Waterford Threshold Days by Year (SF002328230)

4 fixed thresholds counted per year at Waterford (SF002328230): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Waterford Thresholds

Waterford: days with 10 mm (0.39 in) or more of precipitation in 83 years, most in 1943 with 34.
Waterford: days with 25 mm (0.98 in) or more of precipitation in 81 years, most in 1943 with 10.
Waterford: days with 50 mm (1.97 in) or more of precipitation in 36 years, most in 1988 with 4.
Waterford: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1988 with 2.
4 fixed thresholds have at least one qualifying day at Waterford.

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

83 years with a qualifying day

Days per year at Waterford with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 1943.

Days with 10 mm (0.39 in) or more of precipitation per year at Waterford
Year	Days	Decade average
1914	14	16.3
1915	23	16.3
1916	16	16.3
1917	22	16.3
1918	14	16.3
1919	9	16.3
1920	21	19.2
1921	13	19.2
1922	13	19.2
1923	20	19.2
1924	30	19.2
1925	29	19.2
1926	16	19.2
1927	18	19.2
1928	13	19.2
1930	12	19.8
1931	23	19.8
1932	15	19.8
1933	10	19.8
1934	27	19.8
1935	25	19.8
1936	19	19.8
1937	22	19.8
1938	19	19.8
1939	26	19.8
1940	18	17.8
1941	16	17.8
1942	20	17.8
1943	34	17.8
1944	9	17.8
1945	12	17.8
1946	15	17.8
1947	19	17.8
1948	22	17.8
1949	13	17.8
1950	31	21.2
1951	14	21.2
1952	19	21.2
1953	18	21.2
1954	14	21.2
1955	22	21.2
1956	27	21.2
1957	27	21.2
1958	24	21.2
1959	16	21.2
1960	18	17.6
1961	24	17.6
1962	22	17.6
1963	20	17.6
1964	21	17.6
1965	11	17.6
1966	13	17.6
1967	21	17.6
1968	13	17.6
1969	13	17.6
1970	13	20.7
1971	17	20.7
1972	23	20.7
1973	11	20.7
1974	26	20.7
1975	27	20.7
1976	29	20.7
1977	20	20.7
1978	22	20.7
1979	19	20.7
1980	18	20
1981	21	20
1982	16	20
1983	15	20
1984	18	20
1985	20	20
1986	22	20
1987	21	20
1988	25	20
1989	24	20
1990	16	17.4
1991	24	17.4
1992	3	17.4
1993	19	17.4
1994	20	17.4
1995	17	17.4
1996	23	17.4
1997	17	17.4

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

First to last qualifying date each year at Waterford
Year	First date	Last date
1914	1914-04-02	1914-12-16
1915	1915-01-13	1915-11-24
1916	1916-01-03	1916-12-22
1917	1917-01-18	1917-12-30
1918	1918-01-16	1918-12-08
1919	1919-01-21	1919-12-28
1920	1920-01-24	1920-11-25
1921	1921-02-12	1921-12-28
1922	1922-01-09	1922-12-19
1923	1923-01-09	1923-11-21
1924	1924-01-25	1924-12-27
1925	1925-01-01	1925-12-06
1926	1926-01-18	1926-12-24
1927	1927-01-21	1927-12-28
1928	1928-01-04	1928-12-07
1930	1930-01-15	1930-10-09
1931	1931-01-15	1931-11-10
1932	1932-01-14	1932-12-22
1933	1933-03-04	1933-12-26
1934	1934-01-02	1934-12-28
1935	1935-01-03	1935-12-31
1936	1936-02-07	1936-11-28
1937	1937-01-04	1937-12-17
1938	1938-01-17	1938-12-27
1939	1939-01-01	1939-12-06
1940	1940-02-09	1940-12-21
1941	1941-01-16	1941-10-17
1942	1942-01-03	1942-12-31
1943	1943-01-08	1943-12-31
1944	1944-01-03	1944-11-28
1945	1945-01-06	1945-12-30
1946	1946-01-09	1946-12-22
1947	1947-01-16	1947-12-26
1948	1948-01-07	1948-10-11
1949	1949-01-30	1949-12-18
1950	1950-01-06	1950-12-28
1951	1951-01-01	1951-10-04
1952	1952-01-15	1952-12-15
1953	1953-01-11	1953-12-19
1954	1954-01-16	1954-12-15
1955	1955-01-21	1955-12-17
1956	1956-01-13	1956-12-17
1957	1957-01-29	1957-12-31
1958	1958-01-01	1958-12-31
1959	1959-01-07	1959-12-17
1960	1960-02-23	1960-12-18
1961	1961-01-02	1961-12-16
1962	1962-01-04	1962-12-31
1963	1963-01-04	1963-12-08
1964	1964-02-11	1964-12-27
1965	1965-01-10	1965-12-16
1966	1966-01-07	1966-12-30
1967	1967-01-03	1967-11-17
1968	1968-03-03	1968-12-07
1969	1969-01-29	1969-12-27
1970	1970-01-17	1970-12-06
1971	1971-01-08	1971-12-19
1972	1972-01-09	1972-12-26
1973	1973-01-31	1973-12-04
1974	1974-01-21	1974-12-19
1975	1975-01-23	1975-12-20
1976	1976-01-05	1976-12-25
1977	1977-01-10	1977-12-30
1978	1978-01-04	1978-12-09
1979	1979-01-17	1979-12-23
1980	1980-01-18	1980-11-29
1981	1981-01-24	1981-12-22
1982	1982-01-28	1982-12-05
1983	1983-01-13	1983-12-31
1984	1984-01-01	1984-12-17
1985	1985-01-16	1985-12-05
1986	1986-01-18	1986-12-29
1987	1987-02-07	1987-12-22
1988	1988-02-16	1988-12-19
1989	1989-01-02	1989-12-31
1990	1990-01-15	1990-12-23
1991	1991-01-07	1991-12-04
1992	1992-02-19	1992-04-15
1993	1993-01-23	1993-12-28
1994	1994-01-18	1994-11-14
1995	1995-01-11	1995-12-17
1996	1996-01-17	1996-12-30
1997	1997-01-04	1997-11-28

Every Fixed Threshold

Fixed thresholds at Waterford
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	83	34	1943	17
25 mm (0.98 in): Days with 25 mm or more rain	81	10	1943	2
50 mm (1.97 in): Days with 50 mm or more rain	36	4	1988	1
100 mm (3.94 in): Days with 100 mm or more rain	3	2	1988	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1914.

Download the Data

Data for Waterford 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).

Waterford Threshold Days by Year (SF002328230)

Key Facts for Waterford Thresholds

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

Every Fixed Threshold

Download the Data

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