Iroquois Falls Threshold Days by Year (CA006073810)

18 fixed thresholds counted per year at Iroquois Falls (CA006073810): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Iroquois Falls Thresholds

Iroquois Falls: days with a maximum temperature at or above 30 C (86 F) in 69 years, most in 1922 with 37.
Iroquois Falls: days with a maximum temperature at or below 0 C (32 F) in 69 years, most in 1928 with 145.
Iroquois Falls: nights with a minimum temperature at or below 0 C (32 F) in 69 years, most in 1929 with 238.
Iroquois Falls: nights with a minimum temperature at or below -10 C (14 F) in 69 years, most in 1926 with 144.
18 fixed thresholds have at least one qualifying day at Iroquois Falls.

Days at or above 30 C (86 F)

69 years with a qualifying day

Days per year at Iroquois Falls with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 37 in 1922.

Days at or above 30 C (86 F) per year at Iroquois Falls
Year	Days	Decade average
1915	4	11
1916	18	11
1917	9	11
1918	4	11
1919	20	11
1920	12	13.9
1921	24	13.9
1922	37	13.9
1923	31	13.9
1924	12	13.9
1925	4	13.9
1926	7	13.9
1927	4	13.9
1928	2	13.9
1929	6	13.9
1930	5	8.2
1931	15	8.2
1932	2	8.2
1933	9	8.2
1934	2	8.2
1935	10	8.2
1936	8	8.2
1937	14	8.2
1938	6	8.2
1939	11	8.2
1940	14	17.4
1941	17	17.4
1942	16	17.4
1943	9	17.4
1944	26	17.4
1945	13	17.4
1946	15	17.4
1947	34	17.4
1948	12	17.4
1949	18	17.4
1950	5	7.8
1951	6	7.8
1952	6	7.8
1953	8	7.8
1954	1	7.8
1955	27	7.8
1956	3	7.8
1957	8	7.8
1958	2	7.8
1959	12	7.8
1960	2	5.1
1961	3	5.1
1962	8	5.1
1963	14	5.1
1964	4	5.1
1965	2	5.1
1966	8	5.1
1967	4	5.1
1968	2	5.1
1969	4	5.1
1970	16	9.8
1971	6	9.8
1972	5	9.8
1973	5	9.8
1974	5	9.8
1975	19	9.8
1976	20	9.8
1977	8	9.8
1978	8	9.8
1979	6	9.8
1980	3	8.3
1981	10	8.3
1982	5	8.3
1983	15	8.3

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

First to last qualifying date each year at Iroquois Falls
Year	First date	Last date
1915	1915-07-12	1915-09-05
1916	1916-07-04	1916-08-20
1917	1917-07-23	1917-08-15
1918	1918-07-13	1918-07-24
1919	1919-05-28	1919-08-20
1920	1920-06-14	1920-09-25
1921	1921-05-21	1921-09-02
1922	1922-05-25	1922-09-01
1923	1923-05-31	1923-08-16
1924	1924-06-10	1924-08-05
1925	1925-06-05	1925-08-25
1926	1926-05-31	1926-08-02
1927	1927-06-28	1927-07-01
1928	1928-08-15	1928-08-16
1929	1929-05-28	1929-08-25
1930	1930-05-22	1930-08-04
1931	1931-05-28	1931-09-12
1932	1932-06-18	1932-08-31
1933	1933-06-10	1933-08-25
1934	1934-07-13	1934-07-19
1935	1935-07-03	1935-08-19
1936	1936-07-06	1936-09-23
1937	1937-05-30	1937-08-29
1938	1938-06-20	1938-07-31
1939	1939-07-06	1939-09-15
1940	1940-05-31	1940-08-15
1941	1941-05-20	1941-09-21
1942	1942-04-24	1942-08-31
1943	1943-05-23	1943-07-14
1944	1944-05-24	1944-08-15
1945	1945-06-24	1945-09-08
1946	1946-05-29	1946-09-18
1947	1947-06-21	1947-09-09
1948	1948-06-02	1948-09-06
1949	1949-06-02	1949-08-26
1950	1950-05-25	1950-07-12
1951	1951-05-20	1951-08-18
1952	1952-07-02	1952-08-26
1953	1953-07-14	1953-09-03
1954	1954-06-09	1954-06-09
1955	1955-05-22	1955-08-19
1956	1956-06-11	1956-06-14
1957	1957-06-18	1957-08-08
1958	1958-07-24	1958-07-27
1959	1959-05-26	1959-09-09
1960	1960-07-10	1960-08-19
1961	1961-07-13	1961-09-03
1962	1962-05-16	1962-07-07
1963	1963-06-02	1963-07-28
1964	1964-06-29	1964-07-24
1965	1965-06-19	1965-08-14
1966	1966-06-22	1966-07-12
1967	1967-06-02	1967-07-21
1968	1968-07-17	1968-08-24
1969	1969-06-26	1969-08-23
1970	1970-06-09	1970-08-15
1971	1971-06-17	1971-08-10
1972	1972-05-26	1972-07-12
1973	1973-07-23	1973-09-02
1974	1974-06-05	1974-08-07
1975	1975-05-19	1975-08-08
1976	1976-06-04	1976-09-08
1977	1977-05-16	1977-07-20
1978	1978-05-18	1978-08-15
1979	1979-06-07	1979-07-23
1980	1980-06-24	1980-08-23
1981	1981-06-15	1981-08-04
1982	1982-05-26	1982-07-07
1983	1983-06-12	1983-09-03

Every Fixed Threshold

Fixed thresholds at Iroquois Falls
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	69	37	1922	15
35 C (95 F): Days	18	6	1921	1
40 C (104 F): Days	1	1	1916	1
90 F (32.2 C): Days	50	20	1947	2
100 F (37.8 C): Days	2	1	1916	1
0 C (32 F): Ice days (max	69	145	1928	120
0 C (32 F): Frost days (min	69	238	1929	217
-10 C (14 F): Days with min	69	144	1926	125
-20 C (-4 F): Days with min	69	97	1917	65
-30 C (-22 F): Days with min	69	54	1917	20
-40 C (-40 F): Days with min	47	18	1934	5
20 C (68 F): Tropical nights (min	24	9	1921	2
25 C (77 F): Days with min	2	1	1955	1
10 mm (0.39 in): Days with 10 mm or more rain	67	35	1980	31
25 mm (0.98 in): Days with 25 mm or more rain	65	8	1964	2
50 mm (1.97 in): Days with 50 mm or more rain	13	1	1917	1
10 cm (3.9 in): Days with 10 cm or more snowfall	67	13	1938	4
25 cm (9.8 in): Days with 25 cm or more snowfall	14	3	1964	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1915.

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Data for Iroquois Falls 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).

Iroquois Falls Threshold Days by Year (CA006073810)

Key Facts for Iroquois Falls Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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