Fitchburg 4 SE Threshold Days by Year (USC00192806)

17 fixed thresholds counted per year at Fitchburg 4 SE (USC00192806): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Fitchburg 4 SE Thresholds

Fitchburg 4 SE: days with a maximum temperature at or above 30 C (86 F) in 86 years, most in 1955 with 55.
Fitchburg 4 SE: days with a maximum temperature at or above 90 F (32.2 C) in 86 years, most in 1944 with 37.
Fitchburg 4 SE: days with a maximum temperature at or below 0 C (32 F) in 86 years, most in 1904 with 72.
Fitchburg 4 SE: nights with a minimum temperature at or below 0 C (32 F) in 83 years, most in 1972 with 174.
17 fixed thresholds have at least one qualifying day at Fitchburg 4 SE.

Days at or above 30 C (86 F)

86 years with a qualifying day

Days per year at Fitchburg 4 SE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 55 in 1955.

Days at or above 30 C (86 F) per year at Fitchburg 4 SE
Year	Days	Decade average
1893	23	24.7
1894	29	24.7
1895	31	24.7
1896	27	24.7
1897	12	24.7
1898	28	24.7
1899	23	24.7
1900	33	19.5
1901	24	19.5
1902	11	19.5
1903	16	19.5
1904	9	19.5
1905	15	19.5
1906	19	19.5
1907	16	19.5
1908	32	19.5
1909	20	19.5
1910	23	21.4
1911	28	21.4
1912	23	21.4
1913	26	21.4
1914	25	21.4
1915	14	21.4
1916	17	21.4
1917	13	21.4
1918	23	21.4
1919	22	21.4
1920	14	23.7
1921	24	23.7
1922	18	23.7
1923	23	23.7
1924	26	23.7
1925	24	23.7
1926	15	23.7
1927	26	23.7
1928	21	23.7
1929	46	23.7
1930	48	43.9
1931	46	43.9
1932	47	43.9
1933	34	43.9
1934	41	43.9
1935	41	43.9
1936	37	43.9
1937	52	43.9
1938	46	43.9
1939	47	43.9
1940	28	38.8
1941	46	38.8
1942	37	38.8
1943	38	38.8
1944	54	38.8
1945	39	38.8
1946	32	38.8
1947	39	38.8
1948	31	38.8
1949	44	38.8
1950	29	35.5
1951	25	35.5
1952	41	35.5
1953	41	35.5
1954	19	35.5
1955	55	35.5
1956	28	35.5
1957	42	35.5
1958	23	35.5
1959	52	35.5
1960	24	37.4
1961	45	37.4
1962	25	37.4
1963	39	37.4
1964	37	37.4
1965	49	37.4
1966	52	37.4
1967	32	37.4
1968	34	37.4
1969	37	37.4
1970	39	35.4
1971	52	35.4
1972	26	35.4
1973	42	35.4
1974	40	35.4
1975	43	35.4
1976	27	35.4
1977	29	35.4
1978	21	35.4

For each year, a bar from the first to the last day at Fitchburg 4 SE meeting 30 C (86 F).

First to last qualifying date each year at Fitchburg 4 SE
Year	First date	Last date
1893	1893-05-11	1893-08-26
1894	1894-06-11	1894-09-10
1895	1895-05-04	1895-09-23
1896	1896-04-16	1896-09-11
1897	1897-06-25	1897-09-11
1898	1898-06-08	1898-09-07
1899	1899-05-01	1899-08-31
1900	1900-05-15	1900-09-12
1901	1901-05-22	1901-09-07
1902	1902-05-23	1902-09-01
1903	1903-05-17	1903-09-15
1904	1904-05-26	1904-08-01
1905	1905-06-15	1905-08-22
1906	1906-05-16	1906-09-19
1907	1907-06-18	1907-08-20
1908	1908-05-26	1908-10-18
1909	1909-06-03	1909-08-25
1910	1910-05-24	1910-08-14
1911	1911-05-11	1911-08-15
1912	1912-05-24	1912-08-25
1913	1913-05-03	1913-09-02
1914	1914-05-26	1914-09-24
1915	1915-04-27	1915-09-17
1916	1916-05-29	1916-09-14
1917	1917-06-20	1917-08-21
1918	1918-05-06	1918-08-23
1919	1919-05-29	1919-09-08
1920	1920-05-28	1920-09-26
1921	1921-05-21	1921-09-29
1922	1922-05-29	1922-10-02
1923	1923-04-21	1923-09-01
1924	1924-06-22	1924-09-02
1925	1925-06-02	1925-08-26
1926	1926-06-24	1926-08-07
1927	1927-04-19	1927-08-07
1928	1928-06-14	1928-08-30
1929	1929-04-08	1929-09-07
1930	1930-05-01	1930-09-16
1931	1931-05-19	1931-09-22
1932	1932-05-15	1932-09-02
1933	1933-05-26	1933-09-27
1934	1934-05-22	1934-08-27
1935	1935-04-27	1935-10-14
1936	1936-05-01	1936-09-23
1937	1937-05-04	1937-09-04
1938	1938-04-20	1938-10-17
1939	1939-05-07	1939-10-10
1940	1940-06-03	1940-09-21
1941	1941-04-20	1941-10-05
1942	1942-04-25	1942-09-17
1943	1943-06-02	1943-09-07
1944	1944-05-04	1944-10-07
1945	1945-03-29	1945-09-25
1946	1946-05-25	1946-10-07
1947	1947-05-13	1947-10-17
1948	1948-06-05	1948-09-19
1949	1949-05-06	1949-10-11
1950	1950-06-08	1950-08-30
1951	1951-05-16	1951-09-13
1952	1952-06-16	1952-09-30
1953	1953-05-11	1953-10-04
1954	1954-04-22	1954-10-13
1955	1955-05-05	1955-09-20
1956	1956-06-01	1956-09-06
1957	1957-04-22	1957-09-14
1958	1958-05-20	1958-09-27
1959	1959-05-12	1959-09-25
1960	1960-06-06	1960-09-09
1961	1961-05-15	1961-09-24
1962	1962-04-28	1962-09-11
1963	1963-05-10	1963-10-08
1964	1964-05-08	1964-10-17
1965	1965-05-10	1965-10-20
1966	1966-05-28	1966-09-11
1967	1967-06-03	1967-09-18
1968	1968-06-07	1968-10-03
1969	1969-04-29	1969-09-03
1970	1970-05-11	1970-09-26
1971	1971-06-08	1971-10-03
1972	1972-05-24	1972-09-18
1973	1973-04-23	1973-09-05
1974	1974-04-30	1974-09-13
1975	1975-05-20	1975-08-28
1976	1976-04-18	1976-09-15
1977	1977-03-31	1977-08-30
1978	1978-05-21	1978-08-18

Every Fixed Threshold

Fixed thresholds at Fitchburg 4 SE
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	86	55	1955	21
35 C (95 F): Days	63	16	1944	1
40 C (104 F): Days	1	1	1975	1
90 F (32.2 C): Days	86	37	1944	6
100 F (37.8 C): Days	12	5	1911	2
0 C (32 F): Ice days (max	86	72	1904	40
0 C (32 F): Frost days (min	83	174	1972	161
-10 C (14 F): Days with min	83	64	1970	55
-20 C (-4 F): Days with min	69	10	1971	4
20 C (68 F): Tropical nights (min	82	20	1898	4
25 C (77 F): Days with min	4	1	1911	1
10 mm (0.39 in): Days with 10 mm or more rain	78	53	1953	35
25 mm (0.98 in): Days with 25 mm or more rain	78	19	1951	5
50 mm (1.97 in): Days with 50 mm or more rain	59	5	1938	2
100 mm (3.94 in): Days with 100 mm or more rain	7	2	1944	1
10 cm (3.9 in): Days with 10 cm or more snowfall	32	13	1956	2
25 cm (9.8 in): Days with 25 cm or more snowfall	16	4	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 1893.

Download the Data

Data for Fitchburg 4 SE 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).

Fitchburg 4 SE Threshold Days by Year (USC00192806)

Key Facts for Fitchburg 4 SE Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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