Weather on September 23 in Calgary
Historical weather data for September 23 in Calgary, Canada
Based on 55 years of data from CALGARY GLENMORE DAM
About This Date
September 23rd in Calgary, Canada typically brings mild fall weather, with average highs around 18°C and lows near 4°C — a 26°F daily swing. Over 55 years of records, the warmest September 23rd was in 2011 (23°C average), while the coldest was 1972 (-2°C) — a 45°F range across recorded history. Precipitation has occurred on 24% of recorded September 23rd dates, with snow falling 4% of the time (heaviest snowfall: 5"). The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
Planning for September 23rd in Calgary? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 19°C (67°F) | 4°C (40°F) | -- |
| 2025 | 27°C (81°F) | 10°C (50°F) | -- |
| 2023 | 22°C (71°F) | 8°C (46°F) | 0 mm |
| 2022 | 20°C (68°F) | 4°C (39°F) | 0 mm |
| 2021 | 15°C (59°F) | 3°C (37°F) | 0 mm |
| 2020 | 22°C (72°F) | 2°C (35°F) | 0 mm |
| 2019 | 16°C (61°F) | 7°C (45°F) | 0 mm |
| 2018 | 7°C (45°F) | -1°C (31°F) | 1 mm |
| 2017 | 11°C (52°F) | 2°C (35°F) | 0 mm |
| 2016 | 17°C (62°F) | 7°C (44°F) | 0 mm |
| 2015 | 20°C (68°F) | 2°C (35°F) | 0 mm |
| 2014 | 21°C (69°F) | 13°C (55°F) | 1 mm |
| 2013 | 18°C (64°F) | 6°C (42°F) | 0 mm |
| 2012 | 24°C (76°F) | 6°C (43°F) | 0 mm |
| 2011 | 28°C (83°F) | 17°C (62°F) | 0 mm |
| 2010 | 17°C (63°F) | -2°C (29°F) | 0 mm |
| 2009 | 33°C (92°F) | 11°C (52°F) | 0 mm |
| 2008 | 12°C (53°F) | 4°C (39°F) | 10 mm |
| 2007 | 8°C (46°F) | 0°C (32°F) | 4 mm |
| 2006 | 19°C (66°F) | -1°C (31°F) | 0 mm |
| 2005 | 13°C (55°F) | -3°C (27°F) | 0 mm |
| 2004 | 19°C (67°F) | 3°C (37°F) | 0 mm |
| 2003 | 12°C (54°F) | 2°C (36°F) | 3 mm |
| 2002 | 16°C (60°F) | -1°C (31°F) | 6 mm |
| 2001 | 28°C (82°F) | 6°C (43°F) | 0 mm |
| 2000 | 18°C (64°F) | -6°C (21°F) | 0 mm |
| 1999 | 29°C (85°F) | -- | -- |
| 1998 | 22°C (71°F) | 5°C (41°F) | 0 mm |
| 1997 | 29°C (84°F) | 8°C (47°F) | 0 mm |
| 1996 | 10°C (50°F) | -3°C (26°F) | 0 mm |
| 1995 | 17°C (62°F) | -2°C (29°F) | 0 mm |
| 1994 | 28°C (83°F) | 8°C (46°F) | 0 mm |
| 1993 | 18°C (65°F) | 2°C (36°F) | 0 mm |
| 1992 | 25°C (77°F) | 9°C (49°F) | 0 mm |
| 1991 | 17°C (63°F) | 5°C (41°F) | 0 mm |
| 1990 | 29°C (85°F) | 7°C (44°F) | 0 mm |
| 1989 | 24°C (76°F) | 7°C (45°F) | 0 mm |
| 1988 | 7°C (45°F) | 4°C (39°F) | 14 mm |
| 1987 | 23°C (73°F) | 9°C (49°F) | 0 mm |
| 1986 | 13°C (55°F) | 7°C (45°F) | 0 mm |
| 1985 | 10°C (50°F) | -6°C (21°F) | 0 mm |
| 1984 | 1°C (33°F) | -2°C (29°F) | 1 mm |
| 1983 | 23°C (73°F) | 3°C (38°F) | 0 mm |
| 1982 | 22°C (72°F) | 6°C (43°F) | 0 mm |
| 1981 | 12°C (53°F) | 3°C (37°F) | 0 mm |
| 1980 | 14°C (58°F) | 3°C (37°F) | 3 mm |
| 1979 | 18°C (64°F) | 9°C (48°F) | 0 mm |
| 1978 | 16°C (61°F) | 4°C (39°F) | 0 mm |
| 1977 | 16°C (61°F) | 2°C (35°F) | 0 mm |
| 1976 | 24°C (75°F) | 8°C (46°F) | 0 mm |
| 1975 | 26°C (79°F) | 2°C (36°F) | 0 mm |
| 1974 | 21°C (70°F) | 7°C (44°F) | 0 mm |
| 1973 | 18°C (64°F) | 7°C (45°F) | 0 mm |
| 1972 | -1°C (31°F) | -3°C (26°F) | 13 mm |
| 1971 | 20°C (68°F) | 1°C (34°F) | 0 mm |