McGill Threshold Days by Year (USC00264950)

16 fixed thresholds counted per year at McGill (USC00264950): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for McGill Thresholds

McGill: days with a maximum temperature at or above 30 C (86 F) in 112 years, most in 2024 with 86.
McGill: days with a maximum temperature at or above 90 F (32.2 C) in 112 years, most in 1919 with 55.
McGill: days with a maximum temperature at or below 0 C (32 F) in 112 years, most in 1949 with 51.
McGill: nights with a minimum temperature at or below 0 C (32 F) in 107 years, most in 1893 with 223.
16 fixed thresholds have at least one qualifying day at McGill.

Days at or above 30 C (86 F)

112 years with a qualifying day

Days per year at McGill with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 86 in 2024.

Days at or above 30 C (86 F) per year at McGill
Year	Days	Decade average
1892	52	44.3
1893	28	44.3
1898	53	44.3
1913	28	55.1
1914	51	55.1
1915	60	55.1
1916	54	55.1
1917	70	55.1
1918	49	55.1
1919	74	55.1
1920	48	60.1
1921	63	60.1
1922	62	60.1
1923	46	60.1
1924	71	60.1
1925	67	60.1
1926	63	60.1
1927	76	60.1
1928	52	60.1
1929	53	60.1
1930	38	56.3
1931	63	56.3
1932	67	56.3
1933	71	56.3
1934	54	56.3
1935	77	56.3
1936	51	56.3
1937	58	56.3
1938	46	56.3
1939	38	56.3
1940	57	28.5
1941	13	28.5
1942	36	28.5
1943	20	28.5
1944	30	28.5
1945	19	28.5
1946	21	28.5
1947	29	28.5
1948	36	28.5
1949	24	28.5
1950	34	35.2
1951	34	35.2
1952	30	35.2
1953	35	35.2
1954	33	35.2
1955	33	35.2
1956	27	35.2
1957	35	35.2
1958	42	35.2
1959	49	35.2
1960	51	41.9
1961	51	41.9
1962	32	41.9
1963	39	41.9
1964	50	41.9
1965	13	41.9
1966	43	41.9
1967	55	41.9
1968	35	41.9
1969	50	41.9
1970	29	35.5
1973	37	35.5
1974	47	35.5
1975	24	35.5
1976	32	35.5
1977	44	35.5
1978	34	35.5
1979	37	35.5
1980	33	37.2
1981	60	37.2
1982	22	37.2
1983	15	37.2
1984	30	37.2
1985	49	37.2
1986	45	37.2
1987	29	37.2
1988	53	37.2
1989	36	37.2
1990	47	37.1
1991	32	37.1
1992	26	37.1
1993	19	37.1
1994	54	37.1
1995	31	37.1
1996	55	37.1
1997	28	37.1
1998	39	37.1
1999	40	37.1
2000	56	60.9
2001	63	60.9
2002	68	60.9
2003	67	60.9
2004	44	60.9
2005	46	60.9
2006	60	60.9
2007	69	60.9
2008	79	60.9
2009	57	60.9
2010	73	63.3
2011	59	63.3
2012	76	63.3
2013	57	63.3
2014	41	63.3
2015	55	63.3
2016	64	63.3
2017	69	63.3
2018	73	63.3
2019	66	63.3
2023	48	72.3
2024	86	72.3
2025	78	72.3
2026	77	72.3

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

First to last qualifying date each year at McGill
Year	First date	Last date
1892	1892-06-18	1892-08-22
1893	1893-06-05	1893-08-04
1898	1898-06-16	1898-08-21
1913	1913-06-21	1913-09-18
1914	1914-06-17	1914-09-05
1915	1915-06-21	1915-09-22
1916	1916-06-08	1916-09-14
1917	1917-06-14	1917-09-19
1918	1918-06-07	1918-09-20
1919	1919-05-19	1919-08-31
1920	1920-06-20	1920-09-02
1921	1921-06-08	1921-09-27
1922	1922-06-04	1922-09-20
1923	1923-06-29	1923-09-09
1924	1924-06-02	1924-09-17
1925	1925-04-11	1925-09-02
1926	1926-05-31	1926-09-11
1927	1927-05-14	1927-10-19
1928	1928-05-28	1928-09-25
1929	1929-06-21	1929-09-18
1930	1930-06-10	1930-08-30
1931	1931-06-15	1931-09-07
1932	1932-06-13	1932-09-16
1933	1933-06-10	1933-09-28
1934	1934-07-10	1934-09-19
1935	1935-06-07	1935-09-20
1936	1936-05-14	1936-09-01
1937	1937-05-27	1937-09-17
1938	1938-06-03	1938-09-04
1939	1939-06-12	1939-08-18
1940	1940-06-12	1940-08-30
1941	1941-07-05	1941-08-04
1942	1942-07-01	1942-08-22
1943	1943-07-08	1943-08-15
1944	1944-06-29	1944-09-08
1945	1945-06-21	1945-08-23
1946	1946-07-01	1946-08-19
1947	1947-06-19	1947-09-06
1948	1948-06-29	1948-09-15
1949	1949-06-16	1949-09-02
1950	1950-06-28	1950-09-05
1951	1951-06-17	1951-09-18
1952	1952-07-04	1952-09-04
1953	1953-06-23	1953-09-14
1954	1954-05-20	1954-09-01
1955	1955-06-08	1955-09-12
1956	1956-06-12	1956-09-18
1957	1957-06-25	1957-09-08
1958	1958-06-22	1958-09-04
1959	1959-06-04	1959-09-10
1960	1960-06-04	1960-09-16
1961	1961-06-11	1961-09-09
1962	1962-06-20	1962-09-18
1963	1963-07-01	1963-09-29
1964	1964-06-25	1964-10-05
1965	1965-07-04	1965-08-10
1966	1966-06-18	1966-08-25
1967	1967-05-23	1967-09-07
1968	1968-06-03	1968-09-10
1969	1969-05-27	1969-09-19
1970	1970-06-21	1970-08-25
1973	1973-06-07	1973-08-20
1974	1974-06-11	1974-09-09
1975	1975-07-07	1975-08-12
1976	1976-06-20	1976-09-04
1977	1977-06-01	1977-09-08
1978	1978-07-09	1978-09-29
1979	1979-06-13	1979-08-28
1980	1980-06-29	1980-08-15
1981	1981-06-08	1981-09-02
1982	1982-06-27	1982-09-04
1983	1983-06-18	1983-08-07
1984	1984-05-26	1984-08-30
1985	1985-06-07	1985-09-02
1986	1986-05-27	1986-09-07
1987	1987-06-05	1987-09-02
1988	1988-06-16	1988-09-09
1989	1989-06-15	1989-08-17
1990	1990-06-22	1990-09-15
1991	1991-07-03	1991-08-31
1992	1992-06-23	1992-08-22
1993	1993-06-27	1993-09-12
1994	1994-06-12	1994-08-27
1995	1995-07-06	1995-09-04
1996	1996-05-13	1996-09-03
1997	1997-06-01	1997-08-28
1998	1998-06-29	1998-09-04
1999	1999-06-15	1999-09-09
2000	2000-05-23	2000-09-17
2001	2001-05-24	2001-09-04
2002	2002-05-30	2002-09-05
2003	2003-05-23	2003-09-29
2004	2004-06-03	2004-09-12
2005	2005-06-22	2005-08-30
2006	2006-06-04	2006-09-04
2007	2007-06-04	2007-09-09
2008	2008-05-18	2008-09-09
2009	2009-05-19	2009-09-13
2010	2010-06-06	2010-10-03
2011	2011-06-23	2011-10-01
2012	2012-05-22	2012-09-20
2013	2013-05-14	2013-08-31
2014	2014-05-28	2014-09-05
2015	2015-06-14	2015-09-26
2016	2016-06-05	2016-09-01
2017	2017-06-05	2017-09-06
2018	2018-06-04	2018-09-11
2019	2019-07-02	2019-09-10
2023	2023-07-02	2023-09-01
2024	2024-06-06	2024-09-30
2025	2025-05-31	2025-09-03
2026	2026-05-12	2026-10-03

Every Fixed Threshold

Fixed thresholds at McGill
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	112	86	2024	77
35 C (95 F): Days	73	17	1927	20
40 C (104 F): Days	1	1	1898	1
90 F (32.2 C): Days	112	55	1919	53
100 F (37.8 C): Days	14	3	1925	3
0 C (32 F): Ice days (max	112	51	1949	5
0 C (32 F): Frost days (min	107	223	1893	106
-10 C (14 F): Days with min	107	81	2023	16
-20 C (-4 F): Days with min	76	21	1949	7
-30 C (-22 F): Days with min	3	3	1937	3
20 C (68 F): Tropical nights (min	21	4	1929	2
10 mm (0.39 in): Days with 10 mm or more rain	103	13	1918	6
25 mm (0.98 in): Days with 25 mm or more rain	38	5	1916	1
50 mm (1.97 in): Days with 50 mm or more rain	4	1	1956	1
10 cm (3.9 in): Days with 10 cm or more snowfall	63	9	2023	2
25 cm (9.8 in): Days with 25 cm or more snowfall	12	2	2003	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 McGill 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).

McGill Threshold Days by Year (USC00264950)

Key Facts for McGill Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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