in Mississauga in general slopes gradually downward from almost 190 metres (623 ft) above sea level in some northern spots to Lake Ontario (76 m/249 ft ASL), a 110-metre (361 ft) difference over an averaged 15 kilometres (9 mi) distance. Apart from the Credit River valley and Iroquois shoreline, the only noticeable hills in Mississauga are actually part of the former Britannia Landfill near Britannia Road and Terry Fox Way. Neighbourhoods As defined by the Canadian census, the following areas are neighbourhoods in Mississauga. Applewood Central Erin Mills Churchill Meadows City Centre Clarkson-Lorne Park Cooksville Creditview Dixie East Credit Erin Mills Erindale Fairview Hurontario Lakeview Lisgar Malton Meadowvale Meadowvale Village Mineola Mississauga Valley Port Credit Rathwood Sheridan Streetsville Climate The climate of Mississauga is officially represented by Pearson International Airport but conditions can differ depending on location: fog tends to be more common along the lakeshore and in the Credit River Valley at certain times of year, particularly during the autumn. The southwestern side of the city (Clarkson) is usually significantly milder in winter and also on summer nights than northern areas which include the airport, while lakeshore areas particularly from Port Credit east through Lakeview are cooler on hot summer days and it can be noticeably cooler on sunny spring days when there is a lake breeze. During snowfalls when temperatures hover close to freezing, northern parts of the city, such as around Derry Road away from warmer Lake Ontario, tend to get more snow than the southern parts because of colder temperatures. The reverse occurs when a strong storm approaches from the south kicking up lake effect snow, bringing higher snowfall totals to south Mississauga. Summer thunderstorms are common, most are not severe but can occasionally bring violent winds. The last known tornado to cause significant damage touched down on July 7, 1985, when an F1 rated tornado struck an industrial park in the Meadowvale area, heavily damaging some buildings and some parked tractor trailers. A relatively strong tornado tore a path across Toronto Township (the precursor municipality to Mississauga) on June 24, 1923, cutting a swath from present-day Meadowvale to near Cooksville, killing four people and causing massive property damage in a time when most of the area was still rural farmland dotted with fruit orchards. Statistics References