Norton 9SSE Threshold Days by Year (USC00145856)

20 fixed thresholds counted per year at Norton 9SSE (USC00145856): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Norton 9SSE Thresholds

Norton 9SSE: nights with a minimum temperature at or below 0 C (32 F) in 120 years, most in 1984 with 177.
Norton 9SSE: nights with a minimum temperature at or below -10 C (14 F) in 120 years, most in 1978 with 61.
Norton 9SSE: nights with a minimum temperature at or above 20 C (68 F) in 120 years, most in 1936 with 50.
Norton 9SSE: days with a maximum temperature at or above 30 C (86 F) in 118 years, most in 1956 with 118.
20 fixed thresholds have at least one qualifying day at Norton 9SSE.

Days at or above 30 C (86 F)

118 years with a qualifying day

Days per year at Norton 9SSE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 118 in 1956.

Days at or above 30 C (86 F) per year at Norton 9SSE
Year	Days	Decade average
1897	77	77
1904	64	76.2
1905	72	76.2
1906	70	76.2
1907	86	76.2
1908	73	76.2
1909	92	76.2
1910	91	80.8
1911	102	80.8
1912	69	80.8
1913	95	80.8
1914	80	80.8
1915	27	80.8
1916	85	80.8
1917	88	80.8
1918	99	80.8
1919	72	80.8
1920	74	78.5
1921	106	78.5
1922	88	78.5
1924	67	78.5
1926	96	78.5
1927	68	78.5
1928	54	78.5
1929	75	78.5
1930	72	96.5
1931	95	96.5
1932	94	96.5
1933	102	96.5
1934	111	96.5
1935	77	96.5
1936	99	96.5
1937	100	96.5
1938	107	96.5
1939	108	96.5
1940	91	77.5
1941	81	77.5
1942	78	77.5
1943	85	77.5
1944	65	77.5
1945	66	77.5
1946	73	77.5
1947	83	77.5
1948	91	77.5
1949	62	77.5
1950	60	86.3
1951	51	86.3
1952	95	86.3
1953	99	86.3
1954	105	86.3
1955	98	86.3
1956	118	86.3
1957	73	86.3
1958	73	86.3
1959	91	86.3
1960	67	77.2
1961	66	77.2
1962	71	77.2
1963	102	77.2
1964	88	77.2
1965	68	77.2
1966	82	77.2
1967	62	77.2
1968	96	77.2
1969	70	77.2
1970	99	87.3
1971	92	87.3
1972	83	87.3
1973	81	87.3
1974	77	87.3
1975	81	87.3
1976	89	87.3
1977	86	87.3
1978	98	87.3
1979	87	87.3
1980	105	84.6
1981	69	84.6
1982	66	84.6
1983	92	84.6
1984	90	84.6
1985	73	84.6
1986	90	84.6
1987	90	84.6
1988	97	84.6
1989	74	84.6
1990	82	70.2
1991	91	70.2
1992	51	70.2
1993	51	70.2
1994	84	70.2
1995	66	70.2
1996	55	70.2
1997	80	70.2
1998	83	70.2
1999	59	70.2
2000	91	84.7
2001	83	84.7
2002	108	84.7
2003	88	84.7
2004	85	84.7
2005	87	84.7
2006	92	84.7
2007	86	84.7
2008	68	84.7
2009	59	84.7
2010	84	86.1
2011	88	86.1
2012	115	86.1
2013	82	86.1
2014	84	86.1
2015	88	86.1
2016	82	86.1
2017	84	86.1
2018	79	86.1
2019	75	86.1
2020	104	86.3
2025	68	86.3
2026	87	86.3

For each year, a bar from the first to the last day at Norton 9SSE meeting 30 C (86 F).

First to last qualifying date each year at Norton 9SSE
Year	First date	Last date
1897	1897-05-19	1897-10-14
1904	1904-05-22	1904-10-09
1905	1905-04-08	1905-10-08
1906	1906-04-11	1906-10-12
1907	1907-03-21	1907-10-06
1908	1908-03-25	1908-10-16
1909	1909-04-26	1909-10-06
1910	1910-03-21	1910-10-16
1911	1911-05-08	1911-09-27
1912	1912-05-02	1912-10-05
1913	1913-04-06	1913-10-03
1914	1914-04-14	1914-10-17
1915	1915-05-13	1915-10-30
1916	1916-05-04	1916-10-07
1917	1917-02-25	1917-10-02
1918	1918-05-02	1918-10-16
1919	1919-04-22	1919-10-02
1920	1920-05-22	1920-10-12
1921	1921-03-18	1921-10-24
1922	1922-05-05	1922-10-27
1924	1924-04-15	1924-10-01
1926	1926-04-17	1926-10-08
1927	1927-04-26	1927-10-23
1928	1928-04-03	1928-10-11
1929	1929-04-03	1929-09-25
1930	1930-04-09	1930-09-30
1931	1931-04-07	1931-10-10
1932	1932-04-05	1932-10-12
1933	1933-05-16	1933-09-25
1934	1934-04-29	1934-10-29
1935	1935-03-15	1935-10-15
1936	1936-04-13	1936-10-19
1937	1937-04-22	1937-10-29
1938	1938-05-26	1938-10-16
1939	1939-04-23	1939-10-06
1940	1940-04-14	1940-10-25
1941	1941-05-13	1941-09-20
1942	1942-04-04	1942-10-09
1943	1943-03-29	1943-10-19
1944	1944-05-12	1944-10-13
1945	1945-04-09	1945-10-18
1946	1946-03-31	1946-09-26
1947	1947-05-03	1947-10-21
1948	1948-04-17	1948-10-05
1949	1949-04-25	1949-09-21
1950	1950-04-22	1950-10-31
1951	1951-04-28	1951-10-03
1952	1952-04-27	1952-10-24
1953	1953-04-21	1953-10-10
1954	1954-04-06	1954-10-03
1955	1955-04-26	1955-10-11
1956	1956-03-25	1956-10-12
1957	1957-06-05	1957-09-30
1958	1958-05-11	1958-10-19
1959	1959-04-30	1959-10-25
1960	1960-04-21	1960-10-05
1961	1961-04-19	1961-10-17
1962	1962-04-19	1962-10-14
1963	1963-03-28	1963-10-15
1964	1964-04-16	1964-10-01
1965	1965-04-20	1965-10-09
1966	1966-03-31	1966-10-13
1967	1967-03-23	1967-10-12
1968	1968-03-28	1968-10-29
1969	1969-05-26	1969-10-02
1970	1970-04-27	1970-10-05
1971	1971-03-31	1971-10-10
1972	1972-03-06	1972-10-10
1973	1973-05-18	1973-10-08
1974	1974-05-18	1974-10-10
1975	1975-05-04	1975-10-22
1976	1976-03-25	1976-10-01
1977	1977-04-10	1977-10-26
1978	1978-03-31	1978-10-20
1979	1979-04-19	1979-10-11
1980	1980-04-20	1980-11-07
1981	1981-04-26	1981-09-30
1982	1982-06-15	1982-10-06
1983	1983-04-26	1983-10-28
1984	1984-05-25	1984-09-24
1985	1985-04-12	1985-10-08
1986	1986-03-29	1986-09-27
1987	1987-04-18	1987-10-05
1988	1988-03-28	1988-10-15
1989	1989-03-11	1989-10-15
1990	1990-04-23	1990-10-06
1991	1991-04-06	1991-10-23
1992	1992-04-30	1992-10-22
1993	1993-05-15	1993-10-07
1994	1994-03-18	1994-10-01
1995	1995-04-15	1995-10-17
1996	1996-04-03	1996-10-13
1997	1997-04-19	1997-10-11
1998	1998-05-14	1998-09-29
1999	1999-04-21	1999-11-14
2000	2000-04-07	2000-10-02
2001	2001-05-02	2001-10-10
2002	2002-04-02	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	2007-10-21
2008	2008-05-19	2008-09-29
2009	2009-04-23	2009-10-01
2010	2010-05-23	2010-10-15
2011	2011-04-03	2011-10-05
2012	2012-03-15	2012-10-21
2013	2013-04-29	2013-09-28
2014	2014-04-10	2014-10-27
2015	2015-03-17	2015-10-21
2016	2016-05-07	2016-11-01
2017	2017-03-20	2017-09-24
2018	2018-05-06	2018-10-04
2019	2019-04-21	2019-10-19
2020	2020-04-28	2020-11-05
2025	2025-03-29	2025-10-12
2026	2026-03-20	2026-08-31

Every Fixed Threshold

Fixed thresholds at Norton 9SSE
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	118	118	1956	87
35 C (95 F): Days	118	72	1936	24
40 C (104 F): Days	80	37	1936	6
45 C (113 F): Days	5	3	1936	2
90 F (32.2 C): Days	118	98	1934	57
100 F (37.8 C): Days	112	50	1936	9
110 F (43.3 C): Days	20	11	1936	5
0 C (32 F): Ice days (max	118	53	1978	10
0 C (32 F): Frost days (min	120	177	1984	75
-10 C (14 F): Days with min	120	61	1978	18
-20 C (-4 F): Days with min	111	17	1985	3
-30 C (-22 F): Days with min	4	2	1905	2
20 C (68 F): Tropical nights (min	120	50	1936	19
25 C (77 F): Days with min	25	11	1934	1
10 mm (0.39 in): Days with 10 mm or more rain	111	29	1909	11
25 mm (0.98 in): Days with 25 mm or more rain	110	11	1915	1
50 mm (1.97 in): Days with 50 mm or more rain	53	4	1951	2
100 mm (3.94 in): Days with 100 mm or more rain	5	2	1953	1
10 cm (3.9 in): Days with 10 cm or more snowfall	75	7	1960	1
25 cm (9.8 in): Days with 25 cm or more snowfall	12	2	1997	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1897.

Download the Data

Data for Norton 9SSE 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).

Norton 9SSE Threshold Days by Year (USC00145856)

Key Facts for Norton 9SSE Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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