Winnibigoshish Dam Threshold Days by Year (USC00219059)

18 fixed thresholds counted per year at Winnibigoshish Dam (USC00219059): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Winnibigoshish Dam Thresholds

Winnibigoshish Dam: days with 10 mm (0.39 in) or more of precipitation in 119 years, most in 1944 with 34.
Winnibigoshish Dam: days with 25 mm (0.98 in) or more of precipitation in 117 years, most in 1899 with 9.
Winnibigoshish Dam: days with a maximum temperature at or above 30 C (86 F) in 89 years, most in 1970 with 38.
Winnibigoshish Dam: days with a maximum temperature at or below 0 C (32 F) in 89 years, most in 1955 with 128.
18 fixed thresholds have at least one qualifying day at Winnibigoshish Dam.

Days at or above 30 C (86 F)

89 years with a qualifying day

Days per year at Winnibigoshish Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 38 in 1970.

Days at or above 30 C (86 F) per year at Winnibigoshish Dam
Year	Days	Decade average
1898	11	7
1899	3	7
1900	10	7.8
1901	21	7.8
1902	5	7.8
1903	2	7.8
1904	1	7.8
1905	4	7.8
1906	14	7.8
1907	2	7.8
1908	10	7.8
1909	9	7.8
1910	30	17.4
1911	17	17.4
1912	14	17.4
1913	18	17.4
1914	18	17.4
1915	3	17.4
1916	28	17.4
1917	19	17.4
1918	10	17.4
1919	17	17.4
1920	5	11.7
1921	28	11.7
1922	19	11.7
1923	19	11.7
1924	4	11.7
1926	9	11.7
1927	5	11.7
1928	4	11.7
1929	12	11.7
1930	23	19.8
1931	28	19.8
1932	17	19.8
1933	31	19.8
1934	15	19.8
1935	14	19.8
1936	25	19.8
1937	18	19.8
1938	10	19.8
1939	17	19.8
1940	12	11.6
1941	18	11.6
1942	6	11.6
1943	14	11.6
1944	7	11.6
1945	9	11.6
1946	7	11.6
1947	17	11.6
1948	13	11.6
1949	13	11.6
1950	3	13.1
1951	5	13.1
1952	9	13.1
1953	18	13.1
1954	10	13.1
1955	29	13.1
1956	5	13.1
1957	17	13.1
1958	16	13.1
1959	19	13.1
1960	21	16.3
1961	31	16.3
1962	4	16.3
1963	24	16.3
1964	24	16.3
1965	6	16.3
1966	21	16.3
1967	14	16.3
1968	3	16.3
1969	15	16.3
1970	38	18.2
1971	10	18.2
1972	12	18.2
1973	10	18.2
1974	12	18.2
1975	22	18.2
1976	31	18.2
1977	22	18.2
1978	16	18.2
1979	9	18.2
1980	21	12.4
1981	5	12.4
1982	3	12.4
1983	16	12.4
1984	21	12.4
1985	1	12.4
1986	13	12.4
1987	19	12.4

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

First to last qualifying date each year at Winnibigoshish Dam
Year	First date	Last date
1898	1898-06-22	1898-09-21
1899	1899-07-11	1899-08-28
1900	1900-05-12	1900-08-31
1901	1901-06-26	1901-09-04
1902	1902-06-29	1902-07-24
1903	1903-07-09	1903-07-22
1904	1904-07-16	1904-07-16
1905	1905-06-13	1905-08-28
1906	1906-07-08	1906-09-09
1907	1907-07-07	1907-08-31
1908	1908-07-09	1908-09-22
1909	1909-06-19	1909-08-27
1910	1910-06-13	1910-08-20
1911	1911-05-17	1911-08-20
1912	1912-06-23	1912-09-08
1913	1913-05-27	1913-09-06
1914	1914-06-09	1914-08-08
1915	1915-09-04	1915-09-06
1916	1916-07-01	1916-08-19
1917	1917-06-17	1917-08-22
1918	1918-05-05	1918-08-05
1919	1919-05-27	1919-08-19
1920	1920-06-12	1920-08-10
1921	1921-05-21	1921-09-02
1922	1922-06-06	1922-09-22
1923	1923-06-01	1923-09-04
1924	1924-08-25	1924-08-29
1926	1926-05-05	1926-08-27
1927	1927-06-28	1927-09-14
1928	1928-05-23	1928-08-14
1929	1929-06-16	1929-09-04
1930	1930-05-21	1930-08-31
1931	1931-05-15	1931-09-12
1932	1932-05-13	1932-08-30
1933	1933-06-01	1933-09-05
1934	1934-05-19	1934-08-18
1935	1935-07-03	1935-09-24
1936	1936-06-24	1936-09-22
1937	1937-05-29	1937-08-26
1938	1938-06-21	1938-08-22
1939	1939-05-05	1939-09-14
1940	1940-06-17	1940-09-19
1941	1941-06-18	1941-08-06
1942	1942-04-22	1942-08-21
1943	1943-06-18	1943-08-31
1944	1944-06-25	1944-08-10
1945	1945-06-22	1945-09-05
1946	1946-06-16	1946-08-03
1947	1947-07-15	1947-09-09
1948	1948-06-02	1948-09-03
1949	1949-05-03	1949-08-24
1950	1950-05-23	1950-07-29
1951	1951-07-14	1951-08-01
1952	1952-04-27	1952-09-11
1953	1953-05-07	1953-09-02
1954	1954-06-13	1954-08-24
1955	1955-05-21	1955-09-03
1956	1956-06-09	1956-06-13
1957	1957-07-02	1957-08-09
1958	1958-06-28	1958-08-16
1959	1959-05-02	1959-08-24
1960	1960-07-08	1960-09-05
1961	1961-05-31	1961-09-03
1962	1962-06-28	1962-08-28
1963	1963-06-03	1963-10-05
1964	1964-05-21	1964-08-07
1965	1965-07-22	1965-08-14
1966	1966-06-20	1966-08-27
1967	1967-06-30	1967-08-25
1968	1968-08-05	1968-08-07
1969	1969-05-27	1969-08-30
1970	1970-06-06	1970-09-06
1971	1971-06-16	1971-09-04
1972	1972-05-17	1972-08-30
1973	1973-07-06	1973-08-30
1974	1974-07-02	1974-07-19
1975	1975-05-20	1975-08-25
1976	1976-06-06	1976-09-12
1977	1977-04-10	1977-07-25
1978	1978-05-26	1978-09-07
1979	1979-06-15	1979-09-05
1980	1980-04-21	1980-07-15
1981	1981-07-06	1981-07-13
1982	1982-07-05	1982-07-20
1983	1983-06-25	1983-09-03
1984	1984-07-12	1984-08-29
1985	1985-07-07	1985-07-07
1986	1986-05-27	1986-07-24
1987	1987-06-13	1987-08-11

Every Fixed Threshold

Fixed thresholds at Winnibigoshish Dam
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	89	38	1970	19
35 C (95 F): Days	29	9	1936	1
90 F (32.2 C): Days	71	18	1936	8
100 F (37.8 C): Days	5	3	1936	3
0 C (32 F): Ice days (max	89	128	1955	73
0 C (32 F): Frost days (min	88	212	1907	171
-10 C (14 F): Days with min	88	125	1950	56
-20 C (-4 F): Days with min	88	70	1950	10
-30 C (-22 F): Days with min	88	33	1936	3
-40 C (-40 F): Days with min	24	4	1912	1
20 C (68 F): Tropical nights (min	69	12	1936	2
25 C (77 F): Days with min	3	1	1911	1
10 mm (0.39 in): Days with 10 mm or more rain	119	34	1944	11
25 mm (0.98 in): Days with 25 mm or more rain	117	9	1899	5
50 mm (1.97 in): Days with 50 mm or more rain	69	3	1942	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1895	1
10 cm (3.9 in): Days with 10 cm or more snowfall	58	8	1937	8
25 cm (9.8 in): Days with 25 cm or more snowfall	9	1	1948	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1898.

Download the Data

Data for Winnibigoshish Dam 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Winnibigoshish Dam Threshold Days by Year (USC00219059)

Key Facts for Winnibigoshish Dam Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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