Calgary Weather in April
In April, Calgary averages a high of 11°C (51°F) and a low of -2°C (28°F), from 56 years of daily records (1971–2026).
11°C
Average high
51°F
-2°C
Average low
28°F
29°C
Record high
84°F · April 25, 1977
-20°C
Record low
-4°F · April 1, 1975
What April Is Like in Calgary
- The April heat record, 29°C (84°F) on April 25, 1977, has stood for 49 years.
- The coldest April reading, -20°C (-4°F) on April 1, 1975, has not been matched in 51 years.
- Snow falls on about 5.8 days in a typical April.
- On average, 20 nights in April drop below freezing.
At least 1 mm of rain falls on 18% of April days, and the month averages 26 mm in total.
Warmest: 1977 (16.3°C)Latest: 2026 (9.7°C)10-year averageLong-run average (10.6°C)
Look Up a Day in April
See the weather in Calgary on any April date, year by year.
Source: NOAA GHCN-Daily, Calgary Int'L Cs (1999–2026); University Of Calgary (1971–1990); Calgary Int'L A (1980–2012); Calgary Glenmore Dam (1971–1978). Averages cover 1971–2026. How we compute this