Weather on March 21 in Calgary
Historical weather data for March 21 in Calgary, Canada
Based on 56 years of data from CALGARY GLENMORE DAM
About This Date
March 21st in Calgary, Canada typically brings chilly spring weather, with average highs around 4°C and lows near -6°C. Over 56 years of records, the warmest March 21st was in 2010 (9°C average), while the coldest was 2002 (-19°C) — a 50°F range across recorded history. Precipitation has occurred on 29% of recorded March 21st dates, with snow falling 20% of the time (heaviest snowfall: 3"). The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
Planning for March 21st in Calgary? Bring layers as temperatures can vary throughout the day. Check road conditions if traveling, as snow is possible.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2026 | 16°C (60°F) | -2°C (28°F) | -- |
| 2025 | 9°C (49°F) | -3°C (26°F) | -- |
| 2024 | -4°C (24°F) | -10°C (14°F) | 0.76" |
| 2023 | -2°C (29°F) | -9°C (16°F) | 0" |
| 2022 | 11°C (52°F) | 1°C (33°F) | 0" |
| 2021 | 8°C (46°F) | -3°C (26°F) | 0" |
| 2020 | 5°C (41°F) | -11°C (13°F) | 0.02" |
| 2019 | 14°C (57°F) | -2°C (28°F) | 0" |
| 2018 | 4°C (40°F) | -3°C (26°F) | 0" |
| 2017 | 6°C (43°F) | -4°C (24°F) | 0" |
| 2016 | 4°C (40°F) | -2°C (28°F) | 0" |
| 2015 | 1°C (33°F) | -3°C (26°F) | 0.02" |
| 2014 | -10°C (14°F) | -15°C (5°F) | 0.04" |
| 2013 | 6°C (42°F) | -6°C (21°F) | 0" |
| 2012 | 6°C (42°F) | -5°C (23°F) | 0" |
| 2011 | -3°C (27°F) | -6°C (21°F) | 0.4" |
| 2010 | 14°C (57°F) | 3°C (38°F) | 0" |
| 2009 | 11°C (51°F) | -3°C (26°F) | 0.13" |
| 2008 | 7°C (44°F) | -8°C (18°F) | 0" |
| 2007 | 5°C (41°F) | -6°C (21°F) | 0" |
| 2006 | -1°C (30°F) | -5°C (23°F) | 0.19" |
| 2005 | 1°C (33°F) | -7°C (19°F) | 0.71" |
| 2004 | 6°C (43°F) | -6°C (21°F) | 0" |
| 2003 | 12°C (53°F) | 0°C (32°F) | -- |
| 2002 | -11°C (13°F) | -27°C (-17°F) | 0" |
| 2001 | 2°C (35°F) | -12°C (11°F) | 0" |
| 2000 | 12°C (54°F) | -3°C (27°F) | 0" |
| 1999 | 16°C (60°F) | -5°C (23°F) | 0" |
| 1998 | 1°C (33°F) | -11°C (13°F) | 0" |
| 1997 | 8°C (46°F) | -3°C (26°F) | 0" |
| 1996 | -3°C (26°F) | -7°C (19°F) | 0.06" |
| 1995 | 11°C (52°F) | -1°C (30°F) | 0" |
| 1994 | 8°C (46°F) | -4°C (24°F) | 0.02" |
| 1993 | 11°C (52°F) | 2°C (36°F) | 0" |
| 1992 | 11°C (52°F) | -7°C (20°F) | 0" |
| 1991 | 9°C (49°F) | 0°C (32°F) | 0" |
| 1990 | -3°C (26°F) | -9°C (15°F) | 0.22" |
| 1989 | 3°C (37°F) | -11°C (13°F) | 0" |
| 1988 | 9°C (48°F) | -1°C (30°F) | 0" |
| 1987 | -2°C (28°F) | -5°C (23°F) | 0" |
| 1986 | 16°C (61°F) | 1°C (34°F) | 0" |
| 1985 | 1°C (33°F) | -3°C (27°F) | 0.16" |
| 1984 | 4°C (40°F) | -1°C (31°F) | 0.76" |
| 1983 | -7°C (19°F) | -9°C (15°F) | 0.06" |
| 1982 | 6°C (42°F) | -6°C (21°F) | 0" |
| 1981 | -4°C (24°F) | -13°C (9°F) | 0" |
| 1980 | 4°C (40°F) | -2°C (28°F) | 0" |
| 1979 | 6°C (43°F) | -8°C (18°F) | 0" |
| 1978 | 9°C (49°F) | 0°C (32°F) | -- |
| 1977 | 8°C (46°F) | -9°C (16°F) | 0.05" |
| 1976 | 8°C (46°F) | -2°C (29°F) | 0" |
| 1975 | 2°C (36°F) | -11°C (12°F) | -- |
| 1974 | -5°C (23°F) | -11°C (13°F) | 0.13" |
| 1973 | 7°C (45°F) | 1°C (33°F) | 0" |
| 1972 | 9°C (48°F) | -3°C (27°F) | 0" |
| 1971 | -8°C (17°F) | -17°C (2°F) | -- |