Calgary weather records
Record high and low temperatures for Calgary, by month, by season, and all-time, with the dates they occurred, across 1980–2026 of daily climate history. Its hottest day on record reached 38°C on 2018-08-11; its coldest fell to -43°C on 2024-01-13.
Records by month
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have ever been in each calendar month, so each column shows its record high and its record low. Tap a month for its full averages and typical range.
| Month | Daytime high | Overnight low |
|---|---|---|
| January | 16°C2026-01-14
-31°C2024-01-12
|
6°C2026-01-13
-43°C2024-01-13
|
| February | 22°C1992-02-27
-29°C1989-02-02
|
7°C1986-02-25
-36°C1985-02-09
|
| March | 24°C2004-03-30
-22°C2011-03-01
|
8°C2026-03-19
-37°C2002-03-08
|
| April | 28°C2016-04-19
-11°C1982-04-03
|
12°C1992-04-27
-18°C2011-04-18
|
| May | 33°C1986-05-30
-1°C1996-05-08
|
15°C1986-05-31
-10°C1982-05-09
|
| June | 37°C2021-06-29
5°C2026-06-01
|
17°C1988-06-26
-2°C2000-06-01
|
| July | 36°C2021-07-01
10°C1999-07-16
|
21°C2021-07-02
2°C1999-07-15
|
| August | 38°C2018-08-11
5°C1992-08-22
|
18°C2021-08-02
-3°C1992-08-25
|
| September | 33°C2009-09-23
-1°C2019-09-29
|
17°C1998-09-08
-7°C2014-09-11
|
| October | 27°C1980-10-06
-16°C1984-10-31
|
15°C1991-10-10
-27°C1991-10-28
|
| November | 21°C2016-11-08
-25°C1985-11-26
|
8°C2025-11-10
-34°C2010-11-24
|
| December | 14°C2017-12-10
-32°C1992-12-29
|
6°C1980-12-15
-38°C1996-12-29
|
Records by season
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have reached in each meteorological season (Northern Hemisphere, each a three-month span).
| Season | Daytime high | Overnight low |
|---|---|---|
| Winter (Dec–Feb) | 22°C1992-02-27
-32°C1992-12-29
|
7°C1986-02-25
-43°C2024-01-13
|
| Spring (Mar–May) | 33°C1986-05-30
-22°C2011-03-01
|
15°C1986-05-31
-37°C2002-03-08
|
| Summer (Jun–Aug) | 38°C2018-08-11
5°C1992-08-22
|
21°C2021-07-02
-3°C1992-08-25
|
| Autumn (Sep–Nov) | 33°C2009-09-23
-25°C1985-11-26
|
17°C1998-09-08
-34°C2010-11-24
|
All-time records
The most extreme value Calgary has recorded for each metric across its entire history.
High
Low
Feels-like
Humidity
Wind
Gust
Precip
For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.