Ipswich Threshold Days by Year (USC00193876)

7 fixed thresholds counted per year at Ipswich (USC00193876): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ipswich Thresholds

Ipswich: days with 10 mm (0.39 in) or more of precipitation in 76 years, most in 2008 with 52.
Ipswich: days with 25 mm (0.98 in) or more of precipitation in 76 years, most in 1983 with 24.
Ipswich: days with 50 mm (1.97 in) or more of precipitation in 66 years, most in 1937 with 6.
Ipswich: days with 10 cm (3.9 in) or more of snowfall in 59 years, most in 1956 with 11.
7 fixed thresholds have at least one qualifying day at Ipswich.

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

76 years with a qualifying day

Days per year at Ipswich with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 52 in 2008.

Days with 10 mm (0.39 in) or more of precipitation per year at Ipswich
Year	Days	Decade average
1926	33	37.3
1927	39	37.3
1928	41	37.3
1929	36	37.3
1930	33	37.3
1931	42	37.3
1932	28	37.3
1933	46	37.3
1934	36	37.3
1935	33	37.3
1937	37	37.3
1938	46	37.3
1939	35	37.3
1940	30	33.9
1941	26	33.9
1942	42	33.9
1943	32	33.9
1944	39	33.9
1946	37	33.9
1947	31	33.9
1948	38	33.9
1949	30	33.9
1950	21	39.4
1951	41	39.4
1952	38	39.4
1953	46	39.4
1954	46	39.4
1955	36	39.4
1956	48	39.4
1957	32	39.4
1958	42	39.4
1959	44	39.4
1960	39	36.3
1961	38	36.3
1962	40	36.3
1963	27	36.3
1964	35	36.3
1965	25	36.3
1966	36	36.3
1967	42	36.3
1968	38	36.3
1969	43	36.3
1970	38	39.6
1971	40	39.6
1972	50	39.6
1973	41	39.6
1974	39	39.6
1975	48	39.6
1976	27	39.6
1977	38	39.6
1978	35	39.6
1979	40	39.6
1980	29	37
1981	42	37
1982	37	37
1983	44	37
1984	47	37
1985	35	37
1986	36	37
1987	36	37
1988	27	37
1990	33	37
1991	33	37
1992	35	37
1993	37	37
1994	39	37
1996	45	37
1997	40	37
1998	39	37
1999	32	37
2000	38	42.3
2002	42	42.3
2003	40	42.3
2005	46	42.3
2007	36	42.3
2008	52	42.3

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

First to last qualifying date each year at Ipswich
Year	First date	Last date
1926	1926-01-09	1926-12-28
1927	1927-01-11	1927-12-16
1928	1928-01-19	1928-12-27
1929	1929-01-01	1929-12-29
1930	1930-01-18	1930-12-27
1931	1931-01-05	1931-12-24
1932	1932-01-01	1932-11-10
1933	1933-01-09	1933-12-26
1934	1934-01-05	1934-12-19
1935	1935-01-01	1935-12-15
1937	1937-01-02	1937-12-31
1938	1938-01-01	1938-12-26
1939	1939-01-03	1939-12-20
1940	1940-01-14	1940-12-28
1941	1941-01-03	1941-12-24
1942	1942-01-01	1942-12-30
1943	1943-01-19	1943-12-26
1944	1944-01-06	1944-12-27
1946	1946-01-09	1946-12-29
1947	1947-01-01	1947-12-26
1948	1948-01-02	1948-11-20
1949	1949-01-01	1949-12-03
1950	1950-01-07	1950-12-30
1951	1951-01-08	1951-12-31
1952	1952-01-03	1952-12-23
1953	1953-01-04	1953-12-15
1954	1954-01-04	1954-12-30
1955	1955-01-03	1955-12-05
1956	1956-01-04	1956-12-30
1957	1957-01-07	1957-12-29
1958	1958-01-01	1958-12-05
1959	1959-01-02	1959-12-29
1960	1960-01-04	1960-12-30
1961	1961-01-02	1961-12-29
1962	1962-01-07	1962-12-30
1963	1963-01-13	1963-12-24
1964	1964-01-02	1964-12-28
1965	1965-01-11	1965-12-26
1966	1966-01-03	1966-12-30
1967	1967-01-28	1967-12-29
1968	1968-01-01	1968-12-29
1969	1969-01-01	1969-12-27
1970	1970-02-04	1970-12-25
1971	1971-01-02	1971-12-31
1972	1972-02-04	1972-12-31
1973	1973-01-01	1973-12-27
1974	1974-01-10	1974-12-26
1975	1975-01-01	1975-12-31
1976	1976-01-04	1976-12-30
1977	1977-01-08	1977-12-22
1978	1978-01-09	1978-12-25
1979	1979-01-03	1979-12-14
1980	1980-01-12	1980-12-16
1981	1981-02-03	1981-12-28
1982	1982-01-02	1982-11-29
1983	1983-01-11	1983-11-29
1984	1984-02-04	1984-12-22
1985	1985-02-06	1985-12-14
1986	1986-01-04	1986-12-26
1987	1987-01-02	1987-12-16
1988	1988-01-09	1988-12-25
1990	1990-01-01	1990-12-24
1991	1991-01-10	1991-12-30
1992	1992-01-24	1992-12-31
1993	1993-01-05	1993-12-21
1994	1994-01-04	1994-12-25
1996	1996-01-03	1996-12-25
1997	1997-01-17	1997-12-30
1998	1998-01-09	1998-12-30
1999	1999-01-03	1999-12-07
2000	2000-01-11	2000-12-30
2002	2002-01-07	2002-12-26
2003	2003-01-02	2003-12-25
2005	2005-01-04	2005-12-27
2007	2007-01-01	2007-12-31
2008	2008-01-12	2008-12-22

Every Fixed Threshold

Fixed thresholds at Ipswich
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	76	52	2008	52
25 mm (0.98 in): Days with 25 mm or more rain	76	24	1983	19
50 mm (1.97 in): Days with 50 mm or more rain	66	6	1937	4
100 mm (3.94 in): Days with 100 mm or more rain	10	2	1996	1
10 cm (3.9 in): Days with 10 cm or more snowfall	59	11	1956	5
25 cm (9.8 in): Days with 25 cm or more snowfall	35	4	1978	1
50 cm (19.7 in): Days with 50 cm or more snowfall	4	2	1978	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1926.

Download the Data

Data for Ipswich 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).

Ipswich Threshold Days by Year (USC00193876)

Key Facts for Ipswich Thresholds

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

Every Fixed Threshold

Download the Data

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