Weather on May 20 in Calgary
Historical weather data for May 20 in Calgary, Canada
Based on 54 years of data from CALGARY GLENMORE DAM
About This Date
May 20th in Calgary, Canada typically brings mild spring weather, with average highs around 16°C and lows near 4°C. Over 54 years of records, the warmest May 20th was in 2023 (18°C average), while the coldest was 1992 (0°C) — a 33°F range across recorded history. Precipitation has occurred on 31% of recorded May 20th dates, with snow falling 6% of the time (heaviest snowfall: 10.9"). 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 Calgary? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 14°C (58°F) | 6°C (42°F) | -- |
| 2025 | 13°C (56°F) | 6°C (43°F) | -- |
| 2023 | 27°C (80°F) | 10°C (50°F) | 0 mm |
| 2022 | 9°C (48°F) | 2°C (35°F) | 1 mm |
| 2021 | 3°C (37°F) | -2°C (29°F) | 2 mm |
| 2020 | 12°C (53°F) | 8°C (46°F) | 8 mm |
| 2019 | 9°C (49°F) | -3°C (26°F) | 0 mm |
| 2018 | 24°C (76°F) | 3°C (38°F) | 0 mm |
| 2017 | 20°C (68°F) | 3°C (38°F) | 0 mm |
| 2016 | 11°C (51°F) | 2°C (35°F) | 6 mm |
| 2015 | 19°C (67°F) | 3°C (38°F) | -- |
| 2014 | 20°C (68°F) | 6°C (42°F) | 0 mm |
| 2013 | 20°C (68°F) | 3°C (38°F) | 0 mm |
| 2012 | 18°C (64°F) | 1°C (34°F) | 0 mm |
| 2011 | 18°C (64°F) | 8°C (46°F) | 0 mm |
| 2010 | 16°C (61°F) | 3°C (37°F) | 0 mm |
| 2009 | 7°C (45°F) | 1°C (33°F) | 0 mm |
| 2008 | 24°C (75°F) | 10°C (50°F) | 0 mm |
| 2007 | 13°C (56°F) | 4°C (40°F) | 30 mm |
| 2006 | 20°C (68°F) | 8°C (46°F) | 0 mm |
| 2005 | 17°C (63°F) | 2°C (36°F) | 0 mm |
| 2004 | 9°C (49°F) | 4°C (40°F) | 19 mm |
| 2003 | 15°C (59°F) | 1°C (33°F) | 0 mm |
| 2002 | 21°C (69°F) | 7°C (44°F) | 0 mm |
| 2001 | 15°C (59°F) | 2°C (35°F) | 0 mm |
| 2000 | 19°C (67°F) | 8°C (47°F) | 0 mm |
| 1999 | 14°C (57°F) | 0°C (32°F) | 20 mm |
| 1998 | 22°C (71°F) | 4°C (39°F) | 0 mm |
| 1997 | 2°C (36°F) | -1°C (31°F) | 62 mm |
| 1995 | 17°C (62°F) | 1°C (33°F) | 7 mm |
| 1994 | 6°C (43°F) | 2°C (35°F) | 35 mm |
| 1993 | 23°C (73°F) | 9°C (48°F) | 7 mm |
| 1992 | 2°C (35°F) | -2°C (29°F) | 10 mm |
| 1991 | 24°C (75°F) | 11°C (52°F) | 0 mm |
| 1990 | 15°C (59°F) | 1°C (34°F) | 6 mm |
| 1989 | 15°C (59°F) | 4°C (39°F) | 0 mm |
| 1988 | 18°C (64°F) | 7°C (45°F) | 5 mm |
| 1987 | 10°C (50°F) | -3°C (26°F) | 0 mm |
| 1986 | 23°C (73°F) | 7°C (44°F) | 0 mm |
| 1985 | 26°C (79°F) | 9°C (48°F) | 0 mm |
| 1984 | 14°C (57°F) | 6°C (43°F) | 0 mm |
| 1983 | 20°C (68°F) | 6°C (43°F) | 0 mm |
| 1982 | 19°C (67°F) | 1°C (33°F) | 0 mm |
| 1981 | 17°C (63°F) | 11°C (51°F) | 15 mm |
| 1980 | 23°C (74°F) | 6°C (43°F) | 0 mm |
| 1979 | 17°C (63°F) | 0°C (32°F) | 0 mm |
| 1978 | 23°C (74°F) | 4°C (40°F) | 0 mm |
| 1977 | 19°C (66°F) | 3°C (38°F) | 0 mm |
| 1976 | 7°C (44°F) | 3°C (38°F) | 86 mm |
| 1975 | 11°C (52°F) | 4°C (40°F) | 0 mm |
| 1974 | 13°C (55°F) | -1°C (31°F) | 0 mm |
| 1973 | 11°C (52°F) | 4°C (40°F) | 10 mm |
| 1972 | 21°C (70°F) | 3°C (38°F) | 0 mm |
| 1971 | 14°C (58°F) | 6°C (43°F) | -- |