Nilambur Threshold Days by Year (IN010060500)

5 fixed thresholds counted per year at Nilambur (IN010060500): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Nilambur Thresholds

Nilambur: days with 10 mm (0.39 in) or more of precipitation in 58 years, most in 1933 with 108.
Nilambur: days with 25 mm (0.98 in) or more of precipitation in 58 years, most in 1959 with 58.
Nilambur: days with 50 mm (1.97 in) or more of precipitation in 58 years, most in 1959 with 27.
Nilambur: days with 100 mm (3.94 in) or more of precipitation in 52 years, most in 1924 with 11.
5 fixed thresholds have at least one qualifying day at Nilambur.

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

58 years with a qualifying day

Days per year at Nilambur with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 108 in 1933.

Days with 10 mm (0.39 in) or more of precipitation per year at Nilambur
Year	Days	Decade average
1901	81	74.2
1902	74	74.2
1903	76	74.2
1904	85	74.2
1905	69	74.2
1906	57	74.2
1907	87	74.2
1908	61	74.2
1909	78	74.2
1910	73	72.9
1911	66	72.9
1912	77	72.9
1913	66	72.9
1914	80	72.9
1915	73	72.9
1916	75	72.9
1917	75	72.9
1918	64	72.9
1919	80	72.9
1920	72	73.4
1923	81	73.4
1924	79	73.4
1925	70	73.4
1926	70	73.4
1927	73	73.4
1928	63	73.4
1929	79	73.4
1930	75	77.2
1931	87	77.2
1932	95	77.2
1933	108	77.2
1934	55	77.2
1935	67	77.2
1936	77	77.2
1937	69	77.2
1938	68	77.2
1939	71	77.2
1940	84	77.2
1941	72	77.2
1942	77	77.2
1943	86	77.2
1944	80	77.2
1945	60	77.2
1946	81	77.2
1947	75	77.2
1948	82	77.2
1949	75	77.2
1950	75	74
1951	67	74
1952	70	74
1953	61	74
1954	77	74
1955	82	74
1956	74	74
1957	69	74
1958	79	74
1959	86	74
1965	54	54

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

First to last qualifying date each year at Nilambur
Year	First date	Last date
1901	1901-02-21	1901-12-12
1902	1902-03-15	1902-12-09
1903	1903-05-05	1903-11-17
1904	1904-01-02	1904-11-13
1905	1905-04-25	1905-11-26
1906	1906-01-18	1906-12-20
1907	1907-04-12	1907-12-21
1908	1908-02-24	1908-10-31
1909	1909-01-03	1909-12-13
1910	1910-02-23	1910-11-15
1911	1911-04-24	1911-11-25
1912	1912-04-22	1912-11-30
1913	1913-04-29	1913-11-01
1914	1914-06-05	1914-12-14
1915	1915-04-16	1915-12-29
1916	1916-04-10	1916-12-04
1917	1917-02-02	1917-12-12
1918	1918-04-19	1918-12-19
1919	1919-01-07	1919-12-06
1920	1920-01-08	1920-11-24
1923	1923-04-11	1923-11-04
1924	1924-01-08	1924-12-09
1925	1925-04-03	1925-12-03
1926	1926-05-14	1926-11-07
1927	1927-04-27	1927-11-10
1928	1928-02-03	1928-12-30
1929	1929-04-08	1929-11-09
1930	1930-04-11	1930-12-02
1931	1931-04-03	1931-12-27
1932	1932-04-14	1932-11-30
1933	1933-04-02	1933-12-17
1934	1934-01-10	1934-11-03
1935	1935-01-24	1935-12-29
1936	1936-03-18	1936-11-20
1937	1937-03-25	1937-11-20
1938	1938-03-25	1938-11-19
1939	1939-04-15	1939-11-18
1940	1940-04-25	1940-12-15
1941	1941-05-02	1941-12-16
1942	1942-04-24	1942-12-09
1943	1943-01-04	1943-11-17
1944	1944-04-26	1944-12-23
1945	1945-02-17	1945-11-19
1946	1946-03-18	1946-12-08
1947	1947-03-05	1947-11-24
1948	1948-02-19	1948-12-21
1949	1949-04-15	1949-11-02
1950	1950-02-20	1950-11-13
1951	1951-04-13	1951-11-21
1952	1952-02-24	1952-12-11
1953	1953-04-25	1953-10-22
1954	1954-01-12	1954-12-16
1955	1955-04-12	1955-11-25
1956	1956-04-23	1956-12-05
1957	1957-05-19	1957-11-14
1958	1958-03-12	1958-11-19
1959	1959-04-07	1959-12-21
1965	1965-04-19	1965-12-09

Every Fixed Threshold

Fixed thresholds at Nilambur
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	58	108	1933	54
25 mm (0.98 in): Days with 25 mm or more rain	58	58	1959	31
50 mm (1.97 in): Days with 50 mm or more rain	58	27	1959	16
100 mm (3.94 in): Days with 100 mm or more rain	52	11	1924	5
200 mm (7.87 in): Days with 200 mm or more rain	9	4	1924	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 Nilambur 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).

Nilambur Threshold Days by Year (IN010060500)

Key Facts for Nilambur Thresholds

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

Every Fixed Threshold

Download the Data

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