Weather on July 30 in Ottawa
Historical weather data for July 30 in Ottawa, Canada
Based on 54 years of data from OTTAWA CDA
About This Date
July 30th 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 July 30th was in 1988 (27°C average), while the coldest was 1978 (15°C) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 43% of July 30th dates historically, with the wettest July 30th recording 2.56" of rain. The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.
Planning for July 30th in Ottawa? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2025 | 29°C (85°F) | 18°C (65°F) | 0 mm |
| 2023 | 25°C (77°F) | 12°C (54°F) | 7 mm |
| 2022 | 25°C (77°F) | 12°C (54°F) | 0 mm |
| 2021 | 19°C (66°F) | 12°C (54°F) | 3 mm |
| 2020 | 26°C (79°F) | 16°C (60°F) | 35 mm |
| 2019 | 27°C (81°F) | 21°C (70°F) | 33 mm |
| 2018 | 28°C (82°F) | 15°C (59°F) | 0 mm |
| 2017 | 29°C (84°F) | 12°C (53°F) | 0 mm |
| 2016 | 27°C (80°F) | 14°C (57°F) | 0 mm |
| 2015 | 30°C (86°F) | 21°C (69°F) | 21 mm |
| 2014 | 21°C (69°F) | 13°C (55°F) | 23 mm |
| 2013 | 24°C (75°F) | 12°C (54°F) | 0 mm |
| 2012 | 32°C (90°F) | 14°C (58°F) | 0 mm |
| 2011 | 27°C (80°F) | 15°C (59°F) | 0 mm |
| 2010 | 21°C (70°F) | 9°C (49°F) | 0 mm |
| 2009 | 26°C (78°F) | 16°C (60°F) | 0 mm |
| 2008 | 23°C (73°F) | 13°C (56°F) | 5 mm |
| 2007 | 28°C (83°F) | 13°C (55°F) | 0 mm |
| 2006 | 25°C (77°F) | 14°C (58°F) | 0 mm |
| 2005 | 25°C (77°F) | 12°C (54°F) | 0 mm |
| 2004 | 29°C (84°F) | 17°C (63°F) | 22 mm |
| 2003 | 27°C (81°F) | 13°C (55°F) | 2 mm |
| 2002 | 30°C (86°F) | 22°C (71°F) | 1 mm |
| 2001 | 24°C (76°F) | 17°C (62°F) | 0 mm |
| 2000 | 28°C (82°F) | 16°C (61°F) | 0 mm |
| 1999 | 32°C (89°F) | 19°C (66°F) | 0 mm |
| 1998 | 22°C (71°F) | 14°C (58°F) | 8 mm |
| 1997 | 29°C (85°F) | 12°C (54°F) | 0 mm |
| 1996 | 19°C (66°F) | 17°C (63°F) | 27 mm |
| 1995 | 28°C (82°F) | 18°C (64°F) | 0 mm |
| 1994 | 22°C (72°F) | 16°C (61°F) | 65 mm |
| 1993 | 24°C (76°F) | 17°C (62°F) | 0 mm |
| 1992 | 23°C (73°F) | 11°C (52°F) | 0 mm |
| 1991 | 28°C (83°F) | 18°C (64°F) | 10 mm |
| 1990 | 31°C (88°F) | 18°C (64°F) | 38 mm |
| 1989 | 27°C (81°F) | 13°C (56°F) | 0 mm |
| 1988 | 33°C (92°F) | 20°C (68°F) | 2 mm |
| 1987 | 23°C (74°F) | 16°C (60°F) | 0 mm |
| 1986 | 19°C (66°F) | 17°C (62°F) | 10 mm |
| 1985 | 23°C (73°F) | 14°C (58°F) | 0 mm |
| 1984 | 23°C (74°F) | 17°C (62°F) | 0 mm |
| 1983 | 28°C (82°F) | 21°C (69°F) | 0 mm |
| 1982 | 27°C (81°F) | 11°C (52°F) | 5 mm |
| 1981 | 27°C (80°F) | 10°C (50°F) | 0 mm |
| 1980 | 25°C (77°F) | 16°C (61°F) | 1 mm |
| 1979 | 29°C (85°F) | 14°C (57°F) | 1 mm |
| 1978 | 21°C (69°F) | 9°C (49°F) | 0 mm |
| 1977 | 21°C (70°F) | 18°C (64°F) | 1 mm |
| 1976 | 23°C (73°F) | 17°C (63°F) | 0 mm |
| 1975 | 32°C (89°F) | 18°C (64°F) | 0 mm |
| 1974 | 24°C (76°F) | 17°C (62°F) | 1 mm |
| 1973 | 28°C (82°F) | 13°C (55°F) | 0 mm |
| 1972 | 27°C (80°F) | 12°C (53°F) | 0 mm |
| 1971 | 23°C (74°F) | 12°C (54°F) | 1 mm |