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In terms of precipitation, rainfall in Mont-Joli ranges from 2.4 - 3.1 inches per month. June is typically the wettest month, when rainfall can reach 3.1 in. March is typically the driest time to visit Mont-Joli when rainfall is around 2.4 in.
If weather is an important factor for your trip to Mont-Joli, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 F).