Fountain Head Threshold Days by Year (SF001000250)

4 fixed thresholds counted per year at Fountain Head (SF001000250): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Fountain Head Thresholds

Fountain Head: days with 10 mm (0.39 in) or more of precipitation in 91 years, most in 1974 with 48.
Fountain Head: days with 25 mm (0.98 in) or more of precipitation in 91 years, most in 1950 with 15.
Fountain Head: days with 50 mm (1.97 in) or more of precipitation in 40 years, most in 1940 with 3.
Fountain Head: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1956 with 1.
4 fixed thresholds have at least one qualifying day at Fountain Head.

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

91 years with a qualifying day

Days per year at Fountain Head with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 48 in 1974.

Days with 10 mm (0.39 in) or more of precipitation per year at Fountain Head
Year	Days	Decade average
1894	25	24.5
1895	23	24.5
1896	25	24.5
1897	26	24.5
1898	27	24.5
1899	21	24.5
1900	17	18.8
1901	22	18.8
1902	21	18.8
1903	17	18.8
1904	17	18.8
1913	25	21.1
1914	21	21.1
1915	17	21.1
1916	18	21.1
1917	31	21.1
1918	20	21.1
1919	16	21.1
1920	26	19.3
1921	32	19.3
1922	23	19.3
1924	14	19.3
1925	22	19.3
1926	15	19.3
1927	6	19.3
1928	21	19.3
1929	15	19.3
1930	22	22.2
1931	16	22.2
1932	19	22.2
1933	22	22.2
1934	24	22.2
1935	29	22.2
1936	20	22.2
1937	21	22.2
1938	23	22.2
1939	26	22.2
1940	24	20.7
1941	18	20.7
1942	29	20.7
1943	30	20.7
1944	22	20.7
1945	8	20.7
1946	21	20.7
1947	25	20.7
1948	17	20.7
1949	13	20.7
1950	36	23.6
1951	18	23.6
1952	21	23.6
1956	20	23.6
1957	17	23.6
1958	26	23.6
1959	27	23.6
1960	22	22.9
1961	28	22.9
1962	20	22.9
1963	34	22.9
1964	23	22.9
1965	16	22.9
1966	16	22.9
1967	23	22.9
1968	24	22.9
1969	23	22.9
1970	20	27.4
1971	26	27.4
1972	19	27.4
1973	20	27.4
1974	48	27.4
1975	27	27.4
1976	40	27.4
1977	25	27.4
1978	22	27.4
1979	27	27.4
1980	23	23.3
1981	32	23.3
1982	19	23.3
1983	28	23.3
1984	17	23.3
1985	26	23.3
1986	25	23.3
1987	16	23.3
1988	25	23.3
1989	22	23.3
1990	19	23
1991	24	23
1992	18	23
1993	27	23
1994	21	23
1995	23	23
1996	29	23

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

First to last qualifying date each year at Fountain Head
Year	First date	Last date
1894	1894-01-01	1894-12-15
1895	1895-01-05	1895-12-26
1896	1896-01-04	1896-12-30
1897	1897-01-04	1897-12-22
1898	1898-01-02	1898-12-06
1899	1899-01-08	1899-12-30
1900	1900-01-11	1900-12-19
1901	1901-02-04	1901-11-18
1902	1902-01-12	1902-12-24
1903	1903-02-05	1903-12-11
1904	1904-01-09	1904-12-13
1913	1913-01-01	1913-11-08
1914	1914-01-20	1914-11-27
1915	1915-01-03	1915-12-30
1916	1916-01-13	1916-12-27
1917	1917-01-06	1917-12-26
1918	1918-01-02	1918-12-19
1919	1919-01-17	1919-11-08
1920	1920-02-02	1920-12-30
1921	1921-01-04	1921-12-29
1922	1922-01-07	1922-12-31
1924	1924-01-11	1924-12-27
1925	1925-02-09	1925-12-28
1926	1926-01-25	1926-12-27
1927	1927-03-14	1927-12-29
1928	1928-01-04	1928-12-25
1929	1929-01-18	1929-12-30
1930	1930-01-10	1930-12-31
1931	1931-01-03	1931-11-17
1932	1932-01-01	1932-12-25
1933	1933-01-02	1933-12-28
1934	1934-01-09	1934-12-23
1935	1935-01-30	1935-12-30
1936	1936-01-01	1936-11-28
1937	1937-01-28	1937-12-18
1938	1938-01-22	1938-12-31
1939	1939-01-01	1939-11-20
1940	1940-01-21	1940-12-03
1941	1941-01-07	1941-12-23
1942	1942-01-02	1942-11-21
1943	1943-01-12	1943-12-31
1944	1944-01-14	1944-10-22
1945	1945-01-06	1945-10-04
1946	1946-01-10	1946-11-25
1947	1947-01-16	1947-12-28
1948	1948-02-20	1948-12-20
1949	1949-01-30	1949-12-11
1950	1950-01-06	1950-12-30
1951	1951-01-02	1951-10-22
1952	1952-01-29	1952-12-16
1956	1956-01-27	1956-12-23
1957	1957-01-06	1957-12-30
1958	1958-01-07	1958-12-20
1959	1959-01-24	1959-12-21
1960	1960-01-04	1960-12-30
1961	1961-01-14	1961-12-25
1962	1962-01-17	1962-12-27
1963	1963-01-04	1963-12-12
1964	1964-01-31	1964-12-26
1965	1965-02-25	1965-11-04
1966	1966-01-21	1966-12-30
1967	1967-01-13	1967-12-10
1968	1968-02-16	1968-12-07
1969	1969-01-09	1969-11-20
1970	1970-01-31	1970-12-24
1971	1971-01-18	1971-12-03
1972	1972-01-10	1972-12-17
1973	1973-01-06	1973-12-23
1974	1974-01-07	1974-12-30
1975	1975-01-26	1975-12-29
1976	1976-01-04	1976-12-26
1977	1977-01-28	1977-12-31
1978	1978-01-01	1978-12-08
1979	1979-01-01	1979-12-25
1980	1980-01-13	1980-12-02
1981	1981-01-23	1981-12-23
1982	1982-02-14	1982-11-14
1983	1983-01-21	1983-12-27
1984	1984-01-01	1984-12-23
1985	1985-01-12	1985-12-23
1986	1986-01-03	1986-12-15
1987	1987-01-15	1987-12-21
1988	1988-01-06	1988-12-22
1989	1989-01-04	1989-12-13
1990	1990-01-09	1990-12-24
1991	1991-01-06	1991-12-30
1992	1992-01-08	1992-11-11
1993	1993-01-09	1993-12-26
1994	1994-01-05	1994-12-26
1995	1995-01-05	1995-12-25
1996	1996-01-05	1996-12-26

Every Fixed Threshold

Fixed thresholds at Fountain Head
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	48	1974	29
25 mm (0.98 in): Days with 25 mm or more rain	91	15	1950	6
50 mm (1.97 in): Days with 50 mm or more rain	40	3	1940	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1956	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1894.

Download the Data

Data for Fountain Head 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).

Fountain Head Threshold Days by Year (SF001000250)

Key Facts for Fountain Head Thresholds

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

Every Fixed Threshold

Download the Data

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