Weather on July 21 in Calgary
Historical weather data for July 21 in Calgary, Canada
Based on 54 years of data from CALGARY GLENMORE DAM
About This Date
July 21st in Calgary, Canada typically brings pleasant summer weather, with average highs around 24°C and lows near 11°C — a 25°F daily swing. Over 54 years of records, the warmest July 21st was in 1979 (23°C average), while the coldest was 1984 (10°C) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 31% of July 21st dates historically, with the wettest July 21st recording 1.12" of rain. The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
Planning for July 21st in Calgary? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2025 | 19°C (66°F) | 12°C (54°F) | -- |
| 2023 | 29°C (85°F) | 12°C (54°F) | 4 mm |
| 2022 | 28°C (83°F) | 11°C (52°F) | 0 mm |
| 2021 | 28°C (82°F) | 16°C (60°F) | 0 mm |
| 2020 | 26°C (78°F) | 12°C (53°F) | 0 mm |
| 2019 | 22°C (72°F) | 8°C (46°F) | 0 mm |
| 2018 | 24°C (76°F) | 9°C (49°F) | 1 mm |
| 2017 | 22°C (71°F) | 11°C (52°F) | 0 mm |
| 2016 | 27°C (81°F) | 9°C (49°F) | 0 mm |
| 2015 | 28°C (82°F) | 13°C (55°F) | 0 mm |
| 2014 | 19°C (67°F) | 12°C (53°F) | 3 mm |
| 2013 | 22°C (71°F) | 12°C (54°F) | 0 mm |
| 2012 | 26°C (78°F) | 12°C (53°F) | 0 mm |
| 2011 | 23°C (73°F) | 10°C (50°F) | 0 mm |
| 2010 | 22°C (71°F) | 8°C (46°F) | 0 mm |
| 2009 | 27°C (80°F) | 9°C (49°F) | 0 mm |
| 2008 | 30°C (86°F) | 12°C (54°F) | 0 mm |
| 2007 | 28°C (82°F) | 12°C (54°F) | 0 mm |
| 2006 | 31°C (87°F) | 11°C (52°F) | 0 mm |
| 2005 | 21°C (69°F) | 10°C (50°F) | 0 mm |
| 2004 | 22°C (72°F) | 11°C (51°F) | 2 mm |
| 2003 | 28°C (83°F) | 10°C (50°F) | 0 mm |
| 2002 | 23°C (73°F) | 9°C (48°F) | 0 mm |
| 2001 | 23°C (73°F) | 12°C (53°F) | 2 mm |
| 2000 | 27°C (81°F) | 10°C (50°F) | 1 mm |
| 1999 | 27°C (80°F) | 8°C (46°F) | 0 mm |
| 1998 | 20°C (68°F) | 8°C (46°F) | 0 mm |
| 1997 | 29°C (84°F) | 11°C (51°F) | 0 mm |
| 1996 | 23°C (74°F) | 6°C (42°F) | 1 mm |
| 1995 | 19°C (66°F) | 11°C (52°F) | 13 mm |
| 1994 | 33°C (92°F) | 12°C (53°F) | 0 mm |
| 1993 | 21°C (70°F) | 8°C (47°F) | 8 mm |
| 1992 | 23°C (73°F) | 9°C (49°F) | 0 mm |
| 1991 | 19°C (66°F) | 9°C (49°F) | 6 mm |
| 1990 | 21°C (69°F) | 4°C (39°F) | 0 mm |
| 1989 | 26°C (79°F) | 11°C (52°F) | 0 mm |
| 1988 | 32°C (90°F) | 13°C (55°F) | 0 mm |
| 1987 | 20°C (68°F) | 8°C (46°F) | 4 mm |
| 1986 | 26°C (79°F) | 10°C (50°F) | 0 mm |
| 1985 | 31°C (87°F) | 12°C (53°F) | 0 mm |
| 1984 | 14°C (57°F) | 6°C (43°F) | 11 mm |
| 1983 | 23°C (73°F) | 9°C (49°F) | 0 mm |
| 1982 | 26°C (78°F) | 10°C (50°F) | 0 mm |
| 1981 | 19°C (66°F) | 13°C (55°F) | 9 mm |
| 1980 | 26°C (78°F) | 11°C (51°F) | 0 mm |
| 1979 | 33°C (92°F) | 13°C (55°F) | 7 mm |
| 1978 | 24°C (75°F) | 8°C (47°F) | 3 mm |
| 1977 | -- | 8°C (47°F) | 0 mm |
| 1976 | 23°C (73°F) | 11°C (52°F) | 0 mm |
| 1975 | 24°C (75°F) | 11°C (51°F) | -- |
| 1974 | 25°C (77°F) | 7°C (44°F) | 0 mm |
| 1973 | 18°C (64°F) | 14°C (57°F) | 18 mm |
| 1972 | 14°C (58°F) | 9°C (49°F) | 28 mm |
| 1971 | 27°C (81°F) | 14°C (57°F) | 0 mm |