The best time to visit Granby
Month-by-month climate averages for Granby, Quebec, so you can pick your dates on data rather than guesswork.
The most comfortable time to visit Granby is usually May, June, July and September, when daytime highs sit in the pleasant 16-26°C range and the heaviest August rain is behind you.
Granby is warmest in July (highs near 24°C) and coldest in January (lows around -13°C), with roughly 1281 mm of precipitation across the year and August the wettest month. The sweet spot for most visitors is May, June, July and September. Expect overnight frost in January, February, March, November and December.
These are long-run averages. For the actual days you are travelling, check the live Granby forecast - and note how much the models agree, because that tells you how much to trust it.
Granby weather by month
what to expect in Granby through the year, 1991-2020 averagesHere is Granby's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Granby by season.