Weather on May 20 in Ottawa
Historical weather data for May 20 in Ottawa, Canada
Based on 55 years of data from OTTAWA CDA
About This Date
May 20th in Ottawa, Canada typically brings pleasant spring weather, with average highs around 21°C and lows near 9°C. Over 55 years of records, the warmest May 20th was in 1975 (23°C average), while the coldest was 1976 (8°C) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 35% of May 20th dates historically, with the wettest May 20th recording 2.9" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for May 20th in Ottawa? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 26°C (79°F) | 17°C (62°F) | -- |
| 2025 | 14°C (58°F) | 3°C (37°F) | -- |
| 2023 | 17°C (62°F) | 12°C (54°F) | 40 mm |
| 2022 | 27°C (80°F) | 8°C (46°F) | 0 mm |
| 2021 | 28°C (83°F) | 15°C (59°F) | 0 mm |
| 2020 | 23°C (74°F) | 8°C (46°F) | 0 mm |
| 2019 | 22°C (71°F) | 13°C (55°F) | 0 mm |
| 2018 | 18°C (65°F) | 8°C (47°F) | 32 mm |
| 2017 | 18°C (65°F) | 5°C (41°F) | 0 mm |
| 2016 | 24°C (76°F) | 7°C (44°F) | 0 mm |
| 2015 | 15°C (59°F) | 4°C (39°F) | 0 mm |
| 2014 | 23°C (74°F) | 7°C (44°F) | 0 mm |
| 2013 | 22°C (71°F) | 14°C (58°F) | 0 mm |
| 2012 | 32°C (89°F) | 11°C (52°F) | 0 mm |
| 2011 | 25°C (77°F) | 14°C (58°F) | 0 mm |
| 2010 | 27°C (81°F) | 13°C (55°F) | 0 mm |
| 2009 | 24°C (76°F) | 7°C (45°F) | 2 mm |
| 2008 | 17°C (62°F) | 4°C (39°F) | 0 mm |
| 2007 | 14°C (58°F) | 9°C (48°F) | 5 mm |
| 2006 | 9°C (49°F) | 8°C (46°F) | 12 mm |
| 2005 | 21°C (69°F) | 7°C (44°F) | 0 mm |
| 2004 | 23°C (74°F) | 8°C (46°F) | 5 mm |
| 2003 | 24°C (76°F) | 12°C (54°F) | 16 mm |
| 2002 | 11°C (52°F) | -- | 0 mm |
| 2001 | 23°C (74°F) | 9°C (48°F) | 0 mm |
| 2000 | 18°C (65°F) | 3°C (37°F) | 0 mm |
| 1999 | 19°C (66°F) | 5°C (41°F) | 0 mm |
| 1998 | 29°C (85°F) | 14°C (57°F) | 0 mm |
| 1997 | 14°C (57°F) | 8°C (46°F) | 0 mm |
| 1996 | 27°C (80°F) | 18°C (65°F) | 0 mm |
| 1995 | 20°C (68°F) | 6°C (42°F) | 1 mm |
| 1994 | 23°C (73°F) | 5°C (41°F) | 0 mm |
| 1993 | 18°C (64°F) | 6°C (42°F) | 0 mm |
| 1992 | 26°C (79°F) | 6°C (43°F) | 0 mm |
| 1991 | 23°C (74°F) | 4°C (40°F) | 0 mm |
| 1990 | 12°C (53°F) | 5°C (41°F) | 27 mm |
| 1989 | 29°C (84°F) | 15°C (59°F) | 3 mm |
| 1988 | 21°C (69°F) | 14°C (58°F) | 9 mm |
| 1987 | 18°C (64°F) | 8°C (46°F) | 0 mm |
| 1986 | 12°C (53°F) | 9°C (48°F) | 74 mm |
| 1985 | 26°C (78°F) | 7°C (45°F) | 22 mm |
| 1984 | 18°C (65°F) | 9°C (48°F) | 8 mm |
| 1983 | 21°C (69°F) | 11°C (52°F) | 1 mm |
| 1982 | 23°C (73°F) | 13°C (55°F) | 0 mm |
| 1981 | 21°C (69°F) | 3°C (38°F) | 0 mm |
| 1980 | 22°C (72°F) | 4°C (40°F) | 0 mm |
| 1979 | 24°C (75°F) | 14°C (58°F) | 25 mm |
| 1978 | 27°C (81°F) | 13°C (55°F) | 10 mm |
| 1977 | 27°C (80°F) | 16°C (60°F) | 0 mm |
| 1976 | 9°C (49°F) | 6°C (43°F) | 2 mm |
| 1975 | 32°C (89°F) | 15°C (59°F) | 0 mm |
| 1974 | 18°C (65°F) | 2°C (36°F) | 0 mm |
| 1973 | 19°C (67°F) | 4°C (40°F) | 0 mm |
| 1972 | 26°C (78°F) | 12°C (53°F) | 0 mm |
| 1971 | 26°C (78°F) | 16°C (61°F) | 7 mm |