Weather on December 20 in Ottawa
Historical weather data for December 20 in Ottawa, Canada
Based on 55 years of data from OTTAWA CDA
About This Date
December 20th in Ottawa, Canada typically brings very cold winter weather, with average highs around -4°C and lows near -12°C. Over 55 years of records, the warmest December 20th was in 2002 (2°C average), while the coldest was 2004 (-26°C) — a 50°F range across recorded history. Precipitation has occurred on 51% of recorded December 20th dates, with snow falling 36% of the time (heaviest snowfall: 14.8"). 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 December 20th in Ottawa? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella. Check road conditions if traveling, as snow is possible.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | -1°C (31°F) | -10°C (14°F) | -- |
| 2024 | 0°C (32°F) | -11°C (12°F) | 0" |
| 2023 | 0°C (32°F) | -9°C (16°F) | 0" |
| 2022 | -4°C (25°F) | -8°C (17°F) | 0.01" |
| 2021 | 2°C (36°F) | -18°C (0°F) | 0" |
| 2020 | 2°C (35°F) | -4°C (25°F) | 0.27" |
| 2019 | -11°C (13°F) | -18°C (0°F) | 0" |
| 2018 | 3°C (37°F) | -9°C (16°F) | 2" |
| 2017 | 1°C (33°F) | -13°C (8°F) | 0.03" |
| 2016 | 0°C (32°F) | -21°C (-5°F) | 0" |
| 2015 | 0°C (32°F) | -7°C (20°F) | 0" |
| 2014 | -3°C (26°F) | -14°C (6°F) | 0" |
| 2013 | -3°C (26°F) | -5°C (23°F) | 0.9" |
| 2012 | -1°C (31°F) | -8°C (18°F) | 0.32" |
| 2011 | -3°C (26°F) | -9°C (15°F) | 0" |
| 2010 | -2°C (29°F) | -7°C (19°F) | 0" |
| 2009 | -6°C (21°F) | -13°C (8°F) | 0" |
| 2008 | -13°C (8°F) | -17°C (1°F) | 0.06" |
| 2007 | -4°C (24°F) | -8°C (17°F) | 0" |
| 2006 | 7°C (44°F) | -6°C (22°F) | 0" |
| 2005 | -4°C (25°F) | -6°C (22°F) | 0.1" |
| 2004 | -21°C (-6°F) | -30°C (-22°F) | 0" |
| 2003 | -3°C (26°F) | -11°C (12°F) | 0.6" |
| 2002 | 6°C (42°F) | -2°C (29°F) | 0.63" |
| 2001 | 1°C (33°F) | -1°C (30°F) | 0.24" |
| 2000 | -9°C (15°F) | -11°C (13°F) | 0" |
| 1999 | 6°C (43°F) | -8°C (17°F) | 0.44" |
| 1998 | -6°C (22°F) | -11°C (12°F) | 0.52" |
| 1997 | -4°C (25°F) | -8°C (17°F) | 0" |
| 1996 | -5°C (23°F) | -7°C (19°F) | 0.04" |
| 1995 | -11°C (12°F) | -16°C (3°F) | 0.42" |
| 1994 | 3°C (37°F) | -12°C (10°F) | 0" |
| 1993 | 4°C (39°F) | -4°C (24°F) | 0.32" |
| 1992 | 3°C (37°F) | -2°C (28°F) | 0.02" |
| 1991 | 1°C (34°F) | -17°C (1°F) | 0.58" |
| 1990 | -9°C (16°F) | -17°C (1°F) | 0" |
| 1989 | -9°C (16°F) | -15°C (5°F) | 0.35" |
| 1988 | 8°C (47°F) | -8°C (17°F) | 0" |
| 1987 | 4°C (40°F) | -7°C (19°F) | 0.92" |
| 1986 | 2°C (35°F) | -4°C (24°F) | 0" |
| 1985 | -14°C (7°F) | -22°C (-8°F) | 0.17" |
| 1984 | 1°C (33°F) | -7°C (20°F) | 0" |
| 1983 | -20°C (-4°F) | -27°C (-17°F) | 0" |
| 1982 | -3°C (27°F) | -7°C (19°F) | 0.14" |
| 1981 | -10°C (14°F) | -12°C (10°F) | 0" |
| 1980 | -17°C (1°F) | -25°C (-13°F) | 0" |
| 1979 | -11°C (12°F) | -19°C (-3°F) | 0" |
| 1978 | -7°C (19°F) | -17°C (1°F) | 0.62" |
| 1977 | -2°C (28°F) | -5°C (23°F) | 0.76" |
| 1976 | -4°C (25°F) | -9°C (16°F) | 0.58" |
| 1975 | -17°C (1°F) | -26°C (-14°F) | 0.03" |
| 1974 | -2°C (29°F) | -3°C (26°F) | 0" |
| 1973 | -7°C (20°F) | -16°C (3°F) | 2.39" |
| 1972 | -9°C (15°F) | -15°C (5°F) | 0" |
| 1971 | -3°C (26°F) | -13°C (9°F) | 0.23" |