Sussex 1 NW Threshold Days by Year (USC00288644)

19 fixed thresholds counted per year at Sussex 1 NW (USC00288644): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sussex 1 NW Thresholds

Sussex 1 NW: days with a maximum temperature at or above 30 C (86 F) in 106 years, most in 1936 with 69.
Sussex 1 NW: days with a maximum temperature at or below 0 C (32 F) in 106 years, most in 1904 with 61.
Sussex 1 NW: days with 10 mm (0.39 in) or more of precipitation in 106 years, most in 1972 with 53.
Sussex 1 NW: days with 25 mm (0.98 in) or more of precipitation in 106 years, most in 1975 with 20.
19 fixed thresholds have at least one qualifying day at Sussex 1 NW.

Days at or above 30 C (86 F)

106 years with a qualifying day

Days per year at Sussex 1 NW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 69 in 1936.

Days at or above 30 C (86 F) per year at Sussex 1 NW
Year	Days	Decade average
1895	54	31.4
1896	32	31.4
1897	17	31.4
1898	30	31.4
1899	24	31.4
1900	50	22.7
1901	39	22.7
1902	12	22.7
1903	15	22.7
1904	12	22.7
1905	21	22.7
1906	17	22.7
1907	17	22.7
1908	27	22.7
1909	17	22.7
1910	25	30.8
1911	39	30.8
1912	31	30.8
1913	35	30.8
1914	30	30.8
1915	25	30.8
1924	31	31.8
1927	20	31.8
1928	34	31.8
1929	42	31.8
1930	44	47.9
1931	42	47.9
1932	63	47.9
1933	40	47.9
1935	45	47.9
1936	69	47.9
1937	45	47.9
1938	35	47.9
1940	33	43.9
1941	51	43.9
1942	27	43.9
1943	51	43.9
1944	53	43.9
1945	64	43.9
1946	38	43.9
1947	41	43.9
1948	34	43.9
1949	47	43.9
1950	20	34.1
1951	9	34.1
1952	34	34.1
1955	56	34.1
1956	24	34.1
1957	40	34.1
1958	32	34.1
1959	58	34.1
1960	7	25.7
1961	29	25.7
1962	22	25.7
1963	20	25.7
1964	38	25.7
1966	49	25.7
1967	18	25.7
1968	27	25.7
1969	21	25.7
1970	31	24.5
1971	21	24.5
1972	24	24.5
1973	31	24.5
1974	17	24.5
1975	23	24.5
1976	21	24.5
1977	33	24.5
1978	24	24.5
1979	20	24.5
1980	43	29.5
1981	20	29.5
1982	14	29.5
1983	51	29.5
1984	22	29.5
1985	14	29.5
1986	19	29.5
1987	41	29.5
1988	48	29.5
1989	23	29.5
1990	26	35.8
1991	55	35.8
1992	19	35.8
1993	39	35.8
1995	36	35.8
1996	19	35.8
1997	33	35.8
1999	59	35.8
2000	16	27.2
2001	40	27.2
2002	48	27.2
2003	23	27.2
2009	9	27.2
2010	47	35.1
2011	21	35.1
2012	38	35.1
2013	32	35.1
2014	26	35.1
2015	36	35.1
2016	55	35.1
2017	28	35.1
2018	37	35.1
2019	31	35.1
2020	33	30.7
2021	23	30.7
2022	36	30.7

For each year, a bar from the first to the last day at Sussex 1 NW meeting 30 C (86 F).

First to last qualifying date each year at Sussex 1 NW
Year	First date	Last date
1895	1895-05-04	1895-09-26
1896	1896-04-16	1896-09-11
1897	1897-06-25	1897-10-16
1898	1898-06-12	1898-09-07
1899	1899-05-01	1899-08-22
1900	1900-05-13	1900-10-06
1901	1901-05-24	1901-09-07
1902	1902-05-23	1902-09-08
1903	1903-04-30	1903-07-26
1904	1904-05-13	1904-08-15
1905	1905-03-29	1905-08-24
1906	1906-05-17	1906-09-19
1907	1907-05-14	1907-08-13
1908	1908-05-24	1908-09-19
1909	1909-05-15	1909-08-25
1910	1910-06-20	1910-09-06
1911	1911-05-11	1911-08-28
1912	1912-05-21	1912-09-11
1913	1913-04-25	1913-09-04
1914	1914-05-19	1914-09-02
1915	1915-04-25	1915-09-17
1924	1924-06-18	1924-09-02
1927	1927-04-20	1927-10-02
1928	1928-05-04	1928-10-12
1929	1929-04-07	1929-09-10
1930	1930-05-05	1930-09-26
1931	1931-05-28	1931-09-23
1932	1932-05-16	1932-09-22
1933	1933-06-04	1933-09-27
1935	1935-04-27	1935-09-12
1936	1936-04-30	1936-09-23
1937	1937-05-22	1937-09-04
1938	1938-04-28	1938-10-17
1940	1940-06-03	1940-09-21
1941	1941-04-15	1941-10-06
1942	1942-04-26	1942-09-17
1943	1943-05-08	1943-09-07
1944	1944-05-04	1944-09-03
1945	1945-03-17	1945-09-29
1946	1946-05-25	1946-10-06
1947	1947-05-24	1947-10-23
1948	1948-05-11	1948-09-29
1949	1949-05-05	1949-10-10
1950	1950-06-06	1950-08-26
1951	1951-05-16	1951-09-12
1952	1952-06-04	1952-09-13
1955	1955-05-05	1955-08-22
1956	1956-05-13	1956-09-05
1957	1957-04-28	1957-09-14
1958	1958-07-01	1958-09-27
1959	1959-05-08	1959-10-07
1960	1960-04-24	1960-09-02
1961	1961-06-03	1961-09-15
1962	1962-04-28	1962-09-02
1963	1963-05-10	1963-10-28
1964	1964-05-08	1964-09-24
1966	1966-06-05	1966-09-03
1967	1967-06-04	1967-08-23
1968	1968-06-08	1968-09-26
1969	1969-05-30	1969-09-02
1970	1970-05-11	1970-09-27
1971	1971-05-20	1971-09-07
1972	1972-05-25	1972-09-18
1973	1973-06-06	1973-09-06
1974	1974-05-18	1974-08-15
1975	1975-05-21	1975-08-27
1976	1976-04-18	1976-09-15
1977	1977-04-13	1977-09-06
1978	1978-05-31	1978-08-30
1979	1979-05-10	1979-08-11
1980	1980-05-06	1980-09-23
1981	1981-05-26	1981-09-13
1982	1982-05-21	1982-09-13
1983	1983-06-12	1983-09-21
1984	1984-05-23	1984-08-17
1985	1985-04-22	1985-09-08
1986	1986-05-19	1986-10-01
1987	1987-05-11	1987-08-20
1988	1988-05-30	1988-08-17
1989	1989-05-20	1989-09-12
1990	1990-04-27	1990-09-03
1991	1991-04-08	1991-09-18
1992	1992-05-22	1992-09-17
1993	1993-05-10	1993-09-16
1995	1995-06-19	1995-09-08
1996	1996-05-19	1996-09-04
1997	1997-06-11	1997-08-12
1999	1999-05-30	1999-09-10
2000	2000-05-06	2000-09-02
2001	2001-04-22	2001-09-13
2002	2002-04-16	2002-09-10
2003	2003-04-16	2003-08-22
2009	2009-04-26	2009-08-22
2010	2010-04-08	2010-09-08
2011	2011-05-27	2011-08-09
2012	2012-04-17	2012-09-08
2013	2013-05-22	2013-09-12
2014	2014-05-27	2014-09-07
2015	2015-05-05	2015-09-10
2016	2016-05-26	2016-09-24
2017	2017-04-12	2017-09-28
2018	2018-05-03	2018-09-17
2019	2019-06-27	2019-10-03
2020	2020-05-27	2020-08-28
2021	2021-04-29	2021-08-28
2022	2022-05-22	2022-08-31

Every Fixed Threshold

Fixed thresholds at Sussex 1 NW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	106	69	1936	36
35 C (95 F): Days	62	18	1999	1
40 C (104 F): Days	1	2	1936	2
90 F (32.2 C): Days	102	41	1936	16
100 F (37.8 C): Days	11	4	1936	1
0 C (32 F): Ice days (max	106	61	1904	34
0 C (32 F): Frost days (min	105	181	1967	129
-10 C (14 F): Days with min	105	66	1970	37
-20 C (-4 F): Days with min	79	16	1963	3
-30 C (-22 F): Days with min	5	2	1961	2
20 C (68 F): Tropical nights (min	99	27	1901	11
25 C (77 F): Days with min	3	5	1896	1
10 mm (0.39 in): Days with 10 mm or more rain	106	53	1972	32
25 mm (0.98 in): Days with 25 mm or more rain	106	20	1975	9
50 mm (1.97 in): Days with 50 mm or more rain	83	9	2011	3
100 mm (3.94 in): Days with 100 mm or more rain	11	2	1903	1
10 cm (3.9 in): Days with 10 cm or more snowfall	79	8	1945	2
25 cm (9.8 in): Days with 25 cm or more snowfall	28	2	1906	1
50 cm (19.7 in): Days with 50 cm or more snowfall	5	1	1915	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1895.

Download the Data

Data for Sussex 1 NW 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).

Sussex 1 NW Threshold Days by Year (USC00288644)

Key Facts for Sussex 1 NW Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related