Weather on March 21 in Toronto
Historical weather data for March 21 in Toronto, Canada
Based on 55 years of data from TORONTO ISLAND A
About This Date
March 21st in Toronto, Canada typically brings chilly spring weather, with average highs around 5°C and lows near -2°C. Over 55 years of records, the warmest March 21st was in 2012 (17°C average), while the coldest was 1988 (-9°C) — a 46°F range across recorded history. Precipitation has occurred on 44% of recorded March 21st dates, with snow falling 13% of the time (heaviest snowfall: 6.9"). The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
Planning for March 21st in Toronto? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 14°C (57°F) | -1°C (30°F) | 0" |
| 2024 | 0°C (32°F) | -6°C (22°F) | 0" |
| 2023 | 10°C (50°F) | 4°C (40°F) | 0" |
| 2022 | 14°C (58°F) | 2°C (35°F) | 0" |
| 2021 | 16°C (60°F) | 2°C (36°F) | 0" |
| 2020 | 2°C (35°F) | -8°C (18°F) | 0.09" |
| 2019 | 8°C (46°F) | 3°C (38°F) | 0" |
| 2018 | 6°C (43°F) | -4°C (25°F) | 0" |
| 2017 | 13°C (56°F) | -3°C (27°F) | 0" |
| 2016 | 5°C (41°F) | -2°C (29°F) | 0" |
| 2015 | 7°C (44°F) | -5°C (23°F) | 0.37" |
| 2014 | 2°C (36°F) | -2°C (28°F) | 0" |
| 2013 | 0°C (32°F) | -6°C (21°F) | 0" |
| 2012 | 22°C (72°F) | 11°C (51°F) | 0.07" |
| 2011 | 10°C (50°F) | 3°C (37°F) | 0.45" |
| 2010 | 6°C (42°F) | 0°C (32°F) | 0" |
| 2009 | 5°C (41°F) | -3°C (26°F) | 0" |
| 2008 | 1°C (34°F) | -4°C (25°F) | 0" |
| 2007 | 7°C (44°F) | -4°C (24°F) | 0" |
| 2006 | 2°C (35°F) | -6°C (21°F) | 0" |
| 2005 | 6°C (43°F) | 0°C (32°F) | 0.1" |
| 2004 | 3°C (37°F) | -6°C (21°F) | 0.05" |
| 2003 | 6°C (42°F) | 2°C (36°F) | 0.1" |
| 2002 | 4°C (39°F) | -7°C (19°F) | 0.1" |
| 2001 | 6°C (43°F) | 3°C (37°F) | 0.06" |
| 2000 | 10°C (50°F) | 5°C (41°F) | 0" |
| 1999 | 9°C (48°F) | 2°C (36°F) | 0" |
| 1998 | -1°C (30°F) | -3°C (27°F) | 1.58" |
| 1997 | 2°C (36°F) | -1°C (30°F) | 0.25" |
| 1996 | 1°C (33°F) | -6°C (22°F) | 0.05" |
| 1995 | 7°C (45°F) | 3°C (38°F) | -- |
| 1994 | 3°C (38°F) | 1°C (33°F) | 1.44" |
| 1993 | 4°C (39°F) | 0°C (32°F) | 0.08" |
| 1992 | 0°C (32°F) | -7°C (20°F) | 0.02" |
| 1991 | 4°C (40°F) | 1°C (33°F) | 0.2" |
| 1990 | 8°C (46°F) | -2°C (29°F) | 0.04" |
| 1989 | 0°C (32°F) | -5°C (23°F) | 0" |
| 1988 | -5°C (23°F) | -13°C (8°F) | 0" |
| 1987 | 12°C (53°F) | 2°C (36°F) | 0" |
| 1986 | -1°C (30°F) | -13°C (9°F) | 0" |
| 1985 | 1°C (34°F) | -5°C (23°F) | 0" |
| 1984 | 5°C (41°F) | 1°C (34°F) | 0.92" |
| 1983 | -2°C (28°F) | -6°C (21°F) | 1.18" |
| 1982 | 4°C (40°F) | 1°C (34°F) | 0.2" |
| 1981 | 6°C (42°F) | -6°C (22°F) | 0" |
| 1980 | 8°C (46°F) | 3°C (38°F) | -- |
| 1979 | 11°C (51°F) | 3°C (38°F) | 0" |
| 1978 | 6°C (43°F) | 0°C (32°F) | 1.09" |
| 1977 | 3°C (38°F) | -2°C (28°F) | 0" |
| 1976 | 11°C (52°F) | -9°C (16°F) | 0.08" |
| 1975 | 2°C (35°F) | -4°C (24°F) | 0" |
| 1974 | 2°C (35°F) | -4°C (24°F) | 0.15" |
| 1973 | -1°C (31°F) | -4°C (25°F) | -- |
| 1972 | 5°C (41°F) | 1°C (34°F) | 1.19" |
| 1971 | 3°C (38°F) | -2°C (28°F) | 0" |