Weather on August 21 in Toronto
Historical weather data for August 21 in Toronto, Canada
Based on 54 years of data from TORONTO ISLAND A
About This Date
August 21st in Toronto, Canada typically brings pleasant summer weather, with average highs around 25°C and lows near 17°C. Over 54 years of records, the warmest August 21st was in 2021 (26°C average), while the coldest was 1982 (13°C) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 35% of August 21st dates historically, with the wettest August 21st recording 3.88" of rain. The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.
Planning for August 21st in Toronto? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2024 | 22°C (71°F) | 12°C (53°F) | 0" |
| 2023 | 26°C (78°F) | 18°C (64°F) | 0" |
| 2022 | 26°C (79°F) | 19°C (67°F) | 1.04" |
| 2021 | 29°C (85°F) | 23°C (74°F) | 0" |
| 2020 | 30°C (86°F) | 18°C (64°F) | 0.09" |
| 2019 | 29°C (85°F) | 21°C (69°F) | 0.11" |
| 2018 | 26°C (78°F) | 20°C (68°F) | 3.88" |
| 2017 | 29°C (84°F) | 19°C (66°F) | 0" |
| 2016 | 27°C (81°F) | 17°C (63°F) | 0.2" |
| 2015 | 23°C (73°F) | 16°C (60°F) | 0" |
| 2014 | 26°C (79°F) | 18°C (64°F) | 0.66" |
| 2013 | 27°C (80°F) | 18°C (64°F) | 0" |
| 2012 | 24°C (76°F) | 13°C (56°F) | 0" |
| 2011 | 23°C (73°F) | 16°C (60°F) | 2.03" |
| 2010 | 23°C (74°F) | 20°C (68°F) | 2.53" |
| 2009 | 25°C (77°F) | 20°C (68°F) | 0" |
| 2008 | 23°C (74°F) | 15°C (59°F) | 0" |
| 2007 | 18°C (64°F) | 16°C (61°F) | 0" |
| 2006 | 27°C (80°F) | 14°C (58°F) | 0" |
| 2005 | 28°C (83°F) | 18°C (64°F) | 0" |
| 2004 | 21°C (70°F) | 13°C (55°F) | 0" |
| 2003 | 28°C (83°F) | 19°C (66°F) | 0.4" |
| 2002 | 24°C (76°F) | 17°C (62°F) | 0" |
| 2001 | 28°C (82°F) | 17°C (63°F) | 0" |
| 2000 | 21°C (69°F) | 12°C (53°F) | 0" |
| 1999 | 24°C (75°F) | 13°C (55°F) | 0" |
| 1998 | 26°C (78°F) | 19°C (66°F) | 0.05" |
| 1997 | 19°C (67°F) | 15°C (59°F) | 0.22" |
| 1996 | 29°C (85°F) | 19°C (67°F) | 0" |
| 1995 | 31°C (87°F) | 18°C (64°F) | 0.08" |
| 1994 | 26°C (79°F) | 17°C (63°F) | 0.06" |
| 1993 | 20°C (68°F) | 14°C (58°F) | 0" |
| 1992 | 24°C (76°F) | 11°C (51°F) | 0" |
| 1991 | 25°C (77°F) | 16°C (61°F) | 1.12" |
| 1990 | 22°C (71°F) | 16°C (61°F) | 0" |
| 1989 | 29°C (84°F) | 19°C (67°F) | 0" |
| 1988 | 23°C (74°F) | 15°C (59°F) | 0" |
| 1987 | 28°C (83°F) | 16°C (61°F) | 0" |
| 1986 | 26°C (78°F) | 19°C (67°F) | 0.26" |
| 1985 | 21°C (69°F) | 15°C (59°F) | 0" |
| 1984 | 25°C (77°F) | 16°C (61°F) | 0" |
| 1983 | 24°C (76°F) | 17°C (63°F) | 0.1" |
| 1982 | 17°C (62°F) | 9°C (49°F) | 0.06" |
| 1981 | 26°C (79°F) | 16°C (60°F) | 0" |
| 1980 | 24°C (76°F) | 20°C (68°F) | 0" |
| 1979 | 24°C (76°F) | 14°C (57°F) | 0" |
| 1978 | 21°C (70°F) | 12°C (53°F) | 0" |
| 1977 | 18°C (65°F) | 13°C (55°F) | 1.75" |
| 1976 | 29°C (84°F) | 21°C (69°F) | 0" |
| 1975 | 21°C (70°F) | 13°C (55°F) | 0.28" |
| 1974 | 29°C (85°F) | 21°C (69°F) | 0" |
| 1973 | 23°C (73°F) | 18°C (64°F) | -- |
| 1972 | 28°C (82°F) | 17°C (62°F) | 0" |
| 1971 | 28°C (82°F) | 19°C (66°F) | 0" |