Mississauga is 0.5°C (0.9°F) warmer by day, Mississauga has 10.2°C (18.4°F) warmer nights, Mississauga gets 161 mm (6.3 in) more rain a year.
Edmonton is at its warmest in August and coolest in January, while Mississauga peaks in July and bottoms out in January. Month for month, Mississauga is the warmer of the two in 12 of 12 months.
Mississauga is the wetter of the two, collecting 685 mm (27 in) of rain a year against 524 mm (20.6 in) in Edmonton. The most comfortable time to visit is June, July and August in Edmonton and June, July and August in Mississauga.
| Edmonton | Metric | Mississauga |
|---|---|---|
| 🌡️ Temperature | ||
| 17.5°C | 🌡️Average daytime high | 18°C |
| -10.7°C | 🌙Average nighttime low | -0.5°C |
| August | 🔥Hottest month | July |
| January | ❄️Coldest month | January |
| 🌧️ Rain | ||
| 524 mm | 🌧️Annual rainfall | 685 mm |
| July | ☔Wettest month | July |
| February | 🏜️Driest month | February |
| 💨 Climate | ||
| 77% | 💧Average humidity | 78% |
| 2.9 m/s | 💨Average wind speed | 4.1 m/s |
Overnight, Edmonton typically falls to around -10.7°C (12.7°F) while Mississauga settles near -0.5°C (31.1°F).
Edmonton is hottest in August and coldest in January, whereas Mississauga peaks in July and is coolest in January.
Edmonton sees the most rain in July and the least in February; Mississauga is wettest in July and driest in February.
Mississauga feels the more humid of the two, averaging 78% relative humidity against 77%.
For Mississauga, 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 | Edmonton | Mississauga | ||||
|---|---|---|---|---|---|---|
| Min | Avg | Max | Min | Avg | Max | |
| January | -30.7 | -13.8❄️ | 3 | -13.9 | -3.7❄️ | 6.5 |
| February | -26.6 | -10.7 | 5.2 | -13.4 | -3.3 | 6.8 |
| March | -19.8 | -3.3 | 13.1 | -10.3 | 0.8 | 12 |
| April | -8.9 | 6 | 20.8 | -3.1 | 6.7 | 16.4 |
| May | -2.6 | 11.5 | 25.6 | 2.3 | 12.5 | 22.6 |
| June | 3.6 | 15.3 | 27 | 7.8 | 17.2 | 26.5 |
| July | 6.8 | 18.2🔥 | 29.7 | 13 | 20.7🔥 | 28.5 |
| August | 4.8 | 17.3 | 29.7 | 13.3 | 20.6 | 28 |
| September | -1.4 | 12.3 | 26 | 8.5 | 17.1 | 25.7 |
| October | -8.3 | 5.6 | 19.4 | 2.5 | 11.4 | 20.3 |
| November | -18.6 | -5.5 | 7.6 | -3.3 | 5.4 | 14 |
| December | -27 | -12.2 | 2.7 | -9.2 | -0.3 | 8.6 |
| Annual Avg | -10.7 | 3.4 | 17.5 | -0.5 | 8.8 | 18 |
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 Edmonton and Mississauga feel alike; where they separate, they are genuinely different places to be.
Hover or tap any point to read the exact figures. Edmonton Mississauga
See how Edmonton and Mississauga 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 Edmonton and Mississauga — each drawn straight from the climate figures above.
Mississauga is the warmer of the two. It averages daytime highs of 18°C (64.4°F) against 17.5°C (63.5°F) in Edmonton — roughly 0.5°C (0.9°F) warmer by day. Nights are milder in Mississauga, with average lows of -0.5°C (31.1°F) versus -10.7°C (12.7°F).
Edmonton is hottest in August, averaging highs of about 29.7°C (85.5°F), while Mississauga peaks in July at around 28.5°C (83.2°F). That makes Edmonton the hotter of the two at the height of summer.
Edmonton gets colder. In its coldest month (January) overnight lows average about -30.7°C (-23.2°F), compared with -13.9°C (7°F) at the low point of the year in Mississauga.
Mississauga is the wetter city, collecting about 685 mm (27 in) of rain a year versus 524 mm (20.6 in) in Edmonton. Edmonton is wettest in July and driest in February; Mississauga is wettest in July and driest in February.
Humidity is similar in both, averaging around 77% in Edmonton and 78% in Mississauga across the year.
The most comfortable months in Edmonton are June, July and August, when average temperatures are at their mildest.
Mississauga is at its most pleasant around June, July and August, based on the mildest average temperatures of the year.
Mississauga is the warmer city in all 12 months of the year. The gap is widest in December, about 11.9°C (21.4°F), and narrowest in April, about 0.7°C (1.3°F).
Edmonton has the bigger seasonal swing, about 32°C (57.6°F) between its coldest and hottest months versus 24.4°C (43.9°F) in Mississauga — so Mississauga has the steadier, more even climate.
It depends what matters most to you: choose Mississauga for warmer weather and pick Edmonton if you prefer drier conditions. There is no single "better" climate — it comes down to whether you value warmth, dryness or comfort most.
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 Edmonton and Mississauga, not a single year's weather or a short-range forecast.
