Weather on April 21 in Calgary
Historical weather data for April 21 in Calgary, Canada
Based on 56 years of data from CALGARY GLENMORE DAM
About This Date
April 21st in Calgary, Canada typically brings cool spring weather, with average highs around 14°C and lows near 0°C — a 25°F daily swing. Over 56 years of records, the warmest April 21st was in 2006 (14°C average), while the coldest was 2008 (-9°C) — a 42°F range across recorded history. Precipitation has occurred on 14% of recorded April 21st dates, with snow falling 7% of the time. 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 April 21st in Calgary? Bring layers as temperatures can vary throughout the day.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2026 | 22°C (71°F) | 7°C (44°F) | -- |
| 2025 | 4°C (39°F) | 1°C (33°F) | -- |
| 2024 | 13°C (55°F) | -1°C (31°F) | 0" |
| 2023 | 1°C (33°F) | -4°C (25°F) | 0.06" |
| 2022 | 6°C (42°F) | -5°C (23°F) | 0" |
| 2021 | 19°C (66°F) | -1°C (30°F) | 0" |
| 2020 | 19°C (67°F) | 7°C (44°F) | 0" |
| 2019 | 17°C (62°F) | -1°C (31°F) | 0" |
| 2018 | 14°C (58°F) | 2°C (35°F) | 0" |
| 2017 | 11°C (52°F) | 3°C (38°F) | 0.04" |
| 2016 | 23°C (74°F) | 2°C (36°F) | 0" |
| 2015 | 22°C (71°F) | 8°C (46°F) | 0" |
| 2014 | 17°C (63°F) | 1°C (33°F) | 0" |
| 2013 | -1°C (31°F) | -7°C (20°F) | 0" |
| 2012 | 15°C (59°F) | -3°C (26°F) | 0" |
| 2011 | 7°C (45°F) | -4°C (24°F) | 0" |
| 2010 | 22°C (71°F) | 4°C (40°F) | 0" |
| 2009 | 22°C (71°F) | 4°C (39°F) | 0" |
| 2008 | -7°C (20°F) | -11°C (13°F) | 0.2" |
| 2007 | 8°C (47°F) | -2°C (29°F) | -- |
| 2006 | 24°C (75°F) | 4°C (40°F) | 0" |
| 2005 | 20°C (68°F) | 2°C (36°F) | 0" |
| 2004 | 13°C (56°F) | -2°C (29°F) | 0" |
| 2003 | 22°C (71°F) | 1°C (34°F) | 0" |
| 2002 | 17°C (63°F) | 2°C (35°F) | 0" |
| 2001 | 9°C (48°F) | -6°C (21°F) | 0" |
| 2000 | 21°C (69°F) | -2°C (29°F) | 0" |
| 1999 | 5°C (41°F) | 1°C (33°F) | 1.46" |
| 1998 | 22°C (72°F) | 1°C (34°F) | 0" |
| 1997 | 12°C (54°F) | 1°C (34°F) | 0.16" |
| 1996 | 9°C (48°F) | -3°C (27°F) | 0" |
| 1995 | 11°C (51°F) | -1°C (30°F) | 0" |
| 1994 | 23°C (74°F) | 4°C (40°F) | 0" |
| 1993 | 17°C (63°F) | -3°C (26°F) | 0" |
| 1992 | 14°C (57°F) | 2°C (35°F) | 0.02" |
| 1991 | 19°C (67°F) | -2°C (29°F) | 0" |
| 1990 | 19°C (67°F) | 5°C (41°F) | 0" |
| 1989 | 19°C (67°F) | 5°C (41°F) | 0" |
| 1988 | 13°C (56°F) | -3°C (27°F) | 0" |
| 1987 | 18°C (64°F) | 3°C (37°F) | 0" |
| 1986 | 19°C (67°F) | 5°C (41°F) | 0.1" |
| 1985 | 3°C (38°F) | -2°C (29°F) | 0.04" |
| 1984 | 18°C (64°F) | -- | 0" |
| 1983 | 22°C (72°F) | 2°C (36°F) | 0" |
| 1982 | 22°C (72°F) | 1°C (34°F) | 0" |
| 1981 | 17°C (62°F) | 4°C (39°F) | 0" |
| 1980 | 9°C (48°F) | 2°C (36°F) | 0" |
| 1979 | 7°C (45°F) | -2°C (29°F) | 0" |
| 1978 | 4°C (39°F) | 1°C (33°F) | -- |
| 1977 | 12°C (54°F) | -6°C (22°F) | 0" |
| 1976 | 9°C (48°F) | 1°C (33°F) | 0" |
| 1975 | 11°C (51°F) | -4°C (25°F) | 0" |
| 1974 | 14°C (57°F) | -2°C (28°F) | 0" |
| 1973 | 14°C (58°F) | -2°C (28°F) | 0" |
| 1972 | 12°C (53°F) | 1°C (33°F) | 0" |
| 1971 | 14°C (58°F) | 2°C (35°F) | 0" |