Salem Threshold Days by Year (USC00127755)

19 fixed thresholds counted per year at Salem (USC00127755): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Salem Thresholds

Salem: nights with a minimum temperature at or below 0 C (32 F) in 102 years, most in 1917 with 142.
Salem: nights with a minimum temperature at or below -10 C (14 F) in 102 years, most in 1958 with 43.
Salem: nights with a minimum temperature at or above 20 C (68 F) in 102 years, most in 1935 with 55.
Salem: days with a maximum temperature at or above 30 C (86 F) in 101 years, most in 1901 with 108.
19 fixed thresholds have at least one qualifying day at Salem.

Days at or above 30 C (86 F)

101 years with a qualifying day

Days per year at Salem with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 108 in 1901.

Days at or above 30 C (86 F) per year at Salem
Year	Days	Decade average
1899	70	70
1900	102	87.2
1901	108	87.2
1902	99	87.2
1903	88	87.2
1904	89	87.2
1905	92	87.2
1906	77	87.2
1907	60	87.2
1908	102	87.2
1909	55	87.2
1910	58	69.9
1911	84	69.9
1912	57	69.9
1913	99	69.9
1914	86	69.9
1915	50	69.9
1916	71	69.9
1917	51	69.9
1918	61	69.9
1919	82	69.9
1920	42	58.2
1921	88	58.2
1922	78	58.2
1923	68	58.2
1924	51	58.2
1925	98	58.2
1926	60	58.2
1927	35	58.2
1928	19	58.2
1929	43	58.2
1930	71	70.8
1931	60	70.8
1932	62	70.8
1933	89	70.8
1934	78	70.8
1935	63	70.8
1936	86	70.8
1937	69	70.8
1938	57	70.8
1939	73	70.8
1941	102	73.6
1942	78	73.6
1943	86	73.6
1944	94	73.6
1945	52	73.6
1946	54	73.6
1947	65	73.6
1948	62	73.6
1949	69	73.6
1950	37	68.2
1951	79	68.2
1952	89	68.2
1953	95	68.2
1954	95	68.2
1955	76	68.2
1956	52	68.2
1957	49	68.2
1958	36	68.2
1959	74	68.2
1960	56	58
1961	53	58
1962	69	58
1963	55	58
1964	72	58
1965	55	58
1966	59	58
1967	41	58
1968	55	58
1969	65	58
1970	76	63.2
1971	64	63.2
1972	65	63.2
1973	67	63.2
1978	63	63.2
1979	44	63.2
1980	84	61.1
1981	50	61.1
1982	41	61.1
1983	85	61.1
1984	53	61.1
1985	36	61.1
1986	53	61.1
1987	78	61.1
1988	70	61.1
1990	46	54.7
1991	63	54.7
1992	22	54.7
1993	56	54.7
1994	57	54.7
1995	58	54.7
1996	48	54.7
1997	45	54.7
1998	73	54.7
1999	79	54.7
2000	31	50.2
2001	48	50.2
2002	79	50.2
2003	27	50.2
2004	65	50.2
2008	51	50.2

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

First to last qualifying date each year at Salem
Year	First date	Last date
1899	1899-04-30	1899-10-14
1900	1900-05-13	1900-10-19
1901	1901-04-28	1901-09-29
1902	1902-04-21	1902-09-22
1903	1903-05-09	1903-10-04
1904	1904-05-06	1904-10-18
1905	1905-04-28	1905-09-29
1906	1906-04-27	1906-09-19
1907	1907-03-21	1907-09-20
1908	1908-05-11	1908-10-20
1909	1909-06-06	1909-09-20
1910	1910-03-24	1910-10-03
1911	1911-05-15	1911-10-06
1912	1912-05-22	1912-10-09
1913	1913-05-01	1913-10-10
1914	1914-05-20	1914-10-07
1915	1915-04-19	1915-09-18
1916	1916-05-06	1916-10-08
1917	1917-04-18	1917-09-15
1918	1918-05-22	1918-10-05
1919	1919-05-29	1919-10-04
1920	1920-05-23	1920-09-26
1921	1921-05-19	1921-09-29
1922	1922-05-09	1922-10-06
1923	1923-05-07	1923-09-28
1924	1924-06-08	1924-09-21
1925	1925-04-07	1925-09-26
1926	1926-05-01	1926-09-24
1927	1927-05-21	1927-09-24
1928	1928-05-10	1928-08-29
1929	1929-03-24	1929-09-06
1930	1930-04-11	1930-09-23
1931	1931-05-27	1931-10-03
1932	1932-05-15	1932-09-15
1933	1933-05-20	1933-09-26
1934	1934-05-04	1934-09-25
1935	1935-04-26	1935-10-13
1936	1936-05-06	1936-09-22
1937	1937-05-26	1937-10-01
1938	1938-04-26	1938-09-27
1939	1939-05-23	1939-10-19
1941	1941-04-13	1941-10-06
1942	1942-04-25	1942-10-03
1943	1943-05-05	1943-10-20
1944	1944-05-11	1944-09-20
1945	1945-05-27	1945-09-24
1946	1946-04-03	1946-10-07
1947	1947-05-15	1947-10-22
1948	1948-04-24	1948-09-20
1949	1949-05-03	1949-08-27
1950	1950-05-04	1950-10-30
1951	1951-04-28	1951-10-05
1952	1952-05-02	1952-10-01
1953	1953-05-24	1953-10-21
1954	1954-04-25	1954-10-05
1955	1955-05-03	1955-09-29
1956	1956-05-12	1956-09-14
1957	1957-05-13	1957-09-11
1958	1958-06-05	1958-09-06
1959	1959-05-02	1959-10-05
1960	1960-04-23	1960-09-26
1961	1961-06-01	1961-10-12
1962	1962-04-30	1962-09-14
1963	1963-05-08	1963-10-23
1964	1964-05-18	1964-09-22
1965	1965-05-07	1965-09-21
1966	1966-05-23	1966-09-03
1967	1967-05-25	1967-10-04
1968	1968-06-06	1968-09-23
1969	1969-05-05	1969-09-07
1970	1970-04-29	1970-09-24
1971	1971-05-17	1971-10-02
1972	1972-05-25	1972-09-20
1973	1973-06-03	1973-09-28
1978	1978-05-27	1978-09-21
1979	1979-05-10	1979-09-12
1980	1980-05-28	1980-09-21
1981	1981-04-27	1981-09-13
1982	1982-05-12	1982-09-14
1983	1983-06-10	1983-09-20
1984	1984-06-08	1984-09-22
1985	1985-05-30	1985-09-10
1986	1986-05-29	1986-09-29
1987	1987-05-14	1987-09-28
1988	1988-05-15	1988-09-14
1990	1990-06-08	1990-09-07
1991	1991-05-14	1991-09-16
1992	1992-06-17	1992-09-09
1993	1993-04-28	1993-09-14
1994	1994-05-23	1994-09-16
1995	1995-06-06	1995-09-15
1996	1996-05-17	1996-09-06
1997	1997-06-19	1997-10-07
1998	1998-05-13	1998-09-30
1999	1999-06-05	1999-09-29
2000	2000-05-24	2000-09-04
2001	2001-05-15	2001-09-08
2002	2002-05-31	2002-09-19
2003	2003-07-01	2003-09-01
2004	2004-06-08	2004-09-25
2008	2008-05-31	2008-09-13

Every Fixed Threshold

Fixed thresholds at Salem
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	101	108	1901	51
35 C (95 F): Days	80	43	1901	2
40 C (104 F): Days	7	5	1901	2
90 F (32.2 C): Days	101	80	1901	16
100 F (37.8 C): Days	30	14	1901	2
110 F (43.3 C): Days	1	1	1901	1
0 C (32 F): Ice days (max	101	48	1978	24
0 C (32 F): Frost days (min	102	142	1917	109
-10 C (14 F): Days with min	102	43	1958	23
-20 C (-4 F): Days with min	68	13	1918	3
-30 C (-22 F): Days with min	7	3	1899	1
20 C (68 F): Tropical nights (min	102	55	1935	25
25 C (77 F): Days with min	20	3	1930	1
10 mm (0.39 in): Days with 10 mm or more rain	100	55	1927	42
25 mm (0.98 in): Days with 25 mm or more rain	100	25	1927	16
50 mm (1.97 in): Days with 50 mm or more rain	82	7	1948	4
100 mm (3.94 in): Days with 100 mm or more rain	10	3	1964	1
10 cm (3.9 in): Days with 10 cm or more snowfall	39	4	1917	1
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1961	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1899.

Download the Data

Data for Salem 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).

Salem Threshold Days by Year (USC00127755)

Key Facts for Salem Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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