Weather on May 18 in Calgary
Historical weather data for May 18 in Calgary, Canada
Based on 55 years of data from CALGARY GLENMORE DAM
About This Date
May 18th in Calgary, Canada typically brings mild spring weather, with average highs around 16°C and lows near 4°C. Over 55 years of records, the warmest May 18th was in 2006 (19°C average), while the coldest was 1974 (3°C) — a 30°F range across recorded history. Precipitation has occurred on 42% of recorded May 18th dates, with snow falling 4% 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 May 18th in Calgary? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 12°C (54°F) | -2°C (28°F) | -- |
| 2025 | 12°C (54°F) | 4°C (40°F) | -- |
| 2023 | 21°C (69°F) | 3°C (38°F) | 0 mm |
| 2022 | 17°C (63°F) | 2°C (35°F) | 0 mm |
| 2021 | 17°C (63°F) | 6°C (42°F) | 0 mm |
| 2020 | 19°C (67°F) | 8°C (46°F) | 0 mm |
| 2019 | 7°C (44°F) | 2°C (36°F) | 7 mm |
| 2018 | 16°C (60°F) | 6°C (42°F) | 5 mm |
| 2017 | 17°C (62°F) | 2°C (35°F) | 0 mm |
| 2016 | 24°C (76°F) | 8°C (47°F) | 2 mm |
| 2015 | 14°C (58°F) | 2°C (35°F) | 0 mm |
| 2014 | 13°C (56°F) | 7°C (45°F) | 2 mm |
| 2013 | 21°C (70°F) | -- | -- |
| 2012 | 12°C (53°F) | 2°C (35°F) | 1 mm |
| 2011 | 18°C (65°F) | 6°C (42°F) | 0 mm |
| 2010 | 26°C (78°F) | 8°C (46°F) | 4 mm |
| 2009 | 8°C (46°F) | -1°C (31°F) | 2 mm |
| 2008 | 23°C (74°F) | 12°C (54°F) | 0 mm |
| 2007 | 13°C (55°F) | 7°C (44°F) | 0 mm |
| 2006 | 26°C (79°F) | 13°C (55°F) | 0 mm |
| 2005 | 19°C (66°F) | 7°C (45°F) | 0 mm |
| 2004 | 22°C (71°F) | 3°C (38°F) | 0 mm |
| 2003 | 9°C (49°F) | -2°C (28°F) | 0 mm |
| 2002 | 15°C (59°F) | 2°C (35°F) | 1 mm |
| 2001 | 17°C (62°F) | 2°C (35°F) | 0 mm |
| 2000 | 18°C (65°F) | 6°C (42°F) | 7 mm |
| 1999 | 18°C (64°F) | -- | -- |
| 1998 | 16°C (60°F) | 7°C (44°F) | 14 mm |
| 1997 | 10°C (50°F) | 0°C (32°F) | 3 mm |
| 1996 | 17°C (63°F) | 6°C (42°F) | 2 mm |
| 1995 | 9°C (49°F) | 4°C (40°F) | 11 mm |
| 1994 | 11°C (51°F) | 4°C (40°F) | 2 mm |
| 1993 | 20°C (68°F) | 4°C (39°F) | 0 mm |
| 1992 | 25°C (77°F) | 9°C (48°F) | 0 mm |
| 1991 | 13°C (55°F) | 8°C (46°F) | 2 mm |
| 1990 | 13°C (55°F) | 3°C (37°F) | 2 mm |
| 1989 | 13°C (55°F) | 8°C (46°F) | 0 mm |
| 1988 | 16°C (60°F) | 3°C (37°F) | 0 mm |
| 1987 | 15°C (59°F) | 6°C (42°F) | 0 mm |
| 1986 | 19°C (66°F) | 4°C (39°F) | 1 mm |
| 1985 | 22°C (71°F) | 11°C (52°F) | 0 mm |
| 1984 | 17°C (63°F) | 3°C (38°F) | 0 mm |
| 1983 | 13°C (55°F) | 2°C (35°F) | 0 mm |
| 1982 | 14°C (57°F) | 6°C (43°F) | 17 mm |
| 1981 | 20°C (68°F) | 3°C (38°F) | 1 mm |
| 1980 | 25°C (77°F) | 9°C (48°F) | 0 mm |
| 1979 | 14°C (57°F) | 4°C (40°F) | 12 mm |
| 1978 | 17°C (63°F) | 6°C (42°F) | 0 mm |
| 1977 | 6°C (42°F) | 1°C (33°F) | 13 mm |
| 1976 | 17°C (62°F) | 2°C (36°F) | 0 mm |
| 1975 | 16°C (61°F) | 4°C (40°F) | 8 mm |
| 1974 | 5°C (41°F) | 1°C (33°F) | 18 mm |
| 1973 | 21°C (70°F) | 9°C (49°F) | 0 mm |
| 1972 | 13°C (55°F) | 4°C (40°F) | 0 mm |
| 1971 | 13°C (56°F) | 1°C (33°F) | 0 mm |