Genoa 2 W Threshold Days by Year (USC00253185)

20 fixed thresholds counted per year at Genoa 2 W (USC00253185): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Genoa 2 W Thresholds

Genoa 2 W: days with a maximum temperature at or above 30 C (86 F) in 122 years, most in 1939 with 122.
Genoa 2 W: days with a maximum temperature at or above 90 F (32.2 C) in 122 years, most in 1936 with 91.
Genoa 2 W: days with a maximum temperature at or below 0 C (32 F) in 122 years, most in 1978 with 77.
Genoa 2 W: nights with a minimum temperature at or below 0 C (32 F) in 122 years, most in 1907 with 174.
20 fixed thresholds have at least one qualifying day at Genoa 2 W.

Days at or above 30 C (86 F)

122 years with a qualifying day

Days per year at Genoa 2 W with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 122 in 1939.

Days at or above 30 C (86 F) per year at Genoa 2 W
Year	Days	Decade average
1893	54	65
1894	83	65
1895	63	65
1897	67	65
1898	61	65
1899	62	65
1900	64	52.8
1901	76	52.8
1902	27	52.8
1904	36	52.8
1905	39	52.8
1906	46	52.8
1907	65	52.8
1908	50	52.8
1909	72	52.8
1910	73	67.3
1911	82	67.3
1912	66	67.3
1913	84	67.3
1914	82	67.3
1915	21	67.3
1916	78	67.3
1917	52	67.3
1921	79	62.7
1922	76	62.7
1923	42	62.7
1924	33	62.7
1926	65	62.7
1927	65	62.7
1929	79	62.7
1934	106	98.7
1935	71	98.7
1936	111	98.7
1937	87	98.7
1938	95	98.7
1939	122	98.7
1940	88	70.4
1942	67	70.4
1943	72	70.4
1944	61	70.4
1945	60	70.4
1946	66	70.4
1947	78	70.4
1948	84	70.4
1949	58	70.4
1950	42	71.4
1951	41	71.4
1952	80	71.4
1953	89	71.4
1954	87	71.4
1955	87	71.4
1956	103	71.4
1957	57	71.4
1958	55	71.4
1959	73	71.4
1960	60	59.2
1961	69	59.2
1962	64	59.2
1963	88	59.2
1964	48	59.2
1965	42	59.2
1966	61	59.2
1967	41	59.2
1968	63	59.2
1969	56	59.2
1970	74	62.7
1971	65	62.7
1972	58	62.7
1973	63	62.7
1974	63	62.7
1975	68	62.7
1976	72	62.7
1977	47	62.7
1978	60	62.7
1979	57	62.7
1980	78	61.2
1981	52	61.2
1982	32	61.2
1983	74	61.2
1984	53	61.2
1985	49	61.2
1986	52	61.2
1987	74	61.2
1988	87	61.2
1989	61	61.2
1990	57	51.8
1991	73	51.8
1992	16	51.8
1993	29	51.8
1994	55	51.8
1995	66	51.8
1996	39	51.8
1997	62	51.8
1998	73	51.8
1999	48	51.8
2000	75	63.8
2001	72	63.8
2002	85	63.8
2003	75	63.8
2004	53	63.8
2005	73	63.8
2006	76	63.8
2007	65	63.8
2008	42	63.8
2009	22	63.8
2010	61	52.8
2011	48	52.8
2012	86	52.8
2013	58	52.8
2014	33	52.8
2015	38	52.8
2016	41	52.8
2017	57	52.8
2018	56	52.8
2019	50	52.8
2020	66	65.1
2021	58	65.1
2022	76	65.1
2023	65	65.1
2024	53	65.1
2025	76	65.1
2026	62	65.1

For each year, a bar from the first to the last day at Genoa 2 W meeting 30 C (86 F).

First to last qualifying date each year at Genoa 2 W
Year	First date	Last date
1893	1893-06-08	1893-10-09
1894	1894-04-28	1894-09-28
1895	1895-03-28	1895-09-20
1897	1897-05-19	1897-10-14
1898	1898-04-16	1898-09-28
1899	1899-04-12	1899-10-22
1900	1900-05-11	1900-10-05
1901	1901-04-26	1901-09-24
1902	1902-04-20	1902-09-07
1904	1904-05-22	1904-09-23
1905	1905-05-01	1905-10-04
1906	1906-04-24	1906-09-25
1907	1907-03-25	1907-09-23
1908	1908-04-13	1908-09-23
1909	1909-05-04	1909-10-06
1910	1910-03-21	1910-10-16
1911	1911-05-09	1911-09-28
1912	1912-05-19	1912-10-05
1913	1913-04-30	1913-09-10
1914	1914-05-24	1914-10-17
1915	1915-04-28	1915-09-07
1916	1916-04-11	1916-10-07
1917	1917-03-30	1917-09-04
1921	1921-04-02	1921-10-08
1922	1922-05-05	1922-10-27
1923	1923-06-01	1923-09-06
1924	1924-04-07	1924-10-01
1926	1926-04-29	1926-09-17
1927	1927-04-26	1927-10-26
1929	1929-04-04	1929-09-25
1934	1934-04-29	1934-10-08
1935	1935-06-14	1935-09-24
1936	1936-04-13	1936-10-12
1937	1937-04-22	1937-10-29
1938	1938-04-14	1938-10-17
1939	1939-04-22	1939-10-06
1940	1940-04-14	1940-10-25
1942	1942-05-26	1942-09-30
1943	1943-03-29	1943-09-03
1944	1944-05-13	1944-08-21
1945	1945-06-22	1945-10-18
1946	1946-04-19	1946-09-27
1947	1947-05-03	1947-10-21
1948	1948-04-17	1948-09-20
1949	1949-04-25	1949-10-07
1950	1950-04-22	1950-10-30
1951	1951-06-16	1951-10-03
1952	1952-05-04	1952-09-30
1953	1953-04-21	1953-10-14
1954	1954-04-06	1954-09-27
1955	1955-04-19	1955-09-18
1956	1956-03-25	1956-10-12
1957	1957-06-03	1957-09-25
1958	1958-05-11	1958-10-15
1959	1959-05-01	1959-09-15
1960	1960-04-22	1960-10-11
1961	1961-05-28	1961-10-17
1962	1962-04-21	1962-10-11
1963	1963-04-01	1963-10-19
1964	1964-04-16	1964-08-19
1965	1965-04-29	1965-08-26
1966	1966-05-04	1966-10-08
1967	1967-03-23	1967-10-03
1968	1968-03-30	1968-09-21
1969	1969-05-26	1969-09-30
1970	1970-05-17	1970-09-30
1971	1971-06-05	1971-10-01
1972	1972-04-06	1972-09-19
1973	1973-05-18	1973-09-02
1974	1974-05-28	1974-10-10
1975	1975-05-17	1975-10-14
1976	1976-05-19	1976-10-01
1977	1977-04-10	1977-09-08
1978	1978-03-31	1978-10-20
1979	1979-05-28	1979-09-30
1980	1980-04-20	1980-10-09
1981	1981-04-25	1981-09-29
1982	1982-06-06	1982-09-10
1983	1983-05-24	1983-09-27
1984	1984-05-31	1984-09-23
1985	1985-04-11	1985-09-18
1986	1986-03-28	1986-09-28
1987	1987-04-19	1987-10-04
1988	1988-04-07	1988-09-26
1989	1989-04-20	1989-10-13
1990	1990-04-22	1990-10-05
1991	1991-04-05	1991-10-01
1992	1992-04-30	1992-10-02
1993	1993-05-14	1993-10-06
1994	1994-04-17	1994-09-29
1995	1995-06-06	1995-10-12
1996	1996-04-11	1996-10-12
1997	1997-05-16	1997-10-06
1998	1998-05-04	1998-09-29
1999	1999-06-04	1999-10-27
2000	2000-05-04	2000-10-18
2001	2001-04-26	2001-10-02
2002	2002-04-14	2002-09-30
2003	2003-04-01	2003-10-22
2004	2004-04-16	2004-09-19
2005	2005-05-19	2005-10-18
2006	2006-04-13	2006-10-07
2007	2007-04-29	2007-10-06
2008	2008-05-25	2008-09-26
2009	2009-04-23	2009-08-24
2010	2010-05-22	2010-10-08
2011	2011-05-08	2011-10-04
2012	2012-03-31	2012-09-19
2013	2013-04-28	2013-09-27
2014	2014-05-07	2014-09-19
2015	2015-03-16	2015-10-11
2016	2016-05-06	2016-09-23
2017	2017-05-07	2017-09-23
2018	2018-04-30	2018-10-03
2019	2019-04-20	2019-09-30
2020	2020-05-01	2020-10-11
2021	2021-04-05	2021-09-28
2022	2022-04-13	2022-10-23
2023	2023-04-11	2023-10-02
2024	2024-04-13	2024-09-29
2025	2025-03-28	2025-10-16
2026	2026-03-19	2026-08-31

Every Fixed Threshold

Fixed thresholds at Genoa 2 W
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	122	122	1939	62
35 C (95 F): Days	118	66	1936	8
40 C (104 F): Days	39	27	1936	1
45 C (113 F): Days	2	3	1936	1
90 F (32.2 C): Days	122	91	1936	26
100 F (37.8 C): Days	79	47	1936	1
110 F (43.3 C): Days	5	8	1936	2
0 C (32 F): Ice days (max	122	77	1978	11
0 C (32 F): Frost days (min	122	174	1907	69
-10 C (14 F): Days with min	122	81	2022	21
-20 C (-4 F): Days with min	121	32	1936	4
-30 C (-22 F): Days with min	35	5	1905	1
20 C (68 F): Tropical nights (min	122	54	1936	34
25 C (77 F): Days with min	28	10	1936	2
10 mm (0.39 in): Days with 10 mm or more rain	119	32	2008	16
25 mm (0.98 in): Days with 25 mm or more rain	119	15	1982	8
50 mm (1.97 in): Days with 50 mm or more rain	79	5	2013	2
100 mm (3.94 in): Days with 100 mm or more rain	7	1	1904	1
10 cm (3.9 in): Days with 10 cm or more snowfall	78	5	1953	2
25 cm (9.8 in): Days with 25 cm or more snowfall	16	2	1983	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

Download the Data

Data for Genoa 2 W 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 2026-10-18. Last revised 18 October 2026 (2026-10-18).

Genoa 2 W Threshold Days by Year (USC00253185)

Key Facts for Genoa 2 W Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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