Weather on May 11 in Ottawa
Historical weather data for May 11 in Ottawa, Canada
Based on 56 years of data from OTTAWA CDA RCS
About This Date
May 11th in Ottawa, Canada typically brings mild spring weather, with average highs around 18°C and lows near 7°C. Over 56 years of records, the warmest May 11th was in 1993 (19°C average), while the coldest was 2020 (6°C) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 38% of May 11th dates historically, with the wettest May 11th recording 1.88" of rain. The last decade has been 4.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.5°F cooler on this date compared to 20-30 years ago.
Planning for May 11th in Ottawa? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 12°C (53°F) | 3°C (38°F) | -- |
| 2025 | 22°C (72°F) | 3°C (37°F) | 0 mm |
| 2024 | 17°C (63°F) | 6°C (42°F) | 1 mm |
| 2023 | 26°C (78°F) | 11°C (52°F) | 1 mm |
| 2022 | 28°C (83°F) | 6°C (43°F) | 0 mm |
| 2021 | 11°C (52°F) | 4°C (40°F) | 5 mm |
| 2020 | 11°C (51°F) | 2°C (35°F) | 0 mm |
| 2019 | 14°C (57°F) | 5°C (41°F) | 0 mm |
| 2018 | 12°C (54°F) | 1°C (34°F) | 0 mm |
| 2017 | 12°C (54°F) | 6°C (42°F) | 0 mm |
| 2016 | 23°C (73°F) | 4°C (39°F) | 0 mm |
| 2015 | 13°C (55°F) | 8°C (46°F) | 15 mm |
| 2014 | 23°C (74°F) | 8°C (47°F) | 0 mm |
| 2013 | 14°C (57°F) | 8°C (47°F) | 2 mm |
| 2012 | 19°C (66°F) | 5°C (41°F) | 0 mm |
| 2011 | 19°C (67°F) | 8°C (46°F) | 0 mm |
| 2010 | 17°C (62°F) | -1°C (30°F) | 0 mm |
| 2009 | 15°C (59°F) | 2°C (35°F) | 0 mm |
| 2008 | 21°C (69°F) | 6°C (42°F) | 0 mm |
| 2007 | 21°C (70°F) | 8°C (47°F) | 0 mm |
| 2006 | 24°C (76°F) | 11°C (52°F) | 0 mm |
| 2005 | 23°C (74°F) | 14°C (58°F) | 0 mm |
| 2004 | 22°C (72°F) | 11°C (52°F) | 0 mm |
| 2003 | 17°C (62°F) | 7°C (45°F) | 38 mm |
| 2002 | 14°C (57°F) | 4°C (39°F) | 0 mm |
| 2001 | 26°C (79°F) | 11°C (51°F) | 2 mm |
| 2000 | 18°C (65°F) | 9°C (49°F) | 0 mm |
| 1999 | 16°C (60°F) | 2°C (36°F) | 0 mm |
| 1998 | 22°C (72°F) | 13°C (55°F) | 0 mm |
| 1997 | 18°C (64°F) | 6°C (42°F) | 13 mm |
| 1996 | 8°C (46°F) | 6°C (42°F) | 36 mm |
| 1995 | 13°C (56°F) | 10°C (50°F) | 38 mm |
| 1994 | 17°C (62°F) | 2°C (35°F) | 15 mm |
| 1993 | 26°C (78°F) | 13°C (55°F) | 0 mm |
| 1992 | 26°C (78°F) | 9°C (49°F) | 0 mm |
| 1991 | 26°C (78°F) | 9°C (49°F) | 0 mm |
| 1990 | 12°C (53°F) | 3°C (38°F) | 1 mm |
| 1989 | 13°C (55°F) | 7°C (44°F) | 16 mm |
| 1988 | 15°C (59°F) | 7°C (44°F) | 0 mm |
| 1987 | 18°C (64°F) | 6°C (42°F) | 28 mm |
| 1986 | 20°C (68°F) | 9°C (49°F) | 0 mm |
| 1985 | 21°C (70°F) | 12°C (53°F) | 0 mm |
| 1984 | 17°C (63°F) | 4°C (40°F) | 30 mm |
| 1983 | 11°C (51°F) | 3°C (37°F) | 0 mm |
| 1982 | 18°C (64°F) | 4°C (39°F) | 0 mm |
| 1981 | 15°C (59°F) | 8°C (46°F) | 48 mm |
| 1980 | 17°C (63°F) | 7°C (45°F) | 3 mm |
| 1979 | 23°C (73°F) | 13°C (56°F) | 0 mm |
| 1978 | 19°C (66°F) | 2°C (36°F) | 0 mm |
| 1977 | 22°C (72°F) | 6°C (42°F) | 0 mm |
| 1976 | 15°C (59°F) | 10°C (50°F) | 35 mm |
| 1975 | 24°C (76°F) | 6°C (42°F) | 0 mm |
| 1974 | 14°C (57°F) | 1°C (33°F) | 5 mm |
| 1973 | 18°C (64°F) | 11°C (52°F) | 12 mm |
| 1972 | 15°C (59°F) | 4°C (39°F) | 8 mm |
| 1971 | 25°C (77°F) | 11°C (51°F) | 0 mm |