Weather on August 12 in Ottawa
Historical weather data for August 12 in Ottawa, Canada
Based on 54 years of data from OTTAWA CDA
About This Date
August 12th in Ottawa, Canada typically brings pleasant summer weather, with average highs around 26°C and lows near 15°C. Over 54 years of records, the warmest August 12th was in 2021 (27°C average), while the coldest was 1992 (13°C) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 30% of August 12th dates historically, with the wettest August 12th recording 4.98" of rain. The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
Planning for August 12th in Ottawa? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2025 | 35°C (95°F) | 18°C (64°F) | -- |
| 2023 | 23°C (73°F) | 13°C (56°F) | 27 mm |
| 2022 | 23°C (73°F) | 12°C (54°F) | 0 mm |
| 2021 | 31°C (88°F) | 22°C (72°F) | 0 mm |
| 2020 | 29°C (85°F) | 18°C (64°F) | 0 mm |
| 2019 | 28°C (83°F) | 16°C (61°F) | 12 mm |
| 2018 | 28°C (83°F) | 14°C (58°F) | 0 mm |
| 2017 | 24°C (75°F) | 14°C (58°F) | 38 mm |
| 2016 | 27°C (80°F) | 18°C (64°F) | 17 mm |
| 2015 | 21°C (70°F) | 14°C (57°F) | 0 mm |
| 2014 | 22°C (72°F) | 17°C (62°F) | 126 mm |
| 2013 | 26°C (78°F) | 14°C (57°F) | 28 mm |
| 2012 | 27°C (80°F) | 18°C (64°F) | 40 mm |
| 2011 | 28°C (83°F) | 12°C (53°F) | 0 mm |
| 2010 | 26°C (78°F) | 16°C (61°F) | 0 mm |
| 2009 | 28°C (82°F) | 16°C (60°F) | 0 mm |
| 2008 | 23°C (73°F) | 14°C (57°F) | 0 mm |
| 2007 | 31°C (87°F) | 18°C (64°F) | 0 mm |
| 2006 | 22°C (71°F) | 8°C (47°F) | 0 mm |
| 2005 | 23°C (74°F) | 18°C (65°F) | 7 mm |
| 2004 | 23°C (73°F) | 13°C (55°F) | 12 mm |
| 2003 | 29°C (84°F) | 20°C (68°F) | 0 mm |
| 2002 | 34°C (93°F) | 18°C (64°F) | 0 mm |
| 2001 | 29°C (85°F) | 16°C (61°F) | 0 mm |
| 2000 | 26°C (79°F) | 16°C (61°F) | 0 mm |
| 1999 | 27°C (80°F) | 13°C (56°F) | 0 mm |
| 1998 | 25°C (77°F) | 14°C (58°F) | 0 mm |
| 1997 | 24°C (75°F) | 11°C (51°F) | 16 mm |
| 1996 | 24°C (76°F) | 11°C (51°F) | 0 mm |
| 1995 | 28°C (82°F) | 22°C (71°F) | 0 mm |
| 1994 | 25°C (77°F) | 12°C (53°F) | 0 mm |
| 1993 | 27°C (81°F) | 18°C (64°F) | 0 mm |
| 1992 | 18°C (65°F) | 8°C (47°F) | 0 mm |
| 1991 | 30°C (86°F) | 14°C (57°F) | 0 mm |
| 1990 | 24°C (75°F) | 17°C (62°F) | 16 mm |
| 1989 | 26°C (78°F) | 19°C (66°F) | 0 mm |
| 1988 | 31°C (88°F) | 19°C (67°F) | 0 mm |
| 1987 | 26°C (78°F) | 9°C (49°F) | 0 mm |
| 1986 | 22°C (71°F) | 10°C (50°F) | 0 mm |
| 1985 | 24°C (76°F) | 10°C (50°F) | 0 mm |
| 1984 | 26°C (78°F) | 18°C (65°F) | 34 mm |
| 1983 | 23°C (74°F) | 14°C (58°F) | 0 mm |
| 1982 | 19°C (67°F) | 12°C (54°F) | 0 mm |
| 1981 | 25°C (77°F) | 13°C (56°F) | 0 mm |
| 1980 | 23°C (74°F) | 17°C (63°F) | 0 mm |
| 1979 | 19°C (67°F) | 11°C (51°F) | 0 mm |
| 1978 | 28°C (82°F) | 16°C (60°F) | 0 mm |
| 1977 | 24°C (76°F) | 14°C (57°F) | 0 mm |
| 1976 | 27°C (81°F) | 17°C (62°F) | 14 mm |
| 1975 | 30°C (86°F) | 16°C (60°F) | 0 mm |
| 1974 | 24°C (75°F) | 14°C (57°F) | 1 mm |
| 1973 | 25°C (77°F) | 17°C (63°F) | 0 mm |
| 1972 | 23°C (73°F) | 14°C (58°F) | 2 mm |
| 1971 | 22°C (72°F) | 11°C (52°F) | 3 mm |