Udumalpet Threshold Days by Year (IN020031300)

4 fixed thresholds counted per year at Udumalpet (IN020031300): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Udumalpet Thresholds

Udumalpet: days with 10 mm (0.39 in) or more of precipitation in 70 years, most in 1940 with 32.
Udumalpet: days with 25 mm (0.98 in) or more of precipitation in 69 years, most in 1922 with 13.
Udumalpet: days with 50 mm (1.97 in) or more of precipitation in 56 years, most in 1910 with 6.
Udumalpet: days with 100 mm (3.94 in) or more of precipitation in 12 years, most in 1935 with 2.
4 fixed thresholds have at least one qualifying day at Udumalpet.

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

70 years with a qualifying day

Days per year at Udumalpet with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 32 in 1940.

Days with 10 mm (0.39 in) or more of precipitation per year at Udumalpet
Year	Days	Decade average
1901	13	16.8
1902	24	16.8
1903	14	16.8
1904	8	16.8
1905	14	16.8
1906	25	16.8
1907	20	16.8
1908	18	16.8
1909	15	16.8
1910	19	17.6
1911	17	17.6
1912	18	17.6
1913	8	17.6
1914	17	17.6
1915	19	17.6
1916	18	17.6
1917	22	17.6
1918	22	17.6
1919	16	17.6
1920	20	19.3
1921	20	19.3
1922	26	19.3
1923	14	19.3
1924	19	19.3
1925	21	19.3
1926	17	19.3
1927	18	19.3
1928	19	19.3
1929	19	19.3
1930	23	17
1931	18	17
1932	21	17
1933	20	17
1934	13	17
1935	11	17
1936	24	17
1937	13	17
1938	11	17
1939	16	17
1940	32	19.1
1941	19	19.1
1942	15	19.1
1943	10	19.1
1944	28	19.1
1945	16	19.1
1946	26	19.1
1947	18	19.1
1948	15	19.1
1949	12	19.1
1950	15	17.3
1951	15	17.3
1952	12	17.3
1953	17	17.3
1954	22	17.3
1955	19	17.3
1956	18	17.3
1957	17	17.3
1958	18	17.3
1959	20	17.3
1960	20	16.7
1961	12	16.7
1962	21	16.7
1963	17	16.7
1964	22	16.7
1965	17	16.7
1966	16	16.7
1967	11	16.7
1968	18	16.7
1969	13	16.7
1970	21	21

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

First to last qualifying date each year at Udumalpet
Year	First date	Last date
1901	1901-05-27	1901-12-02
1902	1902-01-08	1902-12-07
1903	1903-03-10	1903-12-21
1904	1904-05-07	1904-10-28
1905	1905-03-19	1905-11-25
1906	1906-01-18	1906-12-06
1907	1907-01-09	1907-12-14
1908	1908-01-15	1908-11-01
1909	1909-01-01	1909-11-05
1910	1910-02-03	1910-11-17
1911	1911-03-09	1911-12-26
1912	1912-05-12	1912-12-19
1913	1913-05-26	1913-11-28
1914	1914-07-05	1914-12-06
1915	1915-01-19	1915-11-28
1916	1916-05-02	1916-12-09
1917	1917-02-02	1917-12-14
1918	1918-01-03	1918-12-13
1919	1919-04-10	1919-11-30
1920	1920-01-02	1920-11-27
1921	1921-01-13	1921-12-30
1922	1922-01-11	1922-12-03
1923	1923-01-12	1923-12-17
1924	1924-04-08	1924-11-09
1925	1925-01-13	1925-12-12
1926	1926-01-28	1926-12-31
1927	1927-04-13	1927-12-01
1928	1928-02-04	1928-12-28
1929	1929-04-04	1929-12-08
1930	1930-03-27	1930-12-01
1931	1931-05-24	1931-12-28
1932	1932-02-24	1932-12-14
1933	1933-04-11	1933-11-10
1934	1934-01-25	1934-11-09
1935	1935-04-03	1935-12-26
1936	1936-03-18	1936-12-19
1937	1937-03-19	1937-11-20
1938	1938-03-24	1938-12-27
1939	1939-01-11	1939-11-17
1940	1940-04-20	1940-12-12
1941	1941-01-07	1941-12-03
1942	1942-03-02	1942-12-18
1943	1943-01-03	1943-10-20
1944	1944-02-22	1944-12-23
1945	1945-04-25	1945-11-14
1946	1946-01-21	1946-12-26
1947	1947-03-01	1947-12-22
1948	1948-01-18	1948-12-21
1949	1949-04-04	1949-11-28
1950	1950-02-24	1950-12-13
1951	1951-04-01	1951-12-01
1952	1952-02-22	1952-12-25
1953	1953-02-23	1953-11-27
1954	1954-01-05	1954-12-15
1955	1955-01-09	1955-12-07
1956	1956-04-25	1956-11-20
1957	1957-05-18	1957-12-29
1958	1958-03-13	1958-11-21
1959	1959-04-14	1959-12-02
1960	1960-04-05	1960-11-17
1961	1961-05-05	1961-12-05
1962	1962-02-19	1962-12-05
1963	1963-01-08	1963-12-22
1964	1964-04-25	1964-12-24
1965	1965-04-29	1965-12-09
1966	1966-04-20	1966-12-21
1967	1967-04-22	1967-11-04
1968	1968-04-26	1968-12-19
1969	1969-03-17	1969-12-15
1970	1970-03-11	1970-12-30

Every Fixed Threshold

Fixed thresholds at Udumalpet
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	32	1940	21
25 mm (0.98 in): Days with 25 mm or more rain	69	13	1922	9
50 mm (1.97 in): Days with 50 mm or more rain	56	6	1910	4
100 mm (3.94 in): Days with 100 mm or more rain	12	2	1935	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.

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Data for Udumalpet 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).

Udumalpet Threshold Days by Year (IN020031300)

Key Facts for Udumalpet Thresholds

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

Every Fixed Threshold

Download the Data

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