Average September Temperature in Calgary by Year

This page contains a list of the average monthly high and low temperatures in Calgary, Alberta for the month of September each year between 1884 and 2023. It is based on NOAA data.

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What Was the Hottest September Ever in Calgary?

1938 was the warmest September in the history of Calgary, Alberta. The average daily high temperature was 24.8 °C, and the average low was 7.1 °C.

What Was the Coldest September Ever in Calgary?

1965 was the coolest September in the history of Calgary, Alberta. The average daily high temperature was 10.4 °C, and the average low was -0.2 °C.

* click column headers to sort

Year	Rank	High (°C)	Low (°C)
2023	13	19.6	7.2
2022	2	22.4	7.8
2021	14	20.3	6.5
2020	18	19.6	6.7
2019	57	16.1	6.3
2018	132	11.9	2.7
2017	29	19.3	5.5
2016	62	17.2	5.1
2015	82	16.9	4.4
2014	42	17.8	5.7
2013	7	21.1	7.3
2011	6	21.8	6.7
2010	112	14.2	4.3
2009	3	23.4	6.6
2008	55	18.2	4.4
2007	91	17.1	3.2
2006	30	19.6	5.1
2005	106	15.9	2.9
2004	98	15.8	3.8
2003	60	17.9	4.4
2002	92	16.4	3.9
2001	19	21.1	5.2
2000	78	17.8	3.7
1999	88	17.7	2.7
1998	25	20.1	5.3
1997	20	20.9	5.3
1996	117	15.0	3.2
1995	36	19.2	4.6
1994	21	21.0	5.1
1993	75	17.3	4.1
1992	103	15.9	3.1
1991	49	19.0	4.0
1990	8	22.3	5.8
1989	47	18.2	4.9
1988	79	17.3	4.1
1987	10	21.1	6.0
1986	133	11.6	2.9
1985	135	12.4	1.2
1984	130	13.5	1.5
1983	94	17.1	2.7
1982	65	17.4	4.5
1981	32	19.7	4.6
1980	70	17.6	4.1
1979	11	21.1	6.0
1978	67	16.8	5.1
1977	118	14.2	3.6
1976	15	20.6	5.9
1975	37	20.3	3.5
1974	93	17.2	2.9
1973	71	17.3	4.4
1972	137	12.2	1.1
1971	109	15.7	2.9
1970	96	17.1	2.6
1969	74	17.6	3.8
1968	81	17.3	4.0
1967	4	24.2	5.7
1966	23	20.8	5.0
1965	139	10.4	-0.2
1964	124	14.4	2.4
1963	5	22.2	7.3
1962	46	19.3	3.8
1961	128	14.9	1.0
1960	51	19.2	3.5
1959	120	14.5	3.0
1958	80	17.6	3.8
1957	28	18.8	6.1
1956	85	17.3	3.6
1955	116	15.4	2.9
1954	102	15.3	3.8
1953	68	17.8	4.1
1952	41	18.9	4.7
1951	119	14.5	3.2
1950	63	18.9	3.3
1949	31	19.9	4.7
1948	33	19.3	4.7
1947	90	15.9	4.4
1946	56	17.6	4.9
1945	113	14.7	3.8
1944	39	18.5	5.2
1943	35	20.1	3.8
1942	61	17.5	4.8
1941	127	13.3	2.5
1940	17	20.0	6.4
1939	66	17.3	4.7
1938	1	24.8	7.1
1937	44	18.1	5.2
1936	97	16.1	3.5
1935	69	18.6	3.3
1934	129	13.5	1.7
1933	104	16.0	2.9
1932	58	18.2	4.2
1931	84	16.8	4.1
1930	76	17.6	3.9
1929	108	16.4	2.3
1928	45	21.1	2.0
1927	86	16.8	3.8
1926	138	11.8	0.3
1925	110	14.8	3.7
1924	27	21.0	3.9
1923	26	21.9	3.2
1922	16	22.2	4.3
1921	122	16.9	0.4
1920	48	20.7	2.3
1919	52	19.2	3.5
1918	9	22.2	5.3
1917	50	18.3	4.6
1916	54	18.8	3.8
1915	111	16.5	2.0
1914	38	20.0	3.8
1913	24	21.5	4.1
1912	126	14.2	2.1
1911	123	14.7	2.4
1910	95	16.3	3.4
1909	22	21.1	4.7
1908	40	19.2	4.4
1907	107	15.6	3.1
1906	73	18.4	3.1
1905	72	19.1	2.5
1904	83	18.2	2.8
1903	125	14.8	1.9
1902	114	16.7	1.8
1901	131	13.2	1.5
1900	121	15.2	2.3
1899	34	19.3	4.7
1898	64	19.1	2.9
1897	53	19.1	3.5
1896	101	16.4	2.9
1895	134	13.2	1.2
1894	115	16.3	2.2
1893	99	17.0	2.6
1892	43	21.4	2.1
1891	59	19.7	2.7
1890	77	17.9	3.5
1889	105	16.8	2.1
1888	12	22.5	4.5
1887	87	17.0	3.5
1886	100	17.1	2.3
1885	89	18.6	1.8
1884	136	13.3	-0.1

Weather Station Details

Years	Station	Coordinates
2012–2024	Calgary International Airport	location
1881–2012	Calgary International Airport	location