Tor Downs Threshold Days by Year (ASN00047038)

3 fixed thresholds counted per year at Tor Downs (ASN00047038): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tor Downs Thresholds

Tor Downs: days with 10 mm (0.39 in) or more of precipitation in 49 years, most in 1958 with 15.
Tor Downs: days with 25 mm (0.98 in) or more of precipitation in 33 years, most in 1921 with 4.
Tor Downs: days with 50 mm (1.97 in) or more of precipitation in 10 years, most in 1966 with 2.
3 fixed thresholds have at least one qualifying day at Tor Downs.

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

49 years with a qualifying day

Days per year at Tor Downs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 15 in 1958.

Days with 10 mm (0.39 in) or more of precipitation per year at Tor Downs
Year	Days	Decade average
1920	12	6.1
1921	11	6.1
1922	4	6.1
1923	5	6.1
1924	5	6.1
1925	5	6.1
1926	9	6.1
1927	2	6.1
1928	5	6.1
1929	3	6.1
1930	5	5.4
1931	11	5.4
1932	5	5.4
1933	1	5.4
1934	2	5.4
1935	1	5.4
1936	7	5.4
1937	12	5.4
1938	2	5.4
1939	8	5.4
1940	1	4.9
1941	6	4.9
1942	5	4.9
1944	2	4.9
1945	4	4.9
1946	8	4.9
1947	6	4.9
1948	4	4.9
1949	8	4.9
1950	7	7.6
1951	3	7.6
1952	8	7.6
1953	4	7.6
1954	7	7.6
1955	9	7.6
1956	13	7.6
1957	5	7.6
1958	15	7.6
1959	5	7.6
1960	6	7
1961	6	7
1962	10	7
1963	11	7
1964	4	7
1965	5	7
1966	6	7
1968	8	7
1969	7	7
1970	5	5

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

First to last qualifying date each year at Tor Downs
Year	First date	Last date
1920	1920-01-17	1920-11-30
1921	1921-02-21	1921-09-08
1922	1922-05-04	1922-10-24
1923	1923-06-03	1923-12-26
1924	1924-01-06	1924-12-15
1925	1925-05-13	1925-09-12
1926	1926-03-21	1926-12-17
1927	1927-10-20	1927-11-24
1928	1928-02-13	1928-07-24
1929	1929-02-21	1929-12-27
1930	1930-03-13	1930-12-07
1931	1931-03-13	1931-10-17
1932	1932-02-09	1932-11-30
1933	1933-11-29	1933-11-29
1934	1934-10-25	1934-11-06
1935	1935-10-21	1935-10-21
1936	1936-01-06	1936-12-23
1937	1937-01-09	1937-12-01
1938	1938-10-23	1938-10-24
1939	1939-02-17	1939-11-16
1940	1940-09-21	1940-09-21
1941	1941-01-04	1941-11-05
1942	1942-02-13	1942-10-29
1944	1944-01-23	1944-07-04
1945	1945-06-21	1945-12-27
1946	1946-01-17	1946-06-29
1947	1947-02-13	1947-12-22
1948	1948-04-11	1948-12-29
1949	1949-02-28	1949-10-11
1950	1950-02-04	1950-12-20
1951	1951-06-11	1951-10-03
1952	1952-01-05	1952-11-26
1953	1953-01-06	1953-10-15
1954	1954-04-29	1954-12-10
1955	1955-01-29	1955-09-08
1956	1956-01-19	1956-07-17
1957	1957-02-07	1957-12-31
1958	1958-01-30	1958-11-30
1959	1959-03-03	1959-10-09
1960	1960-01-12	1960-11-18
1961	1961-01-01	1961-11-19
1962	1962-01-17	1962-12-29
1963	1963-01-03	1963-12-30
1964	1964-04-07	1964-09-29
1965	1965-05-31	1965-09-06
1966	1966-05-05	1966-12-31
1968	1968-01-04	1968-12-22
1969	1969-02-10	1969-10-27
1970	1970-01-01	1970-09-27

Every Fixed Threshold

Fixed thresholds at Tor Downs
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	49	15	1958	5
25 mm (0.98 in): Days with 25 mm or more rain	33	4	1921	1
50 mm (1.97 in): Days with 50 mm or more rain	10	2	1966	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1920.

Download the Data

Data for Tor Downs 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).

Tor Downs Threshold Days by Year (ASN00047038)

Key Facts for Tor Downs Thresholds

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

Every Fixed Threshold

Download the Data

Related