Average annual temperature is 7.2 °C
Absolute maximum temperature: 22.7 °C
Absolute minimum temperature: -30.3 °C
Number of sunny days: 160 days
Number of rainy days: 173 days
Number of snow days: 32 days
Look at detailed online map of Back Bay
* Weather data for Back Bay Canada is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 9.7 | 7.2 | 5.6 | 11.4 | 19.0 | 15.3 | 18.9 | 20.8 | 22.7 | 18.1 | 12.2 | 12.8 |
| Average daytime temperature (°C) | 3.4 | 0.7 | 3.5 | 7.1 | 11.2 | 12.5 | 16.4 | 17.0 | 16.3 | 13.6 | 6.6 | 4.6 |
| Average temperature (°C) | 0.2 | -3.3 | 1.1 | 5.0 | 8.5 | 11.2 | 14.8 | 15.3 | 14.7 | 11.7 | 3.8 | 1.9 |
| Average night temperature (°C) | -2.4 | -7.0 | -1.0 | 3.2 | 6.7 | 10.1 | 13.7 | 14.1 | 13.4 | 10.3 | 1.3 | -0.4 |
| Absolute minimum temperature (°C) | -8.8 | -30.3 | -5.6 | -3.0 | 3.8 | 6.6 | 12.3 | 12.5 | 8.8 | 2.3 | -6.0 | -8.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.2 | 10.4 | 11.9 | 13.5 | 14.9 | 15.6 | 15.2 | 14.0 | 12.5 | 11.0 | 9.6 | 8.8 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 3.9 | 6.1 | 6.9 | 9.2 | 11.4 | 6.0 | 7.6 | 8.8 | 8.3 | 7.5 | 6.2 | 4.3 |
| Precipitation (mm) | 222 | 52 | 83 | 54 | 76 | 184 | 162 | 171 | 167 | 122 | 70 | 150 |
| Sunny days | 6 | 11 | 11 | 16 | 23 | 8 | 8 | 15 | 20 | 10 | 17 | 15 |
| Rainy days | 16 | 6 | 12 | 14 | 8 | 22 | 23 | 16 | 10 | 21 | 11 | 14 |
| Snow days | 9 | 11 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The best time to visit Back Bay during the most sunny months:
Months with the longest average daylight duration in Back Bay:
The largest precipitation sum in Back Bay is at