Weather on September 15 in Calgary
Historical weather data for September 15 in Calgary, Canada
Based on 54 years of data from CALGARY GLENMORE DAM
About This Date
September 15th in Calgary, Canada typically brings mild fall weather, with average highs around 18°C and lows near 5°C. Over 54 years of records, the warmest September 15th was in 1979 (21°C average), while the coldest was 1992 (3°C) — a 33°F range across recorded history. Precipitation has occurred on 30% of recorded September 15th dates, with snow falling 2% of the time. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for September 15th in Calgary? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 23°C (74°F) | 12°C (53°F) | -- |
| 2023 | 26°C (78°F) | 4°C (39°F) | 0" |
| 2022 | 23°C (74°F) | 6°C (43°F) | 0" |
| 2021 | 15°C (59°F) | 4°C (39°F) | 0.25" |
| 2020 | 12°C (53°F) | 7°C (45°F) | 0" |
| 2019 | 23°C (74°F) | 12°C (53°F) | 0" |
| 2018 | 5°C (41°F) | 2°C (35°F) | 0.06" |
| 2017 | 9°C (48°F) | -- | 0.08" |
| 2016 | 23°C (73°F) | 6°C (42°F) | 0.17" |
| 2015 | 12°C (54°F) | 5°C (41°F) | 0.18" |
| 2014 | 23°C (73°F) | 4°C (39°F) | 0" |
| 2013 | 26°C (78°F) | 10°C (50°F) | 0" |
| 2012 | 20°C (68°F) | 6°C (42°F) | 0" |
| 2011 | 23°C (73°F) | 4°C (40°F) | 0" |
| 2010 | 13°C (56°F) | 6°C (43°F) | 0.32" |
| 2009 | 27°C (80°F) | 7°C (45°F) | 0" |
| 2008 | 27°C (80°F) | 6°C (42°F) | 0" |
| 2007 | 25°C (77°F) | 3°C (37°F) | 0" |
| 2006 | 4°C (39°F) | 1°C (34°F) | 0.42" |
| 2005 | 11°C (51°F) | 6°C (43°F) | 0.08" |
| 2004 | 14°C (58°F) | 2°C (35°F) | 0" |
| 2003 | 9°C (48°F) | 2°C (35°F) | 0.34" |
| 2002 | 28°C (82°F) | 6°C (43°F) | 0" |
| 2001 | 27°C (80°F) | 4°C (40°F) | 0" |
| 2000 | 26°C (78°F) | 9°C (49°F) | 0" |
| 1999 | 24°C (75°F) | 4°C (40°F) | 0" |
| 1998 | 20°C (68°F) | 6°C (43°F) | 0" |
| 1997 | 17°C (63°F) | 6°C (42°F) | 0.38" |
| 1996 | 22°C (71°F) | 3°C (38°F) | 0" |
| 1995 | 13°C (56°F) | 8°C (46°F) | 0" |
| 1994 | 23°C (73°F) | 6°C (43°F) | 0" |
| 1993 | 9°C (48°F) | 3°C (37°F) | 0.18" |
| 1992 | 6°C (42°F) | 0°C (32°F) | 0.06" |
| 1991 | 20°C (68°F) | 1°C (33°F) | 0" |
| 1990 | 24°C (76°F) | 6°C (43°F) | 0" |
| 1989 | 17°C (62°F) | 6°C (42°F) | 0" |
| 1988 | 26°C (78°F) | 11°C (52°F) | 0.36" |
| 1987 | 16°C (61°F) | 11°C (52°F) | 0" |
| 1986 | 8°C (46°F) | 1°C (33°F) | 0.24" |
| 1985 | 16°C (61°F) | 4°C (39°F) | 0" |
| 1984 | 19°C (66°F) | 2°C (35°F) | 0" |
| 1983 | 18°C (64°F) | 3°C (37°F) | 0" |
| 1982 | 14°C (57°F) | -2°C (28°F) | 0.33" |
| 1981 | 23°C (73°F) | 4°C (39°F) | 0" |
| 1980 | 10°C (50°F) | 3°C (37°F) | 0" |
| 1979 | 30°C (86°F) | 13°C (55°F) | 0" |
| 1978 | 14°C (58°F) | 6°C (42°F) | 0" |
| 1977 | 13°C (55°F) | 3°C (37°F) | 0" |
| 1976 | 21°C (69°F) | 7°C (44°F) | 0" |
| 1975 | 28°C (83°F) | 9°C (48°F) | 0" |
| 1974 | 26°C (78°F) | 8°C (47°F) | 0" |
| 1973 | 9°C (48°F) | -1°C (30°F) | 0" |
| 1972 | 22°C (71°F) | 7°C (45°F) | 0.15" |
| 1971 | 11°C (52°F) | -1°C (31°F) | 0" |