Weather on September 25 in Calgary
Historical weather data for September 25 in Calgary, Canada
Based on 54 years of data from CALGARY GLENMORE DAM
About This Date
September 25th 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 54 years of records, the warmest September 25th was in 1974 (19°C average), while the coldest was 1972 (-3°C) — a 41°F range across recorded history. Precipitation has occurred on 24% of recorded September 25th dates, with snow falling 4% of the time (heaviest snowfall: 1.7"). The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
Planning for September 25th in Calgary? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 24°C (75°F) | 6°C (42°F) | -- |
| 2023 | 20°C (68°F) | 4°C (40°F) | 0" |
| 2022 | 23°C (74°F) | 2°C (35°F) | 0" |
| 2021 | 21°C (69°F) | 7°C (45°F) | 0" |
| 2020 | 16°C (61°F) | 6°C (43°F) | 0" |
| 2019 | 17°C (62°F) | 3°C (38°F) | 0" |
| 2018 | 17°C (63°F) | 4°C (39°F) | 0" |
| 2017 | 19°C (67°F) | -- | 0" |
| 2016 | 19°C (67°F) | -1°C (31°F) | 0.06" |
| 2015 | 22°C (72°F) | 6°C (42°F) | 0" |
| 2014 | 26°C (78°F) | 10°C (50°F) | 0" |
| 2013 | 11°C (52°F) | 2°C (35°F) | 0" |
| 2012 | 18°C (65°F) | 7°C (44°F) | 0.06" |
| 2011 | 29°C (84°F) | 8°C (47°F) | 0" |
| 2010 | 26°C (78°F) | 6°C (43°F) | 0" |
| 2009 | 24°C (75°F) | 3°C (37°F) | 0" |
| 2008 | 16°C (61°F) | 3°C (38°F) | 0.26" |
| 2007 | 17°C (62°F) | 3°C (37°F) | 0.04" |
| 2006 | 23°C (74°F) | 5°C (41°F) | 0" |
| 2005 | 21°C (69°F) | 0°C (32°F) | 0" |
| 2004 | 22°C (71°F) | 8°C (47°F) | 0" |
| 2003 | 21°C (70°F) | 4°C (39°F) | 0" |
| 2002 | 14°C (57°F) | 2°C (35°F) | 0" |
| 2001 | 31°C (87°F) | 7°C (44°F) | 0" |
| 2000 | 22°C (72°F) | 2°C (36°F) | 0" |
| 1999 | 9°C (49°F) | 3°C (37°F) | 0" |
| 1998 | 9°C (49°F) | 3°C (38°F) | 0.3" |
| 1997 | 27°C (81°F) | 3°C (37°F) | 0" |
| 1996 | 12°C (53°F) | -2°C (29°F) | 0" |
| 1995 | 22°C (72°F) | 2°C (36°F) | 0" |
| 1994 | 29°C (85°F) | 8°C (46°F) | 0" |
| 1993 | 12°C (54°F) | 1°C (34°F) | 0.14" |
| 1992 | 9°C (49°F) | 3°C (37°F) | 0.48" |
| 1991 | 24°C (75°F) | 7°C (44°F) | 0" |
| 1990 | 28°C (83°F) | 8°C (47°F) | 0" |
| 1989 | 22°C (72°F) | 3°C (37°F) | 0" |
| 1988 | 10°C (50°F) | 3°C (38°F) | 0" |
| 1987 | 24°C (75°F) | 5°C (41°F) | 0" |
| 1986 | 7°C (45°F) | 1°C (33°F) | 2.38" |
| 1985 | 18°C (64°F) | 0°C (32°F) | 0" |
| 1984 | 3°C (37°F) | -3°C (27°F) | 0" |
| 1983 | 27°C (80°F) | 11°C (52°F) | 0" |
| 1982 | 22°C (71°F) | 10°C (50°F) | 0.94" |
| 1981 | 8°C (46°F) | 1°C (33°F) | 0.46" |
| 1980 | 18°C (65°F) | -2°C (28°F) | 0" |
| 1979 | 25°C (77°F) | 3°C (37°F) | 0" |
| 1978 | 17°C (62°F) | 3°C (37°F) | 0" |
| 1977 | 11°C (51°F) | 4°C (39°F) | 0.91" |
| 1976 | 20°C (68°F) | 9°C (49°F) | 0" |
| 1975 | 16°C (60°F) | 11°C (51°F) | 0" |
| 1974 | 28°C (83°F) | 11°C (51°F) | -- |
| 1973 | 9°C (48°F) | 3°C (37°F) | 0.18" |
| 1972 | 1°C (33°F) | -7°C (20°F) | 0" |
| 1971 | 13°C (55°F) | 1°C (34°F) | 0.81" |