Calgary and Winnipeg have similar daytime temperatures, Calgary has 1.9°C (3.4°F) warmer nights, and both get similar annual rainfall.
Calgary is at its warmest in July and coolest in January, while Winnipeg peaks in August and bottoms out in January. Month for month, Winnipeg is the warmer of the two in 7 of 12 months.
Both collect a similar amount of rain over the year — 524 mm (20.6 in) in Calgary and 551 mm (21.7 in) in Winnipeg. The most comfortable time to visit is June, July and August in Calgary and June, July and August in Winnipeg.
| Calgary | Metric | Winnipeg |
|---|---|---|
| 🌡️ Temperature | ||
| 18.2°C | 🌡️Average daytime high | 18.2°C |
| -10.1°C | 🌙Average nighttime low | -12°C |
| July | 🔥Hottest month | August |
| January | ❄️Coldest month | January |
| 🌧️ Rain | ||
| 524 mm | 🌧️Annual rainfall | 551 mm |
| June | ☔Wettest month | June |
| January | 🏜️Driest month | February |
| 💨 Climate | ||
| 71% | 💧Average humidity | 77% |
| 1.3 m/s | 💨Average wind speed | 3.3 m/s |
Overnight, Calgary typically falls to around -10.1°C (13.8°F) while Winnipeg settles near -12°C (10.4°F).
Calgary is hottest in July and coldest in January, whereas Winnipeg peaks in August and is coolest in January.
Calgary sees the most rain in June and the least in January; Winnipeg is wettest in June and driest in February.
Winnipeg feels the more humid of the two, averaging 77% relative humidity against 71%.
For Winnipeg, the pick of the year is June, July and August.
Month by month, here is the coldest night, the average day and the hottest afternoon each city can expect. Switch Compare to read rainfall, humidity, wind or solar instead, and Period to move between the long-term 45-year average and any single year — the shading is a quick warm-to-cool guide.
| Month | Calgary | Winnipeg | ||||
|---|---|---|---|---|---|---|
| Min | Avg | Max | Min | Avg | Max | |
| January | -25.1 | -10.1❄️ | 4.9 | -37.8 | -19.1❄️ | -0.4 |
| February | -22.7 | -7.3 | 8.1 | -35.3 | -17.2 | 0.8 |
| March | -17.5 | -2.2 | 13.2 | -26.3 | -7.3 | 11.7 |
| April | -9.4 | 5.1 | 19.5 | -9 | 6.5 | 22 |
| May | -4 | 10.4 | 24.9 | -1.8 | 13 | 27.8 |
| June | 1.5 | 14.2 | 26.8 | 5.9 | 18.4 | 30.9 |
| July | 4.8 | 17.5🔥 | 30.1 | 10.1 | 21.4🔥 | 32.7 |
| August | 3.4 | 16.7 | 30 | 8.1 | 20.6 | 33 |
| September | -2.6 | 12.1 | 26.8 | 0.8 | 14.9 | 29 |
| October | -9 | 5.5 | 20.1 | -6.5 | 7.6 | 21.7 |
| November | -17.2 | -3.7 | 9.8 | -19.4 | -5.1 | 9.3 |
| December | -23.3 | -9.7 | 4 | -33.2 | -16.3 | 0.5 |
| Annual Avg | -10.1 | 4 | 18.2 | -12 | 3.1 | 18.3 |
Min / mean / max temperature (°C). 🔥 marks each city's hottest month, ❄️ its coldest; shading runs cool blue to warm red.
The same figures plotted out, so the shape of a typical year is easier to see than in a grid. Where the two lines run close together Calgary and Winnipeg feel alike; where they separate, they are genuinely different places to be.
Hover or tap any point to read the exact figures. Calgary Winnipeg
See how Calgary and Winnipeg stack up against other cities. Swipe for more.
Choose which city to keep, then search for any other city in our database — we'll build the comparison for you.
Quick answers to the questions people ask most when comparing Calgary and Winnipeg — each drawn straight from the climate figures above.
Calgary and Winnipeg are about equally warm. Daytime highs average 18.2°C (64.8°F) in Calgary and 18.2°C (64.8°F) in Winnipeg, so neither is clearly the warmer choice over the year. Nights are milder in Calgary, with average lows of -10.1°C (13.8°F) versus -12°C (10.4°F).
Calgary is hottest in July, averaging highs of about 30.1°C (86.3°F), while Winnipeg peaks in August at around 33°C (91.4°F). That makes Winnipeg the hotter of the two at the height of summer.
Winnipeg gets colder. In its coldest month (January) overnight lows average about -37.8°C (-36°F), compared with -25.1°C (-13.1°F) at the low point of the year in Calgary.
They get a similar amount of rain over a year — about 524 mm (20.6 in) in Calgary and 551 mm (21.7 in) in Winnipeg. Calgary is wettest in June and driest in January; Winnipeg is wettest in June and driest in February.
Winnipeg is the more humid of the two, averaging 77% relative humidity over the year against 71% in Calgary.
The most comfortable months in Calgary are June, July and August, when average temperatures are at their mildest.
Winnipeg is at its most pleasant around June, July and August, based on the mildest average temperatures of the year.
Winnipeg is the warmer city in 7 of the 12 months of the year. The gap is widest in February, about 9.9°C (17.8°F), and narrowest in November, about 1.4°C (2.5°F).
Winnipeg has the bigger seasonal swing, about 40.5°C (72.9°F) between its coldest and hottest months versus 27.6°C (49.7°F) in Calgary — so Calgary has the steadier, more even climate.
On climate alone, Calgary comes out ahead — it offers lower humidity than Winnipeg. Winnipeg is the better fit only if you'd actually prefer a more humid climate.
Every figure on this page is calculated from NASA POWER satellite climate data spanning 1981–2025 (45 years). The averages describe the long-term climate of Calgary and Winnipeg, not a single year's weather or a short-range forecast.
