Princetown Threshold Days by Year

4 fixed thresholds counted per year at Princetown (ASN00090071): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Princetown Thresholds

Princetown: days with 10 mm (0.39 in) or more of precipitation in 110 years, most in 1956 with 50.
Princetown: days with 25 mm (0.98 in) or more of precipitation in 104 years, most in 1971 with 11.
Princetown: days with 50 mm (1.97 in) or more of precipitation in 23 years, most in 2000 with 3.
Princetown: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1952 with 1.
4 fixed thresholds have at least one qualifying day at Princetown.

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

110 years with a qualifying day

Days per year at Princetown with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 50 in 1956.

Days with 10 mm (0.39 in) or more of precipitation per year at Princetown
Year	Days	Decade average
1901	22	24.1
1902	22	24.1
1903	33	24.1
1904	22	24.1
1905	24	24.1
1906	26	24.1
1907	18	24.1
1908	24	24.1
1909	26	24.1
1910	35	22.9
1911	26	22.9
1912	17	22.9
1913	16	22.9
1914	18	22.9
1915	28	22.9
1916	25	22.9
1917	26	22.9
1918	18	22.9
1919	20	22.9
1920	19	23.4
1921	22	23.4
1922	25	23.4
1923	32	23.4
1924	17	23.4
1925	18	23.4
1926	20	23.4
1927	15	23.4
1928	32	23.4
1929	34	23.4
1930	27	26
1931	28	26
1932	23	26
1933	28	26
1934	22	26
1935	33	26
1936	19	26
1937	22	26
1938	26	26
1939	32	26
1940	19	24.7
1941	22	24.7
1942	35	24.7
1943	23	24.7
1944	24	24.7
1945	22	24.7
1946	32	24.7
1947	25	24.7
1948	21	24.7
1949	24	24.7
1950	29	37.8
1951	34	37.8
1952	49	37.8
1953	35	37.8
1954	30	37.8
1955	41	37.8
1956	50	37.8
1957	37	37.8
1958	45	37.8
1959	28	37.8
1960	42	26.9
1961	15	26.9
1962	21	26.9
1963	18	26.9
1964	39	26.9
1965	26	26.9
1966	25	26.9
1967	17	26.9
1968	39	26.9
1969	27	26.9
1970	44	29.4
1971	40	29.4
1972	25	29.4
1973	36	29.4
1974	29	29.4
1975	29	29.4
1976	22	29.4
1977	21	29.4
1978	27	29.4
1979	21	29.4
1980	22	22.6
1981	22	22.6
1982	13	22.6
1983	25	22.6
1984	27	22.6
1985	21	22.6
1986	29	22.6
1987	20	22.6
1988	22	22.6
1989	25	22.6
1990	31	26.8
1991	29	26.8
1992	26	26.8
1994	26	26.8
1995	27	26.8
1998	22	26.8
2000	25	24.3
2001	24	24.3
2002	28	24.3
2003	27	24.3
2004	28	24.3
2005	20	24.3
2006	14	24.3
2007	23	24.3
2008	22	24.3
2009	32	24.3
2010	33	33
2023	25	22.3
2024	15	22.3
2025	31	22.3
2026	18	22.3

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

First to last qualifying date each year at Princetown
Year	First date	Last date
1901	1901-03-10	1901-11-14
1902	1902-02-04	1902-12-20
1903	1903-01-07	1903-12-27
1904	1904-01-03	1904-11-02
1905	1905-01-29	1905-12-03
1906	1906-02-28	1906-11-29
1907	1907-03-05	1907-12-29
1908	1908-01-09	1908-12-22
1909	1909-01-22	1909-11-19
1910	1910-03-06	1910-12-23
1911	1911-02-07	1911-12-19
1912	1912-03-05	1912-12-10
1913	1913-03-14	1913-12-23
1914	1914-01-27	1914-12-25
1915	1915-01-07	1915-10-04
1916	1916-01-28	1916-11-15
1917	1917-01-22	1917-12-31
1918	1918-01-14	1918-11-19
1919	1919-02-03	1919-12-28
1920	1920-02-29	1920-11-05
1921	1921-01-02	1921-12-03
1922	1922-01-29	1922-11-07
1923	1923-05-10	1923-12-16
1924	1924-01-11	1924-11-08
1925	1925-01-14	1925-11-18
1926	1926-02-09	1926-12-17
1927	1927-02-05	1927-12-05
1928	1928-01-01	1928-10-26
1929	1929-01-30	1929-12-03
1930	1930-02-19	1930-12-26
1931	1931-01-25	1931-11-18
1932	1932-02-05	1932-12-01
1933	1933-01-30	1933-12-15
1934	1934-01-09	1934-11-30
1935	1935-02-11	1935-11-22
1936	1936-01-09	1936-12-30
1937	1937-01-01	1937-12-08
1938	1938-01-26	1938-11-04
1939	1939-01-04	1939-12-25
1940	1940-01-06	1940-12-31
1941	1941-01-25	1941-12-07
1942	1942-01-20	1942-12-19
1943	1943-02-18	1943-09-12
1944	1944-01-03	1944-12-21
1945	1945-01-31	1945-12-17
1946	1946-01-04	1946-12-29
1947	1947-03-12	1947-11-09
1948	1948-02-09	1948-12-26
1949	1949-02-21	1949-12-26
1950	1950-01-09	1950-11-28
1951	1951-02-19	1951-12-19
1952	1952-01-05	1952-12-11
1953	1953-01-06	1953-12-07
1954	1954-01-26	1954-12-12
1955	1955-01-28	1955-12-03
1956	1956-01-04	1956-12-27
1957	1957-02-07	1957-12-26
1958	1958-01-31	1958-11-21
1959	1959-01-25	1959-12-25
1960	1960-01-09	1960-11-21
1961	1961-04-07	1961-10-11
1962	1962-02-14	1962-12-11
1963	1963-01-01	1963-09-08
1964	1964-02-07	1964-12-24
1965	1965-03-09	1965-12-31
1966	1966-03-16	1966-12-19
1967	1967-01-13	1967-12-30
1968	1968-02-21	1968-12-16
1969	1969-01-26	1969-12-02
1970	1970-01-03	1970-12-31
1971	1971-01-01	1971-12-31
1972	1972-01-12	1972-11-10
1973	1973-01-13	1973-12-22
1974	1974-03-25	1974-11-05
1975	1975-01-11	1975-11-23
1976	1976-01-25	1976-12-12
1977	1977-01-14	1977-11-29
1978	1978-01-30	1978-12-17
1979	1979-01-21	1979-12-17
1980	1980-01-12	1980-11-19
1981	1981-01-09	1981-12-13
1982	1982-03-23	1982-12-08
1983	1983-01-11	1983-12-06
1984	1984-01-18	1984-12-15
1985	1985-03-16	1985-12-17
1986	1986-01-16	1986-12-17
1987	1987-01-05	1987-12-05
1988	1988-01-01	1988-12-11
1989	1989-01-05	1989-12-01
1990	1990-02-01	1990-12-08
1991	1991-01-04	1991-12-16
1992	1992-03-27	1992-12-05
1994	1994-01-06	1994-12-21
1995	1995-01-27	1995-12-05
1998	1998-01-14	1998-12-20
2000	2000-05-05	2000-11-02
2001	2001-02-13	2001-12-25
2002	2002-01-01	2002-12-31
2003	2003-01-30	2003-12-22
2004	2004-01-08	2004-12-07
2005	2005-01-05	2005-12-24
2006	2006-01-02	2006-11-15
2007	2007-01-20	2007-12-23
2008	2008-02-23	2008-12-13
2009	2009-03-04	2009-12-19
2010	2010-02-05	2010-12-18
2023	2023-01-18	2023-12-27
2024	2024-01-08	2024-12-07
2025	2025-03-16	2025-12-21
2026	2026-02-23	2026-08-19

Every Fixed Threshold

Fixed thresholds at Princetown
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	110	50	1956	18
25 mm (0.98 in): Days with 25 mm or more rain	104	11	1971	4
50 mm (1.97 in): Days with 50 mm or more rain	23	3	2000	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1952	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1901.

Download the Data

Data for Princetown 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Princetown Threshold Days by Year

Key Facts for Princetown Thresholds

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

Every Fixed Threshold

Download the Data

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