Weather in Sherbrooke in January
Canada · 20-year averages, January
The month to avoid. Of the twelve, January is the one to avoid. Highs sit at -5.8 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.
January ranks 10 of 12 — near the bottom of Sherbrooke's year. September is the month that works, and the swing between the two is 63 points, which is a different holiday rather than a slightly better one.
This is persistent light rain rather than storms: 15 wet days but only 1 heavy ones. It rarely cancels anything outright, and it rarely fully clears either. A jacket beats an umbrella. Layers, and a genuinely waterproof outer — at -5.8 °C the difference between a good day and a miserable one is entirely down to what you are wearing.
What the averages hide
Averages flatten a month, and this one hides a few things: 30 nights drop below freezing, so anything left outside stays frozen. Across the twenty years measured, the hottest January day reached 13.7 °C and the coldest night fell to -38.4 °C, and the wettest single day dropped 29 mm — roughly 45% of the month's rain in one day.
January is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest January on record still delivered 113 mm against 31 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 65 mm average is a reasonable planning figure, not a promise.
Wind is light at 4 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 95%, which at -5.8 °C means damp rather than muggy — the kind of cold that gets into a coat and stays there.
How January sits in the year
This is a turning point in the year — December and February sit on opposite sides of it, so the month contains the change rather than following it.
Daylight in January
January sits at the dark end of Sherbrooke's year — 9.1 hours of daylight against 15.6 at midsummer, gaining 0.9 hours across the month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.
An inland climate
With no coast nearby, the year swings a fair way — 39.7 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.
How busy it gets
Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
January in Sherbrooke versus nearby
If Sherbrooke is one option among several, the nearby comparison is worth making. Montréal is close enough to be a coin toss — within a degree on temperature, 1 day less rain. Québec is close enough to be a coin toss — within a degree on temperature, 3 days less rain.
So: January is a compromise. September is 60 points better and is what Sherbrooke is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in Sherbrooke
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | -5.8 | -15.2 | 15 | 65 | 95 | 9.1 | 13 |
| February | -4.5 | -14.6 | 13 | 63 | 95 | 10.4 | 16 |
| March | 1 | -8.6 | 14 | 73 | 90 | 11.8 | 13 |
| April | 9.5 | -0.7 | 15 | 88 | 83 | 13.5 | 37 |
| May | 17.4 | 6.2 | 17 | 102 | 80 | 14.9 | 60 |
| June | 22 | 11.8 | 19 | 120 | 81 | 15.6 | 65 |
| July | 24.5 | 14.9 | 21 | 117 | 83 | 15.4 | 65 |
| August | 23.7 | 14.1 | 18 | 119 | 83 | 14.2 | 67 |
| September | 20.4 | 9.9 | 14 | 92 | 82 | 12.6 | 73 |
| October | 12.6 | 3.6 | 16 | 120 | 85 | 11 | 47 |
| November | 5 | -2.8 | 15 | 84 | 89 | 9.6 | 21 |
| December | -2.3 | -10.1 | 16 | 92 | 94 | 8.8 | 10 |
See all twelve months in Sherbrooke, or where else to go in January.
Planning the rest of the trip
- Where to eat & stay in Sherbrooke every café, restaurant and hotel
- Flight time to Sherbrooke how long you are actually in the air
- Sherbrooke time zone and the difference from home
- Days until your trip count down to the departure date
- Gyms & clubs in Sherbrooke keep training while you are there