Cheyyar Threshold Days by Year

5 fixed thresholds counted per year at Cheyyar (IN020011800): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cheyyar Thresholds

Cheyyar: days with 10 mm (0.39 in) or more of precipitation in 69 years, most in 1955 with 44.
Cheyyar: days with 25 mm (0.98 in) or more of precipitation in 69 years, most in 1955 with 22.
Cheyyar: days with 50 mm (1.97 in) or more of precipitation in 68 years, most in 1955 with 11.
Cheyyar: days with 100 mm (3.94 in) or more of precipitation in 28 years, most in 1943 with 4.
5 fixed thresholds have at least one qualifying day at Cheyyar.

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

69 years with a qualifying day

Days per year at Cheyyar with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 44 in 1955.

Days with 10 mm (0.39 in) or more of precipitation per year at Cheyyar
Year	Days	Decade average
1901	35	31
1902	28	31
1903	41	31
1904	27	31
1905	29	31
1906	30	31
1907	35	31
1908	26	31
1909	28	31
1910	30	28.6
1911	27	28.6
1912	29	28.6
1913	28	28.6
1914	35	28.6
1915	22	28.6
1916	29	28.6
1917	23	28.6
1918	23	28.6
1919	40	28.6
1920	26	27.9
1921	26	27.9
1922	31	27.9
1923	20	27.9
1924	20	27.9
1925	37	27.9
1926	23	27.9
1927	32	27.9
1928	35	27.9
1929	29	27.9
1930	40	28.7
1931	40	28.7
1932	33	28.7
1933	22	28.7
1934	23	28.7
1935	27	28.7
1936	27	28.7
1937	31	28.7
1938	22	28.7
1939	22	28.7
1940	30	28.3
1941	28	28.3
1942	27	28.3
1943	29	28.3
1944	37	28.3
1945	18	28.3
1946	39	28.3
1947	22	28.3
1948	28	28.3
1949	25	28.3
1950	19	28
1951	21	28
1952	26	28
1953	25	28
1954	29	28
1955	44	28
1956	41	28
1957	25	28
1958	22	28
1959	28	28
1960	41	33.6
1961	42	33.6
1962	34	33.6
1964	34	33.6
1965	23	33.6
1966	40	33.6
1967	33	33.6
1968	25	33.6
1969	30	33.6
1970	30	30

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

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

Every Fixed Threshold

Fixed thresholds at Cheyyar
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	1955	30
25 mm (0.98 in): Days with 25 mm or more rain	69	22	1955	14
50 mm (1.97 in): Days with 50 mm or more rain	68	11	1955	5
100 mm (3.94 in): Days with 100 mm or more rain	28	4	1943	2
200 mm (7.87 in): Days with 200 mm or more rain	4	1	1915	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 Cheyyar 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).

Cheyyar Threshold Days by Year

Key Facts for Cheyyar Thresholds

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

Every Fixed Threshold

Download the Data

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