In January, Saint-Hyacinthe typically sees daytime highs of -5.7°C and overnight lows around -15.5°C. Compared to the annual average high of 10.8°C, January runs -16.5°C.
January in Saint-Hyacinthe averages a daytime high of -5.7°C and an overnight low of -15.5°C.
January runs -16.5°C compared to Saint-Hyacinthe's annual average high of 10.8°C, ranking #12 of 12 months by warmth.
Plan for daytime highs near -5.7°C and cooler evenings around -15.5°C.