| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -4.9° | -13.8° | 62.5mm | 10.5 | 9 |
| February | -2.6° | -13.3° | 50.8mm | 8.9 | 12 |
| March | 3.2° | -6.8° | 59.2mm | 9 | 15 |
| April | 11.6° | 0.8° | 80mm | 9.5 | 52 |
| May | 19.9° | 8.3° | 80.6mm | 10 | 80 |
| June | 24.6° | 13.6° | 93.2mm | 10.7 | 79 |
| July | 26.8° | 16.3° | 95.6mm | 10.4 | 79 |
| August | 25.8° | 15.2° | 90.9mm | 8.6 | 83 |
| September | 21.3° | 10.9° | 92.4mm | 9 | 82 |
| October | 13.7° | 4.7° | 102.7mm | 10.6 | 59 |
| November | 6.2° | -1.8° | 76.3mm | 10 | 30 |
| December | -0.9° | -8.5° | 76.6mm | 10.9 | 8 |
January in Repentigny averages a daily high of -4.9°C with nights around -13.8°C. Expect roughly 10.5 wet days totalling 62.5mm. A hard month to visit for comfort alone.
February in Repentigny averages a daily high of -2.6°C with nights around -13.3°C. Expect roughly 8.9 wet days totalling 50.8mm. A hard month to visit for comfort alone.
March in Repentigny averages a daily high of 3.2°C with nights around -6.8°C. Expect roughly 9 wet days totalling 59.2mm. A hard month to visit for comfort alone.
April in Repentigny averages a daily high of 11.6°C with nights around 0.8°C. Expect roughly 9.5 wet days totalling 80mm. Demanding conditions — pack for it and plan indoor options.
May in Repentigny averages a daily high of 19.9°C with nights around 8.3°C. Expect roughly 10 wet days totalling 80.6mm. Comfortable conditions for being outdoors all day.
June in Repentigny averages a daily high of 24.6°C with nights around 13.6°C. Expect roughly 10.7 wet days totalling 93.2mm. Comfortable conditions for being outdoors all day.
July in Repentigny averages a daily high of 26.8°C with nights around 16.3°C. Expect roughly 10.4 wet days totalling 95.6mm. Comfortable conditions for being outdoors all day.
August in Repentigny averages a daily high of 25.8°C with nights around 15.2°C. Expect roughly 8.6 wet days totalling 90.9mm. Comfortable conditions for being outdoors all day.
September in Repentigny averages a daily high of 21.3°C with nights around 10.9°C. Expect roughly 9 wet days totalling 92.4mm. Comfortable conditions for being outdoors all day.
October in Repentigny averages a daily high of 13.7°C with nights around 4.7°C. Expect roughly 10.6 wet days totalling 102.7mm. Generally workable, with some weather to plan around.
November in Repentigny averages a daily high of 6.2°C with nights around -1.8°C. Expect roughly 10 wet days totalling 76.3mm. A hard month to visit for comfort alone.
December in Repentigny averages a daily high of -0.9°C with nights around -8.5°C. Expect roughly 10.9 wet days totalling 76.6mm. A hard month to visit for comfort alone.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Repentigny peaks at 83.
Based on 30 years of records, May–September scores highest for comfort in Repentigny, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 26.8°C.
October is the wettest, averaging 102.7mm of rain across roughly 10.6 wet days.
January is the coolest month, with average daily highs around -4.9°C.