed Threshold

Fixed thresholds at Tirukoilur
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	47	1963	27
25 mm (0.98 in): Days with 25 mm or more rain	70	25	1901	14
50 mm (1.97 in): Days with 50 mm or more rain	69	11	1966	5
100 mm (3.94 in): Days with 100 mm or more rain	28	4	1937	2
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1903	1

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 Tirukoilur 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Tirukoilur Threshold Days by Year

Key Facts for Tirukoilur Thresholds

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

Every Fixed Threshold

Download the Data

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