| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -3.7° | -14.2° | 63.4mm | 14 | 2 |
| February | -1.9° | -13.9° | 55.3mm | 12.4 | 5 |
| March | 3.3° | -8° | 65mm | 13.7 | 4 |
| April | 10.8° | -0.6° | 78.6mm | 13.1 | 40 |
| May | 18.7° | 5.7° | 87.8mm | 13.2 | 69 |
| June | 23.3° | 11.1° | 97.8mm | 13 | 74 |
| July | 25.7° | 13.8° | 111.1mm | 13.1 | 74 |
| August | 24.9° | 12.8° | 99.4mm | 12.1 | 76 |
| September | 20.8° | 8.2° | 87.4mm | 10.3 | 79 |
| October | 13.3° | 2.8° | 90.4mm | 12.4 | 54 |
| November | 6.2° | -2.8° | 70.8mm | 13.6 | 21 |
| December | -0.5° | -9.1° | 83.6mm | 15.7 | 0 |
January in Sherbrooke averages a daily high of -3.7°C with nights around -14.2°C. Expect roughly 14 wet days totalling 63.4mm. A hard month to visit for comfort alone.
February in Sherbrooke averages a daily high of -1.9°C with nights around -13.9°C. Expect roughly 12.4 wet days totalling 55.3mm. A hard month to visit for comfort alone.
March in Sherbrooke averages a daily high of 3.3°C with nights around -8°C. Expect roughly 13.7 wet days totalling 65mm. A hard month to visit for comfort alone.
April in Sherbrooke averages a daily high of 10.8°C with nights around -0.6°C. Expect roughly 13.1 wet days totalling 78.6mm. Demanding conditions — pack for it and plan indoor options.
May in Sherbrooke averages a daily high of 18.7°C with nights around 5.7°C. Expect roughly 13.2 wet days totalling 87.8mm. Generally workable, with some weather to plan around.
June in Sherbrooke averages a daily high of 23.3°C with nights around 11.1°C. Expect roughly 13 wet days totalling 97.8mm. Generally workable, with some weather to plan around.
July in Sherbrooke averages a daily high of 25.7°C with nights around 13.8°C. Expect roughly 13.1 wet days totalling 111.1mm. Generally workable, with some weather to plan around.
August in Sherbrooke averages a daily high of 24.9°C with nights around 12.8°C. Expect roughly 12.1 wet days totalling 99.4mm. Comfortable conditions for being outdoors all day.
September in Sherbrooke averages a daily high of 20.8°C with nights around 8.2°C. Expect roughly 10.3 wet days totalling 87.4mm. Comfortable conditions for being outdoors all day.
October in Sherbrooke averages a daily high of 13.3°C with nights around 2.8°C. Expect roughly 12.4 wet days totalling 90.4mm. Demanding conditions — pack for it and plan indoor options.
November in Sherbrooke averages a daily high of 6.2°C with nights around -2.8°C. Expect roughly 13.6 wet days totalling 70.8mm. A hard month to visit for comfort alone.
December in Sherbrooke averages a daily high of -0.5°C with nights around -9.1°C. Expect roughly 15.7 wet days totalling 83.6mm. 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. Sherbrooke peaks at 79.
Based on 30 years of records, June–September scores highest for comfort in Sherbrooke, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 25.7°C.
July is the wettest, averaging 111.1mm of rain across roughly 13.1 wet days.
January is the coolest month, with average daily highs around -3.7°C.