Based on ant species, Toronto ants are active in different months of the year and year-round. For instance, Pharaoh ants are most active year-round, and Pavement ants are active during the Spring (April to May) and the Summer (June to August). Similar to Pavement ants, Fire/Red Ants are most active during the Spring and the Summer. Moreover, the Black Carpenter ants are most active in the summer, spring, and fall (September to November), especially when the weather is damp. The most active months of ants in Toronto are from April to August, in general.