Killora (Grasmere) Threshold Days by Year (ASN00094026)

4 fixed thresholds counted per year at Killora (Grasmere) (ASN00094026): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Killora (Grasmere) Thresholds

Killora (Grasmere): days with 10 mm (0.39 in) or more of precipitation in 91 years, most in 1944 with 28.
Killora (Grasmere): days with 25 mm (0.98 in) or more of precipitation in 81 years, most in 1970 with 9.
Killora (Grasmere): days with 50 mm (1.97 in) or more of precipitation in 41 years, most in 1938 with 5.
Killora (Grasmere): days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1941 with 1.
4 fixed thresholds have at least one qualifying day at Killora (Grasmere).

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

91 years with a qualifying day

Days per year at Killora (Grasmere) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 28 in 1944.

Days with 10 mm (0.39 in) or more of precipitation per year at Killora (Grasmere)
Year	Days	Decade average
1915	10	16
1916	25	16
1917	17	16
1918	19	16
1919	9	16
1920	13	16.2
1921	11	16.2
1922	17	16.2
1923	23	16.2
1924	22	16.2
1925	15	16.2
1926	20	16.2
1927	12	16.2
1928	15	16.2
1929	14	16.2
1930	13	19.9
1931	25	19.9
1933	15	19.9
1934	19	19.9
1935	20	19.9
1936	14	19.9
1937	22	19.9
1938	24	19.9
1939	27	19.9
1940	13	19.1
1941	25	19.1
1942	22	19.1
1943	16	19.1
1944	28	19.1
1945	11	19.1
1946	21	19.1
1947	27	19.1
1948	13	19.1
1949	15	19.1
1950	15	17.7
1951	11	17.7
1952	22	17.7
1953	21	17.7
1954	10	17.7
1955	15	17.7
1956	25	17.7
1957	13	17.7
1958	27	17.7
1959	18	17.7
1960	14	13.6
1961	15	13.6
1962	12	13.6
1963	13	13.6
1964	17	13.6
1965	12	13.6
1966	15	13.6
1967	12	13.6
1968	8	13.6
1969	18	13.6
1970	20	17.5
1971	23	17.5
1972	9	17.5
1973	18	17.5
1974	21	17.5
1975	24	17.5
1976	24	17.5
1977	12	17.5
1978	15	17.5
1979	9	17.5
1980	12	14.4
1981	15	14.4
1982	9	14.4
1986	18	14.4
1987	8	14.4
1988	20	14.4
1989	19	14.4
1990	17	13.1
1991	15	13.1
1992	13	13.1
1993	13	13.1
1994	11	13.1
1995	12	13.1
1996	17	13.1
1997	11	13.1
1998	13	13.1
1999	9	13.1
2000	12	14.3
2001	16	14.3
2002	12	14.3
2003	15	14.3
2004	16	14.3
2005	17	14.3
2006	6	14.3
2007	15	14.3
2008	11	14.3
2009	23	14.3

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

First to last qualifying date each year at Killora (Grasmere)
Year	First date	Last date
1915	1915-03-14	1915-11-24
1916	1916-01-18	1916-12-30
1917	1917-01-03	1917-12-05
1918	1918-01-09	1918-12-24
1919	1919-01-07	1919-10-02
1920	1920-01-26	1920-12-17
1921	1921-01-02	1921-08-05
1922	1922-01-05	1922-12-23
1923	1923-01-06	1923-12-05
1924	1924-01-12	1924-11-08
1925	1925-01-28	1925-12-26
1926	1926-01-14	1926-12-13
1927	1927-02-19	1927-12-29
1928	1928-01-24	1928-12-17
1929	1929-01-10	1929-12-21
1930	1930-02-19	1930-12-27
1931	1931-01-23	1931-11-20
1933	1933-01-05	1933-12-14
1934	1934-01-09	1934-12-30
1935	1935-01-04	1935-12-21
1936	1936-01-04	1936-12-21
1937	1937-01-02	1937-12-26
1938	1938-01-02	1938-12-11
1939	1939-01-14	1939-12-24
1940	1940-01-06	1940-12-03
1941	1941-01-04	1941-12-06
1942	1942-01-06	1942-12-24
1943	1943-02-02	1943-12-04
1944	1944-01-03	1944-12-22
1945	1945-01-17	1945-12-27
1946	1946-02-19	1946-12-08
1947	1947-02-17	1947-12-22
1948	1948-03-28	1948-12-28
1949	1949-01-04	1949-12-19
1950	1950-02-16	1950-12-20
1951	1951-01-05	1951-12-14
1952	1952-01-14	1952-11-03
1953	1953-01-15	1953-12-08
1954	1954-01-28	1954-11-21
1955	1955-02-19	1955-12-28
1956	1956-01-12	1956-11-30
1957	1957-02-08	1957-11-26
1958	1958-02-01	1958-12-17
1959	1959-01-07	1959-12-27
1960	1960-01-23	1960-09-25
1961	1961-02-25	1961-12-09
1962	1962-01-26	1962-09-29
1963	1963-01-17	1963-11-08
1964	1964-02-01	1964-12-14
1965	1965-01-11	1965-12-02
1966	1966-02-24	1966-12-16
1967	1967-07-01	1967-12-19
1968	1968-02-27	1968-12-24
1969	1969-01-26	1969-12-14
1970	1970-01-03	1970-12-31
1971	1971-01-02	1971-12-31
1972	1972-01-10	1972-12-25
1973	1973-01-24	1973-12-22
1974	1974-02-05	1974-12-28
1975	1975-01-09	1975-11-24
1976	1976-01-15	1976-12-24
1977	1977-03-26	1977-11-30
1978	1978-02-05	1978-12-27
1979	1979-01-21	1979-12-02
1980	1980-01-04	1980-12-15
1981	1981-03-03	1981-12-28
1982	1982-01-07	1982-11-10
1986	1986-02-06	1986-12-17
1987	1987-03-01	1987-12-07
1988	1988-01-24	1988-12-18
1989	1989-01-05	1989-11-09
1990	1990-01-04	1990-12-28
1991	1991-01-25	1991-12-16
1992	1992-01-03	1992-11-22
1993	1993-01-17	1993-12-29
1994	1994-04-07	1994-11-08
1995	1995-01-21	1995-12-20
1996	1996-01-02	1996-11-22
1997	1997-01-22	1997-12-02
1998	1998-02-08	1998-12-27
1999	1999-02-07	1999-11-07
2000	2000-01-04	2000-12-24
2001	2001-03-08	2001-12-11
2002	2002-01-08	2002-10-19
2003	2003-03-01	2003-12-22
2004	2004-01-30	2004-11-06
2005	2005-01-05	2005-12-13
2006	2006-01-01	2006-12-25
2007	2007-01-06	2007-12-22
2008	2008-02-23	2008-11-28
2009	2009-02-23	2009-12-18

Every Fixed Threshold

Fixed thresholds at Killora (Grasmere)
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	91	28	1944	23
25 mm (0.98 in): Days with 25 mm or more rain	81	9	1970	6
50 mm (1.97 in): Days with 50 mm or more rain	41	5	1938	1
100 mm (3.94 in): Days with 100 mm or more rain	4	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 1915.

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Data for Killora (Grasmere) 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).

Killora (Grasmere) Threshold Days by Year (ASN00094026)

Key Facts for Killora (Grasmere) Thresholds

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

Every Fixed Threshold

Download the Data

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