Silvan Threshold Days by Year

5 fixed thresholds counted per year at Silvan (ASN00086106): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Silvan Thresholds

Silvan: days with 10 mm (0.39 in) or more of precipitation in 81 years, most in 1992 with 57.
Silvan: days with 25 mm (0.98 in) or more of precipitation in 81 years, most in 1924 with 15.
Silvan: days with 50 mm (1.97 in) or more of precipitation in 52 years, most in 1950 with 4.
Silvan: days with 100 mm (3.94 in) or more of precipitation in 6 years, most in 1931 with 1.
5 fixed thresholds have at least one qualifying day at Silvan.

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

81 years with a qualifying day

Days per year at Silvan with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 57 in 1992.

Days with 10 mm (0.39 in) or more of precipitation per year at Silvan
Year	Days	Decade average
1921	42	38.2
1922	36	38.2
1923	44	38.2
1924	46	38.2
1925	29	38.2
1926	36	38.2
1927	27	38.2
1928	40	38.2
1929	44	38.2
1931	42	35.8
1932	34	35.8
1933	32	35.8
1934	37	35.8
1935	43	35.8
1936	37	35.8
1937	28	35.8
1938	20	35.8
1939	49	35.8
1940	33	33.8
1942	35	33.8
1943	33	33.8
1945	27	33.8
1946	39	33.8
1947	38	33.8
1948	34	33.8
1949	31	33.8
1950	33	41.9
1951	36	41.9
1952	52	41.9
1953	44	41.9
1954	38	41.9
1955	45	41.9
1956	50	41.9
1957	40	41.9
1958	47	41.9
1959	34	41.9
1960	52	39.2
1961	38	39.2
1962	46	39.2
1963	31	39.2
1964	44	39.2
1965	39	39.2
1966	40	39.2
1967	32	39.2
1968	34	39.2
1969	36	39.2
1970	48	42.3
1971	48	42.3
1972	31	42.3
1973	51	42.3
1974	49	42.3
1975	46	42.3
1976	34	42.3
1977	35	42.3
1978	46	42.3
1979	35	42.3
1980	35	38.6
1981	34	38.6
1982	24	38.6
1983	42	38.6
1984	42	38.6
1985	48	38.6
1986	37	38.6
1987	45	38.6
1988	37	38.6
1989	42	38.6
1990	42	40.3
1991	37	40.3
1992	57	40.3
1993	52	40.3
1994	31	40.3
1995	46	40.3
1996	51	40.3
1997	21	40.3
1998	33	40.3
1999	33	40.3
2000	35	34.8
2001	38	34.8
2002	23	34.8
2003	38	34.8
2004	40	34.8

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

First to last qualifying date each year at Silvan
Year	First date	Last date
1921	1921-01-02	1921-12-08
1922	1922-01-08	1922-12-30
1923	1923-01-19	1923-12-16
1924	1924-01-10	1924-12-27
1925	1925-01-13	1925-12-24
1926	1926-01-08	1926-12-18
1927	1927-01-17	1927-12-03
1928	1928-01-18	1928-12-23
1929	1929-01-30	1929-12-29
1931	1931-01-19	1931-11-21
1932	1932-02-06	1932-12-25
1933	1933-01-27	1933-12-17
1934	1934-01-06	1934-12-01
1935	1935-01-05	1935-12-21
1936	1936-01-04	1936-12-21
1937	1937-01-03	1937-10-19
1938	1938-01-15	1938-12-13
1939	1939-02-03	1939-12-06
1940	1940-01-06	1940-12-28
1942	1942-01-20	1942-12-19
1943	1943-01-16	1943-12-04
1945	1945-01-02	1945-12-27
1946	1946-01-17	1946-12-28
1947	1947-01-07	1947-12-23
1948	1948-02-04	1948-11-09
1949	1949-01-17	1949-12-21
1950	1950-02-01	1950-12-28
1951	1951-01-13	1951-12-20
1952	1952-01-05	1952-12-12
1953	1953-01-06	1953-12-07
1954	1954-01-28	1954-12-12
1955	1955-01-29	1955-12-31
1956	1956-01-05	1956-12-27
1957	1957-02-16	1957-12-29
1958	1958-01-31	1958-12-17
1959	1959-01-26	1959-12-26
1960	1960-01-09	1960-11-22
1961	1961-01-01	1961-12-19
1962	1962-01-17	1962-12-12
1963	1963-01-06	1963-12-06
1964	1964-02-12	1964-12-29
1965	1965-01-12	1965-12-08
1966	1966-01-13	1966-12-16
1967	1967-01-13	1967-12-31
1968	1968-01-21	1968-12-24
1969	1969-01-26	1969-12-03
1970	1970-01-02	1970-12-31
1971	1971-01-01	1971-12-23
1972	1972-01-01	1972-11-11
1973	1973-01-13	1973-12-23
1974	1974-02-02	1974-12-28
1975	1975-01-11	1975-12-30
1976	1976-01-09	1976-12-24
1977	1977-01-15	1977-12-28
1978	1978-01-24	1978-12-26
1979	1979-01-17	1979-11-21
1980	1980-01-04	1980-12-14
1981	1981-01-19	1981-11-29
1982	1982-01-25	1982-12-09
1983	1983-01-02	1983-12-07
1984	1984-01-02	1984-12-20
1985	1985-01-31	1985-12-31
1986	1986-01-09	1986-12-17
1987	1987-02-15	1987-12-28
1988	1988-01-01	1988-12-26
1989	1989-01-04	1989-12-27
1990	1990-02-01	1990-12-20
1991	1991-01-05	1991-12-31
1992	1992-01-01	1992-12-28
1993	1993-01-17	1993-12-28
1994	1994-01-04	1994-12-22
1995	1995-01-06	1995-12-21
1996	1996-01-01	1996-12-25
1997	1997-01-23	1997-12-14
1998	1998-01-13	1998-12-27
1999	1999-01-08	1999-12-28
2000	2000-01-05	2000-12-23
2001	2001-01-25	2001-12-07
2002	2002-01-02	2002-12-06
2003	2003-01-01	2003-12-22
2004	2004-01-08	2004-12-01

Every Fixed Threshold

Fixed thresholds at Silvan
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	81	57	1992	40
25 mm (0.98 in): Days with 25 mm or more rain	81	15	1924	9
50 mm (1.97 in): Days with 50 mm or more rain	52	4	1950	1
100 mm (3.94 in): Days with 100 mm or more rain	6	1	1931	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1934	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1921.

Download the Data

Data for Silvan 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Silvan Threshold Days by Year

Key Facts for Silvan Thresholds

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

Every Fixed Threshold

Download the Data

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