Fortine 1 N Threshold Days by Year (USC00243139)

17 fixed thresholds counted per year at Fortine 1 N (USC00243139): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Fortine 1 N Thresholds

Fortine 1 N: days with a maximum temperature at or above 30 C (86 F) in 91 years, most in 1922 with 58.
Fortine 1 N: days with a maximum temperature at or below 0 C (32 F) in 91 years, most in 1985 with 82.
Fortine 1 N: nights with a minimum temperature at or below 0 C (32 F) in 91 years, most in 1935 with 247.
Fortine 1 N: nights with a minimum temperature at or below -10 C (14 F) in 91 years, most in 1922 with 82.
17 fixed thresholds have at least one qualifying day at Fortine 1 N.

Days at or above 30 C (86 F)

91 years with a qualifying day

Days per year at Fortine 1 N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 58 in 1922.

Days at or above 30 C (86 F) per year at Fortine 1 N
Year	Days	Decade average
1907	3	9
1908	19	9
1909	5	9
1910	29	29
1911	17	29
1912	16	29
1913	21	29
1914	33	29
1915	28	29
1918	38	29
1919	50	29
1922	58	36.9
1923	43	36.9
1924	46	36.9
1925	49	36.9
1926	24	36.9
1927	23	36.9
1928	24	36.9
1929	28	36.9
1930	27	29.1
1931	36	29.1
1932	22	29.1
1933	31	29.1
1934	22	29.1
1935	17	29.1
1936	45	29.1
1937	26	29.1
1938	32	29.1
1939	33	29.1
1940	34	21.3
1941	24	21.3
1942	25	21.3
1943	15	21.3
1944	20	21.3
1945	27	21.3
1946	21	21.3
1947	20	21.3
1948	5	21.3
1949	22	21.3
1950	14	21.7
1951	24	21.7
1952	17	21.7
1953	21	21.7
1954	4	21.7
1955	29	21.7
1956	24	21.7
1957	16	21.7
1958	44	21.7
1959	24	21.7
1960	34	28.4
1961	42	28.4
1962	23	28.4
1963	26	28.4
1964	11	28.4
1965	19	28.4
1966	21	28.4
1967	53	28.4
1968	22	28.4
1969	33	28.4
1970	51	33.9
1971	37	33.9
1972	30	33.9
1973	48	33.9
1974	34	33.9
1975	25	33.9
1976	17	33.9
1977	28	33.9
1978	26	33.9
1979	43	33.9
1980	13	27.5
1981	30	27.5
1982	23	27.5
1983	20	27.5
1984	29	27.5
1985	33	27.5
1986	27	27.5
1987	45	27.5
1991	28	36.4
1992	35	36.4
1994	45	36.4
1998	50	36.4
1999	24	36.4
2000	33	33.4
2001	38	33.4
2002	26	33.4
2003	49	33.4
2004	24	33.4
2005	19	33.4
2006	33	33.4
2007	45	33.4
2008	34	33.4

For each year, a bar from the first to the last day at Fortine 1 N meeting 30 C (86 F).

First to last qualifying date each year at Fortine 1 N
Year	First date	Last date
1907	1907-07-30	1907-08-02
1908	1908-06-24	1908-08-19
1909	1909-07-02	1909-09-07
1910	1910-04-24	1910-08-20
1911	1911-06-11	1911-09-11
1912	1912-06-07	1912-08-25
1913	1913-06-01	1913-08-26
1914	1914-06-17	1914-09-03
1915	1915-06-23	1915-08-29
1918	1918-06-07	1918-09-20
1919	1919-06-18	1919-08-30
1922	1922-06-02	1922-09-25
1923	1923-06-10	1923-09-14
1924	1924-05-10	1924-09-16
1925	1925-05-19	1925-09-03
1926	1926-04-29	1926-08-25
1927	1927-06-07	1927-08-19
1928	1928-05-21	1928-09-05
1929	1929-07-01	1929-08-31
1930	1930-07-05	1930-09-04
1931	1931-05-13	1931-09-03
1932	1932-06-13	1932-08-27
1933	1933-06-12	1933-08-29
1934	1934-05-25	1934-09-06
1935	1935-07-12	1935-09-09
1936	1936-05-26	1936-08-30
1937	1937-06-02	1937-09-17
1938	1938-06-29	1938-09-23
1939	1939-04-28	1939-08-27
1940	1940-05-10	1940-09-11
1941	1941-05-23	1941-08-21
1942	1942-06-29	1942-08-23
1943	1943-07-06	1943-09-12
1944	1944-06-30	1944-09-13
1945	1945-06-21	1945-08-29
1946	1946-07-11	1946-08-22
1947	1947-07-02	1947-08-06
1948	1948-06-06	1948-07-22
1949	1949-05-11	1949-09-01
1950	1950-06-20	1950-09-03
1951	1951-07-12	1951-08-21
1952	1952-07-08	1952-09-26
1953	1953-07-07	1953-09-11
1954	1954-07-04	1954-07-19
1955	1955-06-11	1955-09-06
1956	1956-05-31	1956-09-09
1957	1957-06-01	1957-09-27
1958	1958-05-22	1958-09-12
1959	1959-06-12	1959-08-08
1960	1960-05-11	1960-09-03
1961	1961-05-25	1961-08-29
1962	1962-06-24	1962-09-06
1963	1963-06-15	1963-09-10
1964	1964-07-07	1964-08-17
1965	1965-06-10	1965-08-19
1966	1966-05-26	1966-09-22
1967	1967-06-20	1967-09-28
1968	1968-06-26	1968-09-10
1969	1969-06-04	1969-09-12
1970	1970-06-02	1970-08-31
1971	1971-06-22	1971-08-28
1972	1972-05-30	1972-08-29
1973	1973-05-14	1973-09-11
1974	1974-06-12	1974-09-25
1975	1975-07-02	1975-09-15
1976	1976-06-29	1976-09-01
1977	1977-04-24	1977-08-21
1978	1978-06-04	1978-09-03
1979	1979-05-23	1979-09-15
1980	1980-07-08	1980-10-07
1981	1981-06-25	1981-09-18
1982	1982-06-12	1982-09-03
1983	1983-05-28	1983-08-30
1984	1984-05-29	1984-09-18
1985	1985-05-22	1985-08-25
1986	1986-05-25	1986-08-28
1987	1987-06-04	1987-09-21
1991	1991-07-02	1991-09-07
1992	1992-05-06	1992-08-19
1994	1994-05-26	1994-09-25
1998	1998-07-03	1998-09-16
1999	1999-05-25	1999-09-22
2000	2000-07-12	2000-08-23
2001	2001-05-23	2001-09-24
2002	2002-06-26	2002-09-16
2003	2003-05-24	2003-09-07
2004	2004-07-14	2004-08-18
2005	2005-06-21	2005-08-16
2006	2006-05-16	2006-09-09
2007	2007-06-02	2007-08-30
2008	2008-05-18	2008-08-26

Every Fixed Threshold

Fixed thresholds at Fortine 1 N
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	91	58	1922	34
35 C (95 F): Days	70	13	1967	8
40 C (104 F): Days	2	1	1961	1
90 F (32.2 C): Days	89	38	1970	12
100 F (37.8 C): Days	17	4	2002	2
0 C (32 F): Ice days (max	91	82	1985	48
0 C (32 F): Frost days (min	91	247	1935	178
-10 C (14 F): Days with min	91	82	1922	35
-20 C (-4 F): Days with min	89	35	1922	12
-30 C (-22 F): Days with min	63	16	1922	1
-40 C (-40 F): Days with min	12	4	1922	2
20 C (68 F): Tropical nights (min	1	1	1919	1
10 mm (0.39 in): Days with 10 mm or more rain	91	20	1961	7
25 mm (0.98 in): Days with 25 mm or more rain	60	5	1998	1
50 mm (1.97 in): Days with 50 mm or more rain	3	1	1930	1
10 cm (3.9 in): Days with 10 cm or more snowfall	83	10	1964	2
25 cm (9.8 in): Days with 25 cm or more snowfall	9	2	1954	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1907.

Download the Data

Data for Fortine 1 N 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).

Fortine 1 N Threshold Days by Year (USC00243139)

Key Facts for Fortine 1 N Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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