Plymouth-Kingston Threshold Days by Year (USC00196486)

17 fixed thresholds counted per year at Plymouth-Kingston (USC00196486): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Plymouth-Kingston Thresholds

Plymouth-Kingston: days with 10 mm (0.39 in) or more of precipitation in 108 years, most in 1983 with 62.
Plymouth-Kingston: days with 25 mm (0.98 in) or more of precipitation in 108 years, most in 1983 with 23.
Plymouth-Kingston: nights with a minimum temperature at or below 0 C (32 F) in 102 years, most in 1972 with 165.
Plymouth-Kingston: nights with a minimum temperature at or below -10 C (14 F) in 102 years, most in 1989 with 56.
17 fixed thresholds have at least one qualifying day at Plymouth-Kingston.

Days at or above 30 C (86 F)

98 years with a qualifying day

Days per year at Plymouth-Kingston with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 49 in 1959.

Days at or above 30 C (86 F) per year at Plymouth-Kingston
Year	Days	Decade average
1906	7	7.7
1907	8	7.7
1909	8	7.7
1910	4	6.6
1911	9	6.6
1912	12	6.6
1913	6	6.6
1914	6	6.6
1915	5	6.6
1916	5	6.6
1917	6	6.6
1920	6	8
1922	6	8
1924	9	8
1926	7	8
1928	8	8
1929	12	8
1930	18	15.8
1934	10	15.8
1935	12	15.8
1936	9	15.8
1938	24	15.8
1939	22	15.8
1940	14	28.8
1941	27	28.8
1942	24	28.8
1943	28	28.8
1944	34	28.8
1945	26	28.8
1946	20	28.8
1947	38	28.8
1948	32	28.8
1949	45	28.8
1950	21	31.1
1951	21	31.1
1952	35	31.1
1953	41	31.1
1954	16	31.1
1955	47	31.1
1956	22	31.1
1957	39	31.1
1958	20	31.1
1959	49	31.1
1960	26	23.3
1961	35	23.3
1962	18	23.3
1963	25	23.3
1964	18	23.3
1965	40	23.3
1966	21	23.3
1967	8	23.3
1968	20	23.3
1969	22	23.3
1970	19	20
1971	25	20
1972	8	20
1973	28	20
1974	21	20
1975	21	20
1976	19	20
1977	22	20
1978	16	20
1979	21	20
1980	39	23.6
1981	20	23.6
1982	15	23.6
1983	35	23.6
1984	22	23.6
1985	11	23.6
1986	11	23.6
1987	16	23.6
1988	39	23.6
1989	28	23.6
1990	10	24.7
1991	40	24.7
1992	12	24.7
1993	30	24.7
1994	27	24.7
1995	34	24.7
1996	15	24.7
1997	25	24.7
1998	25	24.7
1999	29	24.7
2000	19	27.6
2001	24	27.6
2002	25	27.6
2003	24	27.6
2004	19	27.6
2005	42	27.6
2006	32	27.6
2007	36	27.6
2008	31	27.6
2009	24	27.6
2010	42	31.2
2011	27	31.2
2012	32	31.2
2013	32	31.2
2014	23	31.2

For each year, a bar from the first to the last day at Plymouth-Kingston meeting 30 C (86 F).

First to last qualifying date each year at Plymouth-Kingston
Year	First date	Last date
1906	1906-07-23	1906-08-24
1907	1907-06-19	1907-08-14
1909	1909-06-23	1909-08-10
1910	1910-07-02	1910-07-25
1911	1911-05-23	1911-07-13
1912	1912-06-25	1912-09-12
1913	1913-06-17	1913-08-18
1914	1914-05-27	1914-08-18
1915	1915-07-18	1915-09-18
1916	1916-07-09	1916-08-09
1917	1917-07-23	1917-08-03
1920	1920-06-02	1920-08-10
1922	1922-06-08	1922-08-17
1924	1924-06-25	1924-09-01
1926	1926-06-30	1926-09-25
1928	1928-07-19	1928-08-30
1929	1929-05-29	1929-09-03
1930	1930-05-06	1930-09-16
1934	1934-06-30	1934-08-11
1935	1935-05-28	1935-08-23
1936	1936-05-19	1936-09-09
1938	1938-04-28	1938-10-17
1939	1939-05-28	1939-09-16
1940	1940-06-03	1940-08-17
1941	1941-05-22	1941-09-17
1942	1942-05-30	1942-09-03
1943	1943-06-02	1943-09-07
1944	1944-05-04	1944-09-15
1945	1945-03-29	1945-09-08
1946	1946-05-26	1946-08-10
1947	1947-05-13	1947-09-13
1948	1948-06-24	1948-09-18
1949	1949-05-19	1949-10-10
1950	1950-06-08	1950-08-29
1951	1951-05-15	1951-09-13
1952	1952-06-26	1952-09-13
1953	1953-06-06	1953-09-07
1954	1954-04-21	1954-10-13
1955	1955-05-24	1955-09-18
1956	1956-05-31	1956-08-29
1957	1957-04-21	1957-09-16
1958	1958-06-30	1958-09-26
1959	1959-05-12	1959-09-24
1960	1960-06-26	1960-09-09
1961	1961-06-02	1961-09-13
1962	1962-04-27	1962-08-26
1963	1963-06-05	1963-10-07
1964	1964-05-08	1964-08-31
1965	1965-05-26	1965-09-23
1966	1966-06-06	1966-09-03
1967	1967-06-11	1967-08-19
1968	1968-06-07	1968-08-26
1969	1969-06-14	1969-09-02
1970	1970-05-11	1970-09-24
1971	1971-06-09	1971-09-17
1972	1972-07-03	1972-07-26
1973	1973-06-09	1973-09-05
1974	1974-05-18	1974-09-14
1975	1975-05-21	1975-08-23
1976	1976-04-19	1976-09-15
1977	1977-05-18	1977-09-03
1978	1978-05-21	1978-08-30
1979	1979-05-10	1979-08-06
1980	1980-05-23	1980-09-23
1981	1981-05-26	1981-08-06
1982	1982-07-09	1982-09-11
1983	1983-06-12	1983-09-21
1984	1984-06-06	1984-08-17
1985	1985-07-05	1985-09-09
1986	1986-05-19	1986-08-10
1987	1987-05-31	1987-08-20
1988	1988-06-13	1988-08-16
1989	1989-06-03	1989-09-11
1990	1990-04-28	1990-09-02
1991	1991-05-12	1991-09-17
1992	1992-05-23	1992-08-26
1993	1993-05-11	1993-09-15
1994	1994-06-17	1994-08-28
1995	1995-05-31	1995-09-01
1996	1996-05-20	1996-08-26
1997	1997-06-10	1997-08-17
1998	1998-05-18	1998-08-30
1999	1999-05-31	1999-09-04
2000	2000-05-07	2000-09-11
2001	2001-05-02	2001-08-10
2002	2002-04-17	2002-10-02
2003	2003-06-25	2003-08-30
2004	2004-05-07	2004-09-04
2005	2005-04-20	2005-09-12
2006	2006-06-01	2006-08-14
2007	2007-05-24	2007-10-05
2008	2008-06-03	2008-09-05
2009	2009-04-26	2009-08-26
2010	2010-04-07	2010-09-25
2011	2011-05-27	2011-10-09
2012	2012-04-16	2012-09-07
2013	2013-05-21	2013-09-12
2014	2014-06-18	2014-09-28

Every Fixed Threshold

Fixed thresholds at Plymouth-Kingston
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	98	49	1959	23
35 C (95 F): Days	51	13	1949	5
90 F (32.2 C): Days	94	30	1949	8
100 F (37.8 C): Days	11	6	1949	1
0 C (32 F): Ice days (max	98	50	1916	19
0 C (32 F): Frost days (min	102	165	1972	149
-10 C (14 F): Days with min	102	56	1989	43
-20 C (-4 F): Days with min	34	7	1979	1
20 C (68 F): Tropical nights (min	101	39	2010	10
25 C (77 F): Days with min	7	4	2007	1
10 mm (0.39 in): Days with 10 mm or more rain	108	62	1983	42
25 mm (0.98 in): Days with 25 mm or more rain	108	23	1983	15
50 mm (1.97 in): Days with 50 mm or more rain	99	9	1998	6
100 mm (3.94 in): Days with 100 mm or more rain	21	2	1936	1
10 cm (3.9 in): Days with 10 cm or more snowfall	56	10	1970	3
25 cm (9.8 in): Days with 25 cm or more snowfall	25	3	2003	2
50 cm (19.7 in): Days with 50 cm or more snowfall	3	1	1978	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1906.

Download the Data

Data for Plymouth-Kingston 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).

Plymouth-Kingston Threshold Days by Year (USC00196486)

Key Facts for Plymouth-Kingston Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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