Weather on November 18 in Ottawa
Historical weather data for November 18 in Ottawa, Canada
Based on 54 years of data from OTTAWA CDA
About This Date
November 18th in Ottawa, Canada typically brings chilly fall weather, with average highs around 4°C and lows near -3°C. Over 54 years of records, the warmest November 18th was in 1987 (9°C average), while the coldest was 2018 (-9°C) — a 33°F range across recorded history. Precipitation has occurred on 31% of recorded November 18th dates, with snow falling 9% of the time (heaviest snowfall: 3.1"). The last decade has been 4.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.5°F cooler on this date compared to 20-30 years ago.
Planning for November 18th in Ottawa? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2025 | -1°C (31°F) | -2°C (28°F) | -- |
| 2023 | 4°C (40°F) | -2°C (28°F) | 0 mm |
| 2022 | -3°C (27°F) | -9°C (15°F) | 1 mm |
| 2021 | 8°C (46°F) | 1°C (33°F) | 8 mm |
| 2020 | -2°C (28°F) | -8°C (17°F) | 0 mm |
| 2019 | 1°C (33°F) | -7°C (20°F) | 0 mm |
| 2018 | -2°C (28°F) | -16°C (3°F) | 0 mm |
| 2017 | 0°C (32°F) | -6°C (22°F) | 9 mm |
| 2016 | 10°C (50°F) | 1°C (34°F) | 0 mm |
| 2015 | 8°C (47°F) | -2°C (28°F) | 0 mm |
| 2014 | 0°C (32°F) | -7°C (19°F) | 0 mm |
| 2013 | 10°C (50°F) | 6°C (42°F) | 1 mm |
| 2012 | 6°C (42°F) | -4°C (25°F) | 0 mm |
| 2011 | 5°C (41°F) | -3°C (27°F) | 0 mm |
| 2010 | 5°C (41°F) | 0°C (32°F) | 0 mm |
| 2009 | 9°C (49°F) | -6°C (22°F) | 0 mm |
| 2008 | -1°C (30°F) | -5°C (23°F) | 0 mm |
| 2007 | 3°C (37°F) | -6°C (21°F) | 0 mm |
| 2006 | 4°C (39°F) | 1°C (33°F) | 0 mm |
| 2005 | -4°C (25°F) | -9°C (16°F) | 0 mm |
| 2004 | 8°C (46°F) | 3°C (37°F) | 1 mm |
| 2003 | 12°C (54°F) | 1°C (34°F) | 5 mm |
| 2002 | -1°C (31°F) | -3°C (26°F) | 1 mm |
| 2001 | 12°C (54°F) | -2°C (29°F) | 0 mm |
| 2000 | 3°C (37°F) | -1°C (30°F) | 0 mm |
| 1999 | 3°C (38°F) | -3°C (27°F) | 0 mm |
| 1998 | 2°C (36°F) | -7°C (20°F) | 0 mm |
| 1997 | 0°C (32°F) | -6°C (21°F) | 0 mm |
| 1996 | 5°C (41°F) | -1°C (31°F) | 0 mm |
| 1995 | -1°C (30°F) | -13°C (8°F) | 2 mm |
| 1994 | 14°C (57°F) | 0°C (32°F) | 1 mm |
| 1993 | 6°C (43°F) | -1°C (30°F) | 0 mm |
| 1992 | -1°C (31°F) | -3°C (26°F) | 0 mm |
| 1991 | 7°C (44°F) | -8°C (18°F) | 0 mm |
| 1990 | 2°C (35°F) | -7°C (19°F) | 0 mm |
| 1989 | 0°C (32°F) | -4°C (25°F) | 2 mm |
| 1988 | 5°C (41°F) | 1°C (34°F) | 0 mm |
| 1987 | 12°C (54°F) | 7°C (44°F) | 4 mm |
| 1986 | -3°C (27°F) | -5°C (23°F) | 0 mm |
| 1985 | 7°C (45°F) | 0°C (32°F) | 2 mm |
| 1984 | -1°C (31°F) | -6°C (21°F) | 1 mm |
| 1983 | -2°C (28°F) | -7°C (19°F) | 0 mm |
| 1982 | 7°C (44°F) | -2°C (28°F) | 0 mm |
| 1981 | 6°C (43°F) | 3°C (37°F) | 3 mm |
| 1980 | 1°C (33°F) | -5°C (23°F) | 0 mm |
| 1979 | 4°C (39°F) | 1°C (34°F) | 0 mm |
| 1978 | 8°C (47°F) | 2°C (35°F) | 0 mm |
| 1977 | 6°C (42°F) | 1°C (33°F) | 1 mm |
| 1976 | 6°C (42°F) | 2°C (36°F) | 2 mm |
| 1975 | 12°C (54°F) | 1°C (33°F) | 0 mm |
| 1974 | 11°C (51°F) | 2°C (35°F) | 0 mm |
| 1973 | 1°C (34°F) | -4°C (25°F) | 0 mm |
| 1972 | 3°C (37°F) | -7°C (19°F) | 0 mm |
| 1971 | 13°C (55°F) | 1°C (34°F) | 0 mm |