Weather on December 18 in Calgary
Historical weather data for December 18 in Calgary, Canada
Based on 54 years of data from CALGARY GLENMORE DAM
About This Date
December 18th in Calgary, Canada typically brings very cold winter weather, with average highs around -1°C and lows near -12°C. Over 54 years of records, the warmest December 18th was in 1979 (5°C average), while the coldest was 1983 (-24°C) — a 52°F range across recorded history. Precipitation has occurred on 28% of recorded December 18th dates, with snow falling 28% of the time (heaviest snowfall: 4.2"). The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
Planning for December 18th in Calgary? Bundle up with warm layers and protect extremities from the cold. Check road conditions if traveling, as snow is possible.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 2°C (35°F) | -17°C (1°F) | -- |
| 2023 | 7°C (45°F) | -2°C (29°F) | 0" |
| 2022 | -21°C (-5°F) | -25°C (-13°F) | 0.11" |
| 2021 | -1°C (31°F) | -20°C (-4°F) | 0" |
| 2020 | 6°C (42°F) | -11°C (12°F) | 0" |
| 2019 | 8°C (46°F) | -3°C (26°F) | 0" |
| 2018 | 6°C (43°F) | -4°C (24°F) | 0" |
| 2017 | 3°C (37°F) | -10°C (14°F) | 0.04" |
| 2016 | 1°C (33°F) | -9°C (16°F) | 0" |
| 2015 | -8°C (18°F) | -17°C (1°F) | 0.17" |
| 2014 | 3°C (38°F) | -7°C (19°F) | 0" |
| 2013 | 3°C (37°F) | -17°C (2°F) | 0.54" |
| 2012 | -6°C (22°F) | -17°C (2°F) | 0" |
| 2011 | 6°C (42°F) | -7°C (19°F) | 0.12" |
| 2010 | -12°C (11°F) | -13°C (8°F) | 0.02" |
| 2009 | 8°C (46°F) | -11°C (12°F) | 0" |
| 2008 | -19°C (-3°F) | -25°C (-13°F) | 0.14" |
| 2007 | 1°C (33°F) | -12°C (11°F) | 0" |
| 2006 | 8°C (46°F) | -9°C (16°F) | 0" |
| 2005 | -4°C (24°F) | -18°C (-1°F) | 0" |
| 2004 | 11°C (51°F) | -6°C (21°F) | 0" |
| 2003 | 3°C (38°F) | -4°C (24°F) | -- |
| 2002 | 3°C (38°F) | -9°C (16°F) | 0" |
| 2001 | -1°C (31°F) | -10°C (14°F) | -- |
| 2000 | 4°C (40°F) | -13°C (9°F) | 0" |
| 1999 | 4°C (40°F) | -- | -- |
| 1998 | -12°C (11°F) | -24°C (-11°F) | 0" |
| 1997 | -1°C (30°F) | -14°C (6°F) | 0.54" |
| 1996 | -3°C (27°F) | -16°C (3°F) | 0.08" |
| 1995 | 8°C (46°F) | -13°C (8°F) | 0" |
| 1994 | 9°C (48°F) | -6°C (22°F) | 0" |
| 1993 | 4°C (39°F) | -10°C (14°F) | 0.02" |
| 1992 | -16°C (4°F) | -26°C (-15°F) | 0.02" |
| 1991 | 6°C (42°F) | -2°C (28°F) | 0" |
| 1990 | -14°C (7°F) | -27°C (-17°F) | 0.17" |
| 1989 | -14°C (6°F) | -23°C (-9°F) | 0.04" |
| 1988 | 11°C (52°F) | -3°C (27°F) | 0.18" |
| 1987 | 1°C (34°F) | -12°C (11°F) | 0" |
| 1986 | 3°C (37°F) | -7°C (20°F) | 0" |
| 1985 | 8°C (46°F) | -4°C (25°F) | 0" |
| 1984 | -5°C (23°F) | -24°C (-11°F) | 0" |
| 1983 | -19°C (-2°F) | -28°C (-19°F) | 0" |
| 1982 | 3°C (38°F) | -7°C (19°F) | 0" |
| 1981 | 4°C (40°F) | -7°C (19°F) | 0" |
| 1980 | -19°C (-2°F) | -22°C (-8°F) | 0" |
| 1979 | 11°C (51°F) | -1°C (30°F) | 0" |
| 1978 | -11°C (12°F) | -16°C (4°F) | 0" |
| 1977 | -9°C (16°F) | -17°C (2°F) | 0" |
| 1976 | -5°C (23°F) | -11°C (13°F) | 0" |
| 1975 | 9°C (49°F) | -3°C (27°F) | 0" |
| 1974 | 2°C (36°F) | -12°C (11°F) | 0.05" |
| 1973 | -1°C (30°F) | -9°C (15°F) | 0" |
| 1972 | 6°C (43°F) | -5°C (23°F) | 0" |
| 1971 | -2°C (28°F) | -12°C (10°F) | 0" |