Uniondale (Tnk) Threshold Days by Year (SF000302190)

4 fixed thresholds counted per year at Uniondale (Tnk) (SF000302190): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Uniondale (Tnk) Thresholds

Uniondale (Tnk): days with 10 mm (0.39 in) or more of precipitation in 94 years, most in 1930 with 17.
Uniondale (Tnk): days with 25 mm (0.98 in) or more of precipitation in 79 years, most in 1888 with 8.
Uniondale (Tnk): days with 50 mm (1.97 in) or more of precipitation in 28 years, most in 1888 with 3.
Uniondale (Tnk): days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1885 with 1.
4 fixed thresholds have at least one qualifying day at Uniondale (Tnk).

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

94 years with a qualifying day

Days per year at Uniondale (Tnk) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 17 in 1930.

Days with 10 mm (0.39 in) or more of precipitation per year at Uniondale (Tnk)
Year	Days	Decade average
1879	8	8
1880	8	9.3
1881	7	9.3
1882	4	9.3
1883	7	9.3
1884	15	9.3
1885	7	9.3
1886	15	9.3
1887	10	9.3
1888	14	9.3
1889	6	9.3
1890	7	8.9
1892	13	8.9
1893	15	8.9
1894	7	8.9
1895	9	8.9
1896	9	8.9
1897	7	8.9
1898	9	8.9
1899	4	8.9
1900	8	10.2
1901	9	10.2
1902	10	10.2
1903	6	10.2
1904	13	10.2
1905	11	10.2
1906	12	10.2
1907	9	10.2
1908	13	10.2
1909	11	10.2
1910	10	8.5
1911	11	8.5
1912	9	8.5
1913	13	8.5
1914	11	8.5
1915	3	8.5
1916	8	8.5
1917	11	8.5
1918	5	8.5
1919	4	8.5
1920	9	7.6
1921	9	7.6
1922	8	7.6
1923	8	7.6
1924	4	7.6
1925	10	7.6
1926	6	7.6
1927	6	7.6
1928	7	7.6
1929	9	7.6
1930	17	10.7
1931	12	10.7
1932	11	10.7
1933	10	10.7
1934	11	10.7
1935	11	10.7
1936	10	10.7
1937	9	10.7
1938	8	10.7
1939	8	10.7
1940	8	8.2
1941	10	8.2
1942	9	8.2
1943	6	8.2
1944	15	8.2
1945	8	8.2
1946	5	8.2
1947	8	8.2
1949	5	8.2
1950	11	8.9
1951	6	8.9
1952	10	8.9
1953	11	8.9
1954	12	8.9
1955	11	8.9
1956	9	8.9
1957	4	8.9
1958	5	8.9
1959	10	8.9
1960	9	9.4
1961	7	9.4
1962	9	9.4
1963	10	9.4
1964	14	9.4
1965	10	9.4
1966	4	9.4
1967	14	9.4
1968	13	9.4
1969	4	9.4
1970	2	5.2
1971	2	5.2
1975	6	5.2
1976	11	5.2
1978	5	5.2

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

First to last qualifying date each year at Uniondale (Tnk)
Year	First date	Last date
1879	1879-03-19	1879-10-10
1880	1880-03-10	1880-09-06
1881	1881-02-15	1881-08-26
1882	1882-01-28	1882-12-20
1883	1883-04-24	1883-10-26
1884	1884-01-22	1884-11-02
1885	1885-05-14	1885-11-04
1886	1886-01-21	1886-12-23
1887	1887-02-17	1887-12-11
1888	1888-03-02	1888-11-09
1889	1889-02-25	1889-12-19
1890	1890-02-07	1890-12-05
1892	1892-02-07	1892-12-12
1893	1893-02-16	1893-11-20
1894	1894-01-23	1894-11-21
1895	1895-01-01	1895-10-03
1896	1896-02-02	1896-11-17
1897	1897-03-06	1897-11-04
1898	1898-01-02	1898-07-16
1899	1899-04-22	1899-07-23
1900	1900-01-10	1900-08-23
1901	1901-01-20	1901-11-20
1902	1902-02-11	1902-11-13
1903	1903-04-22	1903-11-13
1904	1904-01-09	1904-12-13
1905	1905-03-29	1905-10-09
1906	1906-02-10	1906-12-15
1907	1907-01-08	1907-12-01
1908	1908-01-01	1908-12-21
1909	1909-01-02	1909-12-26
1910	1910-02-03	1910-11-03
1911	1911-01-05	1911-11-04
1912	1912-01-14	1912-12-23
1913	1913-01-05	1913-10-09
1914	1914-01-18	1914-11-07
1915	1915-04-05	1915-07-17
1916	1916-01-18	1916-12-18
1917	1917-02-20	1917-10-01
1918	1918-03-14	1918-10-29
1919	1919-02-16	1919-10-18
1920	1920-02-20	1920-12-18
1921	1921-02-02	1921-12-28
1922	1922-01-11	1922-11-23
1923	1923-01-30	1923-11-13
1924	1924-05-20	1924-09-08
1925	1925-01-20	1925-11-23
1926	1926-06-17	1926-11-26
1927	1927-05-14	1927-12-02
1928	1928-02-26	1928-09-24
1929	1929-02-11	1929-12-28
1930	1930-01-25	1930-12-31
1931	1931-04-07	1931-12-31
1932	1932-01-01	1932-10-23
1933	1933-02-23	1933-12-21
1934	1934-02-02	1934-12-21
1935	1935-02-09	1935-12-31
1936	1936-03-09	1936-12-04
1937	1937-02-18	1937-11-14
1938	1938-04-18	1938-11-14
1939	1939-02-13	1939-08-22
1940	1940-01-21	1940-07-30
1941	1941-01-06	1941-12-22
1942	1942-02-13	1942-12-05
1943	1943-03-23	1943-12-13
1944	1944-05-11	1944-11-29
1945	1945-03-26	1945-07-26
1946	1946-03-22	1946-10-13
1947	1947-03-21	1947-11-12
1949	1949-03-19	1949-11-15
1950	1950-03-15	1950-11-10
1951	1951-01-11	1951-08-30
1952	1952-02-06	1952-12-15
1953	1953-04-08	1953-12-20
1954	1954-03-13	1954-11-20
1955	1955-02-17	1955-12-18
1956	1956-01-16	1956-12-20
1957	1957-01-31	1957-09-12
1958	1958-04-19	1958-12-04
1959	1959-01-11	1959-12-03
1960	1960-01-04	1960-11-13
1961	1961-03-20	1961-11-26
1962	1962-01-18	1962-11-20
1963	1963-01-16	1963-12-08
1964	1964-02-01	1964-12-07
1965	1965-02-17	1965-12-17
1966	1966-01-21	1966-09-14
1967	1967-03-18	1967-12-10
1968	1968-03-11	1968-12-22
1969	1969-03-08	1969-09-12
1970	1970-12-05	1970-12-06
1971	1971-07-30	1971-08-22
1975	1975-01-31	1975-09-12
1976	1976-01-04	1976-11-05
1978	1978-01-09	1978-09-01

Every Fixed Threshold

Fixed thresholds at Uniondale (Tnk)
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	94	17	1930	5
25 mm (0.98 in): Days with 25 mm or more rain	79	8	1888	4
50 mm (1.97 in): Days with 50 mm or more rain	28	3	1888	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1885	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1879.

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Data for Uniondale (Tnk) 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).

Uniondale (Tnk) Threshold Days by Year (SF000302190)

Key Facts for Uniondale (Tnk) Thresholds

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

Every Fixed Threshold

Download the Data

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