Sussex Threshold Days by Year (CA008105200)

16 fixed thresholds counted per year at Sussex (CA008105200): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sussex Thresholds

Sussex: days with a maximum temperature at or below 0 C (32 F) in 86 years, most in 1908 with 108.
Sussex: nights with a minimum temperature at or below 0 C (32 F) in 86 years, most in 1956 with 200.
Sussex: nights with a minimum temperature at or below -10 C (14 F) in 86 years, most in 1904 with 91.
Sussex: nights with a minimum temperature at or below -20 C (-4 F) in 86 years, most in 1904 with 41.
16 fixed thresholds have at least one qualifying day at Sussex.

Days at or above 30 C (86 F)

75 years with a qualifying day

Days per year at Sussex with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 23 in 1937.

Days at or above 30 C (86 F) per year at Sussex
Year	Days	Decade average
1898	2	1.5
1899	1	1.5
1900	5	5
1901	9	5
1905	2	5
1906	7	5
1907	1	5
1908	6	5
1909	5	5
1911	9	4
1912	8	4
1913	1	4
1914	3	4
1916	4	4
1917	1	4
1919	2	4
1920	4	3.4
1921	12	3.4
1922	1	3.4
1923	2	3.4
1924	3	3.4
1925	1	3.4
1927	1	3.4
1928	3	3.4
1930	7	8.7
1931	5	8.7
1932	3	8.7
1933	6	8.7
1934	2	8.7
1935	14	8.7
1936	3	8.7
1937	23	8.7
1938	7	8.7
1939	17	8.7
1940	16	12.5
1941	4	12.5
1942	13	12.5
1943	7	12.5
1944	22	12.5
1945	13	12.5
1946	7	12.5
1947	17	12.5
1948	9	12.5
1949	17	12.5
1950	1	5.2
1951	2	5.2
1952	18	5.2
1953	4	5.2
1954	1	5.2
1955	12	5.2
1956	2	5.2
1957	4	5.2
1958	1	5.2
1959	7	5.2
1960	8	4.9
1961	5	4.9
1962	2	4.9
1963	7	4.9
1965	2	4.9
1968	5	4.9
1969	5	4.9
1970	10	6.2
1971	4	6.2
1972	2	6.2
1973	2	6.2
1974	4	6.2
1975	10	6.2
1976	5	6.2
1977	9	6.2
1978	10	6.2
1979	6	6.2
1980	4	3.8
1981	2	3.8
1982	4	3.8
1983	5	3.8

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

First to last qualifying date each year at Sussex
Year	First date	Last date
1898	1898-07-03	1898-07-28
1899	1899-08-19	1899-08-19
1900	1900-05-30	1900-09-03
1901	1901-06-26	1901-09-07
1905	1905-07-09	1905-08-11
1906	1906-08-06	1906-08-22
1907	1907-07-18	1907-07-18
1908	1908-06-11	1908-07-23
1909	1909-06-25	1909-08-08
1911	1911-05-22	1911-08-05
1912	1912-06-26	1912-07-11
1913	1913-07-05	1913-07-05
1914	1914-05-27	1914-09-23
1916	1916-07-12	1916-08-19
1917	1917-07-23	1917-07-23
1919	1919-06-04	1919-07-05
1920	1920-08-05	1920-08-28
1921	1921-07-02	1921-09-03
1922	1922-06-08	1922-06-08
1923	1923-06-19	1923-06-20
1924	1924-07-04	1924-07-08
1925	1925-06-04	1925-06-04
1927	1927-07-27	1927-07-27
1928	1928-08-14	1928-08-16
1930	1930-06-04	1930-08-28
1931	1931-05-29	1931-07-29
1932	1932-05-17	1932-08-06
1933	1933-06-10	1933-08-23
1934	1934-07-06	1934-07-15
1935	1935-07-05	1935-08-20
1936	1936-06-06	1936-06-14
1937	1937-05-30	1937-09-04
1938	1938-06-22	1938-08-07
1939	1939-07-04	1939-09-16
1940	1940-05-27	1940-09-01
1941	1941-06-21	1941-07-25
1942	1942-06-10	1942-09-18
1943	1943-06-25	1943-07-14
1944	1944-05-31	1944-08-17
1945	1945-06-14	1945-09-08
1946	1946-06-23	1946-09-19
1947	1947-06-28	1947-09-12
1948	1948-06-30	1948-09-07
1949	1949-06-16	1949-08-28
1950	1950-05-25	1950-05-25
1951	1951-07-15	1951-09-13
1952	1952-07-02	1952-08-28
1953	1953-07-03	1953-08-29
1954	1954-06-22	1954-06-22
1955	1955-06-19	1955-08-22
1956	1956-06-15	1956-06-16
1957	1957-06-11	1957-06-24
1958	1958-07-24	1958-07-24
1959	1959-05-27	1959-08-15
1960	1960-05-30	1960-09-08
1961	1961-07-21	1961-09-11
1962	1962-06-15	1962-06-16
1963	1963-06-25	1963-07-29
1965	1965-06-23	1965-09-22
1968	1968-07-09	1968-09-21
1969	1969-06-28	1969-09-01
1970	1970-07-23	1970-08-16
1971	1971-06-30	1971-07-10
1972	1972-05-28	1972-07-13
1973	1973-07-09	1973-08-31
1974	1974-08-12	1974-08-22
1975	1975-06-23	1975-08-11
1976	1976-06-23	1976-08-22
1977	1977-05-22	1977-08-29
1978	1978-05-29	1978-08-23
1979	1979-06-16	1979-08-05
1980	1980-06-25	1980-08-01
1981	1981-07-08	1981-08-01
1982	1982-07-08	1982-07-19
1983	1983-06-21	1983-09-06

Every Fixed Threshold

Fixed thresholds at Sussex
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	75	23	1937	5
35 C (95 F): Days	8	7	1944	1
90 F (32.2 C): Days	38	17	1944	5
0 C (32 F): Ice days (max	86	108	1908	54
0 C (32 F): Frost days (min	86	200	1956	152
-10 C (14 F): Days with min	86	91	1904	57
-20 C (-4 F): Days with min	86	41	1904	16
-30 C (-22 F): Days with min	59	12	1934	3
-40 C (-40 F): Days with min	1	1	1957	1
20 C (68 F): Tropical nights (min	26	4	1947	1
10 mm (0.39 in): Days with 10 mm or more rain	81	52	1981	38
25 mm (0.98 in): Days with 25 mm or more rain	81	17	1981	9
50 mm (1.97 in): Days with 50 mm or more rain	49	4	1906	1
10 cm (3.9 in): Days with 10 cm or more snowfall	83	14	1967	3
25 cm (9.8 in): Days with 25 cm or more snowfall	47	3	1923	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1975	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1898.

Download the Data

Data for Sussex 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 Threshold Days by Year (CA008105200)

Key Facts for Sussex Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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