Potts Hill Reservoir Threshold Days by Year

5 fixed thresholds counted per year at Potts Hill Reservoir (ASN00066050): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Potts Hill Reservoir Thresholds

Potts Hill Reservoir: days with 10 mm (0.39 in) or more of precipitation in 109 years, most in 1950 with 53.
Potts Hill Reservoir: days with 25 mm (0.98 in) or more of precipitation in 109 years, most in 1963 with 20.
Potts Hill Reservoir: days with 50 mm (1.97 in) or more of precipitation in 95 years, most in 1950 with 8.
Potts Hill Reservoir: days with 100 mm (3.94 in) or more of precipitation in 33 years, most in 1913 with 3.
5 fixed thresholds have at least one qualifying day at Potts Hill Reservoir.

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

109 years with a qualifying day

Days per year at Potts Hill Reservoir with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 53 in 1950.

Days with 10 mm (0.39 in) or more of precipitation per year at Potts Hill Reservoir
Year	Days	Decade average
1896	22	25
1897	28	25
1898	20	25
1899	30	25
1900	31	22.1
1901	21	22.1
1902	17	22.1
1903	22	22.1
1904	29	22.1
1905	21	22.1
1906	17	22.1
1907	17	22.1
1908	25	22.1
1909	21	22.1
1910	25	28.1
1911	35	28.1
1912	27	28.1
1913	33	28.1
1914	31	28.1
1915	18	28.1
1916	34	28.1
1917	30	28.1
1918	19	28.1
1919	29	28.1
1920	29	25.9
1921	32	25.9
1922	20	25.9
1923	22	25.9
1924	31	25.9
1925	23	25.9
1926	22	25.9
1927	24	25.9
1928	22	25.9
1929	34	25.9
1930	23	22.1
1931	27	22.1
1932	19	22.1
1933	25	22.1
1934	35	22.1
1935	18	22.1
1936	16	22.1
1937	23	22.1
1938	20	22.1
1939	15	22.1
1940	15	22.1
1941	13	22.1
1942	26	22.1
1943	32	22.1
1944	12	22.1
1945	26	22.1
1946	16	22.1
1947	29	22.1
1948	18	22.1
1949	34	22.1
1950	53	29.9
1951	31	29.9
1952	33	29.9
1953	22	29.9
1954	28	29.9
1956	36	29.9
1957	16	29.9
1958	21	29.9
1959	29	29.9
1960	31	25.4
1961	28	25.4
1962	28	25.4
1963	41	25.4
1964	12	25.4
1965	20	25.4
1966	23	25.4
1967	27	25.4
1968	13	25.4
1969	31	25.4
1970	27	27.6
1971	19	27.6
1972	26	27.6
1973	33	27.6
1974	27	27.6
1975	24	27.6
1976	42	27.6
1977	21	27.6
1978	43	27.6
1979	14	27.6
1980	17	27.8
1981	23	27.8
1982	15	27.8
1983	25	27.8
1984	35	27.8
1985	33	27.8
1986	20	27.8
1987	34	27.8
1988	38	27.8
1989	38	27.8
1990	40	26.1
1991	20	26.1
1992	29	26.1
1993	17	26.1
1994	14	26.1
1995	32	26.1
1996	30	26.1
1997	17	26.1
1998	30	26.1
1999	32	26.1
2000	23	21.2
2001	27	21.2
2002	17	21.2
2003	21	21.2
2004	18	21.2
2005	21	21.2

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

First to last qualifying date each year at Potts Hill Reservoir
Year	First date	Last date
1896	1896-01-26	1896-11-28
1897	1897-01-10	1897-12-20
1898	1898-01-16	1898-12-24
1899	1899-01-12	1899-11-07
1900	1900-01-25	1900-12-07
1901	1901-01-02	1901-10-28
1902	1902-04-06	1902-12-18
1903	1903-01-05	1903-12-07
1904	1904-01-03	1904-12-19
1905	1905-01-30	1905-12-16
1906	1906-01-01	1906-12-25
1907	1907-01-27	1907-11-04
1908	1908-02-01	1908-12-22
1909	1909-01-06	1909-12-30
1910	1910-01-12	1910-12-19
1911	1911-01-12	1911-12-05
1912	1912-02-09	1912-12-13
1913	1913-01-05	1913-12-25
1914	1914-01-20	1914-12-31
1915	1915-03-16	1915-12-18
1916	1916-01-29	1916-12-14
1917	1917-01-23	1917-12-13
1918	1918-01-01	1918-09-23
1919	1919-02-25	1919-12-29
1920	1920-01-04	1920-12-13
1921	1921-01-04	1921-12-31
1922	1922-01-03	1922-12-07
1923	1923-01-06	1923-12-27
1924	1924-01-21	1924-12-28
1925	1925-01-16	1925-11-21
1926	1926-03-18	1926-12-30
1927	1927-01-07	1927-12-13
1928	1928-01-06	1928-10-12
1929	1929-02-05	1929-12-12
1930	1930-01-12	1930-12-30
1931	1931-02-06	1931-12-23
1932	1932-02-06	1932-12-24
1933	1933-01-16	1933-12-09
1934	1934-01-05	1934-12-23
1935	1935-01-06	1935-12-05
1936	1936-01-05	1936-12-26
1937	1937-01-02	1937-12-30
1938	1938-01-20	1938-11-01
1939	1939-01-05	1939-10-26
1940	1940-04-05	1940-12-21
1941	1941-01-03	1941-10-02
1942	1942-02-16	1942-12-31
1943	1943-01-04	1943-12-18
1944	1944-01-02	1944-09-29
1945	1945-01-12	1945-12-28
1946	1946-02-12	1946-12-15
1947	1947-01-07	1947-12-15
1948	1948-01-02	1948-12-31
1949	1949-01-01	1949-12-20
1950	1950-01-02	1950-12-09
1951	1951-01-14	1951-10-13
1952	1952-01-07	1952-12-31
1953	1953-01-06	1953-11-27
1954	1954-01-01	1954-12-17
1956	1956-01-12	1956-12-09
1957	1957-01-23	1957-12-31
1958	1958-01-11	1958-10-17
1959	1959-01-04	1959-12-19
1960	1960-01-04	1960-12-20
1961	1961-01-03	1961-12-27
1962	1962-01-08	1962-12-25
1963	1963-01-16	1963-12-28
1964	1964-03-08	1964-12-23
1965	1965-01-25	1965-10-28
1966	1966-01-17	1966-12-07
1967	1967-01-26	1967-11-20
1968	1968-01-05	1968-12-05
1969	1969-01-02	1969-12-23
1970	1970-01-11	1970-12-30
1971	1971-01-04	1971-12-15
1972	1972-01-07	1972-12-27
1973	1973-01-08	1973-12-28
1974	1974-01-11	1974-11-18
1975	1975-01-04	1975-11-17
1976	1976-01-10	1976-12-16
1977	1977-01-06	1977-09-28
1978	1978-01-04	1978-12-29
1979	1979-01-23	1979-11-24
1980	1980-01-02	1980-12-30
1981	1981-01-08	1981-12-14
1982	1982-01-17	1982-12-16
1983	1983-01-03	1983-12-29
1984	1984-01-02	1984-12-30
1985	1985-02-09	1985-12-24
1986	1986-01-16	1986-11-20
1987	1987-01-01	1987-12-29
1988	1988-01-09	1988-12-27
1989	1989-01-02	1989-12-10
1990	1990-01-08	1990-12-09
1991	1991-01-11	1991-12-22
1992	1992-01-06	1992-12-22
1993	1993-01-04	1993-11-21
1994	1994-02-13	1994-12-26
1995	1995-01-03	1995-12-18
1996	1996-01-03	1996-12-18
1997	1997-01-26	1997-12-10
1998	1998-01-21	1998-11-26
1999	1999-01-22	1999-12-29
2000	2000-03-06	2000-12-02
2001	2001-01-18	2001-12-15
2002	2002-01-07	2002-12-11
2003	2003-02-11	2003-12-13
2004	2004-01-22	2004-12-14
2005	2005-01-21	2005-12-03

Every Fixed Threshold

Fixed thresholds at Potts Hill Reservoir
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	109	53	1950	21
25 mm (0.98 in): Days with 25 mm or more rain	109	20	1963	5
50 mm (1.97 in): Days with 50 mm or more rain	95	8	1950	2
100 mm (3.94 in): Days with 100 mm or more rain	33	3	1913	1
200 mm (7.87 in): Days with 200 mm or more rain	3	1	1913	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1896.

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Data for Potts Hill Reservoir 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

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

Potts Hill Reservoir Threshold Days by Year

Key Facts for Potts Hill Reservoir Thresholds

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

Every Fixed Threshold

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