the last time lake ontario frozen over was approximately 13, 000 years ago.
when was the last time lake ontario frozen over?
approximately 13, 000 years ago
foggy conditions (particularly in fall) can be created by thermal contrasts and can be an impediment for recreational boaters. in a normal winter, lake ontario will be at most one quarter ice-covered, in a mild winter almost completely unfrozen. lake ontario has completely frozen over on five recorded occasions: from about january 20 to about march 20, 1830; in 1874; in 1893; in 1912; and in february 1934.
lake ontario
bullet::::- newmarket - region wells and water from lake ontario





















































bullet::::- whitchurch-stouffville - region wells, water from lake ontario, private wells





















































bullet::::- markham - water from lake ontario and private wells





















































bullet::::- richmond hill - water from lake ontario and private wells





















































bullet::::- aurora - water from lake ontario and private wells





















































bullet::::- vaughan - water from lake ontario and private wells





















































bullet::::- king - water from lake ontario, region and private wells





















































water is distributed from 14 water pumping stations and stored at 37 elevated tanks and reservoirs:





















































section::::water.:list of water tanks.
regional municipality of york