Chengam Threshold Days by Year (IN020010701)

5 fixed thresholds counted per year at Chengam (IN020010701): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chengam Thresholds

Chengam: days with 10 mm (0.39 in) or more of precipitation in 69 years, most in 1930 with 44.
Chengam: days with 25 mm (0.98 in) or more of precipitation in 69 years, most in 1930 with 27.
Chengam: days with 50 mm (1.97 in) or more of precipitation in 66 years, most in 1930 with 10.
Chengam: days with 100 mm (3.94 in) or more of precipitation in 10 years, most in 1909 with 2.
5 fixed thresholds have at least one qualifying day at Chengam.

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

69 years with a qualifying day

Days per year at Chengam with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 44 in 1930.

Days with 10 mm (0.39 in) or more of precipitation per year at Chengam
Year	Days	Decade average
1901	34	32.6
1902	34	32.6
1903	41	32.6
1904	24	32.6
1905	39	32.6
1906	32	32.6
1907	28	32.6
1908	27	32.6
1909	34	32.6
1910	31	31.8
1911	30	31.8
1912	27	31.8
1913	27	31.8
1914	33	31.8
1915	33	31.8
1916	38	31.8
1917	34	31.8
1918	27	31.8
1919	38	31.8
1920	34	29.1
1921	37	29.1
1922	36	29.1
1923	17	29.1
1924	30	29.1
1925	30	29.1
1926	22	29.1
1927	26	29.1
1928	35	29.1
1929	24	29.1
1930	44	30.9
1931	41	30.9
1932	31	30.9
1933	23	30.9
1934	26	30.9
1935	31	30.9
1936	34	30.9
1937	27	30.9
1938	27	30.9
1939	25	30.9
1940	39	30.3
1941	29	30.3
1942	31	30.3
1943	30	30.3
1944	27	30.3
1945	21	30.3
1946	36	30.3
1947	34	30.3
1948	28	30.3
1949	28	30.3
1950	12	27.1
1951	22	27.1
1952	19	27.1
1953	31	27.1
1954	32	27.1
1955	30	27.1
1956	39	27.1
1957	33	27.1
1958	24	27.1
1959	29	27.1
1960	42	33.4
1961	30	33.4
1962	37	33.4
1964	34	33.4
1965	35	33.4
1966	35	33.4
1967	30	33.4
1968	27	33.4
1969	31	33.4
1970	36	36

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

First to last qualifying date each year at Chengam
Year	First date	Last date
1901	1901-01-11	1901-12-11
1902	1902-01-06	1902-12-16
1903	1903-01-06	1903-12-31
1904	1904-01-02	1904-11-13
1905	1905-02-23	1905-11-26
1906	1906-01-17	1906-12-27
1907	1907-03-20	1907-12-20
1908	1908-02-24	1908-12-25
1909	1909-01-01	1909-12-06
1910	1910-04-28	1910-11-15
1911	1911-05-16	1911-12-06
1912	1912-05-17	1912-11-26
1913	1913-04-16	1913-12-08
1914	1914-01-03	1914-12-06
1915	1915-03-01	1915-12-26
1916	1916-02-17	1916-12-04
1917	1917-02-01	1917-11-19
1918	1918-01-02	1918-12-19
1919	1919-05-05	1919-12-16
1920	1920-01-02	1920-11-27
1921	1921-01-13	1921-11-03
1922	1922-01-02	1922-12-02
1923	1923-01-11	1923-11-14
1924	1924-01-05	1924-11-27
1925	1925-04-24	1925-12-28
1926	1926-01-26	1926-11-06
1927	1927-02-11	1927-12-01
1928	1928-04-01	1928-12-27
1929	1929-01-08	1929-12-22
1930	1930-01-08	1930-12-01
1931	1931-03-10	1931-12-27
1932	1932-02-24	1932-12-15
1933	1933-01-27	1933-12-23
1934	1934-01-25	1934-11-28
1935	1935-01-08	1935-12-27
1936	1936-02-16	1936-12-18
1937	1937-04-17	1937-12-11
1938	1938-03-24	1938-11-26
1939	1939-01-12	1939-11-18
1940	1940-05-04	1940-12-14
1941	1941-01-07	1941-12-17
1942	1942-04-25	1942-12-20
1943	1943-01-04	1943-11-25
1944	1944-02-22	1944-12-21
1945	1945-04-02	1945-11-13
1946	1946-01-20	1946-12-17
1947	1947-01-28	1947-12-15
1948	1948-01-18	1948-12-21
1949	1949-04-04	1949-11-02
1950	1950-02-21	1950-11-03
1951	1951-03-31	1951-11-19
1952	1952-02-22	1952-12-11
1953	1953-01-16	1953-10-31
1954	1954-01-11	1954-12-15
1955	1955-01-15	1955-12-02
1956	1956-01-11	1956-11-22
1957	1957-02-02	1957-11-15
1958	1958-04-25	1958-11-28
1959	1959-02-01	1959-11-30
1960	1960-03-07	1960-12-11
1961	1961-01-11	1961-11-12
1962	1962-02-19	1962-12-03
1964	1964-05-25	1964-12-23
1965	1965-04-05	1965-12-08
1966	1966-01-13	1966-12-21
1967	1967-01-11	1967-12-10
1968	1968-03-28	1968-12-19
1969	1969-05-03	1969-12-14
1970	1970-04-06	1970-11-20

Every Fixed Threshold

Fixed thresholds at Chengam
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	1930	36
25 mm (0.98 in): Days with 25 mm or more rain	69	27	1930	15
50 mm (1.97 in): Days with 50 mm or more rain	66	10	1930	7
100 mm (3.94 in): Days with 100 mm or more rain	10	2	1909	1
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 Chengam 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).

Chengam Threshold Days by Year (IN020010701)

Key Facts for Chengam Thresholds

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

Every Fixed Threshold

Download the Data

Related