Marlborough Post Office Threshold Days by Year

5 fixed thresholds counted per year at Marlborough Post Office (ASN00033050): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Marlborough Post Office Thresholds

Marlborough Post Office: days with 10 mm (0.39 in) or more of precipitation in 104 years, most in 1890 with 57.
Marlborough Post Office: days with 25 mm (0.98 in) or more of precipitation in 104 years, most in 1890 with 29.
Marlborough Post Office: days with 50 mm (1.97 in) or more of precipitation in 96 years, most in 1918 with 11.
Marlborough Post Office: days with 100 mm (3.94 in) or more of precipitation in 50 years, most in 1890 with 4.
5 fixed thresholds have at least one qualifying day at Marlborough Post Office.

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

104 years with a qualifying day

Days per year at Marlborough Post Office with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 57 in 1890.

Days with 10 mm (0.39 in) or more of precipitation per year at Marlborough Post Office
Year	Days	Decade average
1888	16	25.5
1889	35	25.5
1890	57	31.2
1891	31	31.2
1892	31	31.2
1893	32	31.2
1894	30	31.2
1895	22	31.2
1896	23	31.2
1897	22	31.2
1898	29	31.2
1899	35	31.2
1900	16	24.7
1901	25	24.7
1903	28	24.7
1904	19	24.7
1905	21	24.7
1906	33	24.7
1907	26	24.7
1908	25	24.7
1909	29	24.7
1910	32	24.1
1911	22	24.1
1912	24	24.1
1913	31	24.1
1914	26	24.1
1915	15	24.1
1916	19	24.1
1917	32	24.1
1918	30	24.1
1919	10	24.1
1920	23	21.7
1921	27	21.7
1922	18	21.7
1923	13	21.7
1924	15	21.7
1925	19	21.7
1926	14	21.7
1927	34	21.7
1928	34	21.7
1929	20	21.7
1930	27	20.6
1931	19	20.6
1932	18	20.6
1933	28	20.6
1934	21	20.6
1935	17	20.6
1936	24	20.6
1937	16	20.6
1938	17	20.6
1939	19	20.6
1940	27	20.7
1941	22	20.7
1942	27	20.7
1943	36	20.7
1944	17	20.7
1945	18	20.7
1946	7	20.7
1947	19	20.7
1948	15	20.7
1949	19	20.7
1950	30	28.1
1951	18	28.1
1952	28	28.1
1953	22	28.1
1954	32	28.1
1955	35	28.1
1956	46	28.1
1957	19	28.1
1958	31	28.1
1959	20	28.1
1960	19	19.2
1961	17	19.2
1962	20	19.2
1963	17	19.2
1964	19	19.2
1965	13	19.2
1966	17	19.2
1967	26	19.2
1968	29	19.2
1969	15	19.2
1970	21	25.8
1971	28	25.8
1972	11	25.8
1973	34	25.8
1974	38	25.8
1975	26	25.8
1978	23	25.8
1979	25	25.8
1980	20	17.6
1981	23	17.6
1982	13	17.6
1983	26	17.6
1984	22	17.6
1985	13	17.6
1986	12	17.6
1987	12	17.6
1990	12	12
1991	16	12
1993	14	12
1994	7	12
1995	9	12
1996	14	12
1999	12	12

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

First to last qualifying date each year at Marlborough Post Office
Year	First date	Last date
1888	1888-02-13	1888-12-27
1889	1889-01-21	1889-12-21
1890	1890-01-01	1890-12-25
1891	1891-01-08	1891-12-17
1892	1892-01-12	1892-12-29
1893	1893-01-30	1893-12-21
1894	1894-01-01	1894-12-12
1895	1895-01-01	1895-12-29
1896	1896-01-26	1896-12-20
1897	1897-01-09	1897-12-30
1898	1898-01-02	1898-12-17
1899	1899-01-04	1899-12-28
1900	1900-01-09	1900-10-28
1901	1901-01-11	1901-10-24
1903	1903-01-22	1903-12-14
1904	1904-01-03	1904-12-19
1905	1905-01-05	1905-12-31
1906	1906-01-02	1906-12-25
1907	1907-01-09	1907-12-29
1908	1908-01-10	1908-12-30
1909	1909-01-15	1909-12-23
1910	1910-01-01	1910-12-25
1911	1911-01-10	1911-10-20
1912	1912-02-16	1912-12-31
1913	1913-01-01	1913-12-25
1914	1914-01-23	1914-12-29
1915	1915-01-07	1915-12-28
1916	1916-02-02	1916-12-28
1917	1917-01-14	1917-12-14
1918	1918-01-10	1918-12-27
1919	1919-02-01	1919-06-12
1920	1920-01-01	1920-12-09
1921	1921-01-01	1921-12-31
1922	1922-01-01	1922-12-25
1923	1923-01-02	1923-12-28
1924	1924-01-28	1924-12-16
1925	1925-01-05	1925-12-30
1926	1926-01-02	1926-12-29
1927	1927-01-12	1927-12-24
1928	1928-01-09	1928-12-25
1929	1929-01-20	1929-12-31
1930	1930-01-01	1930-10-13
1931	1931-01-21	1931-12-23
1932	1932-01-15	1932-12-25
1933	1933-01-20	1933-12-17
1934	1934-02-01	1934-12-30
1935	1935-01-02	1935-12-15
1936	1936-01-07	1936-12-31
1937	1937-01-03	1937-12-16
1938	1938-01-08	1938-12-15
1939	1939-01-20	1939-12-17
1940	1940-01-06	1940-12-22
1941	1941-01-13	1941-12-30
1942	1942-01-18	1942-12-31
1943	1943-01-01	1943-12-30
1944	1944-01-07	1944-12-24
1945	1945-01-03	1945-12-20
1946	1946-02-05	1946-12-16
1947	1947-01-11	1947-12-11
1948	1948-01-03	1948-12-31
1949	1949-01-04	1949-11-30
1950	1950-01-04	1950-12-16
1951	1951-01-09	1951-11-11
1952	1952-01-09	1952-12-22
1953	1953-01-01	1953-12-28
1954	1954-01-04	1954-12-16
1955	1955-01-24	1955-12-20
1956	1956-01-05	1956-12-30
1957	1957-01-10	1957-12-14
1958	1958-01-02	1958-12-31
1959	1959-01-06	1959-12-26
1960	1960-01-18	1960-12-27
1961	1961-01-04	1961-12-14
1962	1962-01-05	1962-12-29
1963	1963-01-05	1963-12-14
1964	1964-01-02	1964-12-08
1965	1965-01-31	1965-12-13
1966	1966-01-21	1966-12-31
1967	1967-01-01	1967-12-26
1968	1968-01-05	1968-12-25
1969	1969-01-20	1969-12-25
1970	1970-01-19	1970-12-30
1971	1971-01-15	1971-12-13
1972	1972-01-10	1972-11-15
1973	1973-01-11	1973-12-27
1974	1974-01-02	1974-12-30
1975	1975-01-02	1975-12-22
1978	1978-01-06	1978-12-28
1979	1979-01-23	1979-12-28
1980	1980-01-10	1980-12-31
1981	1981-01-01	1981-12-25
1982	1982-01-05	1982-12-21
1983	1983-01-03	1983-12-03
1984	1984-01-04	1984-12-15
1985	1985-01-05	1985-12-10
1986	1986-01-03	1986-12-16
1987	1987-01-29	1987-12-31
1990	1990-03-27	1990-12-29
1991	1991-01-02	1991-12-11
1993	1993-01-08	1993-12-10
1994	1994-02-03	1994-11-23
1995	1995-02-23	1995-12-12
1996	1996-01-03	1996-11-22
1999	1999-01-05	1999-12-19

Every Fixed Threshold

Fixed thresholds at Marlborough Post Office
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	104	57	1890	12
25 mm (0.98 in): Days with 25 mm or more rain	104	29	1890	4
50 mm (1.97 in): Days with 50 mm or more rain	96	11	1918	1
100 mm (3.94 in): Days with 100 mm or more rain	50	4	1890	2
200 mm (7.87 in): Days with 200 mm or more rain	9	2	1896	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1888.

Download the Data

Data for Marlborough Post Office 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).

Marlborough Post Office Threshold Days by Year

Key Facts for Marlborough Post Office Thresholds

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

Every Fixed Threshold

Download the Data

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