York Threshold Days by Year (USC00259510)

21 fixed thresholds counted per year at York (USC00259510): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for York Thresholds

York: days with a maximum temperature at or above 30 C (86 F) in 104 years, most in 1934 with 108.
York: days with a maximum temperature at or above 90 F (32.2 C) in 104 years, most in 1936 with 87.
York: days with a maximum temperature at or below 0 C (32 F) in 104 years, most in 1978 with 70.
York: days with a maximum temperature at or above 35 C (95 F) in 103 years, most in 1913 with 68.
21 fixed thresholds have at least one qualifying day at York.

Days at or above 30 C (86 F)

104 years with a qualifying day

Days per year at York with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 108 in 1934.

Days at or above 30 C (86 F) per year at York
Year	Days	Decade average
1902	55	57.1
1903	45	57.1
1904	40	57.1
1906	39	57.1
1907	77	57.1
1908	63	57.1
1909	81	57.1
1910	71	77.8
1911	92	77.8
1912	76	77.8
1913	98	77.8
1914	83	77.8
1915	34	77.8
1916	79	77.8
1917	67	77.8
1918	100	77.8
1920	68	71.2
1921	101	71.2
1922	97	71.2
1923	61	71.2
1924	45	71.2
1925	85	71.2
1926	77	71.2
1927	61	71.2
1928	46	71.2
1929	71	71.2
1930	65	88.6
1931	101	88.6
1932	71	88.6
1933	87	88.6
1934	108	88.6
1935	67	88.6
1936	103	88.6
1937	91	88.6
1938	91	88.6
1939	102	88.6
1940	92	72.9
1941	73	72.9
1942	69	72.9
1943	85	72.9
1944	71	72.9
1945	56	72.9
1946	72	72.9
1947	65	72.9
1948	89	72.9
1949	57	72.9
1950	38	69.3
1951	45	69.3
1952	82	69.3
1953	83	69.3
1954	85	69.3
1955	81	69.3
1956	96	69.3
1957	53	69.3
1958	60	69.3
1959	70	69.3
1960	57	63.6
1961	66	63.6
1962	68	63.6
1963	84	63.6
1964	70	63.6
1965	45	63.6
1966	70	63.6
1967	53	63.6
1968	66	63.6
1969	57	63.6
1970	92	71.8
1971	78	71.8
1972	70	71.8
1973	69	71.8
1974	66	71.8
1975	72	71.8
1976	72	71.8
1977	60	71.8
1978	76	71.8
1979	63	71.8
1980	87	67.4
1981	64	67.4
1982	48	67.4
1983	81	67.4
1984	72	67.4
1985	54	67.4
1986	50	67.4
1987	76	67.4
1988	86	67.4
1989	56	67.4
1990	60	58.4
1991	74	58.4
1992	33	58.4
1993	45	58.4
1994	66	58.4
1995	67	58.4
1996	48	58.4
1997	66	58.4
1998	75	58.4
1999	50	58.4
2000	74	72.4
2001	69	72.4
2002	78	72.4
2003	71	72.4
2004	49	72.4
2005	79	72.4
2006	83	72.4
2007	76	72.4

For each year, a bar from the first to the last day at York meeting 30 C (86 F).

First to last qualifying date each year at York
Year	First date	Last date
1902	1902-04-20	1902-09-08
1903	1903-06-18	1903-10-19
1904	1904-05-22	1904-10-04
1906	1906-04-23	1906-09-25
1907	1907-03-21	1907-09-23
1908	1908-04-13	1908-10-15
1909	1909-05-04	1909-10-06
1910	1910-03-21	1910-10-16
1911	1911-05-09	1911-09-28
1912	1912-05-02	1912-10-05
1913	1913-04-30	1913-10-15
1914	1914-05-10	1914-10-17
1915	1915-04-28	1915-10-29
1916	1916-04-11	1916-10-07
1917	1917-03-30	1917-09-18
1918	1918-05-02	1918-10-15
1920	1920-06-07	1920-10-10
1921	1921-03-18	1921-10-16
1922	1922-05-03	1922-10-27
1923	1923-06-02	1923-09-10
1924	1924-04-14	1924-10-01
1925	1925-04-22	1925-09-29
1926	1926-04-29	1926-09-17
1927	1927-04-26	1927-10-25
1928	1928-03-22	1928-10-11
1929	1929-04-04	1929-09-25
1930	1930-04-09	1930-10-10
1931	1931-04-08	1931-10-10
1932	1932-05-12	1932-10-02
1933	1933-05-18	1933-09-25
1934	1934-04-10	1934-10-08
1935	1935-06-14	1935-09-24
1936	1936-04-13	1936-09-22
1937	1937-04-22	1937-10-29
1938	1938-06-05	1938-10-16
1939	1939-04-23	1939-10-06
1940	1940-04-14	1940-10-25
1941	1941-05-14	1941-09-20
1942	1942-04-04	1942-10-06
1943	1943-03-30	1943-10-10
1944	1944-05-12	1944-09-20
1945	1945-06-24	1945-09-23
1946	1946-03-31	1946-09-26
1947	1947-05-14	1947-10-21
1948	1948-04-18	1948-09-20
1949	1949-04-25	1949-10-08
1950	1950-04-22	1950-09-18
1951	1951-04-29	1951-10-02
1952	1952-05-04	1952-09-30
1953	1953-04-21	1953-10-02
1954	1954-04-06	1954-09-28
1955	1955-04-19	1955-09-17
1956	1956-04-01	1956-10-12
1957	1957-06-03	1957-09-30
1958	1958-05-11	1958-10-15
1959	1959-04-30	1959-09-15
1960	1960-04-22	1960-10-11
1961	1961-05-28	1961-10-17
1962	1962-04-20	1962-10-11
1963	1963-05-03	1963-10-19
1964	1964-04-16	1964-09-09
1965	1965-04-29	1965-08-29
1966	1966-05-04	1966-10-08
1967	1967-03-23	1967-10-03
1968	1968-03-30	1968-10-01
1969	1969-05-25	1969-10-03
1970	1970-04-27	1970-10-01
1971	1971-05-15	1971-10-01
1972	1972-04-06	1972-09-19
1973	1973-05-18	1973-09-02
1974	1974-05-20	1974-10-10
1975	1975-05-17	1975-10-22
1976	1976-05-19	1976-10-11
1977	1977-04-27	1977-09-08
1978	1978-03-31	1978-10-20
1979	1979-05-16	1979-09-30
1980	1980-04-20	1980-10-09
1981	1981-04-25	1981-09-29
1982	1982-06-06	1982-10-05
1983	1983-05-24	1983-09-27
1984	1984-05-31	1984-09-23
1985	1985-04-11	1985-09-18
1986	1986-03-29	1986-09-29
1987	1987-04-20	1987-10-02
1988	1988-04-09	1988-09-27
1989	1989-04-21	1989-10-14
1990	1990-04-23	1990-10-06
1991	1991-04-06	1991-10-09
1992	1992-04-15	1992-10-04
1993	1993-05-15	1993-10-08
1994	1994-04-18	1994-10-01
1995	1995-06-07	1995-10-13
1996	1996-04-12	1996-09-11
1997	1997-05-17	1997-10-07
1998	1998-05-14	1998-09-30
1999	1999-06-05	1999-09-25
2000	2000-04-06	2000-10-02
2001	2001-04-27	2001-10-03
2002	2002-04-15	2002-10-02
2003	2003-04-02	2003-10-23
2004	2004-04-17	2004-09-21
2005	2005-05-11	2005-10-19
2006	2006-04-14	2006-11-09
2007	2007-04-30	2007-10-07

Every Fixed Threshold

Fixed thresholds at York
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	104	108	1934	76
35 C (95 F): Days	103	68	1913	21
40 C (104 F): Days	51	28	1913	1
45 C (113 F): Days	2	2	1936	1
90 F (32.2 C): Days	104	87	1936	54
100 F (37.8 C): Days	88	43	1936	2
110 F (43.3 C): Days	8	6	1936	1
0 C (32 F): Ice days (max	104	70	1978	46
0 C (32 F): Frost days (min	103	166	1907	125
-10 C (14 F): Days with min	103	73	1978	44
-20 C (-4 F): Days with min	100	30	1936	5
-30 C (-22 F): Days with min	10	2	1915	2
20 C (68 F): Tropical nights (min	103	55	2007	55
25 C (77 F): Days with min	43	12	1934	1
10 mm (0.39 in): Days with 10 mm or more rain	94	37	1993	31
25 mm (0.98 in): Days with 25 mm or more rain	94	13	1902	10
50 mm (1.97 in): Days with 50 mm or more rain	65	5	1900	3
100 mm (3.94 in): Days with 100 mm or more rain	10	1	1900	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1950	1
10 cm (3.9 in): Days with 10 cm or more snowfall	60	6	1975	1
25 cm (9.8 in): Days with 25 cm or more snowfall	11	2	1968	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1902.

Download the Data

Data for York 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).

York Threshold Days by Year (USC00259510)

Key Facts for York Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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