Ottawa is the capital of Canada. It is the second largest city in the  Province of Ontario and the fourth largest city in the Canada.  The city is located on the south bank of the Ottawa river in the eastern portion of southern Ontario. It borders Gatineau and Quebec, which are located on the north bank of the Ottawa River and togethering form the National Capital Region (NCR).
The city has population of 883,391 in the 2011 census. According to the Mercer ranking, Ottawa is the 2nd  highest quality of living than any large city in the Americas and the 14th highest in the world. It is also ranked as the 2nd cleanest city in Canada and the 3rd cleanest city in the world. In 2012, the city was ranked for the third consecutives year as the best community in Canada to live in by MoneySense.
Geography:
Ottawa is situated on the south bank of the Ottawa River and contains the mouths of the Rideau River and Rideau Canal. The older part of the city is known as Lower Town and occupies an area between the rivers and the canal. The Centertown and Downtown Ottawa, which is known as the city’s financial and commercial hub, lies on the west across the canal.
Across the Ottawa River, that forms the border between Ontario and Quebec, lies the city of Gatineau, itself the result of former Quebec cities of Hull and Aylmer together with Gatineau. Although formally and administratively separate cities in two separate provinces, Ottawa and Gatineau, collectively constitute the National Capital Region.
Climate:
Ottawa has a humid continental climate with four distinct seasons. The average July maximum temperature is 26.5 °C ( 80 °F) and the average January minimum temperature is -15.3 °C (4.5 °F).
Summers are warm and humid in Ottawa and Snow & ice are dominant during the winter season. Ottawa receives about 235 centimeters (93 in) of snowfall annually.  Days well above freezing and nights below -30 °C both occurs in the winter.
Spring and fall are variable, prone to extremes in temperature and unpredictable swings in conditions. Hot days above 30 °C have occurred as early as April or as late as September, as well as snow well into May and early in October.