Fort Frances Threshold Days by Year (CA006022475)

19 fixed thresholds counted per year at Fort Frances (CA006022475): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Fort Frances Thresholds

Fort Frances: days with 10 mm (0.39 in) or more of precipitation in 71 years, most in 1949 with 31.
Fort Frances: days with a maximum temperature at or above 30 C (86 F) in 70 years, most in 1913 with 34.
Fort Frances: days with a maximum temperature at or below 0 C (32 F) in 70 years, most in 1926 with 141.
Fort Frances: nights with a minimum temperature at or below 0 C (32 F) in 69 years, most in 1893 with 218.
19 fixed thresholds have at least one qualifying day at Fort Frances.

Days at or above 30 C (86 F)

70 years with a qualifying day

Days per year at Fort Frances with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 34 in 1913.

Days at or above 30 C (86 F) per year at Fort Frances
Year	Days	Decade average
1892	6	5.5
1893	5	5.5
1913	34	18.3
1917	15	18.3
1918	7	18.3
1919	17	18.3
1920	3	6.6
1921	17	6.6
1922	3	6.6
1923	9	6.6
1924	2	6.6
1925	5	6.6
1926	4	6.6
1927	1	6.6
1928	5	6.6
1929	17	6.6
1930	20	16.4
1931	26	16.4
1932	10	16.4
1933	11	16.4
1934	11	16.4
1935	14	16.4
1936	27	16.4
1937	26	16.4
1938	7	16.4
1939	12	16.4
1940	11	10.6
1941	19	10.6
1942	2	10.6
1943	6	10.6
1944	4	10.6
1945	9	10.6
1946	11	10.6
1947	17	10.6
1948	16	10.6
1949	11	10.6
1950	4	8.2
1951	5	8.2
1952	14	8.2
1953	10	8.2
1954	4	8.2
1955	19	8.2
1956	4	8.2
1957	7	8.2
1958	5	8.2
1959	10	8.2
1960	7	7.3
1961	14	7.3
1962	1	7.3
1963	9	7.3
1964	13	7.3
1965	4	7.3
1966	11	7.3
1967	4	7.3
1968	1	7.3
1969	9	7.3
1970	20	10.5
1971	5	10.5
1972	6	10.5
1973	6	10.5
1974	7	10.5
1975	15	10.5
1976	18	10.5
1977	11	10.5
1978	11	10.5
1979	6	10.5
1980	21	13
1981	6	13
1982	2	13
1983	23	13

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

First to last qualifying date each year at Fort Frances
Year	First date	Last date
1892	1892-07-11	1892-08-17
1893	1893-06-13	1893-07-22
1913	1913-04-30	1913-10-27
1917	1917-07-07	1917-08-22
1918	1918-05-05	1918-08-04
1919	1919-05-25	1919-08-19
1920	1920-06-13	1920-08-09
1921	1921-06-16	1921-08-29
1922	1922-06-06	1922-08-14
1923	1923-06-01	1923-07-22
1924	1924-07-11	1924-08-29
1925	1925-05-30	1925-08-23
1926	1926-05-05	1926-08-01
1927	1927-06-30	1927-06-30
1928	1928-05-23	1928-08-12
1929	1929-05-27	1929-09-01
1930	1930-05-21	1930-09-23
1931	1931-05-14	1931-09-11
1932	1932-06-05	1932-08-30
1933	1933-05-18	1933-07-29
1934	1934-05-27	1934-08-18
1935	1935-07-03	1935-08-15
1936	1936-06-19	1936-09-22
1937	1937-05-29	1937-08-28
1938	1938-06-21	1938-09-01
1939	1939-05-29	1939-08-07
1940	1940-07-04	1940-08-15
1941	1941-05-19	1941-08-06
1942	1942-07-17	1942-08-20
1943	1943-06-23	1943-07-12
1944	1944-05-30	1944-08-10
1945	1945-06-22	1945-09-06
1946	1946-06-22	1946-08-06
1947	1947-07-03	1947-09-08
1948	1948-06-02	1948-09-04
1949	1949-06-11	1949-08-24
1950	1950-05-23	1950-07-29
1951	1951-07-24	1951-07-29
1952	1952-04-27	1952-09-27
1953	1953-05-07	1953-08-31
1954	1954-07-11	1954-07-28
1955	1955-05-21	1955-09-03
1956	1956-06-09	1956-06-12
1957	1957-07-11	1957-08-01
1958	1958-06-28	1958-08-11
1959	1959-06-04	1959-08-19
1960	1960-07-08	1960-08-17
1961	1961-06-04	1961-08-29
1962	1962-08-27	1962-08-27
1963	1963-06-24	1963-10-05
1964	1964-05-21	1964-08-05
1965	1965-07-23	1965-08-13
1966	1966-06-28	1966-08-27
1967	1967-07-10	1967-08-15
1968	1968-08-05	1968-08-05
1969	1969-05-27	1969-08-29
1970	1970-06-06	1970-09-05
1971	1971-08-08	1971-09-03
1972	1972-05-17	1972-08-12
1973	1973-06-02	1973-08-28
1974	1974-07-06	1974-07-18
1975	1975-06-28	1975-08-24
1976	1976-06-05	1976-09-07
1977	1977-05-13	1977-07-23
1978	1978-05-25	1978-09-05
1979	1979-07-09	1979-09-04
1980	1980-04-21	1980-09-07
1981	1981-07-05	1981-07-12
1982	1982-07-05	1982-07-20
1983	1983-06-11	1983-09-02

Every Fixed Threshold

Fixed thresholds at Fort Frances
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	70	34	1913	23
35 C (95 F): Days	13	8	1936	2
40 C (104 F): Days	2	3	1936	3
90 F (32.2 C): Days	54	18	1936	8
100 F (37.8 C): Days	4	5	1936	5
0 C (32 F): Ice days (max	70	141	1926	109
0 C (32 F): Frost days (min	69	218	1893	190
-10 C (14 F): Days with min	69	136	1893	79
-20 C (-4 F): Days with min	69	90	1893	35
-30 C (-22 F): Days with min	67	39	1893	9
-40 C (-40 F): Days with min	11	4	1966	1
20 C (68 F): Tropical nights (min	53	21	1937	7
25 C (77 F): Days with min	5	7	1936	7
10 mm (0.39 in): Days with 10 mm or more rain	71	31	1949	28
25 mm (0.98 in): Days with 25 mm or more rain	69	11	1947	6
50 mm (1.97 in): Days with 50 mm or more rain	31	3	1948	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1966	1
10 cm (3.9 in): Days with 10 cm or more snowfall	66	9	1947	4
25 cm (9.8 in): Days with 25 cm or more snowfall	5	1	1940	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1892.

Download the Data

Data for Fort Frances 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Fort Frances Threshold Days by Year (CA006022475)

Key Facts for Fort Frances Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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