Essex County is the southernmost county and census division in Canada located in Southwestern Ontario. The administrative seat is the Town of Essex. Essex County has a population of 177,720, and the census division including Windsor and Pelee has a population of 388,782 as of the Canada 2011 Census, making it one of the most populous divisions in Ontario.

Essex County is largely composed of clay-based soils, with sandy soils along the beaches and shores. For the most part, Essex County is flat farmland, with some woodlots. There is a small 30–50 foot (10–15 m) high ridge near Kingsville and Leamington in the southern part of the county, and large marshland near Hillman Marsh Conservation Area, and Point Pelee National park. The most built-up part of the county is the city of Windsor, Ontario. Excluding Windsor (which is a Separated Municipality), Leamington is the most urbanized part of the county.

Essex County hosts some of the warmest summer weather in Canada, given that it is the southernmost part of Canada. It has a humid continental climate with four distinct seasons, with cold, wet winters with considerable amounts of snow, and warm or hot summers. Early spring and late summer are the likeliest time for thunderstorm development.

Thunderstorms often break out every five to seven days during the spring and summer. (Windsor, Ontario is considered by some as the "thunderstorm capital" of Canada). Many storms are categorized as severe, often bringing small to significant-sized hail and strong, possibly damaging winds. Tornadoes can be likely with certain storms. Southwestern Ontario averages the most tornadoes in Canada. Temperatures usually cool by mid to late October, making way for winter. Snowfall will usually start between mid-November and late-December.

en.wikipedia.org/wiki/Essex_County,_Ontario