Weather on June 21 in Ottawa
Historical weather data for June 21 in Ottawa, Canada
Based on 55 years of data from OTTAWA CDA RCS
About This Date
June 21st in Ottawa, Canada typically brings pleasant summer weather, with average highs around 26°C and lows near 14°C. Over 55 years of records, the warmest June 21st was in 2012 (28°C average), while the coldest was 1992 (13°C) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 44% of June 21st dates historically, with the wettest June 21st recording 2.69" of rain. The last decade has been 2.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.6°F cooler on this date compared to 20-30 years ago.
Planning for June 21st in Ottawa? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 23°C (73°F) | 16°C (60°F) | -- |
| 2025 | 27°C (80°F) | 12°C (53°F) | -- |
| 2023 | 27°C (81°F) | 16°C (61°F) | 0 mm |
| 2022 | 21°C (70°F) | 13°C (55°F) | 37 mm |
| 2021 | 28°C (83°F) | 17°C (62°F) | 13 mm |
| 2020 | 33°C (91°F) | 17°C (63°F) | 0 mm |
| 2019 | 23°C (74°F) | 15°C (59°F) | 0 mm |
| 2018 | 21°C (70°F) | 12°C (53°F) | 0 mm |
| 2017 | 23°C (73°F) | 14°C (58°F) | 3 mm |
| 2016 | 23°C (74°F) | 15°C (59°F) | 0 mm |
| 2015 | 27°C (80°F) | 18°C (64°F) | 3 mm |
| 2014 | 23°C (73°F) | 13°C (55°F) | 0 mm |
| 2013 | 27°C (81°F) | 14°C (57°F) | 0 mm |
| 2012 | 34°C (93°F) | 23°C (73°F) | 0 mm |
| 2011 | 28°C (82°F) | 13°C (56°F) | 0 mm |
| 2010 | 26°C (78°F) | 14°C (58°F) | 0 mm |
| 2009 | 26°C (78°F) | 17°C (63°F) | 5 mm |
| 2008 | 26°C (79°F) | 12°C (54°F) | 6 mm |
| 2007 | 22°C (71°F) | 9°C (49°F) | 6 mm |
| 2006 | 25°C (77°F) | 9°C (49°F) | 13 mm |
| 2005 | 27°C (81°F) | 14°C (57°F) | 7 mm |
| 2004 | 24°C (76°F) | 10°C (50°F) | 20 mm |
| 2003 | 28°C (83°F) | 11°C (51°F) | 0 mm |
| 2002 | 30°C (86°F) | 16°C (61°F) | 0 mm |
| 2001 | 26°C (79°F) | 12°C (53°F) | 6 mm |
| 2000 | 23°C (73°F) | 18°C (64°F) | 60 mm |
| 1999 | 28°C (83°F) | 12°C (54°F) | 0 mm |
| 1998 | 32°C (89°F) | 18°C (65°F) | 0 mm |
| 1997 | 28°C (83°F) | 18°C (65°F) | 36 mm |
| 1996 | 28°C (82°F) | 20°C (68°F) | 12 mm |
| 1995 | 25°C (77°F) | 13°C (56°F) | 0 mm |
| 1994 | 30°C (86°F) | 18°C (65°F) | 0 mm |
| 1993 | 23°C (74°F) | 18°C (64°F) | 20 mm |
| 1992 | 16°C (60°F) | 10°C (50°F) | 5 mm |
| 1991 | 22°C (71°F) | 17°C (63°F) | 0 mm |
| 1990 | 21°C (69°F) | 14°C (58°F) | 23 mm |
| 1989 | 28°C (83°F) | 18°C (64°F) | 0 mm |
| 1988 | 29°C (84°F) | 19°C (66°F) | 0 mm |
| 1987 | 27°C (81°F) | 11°C (51°F) | 0 mm |
| 1986 | 25°C (77°F) | 9°C (49°F) | 0 mm |
| 1985 | 26°C (78°F) | 9°C (49°F) | 0 mm |
| 1984 | 26°C (79°F) | 9°C (48°F) | 0 mm |
| 1983 | 31°C (87°F) | 16°C (60°F) | 0 mm |
| 1982 | 19°C (67°F) | 12°C (53°F) | 2 mm |
| 1981 | 23°C (73°F) | 13°C (55°F) | 15 mm |
| 1980 | 24°C (75°F) | 13°C (55°F) | 0 mm |
| 1979 | 27°C (80°F) | 14°C (58°F) | 17 mm |
| 1978 | 26°C (78°F) | 16°C (60°F) | 7 mm |
| 1977 | 21°C (70°F) | 13°C (56°F) | 0 mm |
| 1976 | 24°C (76°F) | 17°C (62°F) | 2 mm |
| 1975 | 27°C (81°F) | 11°C (52°F) | 0 mm |
| 1974 | 21°C (69°F) | 16°C (60°F) | 14 mm |
| 1973 | 28°C (82°F) | 20°C (68°F) | 0 mm |
| 1972 | 21°C (70°F) | 19°C (66°F) | 68 mm |
| 1971 | 23°C (74°F) | 19°C (67°F) | 0 mm |