Montreal
Canada
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Record high, °C | 33 | 28 | 22 | 20 | 12 | 12 | 24 | 31 | 34 | 36 | 36 | 36 | 36 |
| Average high, °C | 19 | 12 | 4 | -3 | -6 | -4 | 2 | 11 | 18 | 23 | 26 | 25 | 11 |
| Average temperature, °C | 14 | 7 | 1 | -7 | -11 | -9 | -3 | 5 | 12 | 18 | 20 | 19 | 5 |
| Average low, °C | 9 | 3 | -3 | -11 | -16 | -14 | -8 | 0 | 7 | 12 | 15 | 13 | 0 |
| Record low, °C | -6 | -12 | -26 | -40 | -42 | -41 | -33 | -22 | -8 | -2 | 3 | 0 | -42 |
| Rain, days | 13 | 13 | 11 | 3 | 2 | 3 | 5 | 11 | 13 | 14 | 12 | 12 | 111 |
| Snow, days | 0 | 0 | 4 | 9 | 11 | 8 | 6 | 2 | 0 | 0 | 0 | 0 | 39 |
| Snowfall, cm. | 0 | 1 | 16 | 41 | 50 | 38 | 33 | 5 | 0 | 0 | 0 | 0 | 184 |
| Average precipitation, mm. | 99 | 98 | 103 | 67 | 74 | 59 | 64 | 92 | 93 | 114 | 98 | 88 | 1049 |
| Relative humidity, % | 75 | 74 | 78 | 81 | 79 | 79 | 76 | 71 | 67 | 69 | 72 | 71 | 74 |
| Relative humidity morning, % | 90 | 87 | 84 | 81 | 74 | 73 | 75 | 75 | 77 | 83 | 87 | 89 | 81 |
| Relative humidity evening, % | 61 | 62 | 69 | 71 | 66 | 61 | 58 | 51 | 51 | 56 | 58 | 59 | 60 |
| Wind speed, km/h | 8 | 9 | 11 | 11 | 12 | 12 | 12 | 12 | 11 | 9 | 8 | 7 | 10 |
| Monthly sunshine, часов | 186 | 150 | 88 | 98 | 116 | 155 | 200 | 191 | 227 | 237 | 270 | 235 | 2154 |
| Day Length, часов | 13 | 11 | 10 | 9 | 10 | 11 | 13 | 14 | 16 | 16 | 16 | 15 | 13 |
| Dew point, °C | 10 | 4 | -1 | -8 | -11 | -10 | -6 | 0 | 6 | 12 | 15 | 13 | 24 |
| Growing degree-day, °C | 97 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 71 | 218 | 303 | 264 | 952 |
| Atmosphere pressure, bar | 970 | 971 | 968 | 967 | 966 | 967 | 967 | 966 | 968 | 966 | 968 | 970 | 11613 |
| Solar radiation, global, Mj/m2 | 13 | 8 | 5 | 5 | 6 | 9 | 13 | 17 | 18 | 20 | 19 | 17 | 12 |