Ashton 1N Threshold Days by Year (USC00100470)

16 fixed thresholds counted per year at Ashton 1N (USC00100470): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ashton 1N Thresholds

Ashton 1N: days with a maximum temperature at or above 30 C (86 F) in 111 years, most in 1937 with 59.
Ashton 1N: days with a maximum temperature at or below 0 C (32 F) in 111 years, most in 1985 with 105.
Ashton 1N: nights with a minimum temperature at or below 0 C (32 F) in 111 years, most in 1929 with 239.
Ashton 1N: nights with a minimum temperature at or below -10 C (14 F) in 111 years, most in 1944 with 107.
16 fixed thresholds have at least one qualifying day at Ashton 1N.

Days at or above 30 C (86 F)

111 years with a qualifying day

Days per year at Ashton 1N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 59 in 1937.

Days at or above 30 C (86 F) per year at Ashton 1N
Year	Days	Decade average
1903	20	23.5
1904	32	23.5
1906	16	23.5
1907	17	23.5
1908	26	23.5
1909	30	23.5
1910	35	23.4
1911	13	23.4
1912	4	23.4
1913	9	23.4
1915	27	23.4
1916	28	23.4
1917	34	23.4
1918	18	23.4
1919	43	23.4
1920	44	27.3
1921	22	27.3
1922	23	27.3
1923	21	27.3
1924	31	27.3
1925	19	27.3
1926	43	27.3
1927	14	27.3
1928	23	27.3
1929	33	27.3
1930	19	33.9
1931	38	33.9
1932	16	33.9
1933	37	33.9
1934	42	33.9
1935	13	33.9
1936	49	33.9
1937	59	33.9
1938	32	33.9
1939	34	33.9
1940	42	18.5
1941	19	18.5
1942	16	18.5
1943	13	18.5
1944	4	18.5
1945	11	18.5
1946	17	18.5
1947	29	18.5
1948	21	18.5
1949	13	18.5
1950	7	14.4
1951	10	14.4
1952	3	14.4
1953	12	14.4
1954	17	14.4
1955	11	14.4
1956	5	14.4
1957	23	14.4
1958	23	14.4
1959	33	14.4
1960	26	20
1961	44	20
1962	14	20
1963	19	20
1964	15	20
1965	6	20
1966	15	20
1967	24	20
1968	14	20
1969	23	20
1970	20	15.4
1971	25	15.4
1972	8	15.4
1973	15	15.4
1974	20	15.4
1975	10	15.4
1976	14	15.4
1977	10	15.4
1978	16	15.4
1979	16	15.4
1980	10	19.1
1981	25	19.1
1982	16	19.1
1983	19	19.1
1984	7	19.1
1985	24	19.1
1986	16	19.1
1988	38	19.1
1989	17	19.1
1990	29	19.1
1991	13	19.1
1993	1	19.1
1994	33	19.1
1995	7	19.1
1998	39	19.1
1999	12	19.1
2000	30	26.7
2001	35	26.7
2002	19	26.7
2004	17	26.7
2005	24	26.7
2006	35	26.7
2010	20	28.8
2012	36	28.8
2014	21	28.8
2015	24	28.8
2016	31	28.8
2017	37	28.8
2018	34	28.8
2019	27	28.8
2020	30	38.8
2021	50	38.8
2022	56	38.8
2023	20	38.8
2024	35	38.8
2026	42	38.8

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

First to last qualifying date each year at Ashton 1N
Year	First date	Last date
1903	1903-07-13	1903-09-06
1904	1904-06-16	1904-09-08
1906	1906-07-20	1906-08-30
1907	1907-05-19	1907-08-16
1908	1908-06-24	1908-09-07
1909	1909-06-29	1909-08-30
1910	1910-06-11	1910-08-21
1911	1911-07-06	1911-09-01
1912	1912-06-24	1912-08-26
1913	1913-07-09	1913-08-28
1915	1915-06-24	1915-08-31
1916	1916-05-06	1916-09-02
1917	1917-06-27	1917-09-10
1918	1918-06-08	1918-09-21
1919	1919-06-21	1919-09-11
1920	1920-06-07	1920-09-19
1921	1921-06-28	1921-08-30
1922	1922-06-20	1922-08-28
1923	1923-06-12	1923-09-08
1924	1924-05-16	1924-09-04
1925	1925-06-20	1925-08-19
1926	1926-06-06	1926-08-27
1927	1927-06-24	1927-08-05
1928	1928-07-11	1928-08-22
1929	1929-06-25	1929-09-01
1930	1930-06-07	1930-08-24
1931	1931-06-15	1931-09-06
1932	1932-05-17	1932-09-05
1933	1933-06-12	1933-08-17
1934	1934-07-02	1934-09-12
1935	1935-07-12	1935-08-30
1936	1936-05-14	1936-08-29
1937	1937-05-18	1937-09-21
1938	1938-06-28	1938-09-29
1939	1939-04-29	1939-08-25
1940	1940-06-16	1940-08-27
1941	1941-06-22	1941-08-08
1942	1942-06-05	1942-08-24
1943	1943-07-06	1943-08-28
1944	1944-06-30	1944-07-19
1945	1945-07-22	1945-08-24
1946	1946-07-02	1946-08-21
1947	1947-05-08	1947-09-02
1948	1948-06-06	1948-09-13
1949	1949-07-02	1949-08-20
1950	1950-08-31	1950-09-06
1951	1951-07-07	1951-08-02
1952	1952-06-09	1952-09-07
1953	1953-07-09	1953-08-16
1954	1954-06-22	1954-08-30
1955	1955-06-21	1955-09-06
1956	1956-07-08	1956-08-22
1957	1957-06-04	1957-08-20
1958	1958-05-19	1958-09-07
1959	1959-06-06	1959-09-12
1960	1960-05-11	1960-08-14
1961	1961-06-10	1961-08-23
1962	1962-06-25	1962-08-17
1963	1963-07-01	1963-09-11
1964	1964-06-26	1964-08-18
1965	1965-07-15	1965-08-11
1966	1966-06-28	1966-08-25
1967	1967-07-02	1967-09-05
1968	1968-06-18	1968-08-08
1969	1969-06-05	1969-09-09
1970	1970-06-21	1970-08-25
1971	1971-06-21	1971-08-27
1972	1972-07-13	1972-08-11
1973	1973-07-03	1973-08-24
1974	1974-06-13	1974-08-01
1975	1975-07-02	1975-07-28
1976	1976-06-29	1976-09-05
1977	1977-05-31	1977-09-06
1978	1978-07-01	1978-09-04
1979	1979-06-12	1979-09-08
1980	1980-07-21	1980-09-06
1981	1981-06-25	1981-09-17
1982	1982-07-12	1982-08-21
1983	1983-07-06	1983-09-02
1984	1984-06-29	1984-08-09
1985	1985-06-07	1985-08-27
1986	1986-05-28	1986-08-28
1988	1988-06-04	1988-08-26
1989	1989-07-04	1989-08-07
1990	1990-06-24	1990-09-15
1991	1991-07-05	1991-09-01
1993	1993-08-02	1993-08-02
1994	1994-04-21	1994-09-09
1995	1995-07-28	1995-09-03
1998	1998-07-03	1998-09-03
1999	1999-07-13	1999-08-22
2000	2000-07-12	2000-08-21
2001	2001-06-25	2001-09-15
2002	2002-06-25	2002-09-03
2004	2004-07-13	2004-08-17
2005	2005-06-22	2005-09-09
2006	2006-06-07	2006-09-06
2010	2010-06-30	2010-08-27
2012	2012-06-04	2012-08-31
2014	2014-07-02	2014-08-17
2015	2015-06-24	2015-09-25
2016	2016-06-05	2016-09-01
2017	2017-06-05	2017-09-06
2018	2018-07-05	2018-09-07
2019	2019-07-12	2019-09-05
2020	2020-05-29	2020-09-06
2021	2021-06-03	2021-09-09
2022	2022-06-17	2022-09-09
2023	2023-07-09	2023-08-29
2024	2024-06-22	2024-09-08
2026	2026-06-24	2026-08-27

Every Fixed Threshold

Fixed thresholds at Ashton 1N
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	111	59	1937	42
35 C (95 F): Days	38	13	1936	7
90 F (32.2 C): Days	97	33	2022	22
100 F (37.8 C): Days	2	3	1936	3
0 C (32 F): Ice days (max	111	105	1985	17
0 C (32 F): Frost days (min	111	239	1929	101
-10 C (14 F): Days with min	111	107	1944	19
-20 C (-4 F): Days with min	108	38	1932	5
-30 C (-22 F): Days with min	45	5	1962	1
20 C (68 F): Tropical nights (min	2	3	1904	1
10 mm (0.39 in): Days with 10 mm or more rain	105	26	1995	10
25 mm (0.98 in): Days with 25 mm or more rain	59	5	2022	3
50 mm (1.97 in): Days with 50 mm or more rain	8	1	1904	1
10 cm (3.9 in): Days with 10 cm or more snowfall	79	16	2004	3
25 cm (9.8 in): Days with 25 cm or more snowfall	20	10	2004	1
50 cm (19.7 in): Days with 50 cm or more snowfall	3	10	2004	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1903.

Download the Data

Data for Ashton 1N 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Ashton 1N Threshold Days by Year (USC00100470)

Key Facts for Ashton 1N Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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