Toronto vs Chicago: Climate Comparison
Side-by-side monthly climate data for Toronto, Canada and Chicago, United States
At a Glance
Climate Zone
Humid Continental
Toronto
Climate Zone
Humid Continental
Chicago
Annual Mean Temp
9.6°C
49.3°F
Toronto
Annual Mean Temp
10.9°C
51.6°F
Chicago
Annual Rainfall
896.0mm
161.0 rainy days
Toronto
Annual Rainfall
1125.0mm
153.0 rainy days
Chicago
Hottest Month
July
22.1°C
Toronto
Hottest Month
July
23.1°C
Chicago
Coldest Month
January
-2.7°C
Toronto
Coldest Month
January
-2.6°C
Chicago
Monthly Temperature Comparison (°C)
| Month | Toronto Mean | Chicago Mean | Difference |
|---|---|---|---|
| January | -2.7°C | -2.6°C | -0.1°C (Chicago warmer) |
| February | -2.7°C | -1.9°C | -0.8°C (Chicago warmer) |
| March | 2.0°C | 4.2°C | -2.2°C (Chicago warmer) |
| April | 6.8°C | 8.9°C | -2.1°C (Chicago warmer) |
| May | 13.2°C | 14.9°C | -1.7°C (Chicago warmer) |
| June | 19.3°C | 21.5°C | -2.2°C (Chicago warmer) |
| July | 22.1°C | 23.1°C | -1.0°C (Chicago warmer) |
| August | 21.6°C | 22.9°C | -1.3°C (Chicago warmer) |
| September | 17.9°C | 19.6°C | -1.7°C (Chicago warmer) |
| October | 11.8°C | 12.9°C | -1.1°C (Chicago warmer) |
| November | 5.5°C | 6.2°C | -0.7°C (Chicago warmer) |
| December | 0.9°C | 1.0°C | -0.1°C (Chicago warmer) |
Monthly Precipitation Comparison (mm)
| Month | Toronto | Chicago | Bar |
|---|---|---|---|
| January | 81.8 mm | 74.6 mm | |
| February | 59.8 mm | 54.7 mm | |
| March | 67.2 mm | 95.4 mm | |
| April | 94.0 mm | 95.8 mm | |
| May | 55.6 mm | 106.7 mm | |
| June | 94.1 mm | 97.6 mm | |
| July | 90.4 mm | 172.5 mm | |
| August | 71.4 mm | 103.5 mm | |
| September | 67.1 mm | 98.2 mm | |
| October | 75.6 mm | 115.0 mm | |
| November | 58.1 mm | 49.0 mm | |
| December | 81.1 mm | 62.0 mm |
Sunshine, Humidity & Wind Comparison
| Metric | Toronto | Chicago |
|---|---|---|
| Annual Avg Humidity (%) | 71.8% | 73.2% |
| Annual Avg Wind (km/h) | 21.4 | 25.5 |
| Annual Avg UV Index | — | — |
Frequently Asked Questions
Which city is warmer, Toronto or Chicago?
Toronto has an annual mean temperature of 9.6°C (49.3°F), while Chicago averages 10.9°C (51.6°F). Chicago is warmer by 1.3°C.
Which city gets more rain, Toronto or Chicago?
Toronto receives 896.0mm of annual precipitation, while Chicago receives 1125.0mm. Chicago is wetter by 229mm.
When is the best time to visit Toronto and Chicago?
For Toronto, the best months are July, August, June. For Chicago, the best months are July, August, June.
How do the climate zones compare?
Toronto has a Humid Continental climate, while Chicago has a Humid Continental climate. Both cities share the same climate classification, though local factors like latitude, altitude, and proximity to water can create meaningful differences in their weather patterns.