Silli Threshold Days by Year (IN004120500)

4 fixed thresholds counted per year at Silli (IN004120500): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Silli Thresholds

Silli: days with 10 mm (0.39 in) or more of precipitation in 64 years, most in 1959 with 57.
Silli: days with 25 mm (0.98 in) or more of precipitation in 64 years, most in 1917 with 29.
Silli: days with 50 mm (1.97 in) or more of precipitation in 64 years, most in 1917 with 11.
Silli: days with 100 mm (3.94 in) or more of precipitation in 24 years, most in 1959 with 2.
4 fixed thresholds have at least one qualifying day at Silli.

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

64 years with a qualifying day

Days per year at Silli with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 57 in 1959.

Days with 10 mm (0.39 in) or more of precipitation per year at Silli
Year	Days	Decade average
1901	38	41.2
1902	30	41.2
1903	42	41.2
1904	44	41.2
1905	41	41.2
1906	49	41.2
1907	34	41.2
1908	41	41.2
1909	52	41.2
1910	40	44
1911	47	44
1914	32	44
1915	40	44
1916	48	44
1917	56	44
1918	36	44
1919	53	44
1920	38	42.3
1921	37	42.3
1922	50	42.3
1923	40	42.3
1924	46	42.3
1925	41	42.3
1926	49	42.3
1927	36	42.3
1928	43	42.3
1929	43	42.3
1930	36	41.5
1931	44	41.5
1932	42	41.5
1933	50	41.5
1934	30	41.5
1935	33	41.5
1936	49	41.5
1937	46	41.5
1938	41	41.5
1939	44	41.5
1940	33	43.6
1941	47	43.6
1942	53	43.6
1943	54	43.6
1944	43	43.6
1945	38	43.6
1946	51	43.6
1947	43	43.6
1948	40	43.6
1949	34	43.6
1950	54	42.4
1951	38	42.4
1952	42	42.4
1953	35	42.4
1954	35	42.4
1955	41	42.4
1956	48	42.4
1957	36	42.4
1958	38	42.4
1959	57	42.4
1960	48	36.2
1961	41	36.2
1965	30	36.2
1966	28	36.2
1968	43	36.2
1969	27	36.2
1970	43	43

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

First to last qualifying date each year at Silli
Year	First date	Last date
1901	1901-01-02	1901-10-05
1902	1902-02-22	1902-11-03
1903	1903-02-14	1903-10-31
1904	1904-02-19	1904-10-18
1905	1905-01-13	1905-09-29
1906	1906-01-21	1906-10-20
1907	1907-02-01	1907-12-12
1908	1908-01-12	1908-09-30
1909	1909-01-22	1909-10-01
1910	1910-01-03	1910-10-17
1911	1911-05-24	1911-11-26
1914	1914-02-18	1914-09-27
1915	1915-02-05	1915-10-07
1916	1916-04-18	1916-11-01
1917	1917-02-05	1917-10-29
1918	1918-03-21	1918-09-12
1919	1919-01-11	1919-10-24
1920	1920-02-07	1920-09-10
1921	1921-01-22	1921-09-17
1922	1922-02-05	1922-10-03
1923	1923-02-13	1923-10-05
1924	1924-04-21	1924-11-09
1925	1925-04-25	1925-10-15
1926	1926-01-10	1926-10-04
1927	1927-01-13	1927-10-02
1928	1928-01-26	1928-10-21
1929	1929-01-01	1929-12-26
1930	1930-04-12	1930-11-20
1931	1931-02-04	1931-10-18
1932	1932-04-18	1932-11-05
1933	1933-01-23	1933-09-22
1934	1934-04-13	1934-11-07
1935	1935-01-18	1935-09-22
1936	1936-01-31	1936-12-21
1937	1937-02-12	1937-10-09
1938	1938-01-09	1938-10-12
1939	1939-02-17	1939-10-24
1940	1940-03-01	1940-12-22
1941	1941-01-20	1941-11-19
1942	1942-02-21	1942-09-28
1943	1943-01-13	1943-10-19
1944	1944-01-30	1944-10-04
1945	1945-01-06	1945-10-22
1946	1946-04-11	1946-10-24
1947	1947-02-16	1947-12-14
1948	1948-02-04	1948-11-29
1949	1949-01-24	1949-10-29
1950	1950-02-22	1950-11-19
1951	1951-03-25	1951-10-16
1952	1952-03-03	1952-10-12
1953	1953-01-17	1953-11-14
1954	1954-05-24	1954-10-25
1955	1955-02-11	1955-11-08
1956	1956-02-02	1956-10-31
1957	1957-02-11	1957-09-26
1958	1958-01-30	1958-10-13
1959	1959-02-06	1959-10-29
1960	1960-03-12	1960-10-09
1961	1961-05-02	1961-10-31
1965	1965-02-20	1965-12-26
1966	1966-01-07	1966-12-01
1968	1968-01-11	1968-10-03
1969	1969-04-09	1969-11-05
1970	1970-01-12	1970-10-08

Every Fixed Threshold

Fixed thresholds at Silli
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	64	57	1959	43
25 mm (0.98 in): Days with 25 mm or more rain	64	29	1917	15
50 mm (1.97 in): Days with 50 mm or more rain	64	11	1917	5
100 mm (3.94 in): Days with 100 mm or more rain	24	2	1959	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 Silli 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).

Silli Threshold Days by Year (IN004120500)

Key Facts for Silli Thresholds

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

Every Fixed Threshold

Download the Data

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