Le Roy Threshold Days by Year (USC00144675)

7 fixed thresholds counted per year at Le Roy (USC00144675): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Le Roy Thresholds

Le Roy: days with 10 mm (0.39 in) or more of precipitation in 111 years, most in 1915 with 48.
Le Roy: days with 25 mm (0.98 in) or more of precipitation in 111 years, most in 1915 with 24.
Le Roy: days with 50 mm (1.97 in) or more of precipitation in 97 years, most in 1969 with 8.
Le Roy: days with 10 cm (3.9 in) or more of snowfall in 35 years, most in 2010 with 5.
7 fixed thresholds have at least one qualifying day at Le Roy.

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

111 years with a qualifying day

Days per year at Le Roy with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 48 in 1915.

Days with 10 mm (0.39 in) or more of precipitation per year at Le Roy
Year	Days	Decade average
1909	32	32
1910	23	27.6
1911	22	27.6
1912	29	27.6
1913	26	27.6
1914	28	27.6
1915	48	27.6
1916	32	27.6
1917	19	27.6
1918	26	27.6
1919	23	27.6
1920	31	30.7
1921	28	30.7
1922	35	30.7
1923	32	30.7
1924	30	30.7
1925	21	30.7
1926	32	30.7
1927	37	30.7
1928	33	30.7
1929	28	30.7
1930	26	27.3
1931	26	27.3
1932	28	27.3
1933	29	27.3
1934	26	27.3
1935	35	27.3
1936	19	27.3
1937	23	27.3
1938	34	27.3
1940	27	31.9
1941	40	31.9
1942	39	31.9
1943	30	31.9
1944	40	31.9
1945	35	31.9
1946	23	31.9
1947	27	31.9
1948	28	31.9
1949	30	31.9
1950	31	27.2
1951	44	27.2
1952	23	27.2
1953	19	27.2
1954	22	27.2
1955	25	27.2
1956	19	27.2
1957	34	27.2
1958	29	27.2
1959	26	27.2
1960	35	29.9
1961	34	29.9
1962	28	29.9
1963	20	29.9
1964	31	29.9
1965	30	29.9
1966	21	29.9
1967	36	29.9
1968	26	29.9
1969	38	29.9
1970	29	29.9
1971	30	29.9
1972	31	29.9
1973	44	29.9
1974	28	29.9
1975	30	29.9
1976	26	29.9
1977	36	29.9
1978	22	29.9
1979	23	29.9
1980	18	33.6
1981	35	33.6
1982	38	33.6
1983	40	33.6
1984	28	33.6
1985	45	33.6
1986	32	33.6
1987	44	33.6
1988	27	33.6
1989	29	33.6
1990	40	33.5
1991	28	33.5
1992	46	33.5
1993	37	33.5
1994	27	33.5
1995	25	33.5
1996	24	33.5
1997	35	33.5
1998	38	33.5
1999	35	33.5
2000	25	31
2001	29	31
2002	26	31
2003	21	31
2004	40	31
2005	28	31
2006	27	31
2007	33	31
2008	42	31
2009	39	31
2010	34	30.5
2013	28	30.5
2014	29	30.5
2015	34	30.5
2016	31	30.5
2017	29	30.5
2018	28	30.5
2019	31	30.5
2020	27	25.3
2021	28	25.3
2023	21	25.3

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

First to last qualifying date each year at Le Roy
Year	First date	Last date
1909	1909-02-14	1909-12-05
1910	1910-01-05	1910-12-28
1911	1911-02-14	1911-12-20
1912	1912-02-26	1912-10-31
1913	1913-02-21	1913-12-06
1914	1914-02-12	1914-10-12
1915	1915-01-16	1915-12-11
1916	1916-01-13	1916-11-22
1917	1917-03-03	1917-10-26
1918	1918-01-11	1918-12-24
1919	1919-01-01	1919-11-29
1920	1920-03-25	1920-12-21
1921	1921-01-24	1921-10-30
1922	1922-02-23	1922-11-13
1923	1923-03-12	1923-11-30
1924	1924-03-17	1924-12-04
1925	1925-01-01	1925-11-07
1926	1926-03-20	1926-12-07
1927	1927-03-19	1927-12-31
1928	1928-02-06	1928-12-17
1929	1929-01-05	1929-10-31
1930	1930-01-09	1930-12-15
1931	1931-01-07	1931-11-23
1932	1932-01-04	1932-12-24
1933	1933-01-18	1933-12-19
1934	1934-02-18	1934-12-19
1935	1935-01-08	1935-11-27
1936	1936-01-02	1936-12-27
1937	1937-01-08	1937-12-15
1938	1938-01-24	1938-11-06
1940	1940-03-12	1940-12-15
1941	1941-01-01	1941-12-25
1942	1942-02-14	1942-12-27
1943	1943-02-03	1943-12-10
1944	1944-01-27	1944-12-10
1945	1945-03-15	1945-12-13
1946	1946-01-05	1946-12-09
1947	1947-03-12	1947-12-04
1948	1948-01-01	1948-11-02
1949	1949-01-10	1949-12-21
1950	1950-03-11	1950-09-16
1951	1951-01-02	1951-11-25
1952	1952-01-02	1952-11-26
1953	1953-02-11	1953-12-03
1954	1954-02-20	1954-12-27
1955	1955-01-05	1955-10-05
1956	1956-04-10	1956-12-08
1957	1957-02-15	1957-12-31
1958	1958-01-20	1958-11-18
1959	1959-03-06	1959-10-13
1960	1960-02-04	1960-12-11
1961	1961-02-18	1961-12-09
1962	1962-02-15	1962-11-27
1963	1963-01-05	1963-11-20
1964	1964-01-31	1964-12-10
1965	1965-01-02	1965-12-24
1966	1966-02-09	1966-12-28
1967	1967-01-26	1967-12-03
1968	1968-03-30	1968-12-27
1969	1969-03-08	1969-12-11
1970	1970-04-01	1970-12-16
1971	1971-01-03	1971-12-30
1972	1972-02-12	1972-12-30
1973	1973-01-03	1973-12-24
1974	1974-01-09	1974-12-31
1975	1975-01-31	1975-12-15
1976	1976-03-04	1976-10-30
1977	1977-03-03	1977-11-09
1978	1978-02-12	1978-12-31
1979	1979-01-19	1979-11-21
1980	1980-01-19	1980-11-23
1981	1981-03-25	1981-11-30
1982	1982-01-03	1982-12-26
1983	1983-01-27	1983-12-04
1984	1984-02-26	1984-12-30
1985	1985-01-01	1985-12-11
1986	1986-02-03	1986-11-26
1987	1987-01-10	1987-12-27
1988	1988-01-19	1988-12-27
1989	1989-01-26	1989-10-30
1990	1990-01-17	1990-11-09
1991	1991-03-17	1991-12-20
1992	1992-01-01	1992-12-15
1993	1993-01-02	1993-11-17
1994	1994-02-23	1994-12-07
1995	1995-02-27	1995-12-19
1996	1996-03-25	1996-12-01
1997	1997-01-24	1997-12-24
1998	1998-01-04	1998-12-19
1999	1999-01-02	1999-12-09
2000	2000-02-18	2000-11-06
2001	2001-01-29	2001-12-13
2002	2002-01-30	2002-12-24
2003	2003-02-14	2003-12-10
2004	2004-01-17	2004-12-06
2005	2005-01-06	2005-11-01
2006	2006-01-11	2006-12-30
2007	2007-01-21	2007-12-11
2008	2008-01-08	2008-12-27
2009	2009-02-11	2009-12-25
2010	2010-02-20	2010-11-13
2013	2013-01-30	2013-11-06
2014	2014-02-05	2014-12-15
2015	2015-02-01	2015-12-27
2016	2016-02-02	2016-12-26
2017	2017-01-15	2017-10-22
2018	2018-02-05	2018-12-31
2019	2019-01-12	2019-12-29
2020	2020-01-11	2020-12-30
2021	2021-01-07	2021-11-11
2023	2023-01-03	2023-12-22

Every Fixed Threshold

Fixed thresholds at Le Roy
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	111	48	1915	21
25 mm (0.98 in): Days with 25 mm or more rain	111	24	1915	6
50 mm (1.97 in): Days with 50 mm or more rain	97	8	1969	1
100 mm (3.94 in): Days with 100 mm or more rain	33	4	1998	1
200 mm (7.87 in): Days with 200 mm or more rain	3	1	1909	1
10 cm (3.9 in): Days with 10 cm or more snowfall	35	5	2010	5
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1962	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1909.

Download the Data

Data for Le Roy 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Le Roy Threshold Days by Year (USC00144675)

Key Facts for Le Roy Thresholds

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

Every Fixed Threshold

Download the Data

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