Hillmoor Threshold Days by Year

3 fixed thresholds counted per year at Hillmoor (SF001470100): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hillmoor Thresholds

Hillmoor: days with 10 mm (0.39 in) or more of precipitation in 67 years, most in 1909 with 26.
Hillmoor: days with 25 mm (0.98 in) or more of precipitation in 58 years, most in 1963 with 8.
Hillmoor: days with 50 mm (1.97 in) or more of precipitation in 22 years, most in 1932 with 2.
3 fixed thresholds have at least one qualifying day at Hillmoor.

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

67 years with a qualifying day

Days per year at Hillmoor with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1909.

Days with 10 mm (0.39 in) or more of precipitation per year at Hillmoor
Year	Days	Decade average
1898	12	16
1899	20	16
1900	14	12.8
1901	19	12.8
1902	13	12.8
1903	4	12.8
1904	11	12.8
1905	11	12.8
1906	12	12.8
1907	11	12.8
1908	7	12.8
1909	26	12.8
1911	20	11
1912	11	11
1913	7	11
1914	10	11
1915	10	11
1916	12	11
1917	11	11
1918	14	11
1919	4	11
1920	15	12.6
1921	13	12.6
1922	11	12.6
1923	17	12.6
1924	10	12.6
1925	18	12.6
1926	9	12.6
1927	8	12.6
1928	11	12.6
1929	14	12.6
1930	9	11.9
1931	14	11.9
1932	6	11.9
1933	9	11.9
1934	19	11.9
1935	8	11.9
1936	10	11.9
1937	11	11.9
1938	14	11.9
1939	19	11.9
1940	18	15.6
1941	16	15.6
1942	20	15.6
1943	20	15.6
1944	13	15.6
1945	9	15.6
1946	13	15.6
1947	21	15.6
1948	14	15.6
1949	12	15.6
1950	25	15.6
1951	12	15.6
1952	17	15.6
1958	9	15.6
1959	15	15.6
1960	12	15
1961	21	15
1962	20	15
1963	19	15
1964	5	15
1965	17	15
1966	9	15
1967	25	15
1968	10	15
1969	12	15
1970	8	8

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

First to last qualifying date each year at Hillmoor
Year	First date	Last date
1898	1898-02-12	1898-12-06
1899	1899-01-07	1899-12-26
1900	1900-01-25	1900-12-18
1901	1901-02-04	1901-10-30
1902	1902-02-11	1902-12-24
1903	1903-01-08	1903-05-26
1904	1904-01-09	1904-10-25
1905	1905-01-13	1905-12-26
1906	1906-01-26	1906-12-11
1907	1907-01-05	1907-12-13
1908	1908-01-28	1908-12-21
1909	1909-01-01	1909-12-26
1911	1911-01-05	1911-11-18
1912	1912-01-13	1912-12-30
1913	1913-01-17	1913-10-12
1914	1914-01-19	1914-12-03
1915	1915-01-05	1915-11-24
1916	1916-02-22	1916-12-15
1917	1917-01-25	1917-11-28
1918	1918-01-01	1918-11-23
1919	1919-03-12	1919-11-07
1920	1920-01-28	1920-12-18
1921	1921-02-03	1921-12-23
1922	1922-01-11	1922-11-27
1923	1923-01-09	1923-08-22
1924	1924-03-03	1924-12-18
1925	1925-01-31	1925-12-05
1926	1926-02-01	1926-12-27
1927	1927-01-21	1927-12-28
1928	1928-01-04	1928-11-23
1929	1929-01-18	1929-12-10
1930	1930-01-14	1930-12-26
1931	1931-01-30	1931-12-31
1932	1932-02-11	1932-11-22
1933	1933-03-01	1933-12-30
1934	1934-01-02	1934-12-20
1935	1935-03-14	1935-11-21
1936	1936-03-21	1936-11-26
1937	1937-01-04	1937-12-23
1938	1938-01-17	1938-10-28
1939	1939-01-16	1939-11-26
1940	1940-01-28	1940-12-07
1941	1941-01-16	1941-10-28
1942	1942-01-24	1942-12-03
1943	1943-01-15	1943-11-27
1944	1944-01-01	1944-10-27
1945	1945-01-30	1945-12-30
1946	1946-01-26	1946-11-26
1947	1947-01-07	1947-12-29
1948	1948-01-29	1948-11-17
1949	1949-01-12	1949-12-17
1950	1950-01-05	1950-12-25
1951	1951-01-11	1951-10-03
1952	1952-01-31	1952-12-16
1958	1958-01-17	1958-12-28
1959	1959-01-24	1959-12-03
1960	1960-02-14	1960-12-27
1961	1961-01-02	1961-12-16
1962	1962-01-19	1962-12-10
1963	1963-01-03	1963-12-08
1964	1964-03-24	1964-11-03
1965	1965-01-14	1965-12-16
1966	1966-01-19	1966-12-03
1967	1967-01-20	1967-11-23
1968	1968-03-05	1968-12-07
1969	1969-02-25	1969-10-20
1970	1970-01-27	1970-12-25

Every Fixed Threshold

Fixed thresholds at Hillmoor
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	67	26	1909	8
25 mm (0.98 in): Days with 25 mm or more rain	58	8	1963	4
50 mm (1.97 in): Days with 50 mm or more rain	22	2	1932	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 Hillmoor 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

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

Hillmoor Threshold Days by Year

Key Facts for Hillmoor Thresholds

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

Every Fixed Threshold

Download the Data

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