Ottawa, where it's located

The climate of Ottawa is continental, with very cold winters and warm summers.
The city is the capital of Canada and is located in the southeast of the country, in the province of Ontario. Across the river of the same name is the city of Gatineau, Québec.
On the coldest days of the year, the temperature can drop to -25 °C (-13 °F) or even below. In 2018, it dropped to -30 °C (-22 °F). On the hottest days of the year, it can reach 35 °C (95 °F). In 2001, it reached 37 °C (98.5 °F).
The average temperature of the coldest month (January) is of -10.1 °C (14 °F), that of the warmest month (July) is of 21.2 °C (70 °F). Here are the average temperatures.
Ottawa - Average temperatures
Min (°C)-14-12-728131614104-2-9
Max (°C)-6-32111924272520136-2
Min (°F)71019364655615750392816
Max (°F)212736526675817768554328

Precipitation amounts to 920 millimeters (36.2 inches) per year: so, it is at an intermediate level. It ranges from 50 mm (2 in) in the driest month (February) to 95 mm (3.7 in) in the wettest ones (June, September). On average, 175 cm (5.7 feet) of snow fall per year. Usually it snows from November to early April. Here is the average precipitation.
Ottawa - Average precipitation

On average, there are around 2,085 sunshine hours per year. Here are the average sunshine hours per day.
Ottawa - Sunshine


Best Time

The best time to visit Ottawa is from mid-May to late September. In midsummer, especially in July and early August, there can be hot and muggy days, so, this period can be excluded if you cannot stand the heat. In May and early June, it can still be a bit cold. However, you always have to take into account the possibility of rain and changes in temperature.