Weather on September 22 in Ottawa
Historical weather data for September 22 in Ottawa, Canada
Based on 54 years of data from OTTAWA CDA RCS
About This Date
September 22nd in Ottawa, Canada typically brings mild fall weather, with average highs around 19°C and lows near 9°C. Over 54 years of records, the warmest September 22nd was in 2011 (22°C average), while the coldest was 1973 (7°C) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 52% of September 22nd dates historically, with the wettest September 22nd recording 3.98" of rain. The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
Planning for September 22nd in Ottawa? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2025 | 21°C (69°F) | 13°C (55°F) | -- |
| 2023 | 24°C (75°F) | 6°C (42°F) | 0 mm |
| 2022 | 16°C (61°F) | 12°C (54°F) | 0 mm |
| 2021 | 21°C (70°F) | 17°C (63°F) | 101 mm |
| 2020 | 19°C (66°F) | 2°C (36°F) | 0 mm |
| 2019 | 28°C (82°F) | 14°C (57°F) | 0 mm |
| 2018 | 16°C (60°F) | 6°C (43°F) | 1 mm |
| 2017 | 28°C (82°F) | 12°C (54°F) | 0 mm |
| 2016 | 23°C (74°F) | 15°C (59°F) | 23 mm |
| 2015 | 22°C (72°F) | 8°C (46°F) | 0 mm |
| 2014 | 12°C (53°F) | 7°C (44°F) | 0 mm |
| 2013 | 12°C (54°F) | 6°C (42°F) | 1 mm |
| 2012 | 18°C (65°F) | 13°C (55°F) | 3 mm |
| 2011 | 27°C (80°F) | 18°C (64°F) | 0 mm |
| 2010 | 22°C (71°F) | 17°C (62°F) | 0 mm |
| 2009 | 24°C (75°F) | 17°C (62°F) | 2 mm |
| 2008 | 16°C (61°F) | 3°C (37°F) | 0 mm |
| 2007 | 27°C (81°F) | 13°C (56°F) | 0 mm |
| 2006 | 18°C (64°F) | 6°C (42°F) | 13 mm |
| 2005 | 24°C (75°F) | 16°C (60°F) | 11 mm |
| 2004 | 26°C (78°F) | 12°C (53°F) | 0 mm |
| 2003 | 20°C (68°F) | 12°C (53°F) | 22 mm |
| 2002 | 26°C (79°F) | 12°C (54°F) | 2 mm |
| 2001 | 23°C (73°F) | 16°C (60°F) | 9 mm |
| 2000 | 14°C (58°F) | 6°C (42°F) | 1 mm |
| 1999 | 11°C (52°F) | 7°C (44°F) | 0 mm |
| 1998 | 14°C (57°F) | 11°C (51°F) | 2 mm |
| 1997 | 19°C (67°F) | 3°C (38°F) | 6 mm |
| 1996 | 15°C (59°F) | 11°C (52°F) | 0 mm |
| 1995 | 18°C (65°F) | 10°C (50°F) | 20 mm |
| 1994 | 25°C (77°F) | 11°C (52°F) | 0 mm |
| 1993 | 20°C (68°F) | 2°C (36°F) | 18 mm |
| 1992 | 22°C (71°F) | 16°C (61°F) | 9 mm |
| 1991 | 18°C (65°F) | 2°C (35°F) | 0 mm |
| 1990 | 17°C (62°F) | 10°C (50°F) | 18 mm |
| 1989 | 27°C (81°F) | 12°C (54°F) | 54 mm |
| 1988 | 17°C (62°F) | 7°C (45°F) | 19 mm |
| 1987 | 15°C (59°F) | 11°C (52°F) | 0 mm |
| 1986 | 16°C (60°F) | 3°C (38°F) | 37 mm |
| 1985 | 23°C (73°F) | 12°C (53°F) | 0 mm |
| 1984 | 21°C (69°F) | 4°C (40°F) | 0 mm |
| 1983 | 17°C (63°F) | 7°C (44°F) | 5 mm |
| 1982 | 20°C (68°F) | 9°C (48°F) | 18 mm |
| 1981 | 10°C (50°F) | 8°C (46°F) | 25 mm |
| 1980 | 19°C (67°F) | 12°C (53°F) | 61 mm |
| 1979 | 14°C (57°F) | 7°C (44°F) | 0 mm |
| 1978 | 16°C (60°F) | 9°C (48°F) | 0 mm |
| 1977 | 12°C (53°F) | 8°C (46°F) | 0 mm |
| 1976 | 12°C (54°F) | 4°C (40°F) | 5 mm |
| 1975 | 18°C (64°F) | 10°C (50°F) | 0 mm |
| 1974 | 9°C (49°F) | 6°C (43°F) | 1 mm |
| 1973 | 12°C (53°F) | 3°C (38°F) | 36 mm |
| 1972 | 15°C (59°F) | 9°C (48°F) | 0 mm |
| 1971 | 21°C (70°F) | 6°C (42°F) | 0 mm |