Ashbourne Threshold Days by Year

4 fixed thresholds counted per year at Ashbourne (ASN00023701): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ashbourne Thresholds

Ashbourne: days with 10 mm (0.39 in) or more of precipitation in 85 years, most in 1942 with 38.
Ashbourne: days with 25 mm (0.98 in) or more of precipitation in 83 years, most in 1917 with 9.
Ashbourne: days with 50 mm (1.97 in) or more of precipitation in 21 years, most in 1946 with 3.
Ashbourne: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1941 with 1.
4 fixed thresholds have at least one qualifying day at Ashbourne.

Days with 10 mm (0.39 in) or more of precipitation

85 years with a qualifying day

Days per year at Ashbourne with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 38 in 1942.

Days with 10 mm (0.39 in) or more of precipitation per year at Ashbourne
Year	Days	Decade average
1888	13	17.5
1889	22	17.5
1890	31	23.9
1891	14	23.9
1893	28	23.9
1894	28	23.9
1896	20	23.9
1897	21	23.9
1898	25	23.9
1900	24	21.8
1901	16	21.8
1902	15	21.8
1903	28	21.8
1904	22	21.8
1905	22	21.8
1906	26	21.8
1907	16	21.8
1908	20	21.8
1909	29	21.8
1910	30	21.1
1911	21	21.1
1912	17	21.1
1913	15	21.1
1914	13	21.1
1915	27	21.1
1916	23	21.1
1917	32	21.1
1918	13	21.1
1919	20	21.1
1920	23	21.6
1921	24	21.6
1922	24	21.6
1924	21	21.6
1925	18	21.6
1927	17	21.6
1928	28	21.6
1929	18	21.6
1930	16	19.2
1931	26	19.2
1932	21	19.2
1933	19	19.2
1934	16	19.2
1936	21	19.2
1937	20	19.2
1938	10	19.2
1939	24	19.2
1940	18	19.4
1941	14	19.4
1942	38	19.4
1943	20	19.4
1944	13	19.4
1945	14	19.4
1946	21	19.4
1947	24	19.4
1948	17	19.4
1949	15	19.4
1950	15	19.5
1951	22	19.5
1952	20	19.5
1953	21	19.5
1954	12	19.5
1955	31	19.5
1956	24	19.5
1957	16	19.5
1958	21	19.5
1959	13	19.5
1960	23	17.5
1961	13	17.5
1962	20	17.5
1963	18	17.5
1964	24	17.5
1965	14	17.5
1966	20	17.5
1967	6	17.5
1968	29	17.5
1969	8	17.5
1970	24	24.8
1971	28	24.8
1972	19	24.8
1973	28	24.8
1980	16	17.6
1981	26	17.6
1982	11	17.6
1983	18	17.6
1984	17	17.6

For each year, a bar from the first to the last day at Ashbourne meeting 10 mm (0.39 in).

First to last qualifying date each year at Ashbourne
Year	First date	Last date
1888	1888-05-03	1888-09-23
1889	1889-01-03	1889-11-17
1890	1890-01-27	1890-11-14
1891	1891-04-11	1891-12-16
1893	1893-04-02	1893-11-08
1894	1894-01-13	1894-12-23
1896	1896-01-13	1896-12-28
1897	1897-01-09	1897-11-01
1898	1898-04-03	1898-11-29
1900	1900-03-14	1900-11-17
1901	1901-04-03	1901-12-31
1902	1902-03-25	1902-12-17
1903	1903-01-21	1903-12-11
1904	1904-01-03	1904-11-02
1905	1905-01-03	1905-10-28
1906	1906-03-23	1906-11-22
1907	1907-04-05	1907-11-23
1908	1908-02-08	1908-10-16
1909	1909-02-27	1909-11-13
1910	1910-03-05	1910-12-23
1911	1911-01-31	1911-12-12
1912	1912-03-09	1912-11-17
1913	1913-02-13	1913-12-25
1914	1914-03-12	1914-11-24
1915	1915-04-11	1915-10-01
1916	1916-03-26	1916-12-13
1917	1917-01-18	1917-10-23
1918	1918-04-26	1918-10-12
1919	1919-02-16	1919-12-17
1920	1920-03-06	1920-11-12
1921	1921-03-01	1921-12-03
1922	1922-01-05	1922-12-30
1924	1924-02-16	1924-11-07
1925	1925-02-06	1925-11-20
1927	1927-02-03	1927-12-02
1928	1928-01-27	1928-11-03
1929	1929-01-30	1929-12-28
1930	1930-02-21	1930-11-04
1931	1931-01-24	1931-10-16
1932	1932-02-06	1932-10-12
1933	1933-01-20	1933-12-01
1934	1934-01-06	1934-11-08
1936	1936-01-07	1936-12-17
1937	1937-01-19	1937-12-11
1938	1938-04-17	1938-11-27
1939	1939-02-17	1939-11-05
1940	1940-01-05	1940-12-20
1941	1941-01-24	1941-10-26
1942	1942-01-20	1942-11-22
1943	1943-02-17	1943-12-18
1944	1944-04-02	1944-11-12
1945	1945-03-05	1945-12-16
1946	1946-01-17	1946-12-27
1947	1947-02-15	1947-12-23
1948	1948-04-11	1948-12-26
1949	1949-02-20	1949-11-11
1950	1950-04-05	1950-12-20
1951	1951-02-22	1951-12-15
1952	1952-01-25	1952-11-27
1953	1953-02-05	1953-11-25
1954	1954-01-27	1954-12-12
1955	1955-02-09	1955-12-03
1956	1956-01-20	1956-10-18
1957	1957-04-10	1957-11-18
1958	1958-05-14	1958-10-18
1959	1959-02-13	1959-12-26
1960	1960-02-01	1960-12-04
1961	1961-04-05	1961-11-17
1962	1962-01-17	1962-12-29
1963	1963-01-13	1963-10-27
1964	1964-04-07	1964-11-18
1965	1965-04-16	1965-11-25
1966	1966-03-16	1966-12-03
1967	1967-02-23	1967-12-30
1968	1968-01-20	1968-11-02
1969	1969-02-09	1969-12-02
1970	1970-01-01	1970-12-29
1971	1971-03-10	1971-12-10
1972	1972-01-07	1972-10-15
1973	1973-02-06	1973-12-15
1980	1980-04-18	1980-12-03
1981	1981-01-27	1981-10-28
1982	1982-01-25	1982-09-29
1983	1983-03-01	1983-12-31
1984	1984-01-15	1984-11-10

Every Fixed Threshold

Fixed thresholds at Ashbourne
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	85	38	1942	17
25 mm (0.98 in): Days with 25 mm or more rain	83	9	1917	1
50 mm (1.97 in): Days with 50 mm or more rain	21	3	1946	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1941	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1888.

Download the Data

Data for Ashbourne 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Ashbourne Threshold Days by Year

Key Facts for Ashbourne Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

Related